EP1419824A1 - Dispositif de revêtement de pièces avec poudre - Google Patents

Dispositif de revêtement de pièces avec poudre Download PDF

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Publication number
EP1419824A1
EP1419824A1 EP03405774A EP03405774A EP1419824A1 EP 1419824 A1 EP1419824 A1 EP 1419824A1 EP 03405774 A EP03405774 A EP 03405774A EP 03405774 A EP03405774 A EP 03405774A EP 1419824 A1 EP1419824 A1 EP 1419824A1
Authority
EP
European Patent Office
Prior art keywords
powder
axis
powder spray
spray
guide arm
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
EP03405774A
Other languages
German (de)
English (en)
Other versions
EP1419824B1 (fr
Inventor
Daniel Ziwica
Wolfgang Keller
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.)
J Wagner AG
Original Assignee
J Wagner 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7976850&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1419824(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by J Wagner AG filed Critical J Wagner AG
Publication of EP1419824A1 publication Critical patent/EP1419824A1/fr
Application granted granted Critical
Publication of EP1419824B1 publication Critical patent/EP1419824B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/04—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation
    • B05B13/0447—Installation or apparatus for applying liquid or other fluent material to conveyed separate articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/08—Plant for applying liquids or other fluent materials to objects
    • B05B5/12—Plant for applying liquids or other fluent materials to objects specially adapted for coating the interior 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
    • 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

Definitions

  • the invention relates to a device for coating a workpiece with powder coating. It refers to an electrostatic powder coating, in which the coating workpiece with a layer of electrostatic charged powder is coated. In one of them Subsequent operation is the powder coated Workpiece warms up so that the powder settles on liquefied the surface of the workpiece and after the Cooling the workpiece a closed protective layer forms.
  • a system for powder coating is from the prior art known, in which, as shown in Figure 1, the workpieces 4 to be coated in a cabin 1 be transported to there with the help of one or several powder spray guns 2 are coated.
  • the Workpiece 4 is for this purpose via a guide rail or conveyor belt 6 hanging through the cabin 1 transported.
  • the Cabin 1 has a corresponding one in cabin roof 11 Recess on.
  • the cabin 1 has an area for that Hand coating on which on the long side 8.1 the cabin 1 existing door 9 is accessible.
  • FIG. 1 brings a number of disadvantages.
  • this solution can lead to an increased Powder consumption come because of certain parts of the workpiece too high due to the coating by hand Receive powder application, or by arranging the powder spray guns 2 more powder needs to be sprayed to difficult to access areas of the workpiece with sufficient To be able to provide layer thickness. A considerable one Part of the powder does not reach the desired one Places on the workpiece and thus stands for the coating not available.
  • An object of the invention is therefore a device for coating a workpiece with powder, with their help even workpieces with complicated geometrical Form with high quality, high order efficiency and the lowest possible powder consumption coated can be.
  • the device according to the invention can advantageously be used there is no additional manual coating become. Furthermore, it is very constant achievable in quality.
  • the task is accomplished by a coating device a workpiece with powder with the features according to claim 1 solved.
  • the device according to the invention thus has a coating of a workpiece with powder a powder spray device and a support member, the powder spray device rotatable about an axis of rotation relative to the support element is stored.
  • the powder spray device has one Main spray direction for the powder, which opposite the Axis of rotation deviates.
  • the powder spray device has a nozzle, wherein the orientation of the nozzle determines the main spray direction.
  • the powder spray device is advantageously as Spray gun trained. This has the advantage that the Interchangeability and flexibility can be increased. ever Depending on the application, the different conditions of use adapted spray guns can be installed.
  • the device according to the invention provides a cabin, into which the powder spraying device protrudes.
  • the Supporting element has a holder and a guide arm on, the powder spray device over the bracket is connected to the guide arm, and wherein the guide arm and the bracket is arranged outside the cabin are.
  • a first linear axis is provided on the guide arm, by means of which the powder spray device translational is movable on a first axis.
  • the device according to the invention for Coating a workpiece has a second linear axis, which in connection with the first linear axis stands, and by means of which the powder spray device is translationally movable on a second axis.
  • This additional degree of freedom allows the number of the possible different forms coatable Workpieces to increase again, which is the usability and flexibility of the device according to the invention increases.
  • the guide arm can also be driven be horizontally movable.
  • the holder a drive for the rotation of the powder spray device having. This makes the powder spray device compact construction.
  • the drive has one Stepper motor on. This can be done in a simple way the main spray direction can be set.
  • the drive can be integrated in the holder.
  • the device according to the invention in addition to the first powder spray device another powder spray device be provided. It can also reduce the total energy consumption and reduce the amount of air required.
  • the two powder spray devices are advantageous over a common bracket and over the first and / or the second linear axis is connected to the guide arm. This makes it easy to do both Powder spray devices are moved synchronously with each other.
  • the further powder spray device via a further holder is connected to the guide arm. So that becomes a further degree of freedom is achieved and it becomes possible that the two powder spray devices operated autonomously can be.
  • the first powder spray device on a first longitudinal side the cabin and the second powder spray device be arranged on the second long side of the cabin.
  • the Device according to the invention with a control for the Rotation and translation of the powder spray device is provided.
  • the device for coating a workpiece with powder for simplicity, the cabin is which the conveyor belt 6 in the vicinity of the powder spray devices 22.1 and 22.2 surrounds, not shown.
  • the most Conveyor belt 6 hanging workpieces 4 ' which differ from Differentiate workpiece 4 in FIG. 1, for example, that they have one or more cavities 4.2 and 4.3 have on the two powder spray devices 22.1 and 22.2 passed.
  • the powder sprayers 22.1 and 22.2 are each with a bracket 60 a guide arm 27 connected. On the brackets 60 is in connection with the explanations of the figures 5A and 5B.
  • the guide arm 27 is in x direction movable within a certain range stored so that the guide arm 27 during the period, those required for coating the workpiece 4 ' is parallel to the conveyor belt 6 and thus parallel move to workpiece 4 'and thus to workpiece 4' can follow. This ensures that the two Spray guns 22.1 and 22.2 for the duration of the coating can move x transversely to the direction of transport, without the distance in the x direction from the workpiece 4 ' changed. In this way, page 4.1 with the Depth T of the workpiece 4 'from a constant distance between spray gun 22.1 and 22.2 and side wall 4.1 be coated. The same applies to the two Cavities 4.2 and 4.3 of the workpiece 4 '.
  • both the ceiling and the both side walls and the bottom of the two cavities 4.2 and 4.3 can be sufficiently coated with powder the two spray guns 22.1 and 22.2 using the brackets 60 rotatable about a rotation axis A1 or A1 ' held.
  • the nozzles of the two spray guns 22.1 and 22.2 arranged so that their main spray direction by a defined angle ⁇ from the axis of rotation A1 or A1 'deviates, see FIG. 3. that, for example, the spray gun 22.2 is rotated until the main spray direction on the inner top edge 4.4 of the cavity 4.3 shows. Now the spray gun 22.2 using the linear axis 24.2 along Moving the z direction, the edge can be 4.4 effortlessly be coated evenly. These apply accordingly Designs also for the second spray gun 22.1.
  • the spray guns 22.1 and 22.2 mounted on an extension 25.1 and 25.2.
  • an extension 25.1 and 25.2. thereby is achieved that even elongated cavities with a small opening diameter can be coated.
  • the angle of rotation ⁇ around which the two spray guns 22.1 and 22.2 are rotatable depends on the technical Boundary conditions that need to be met.
  • the linear axes 24.1, 24.2, 25.1 and 25.2 can be used as Rodless linear axes designed with toothed belts his. This has the advantage that the drive is free from powder dust is protected.
  • the control of the linear axes 24.1, 24.2, 25.1 and 25.2 can be electrical or pneumatic respectively.
  • a possible further application example for the invention Device for powder coating consists in Coating of rims for motor vehicles. Through the rotation the spray gun can be at a constant distance from the Shape of the rim to be followed. The computing effort for the Controlling the movement of the spray gun is minimal.
  • FIG. 3 shows a possible embodiment of one in the Device according to the invention can be used Spray gun 22 in side view.
  • the spray gun 22 has a gun housing 31 at its front end a nozzle 32 is arranged.
  • the main beam direction or The main spray direction of the nozzle 32 is characterized by the axis A2.
  • the beam direction becomes the main beam direction A2 in which the nozzle mainly powder ejects.
  • a nozzle with a circular nozzle opening creates a cone-shaped powder jet, the Main beam direction the axis of symmetry of the cone is.
  • the main beam direction A2 deviates by the angle ⁇ from the longitudinal axis A1 of the spray gun 22.
  • the diameter of the ring depends on the angle ⁇ and the distance from the surface from the nozzle 32. In addition, depending on the orientation of the workpiece to be coated and alignment the nozzle 32 also produce other shapes.
  • the angle ⁇ can for example be between 0 and 90 degrees lie.
  • the spray gun 22 is connected via the connections 33 and 34 supplied with compressed air and powder. To make the powder electrostatic charge is additional on the spray gun 22 an electrical connection is provided.
  • the length of the neck 35 of the spray gun 22 is the adapted to technical needs.
  • the neck 35 is short.
  • two spray guns 22.3 and 22.4 by means of one common spray gun extension 41, 42 side by side be arranged.
  • the two spray guns 22.3 and 22.4 are connected to each other via the crossbar 42.
  • a tubular one closes the crossbar 42 Extension 41, which in turn at its end 41.1 a holder 60, as shown for example in Figure 5 is connected to the guide arm 27.
  • the main spray direction A2 of the two spray guns 22.3 and 22.4 in turn deviates by a defined angle ⁇ from axis A1 ''.
  • ring-shaped patterns become.
  • FIG. 5A is a possible embodiment of such a bracket 60 shown in principle in plan view.
  • the extension 25.1 is in the housing 61 of the bracket 60 via first and a second bearing 66.1 and 66.2 stored.
  • the two bearings 66.1 and 66.2 made dustproof, so that inside the housing 61 no powder dust can penetrate.
  • the housing 61 With a cover 65 closed, which preferably the housing 61 seals dustproof.
  • a drive preferably a stepper motor 63, which drives a further gear 62 via a gear 64 which in turn form or with the extension 25.1 is non-positively connected. Via the stepper motor 63 can then easily align the Nozzle 32 of the spray gun 22 can be determined.
  • the bracket 60 is shown in section. The cutting line runs along line A-A shown in Figure 5A.

Landscapes

  • Spray Control Apparatus (AREA)
  • Electrostatic Spraying Apparatus (AREA)
  • Nozzles (AREA)
EP03405774A 2002-11-08 2003-10-28 Dispositif de revêtement de pièces avec poudre Expired - Fee Related EP1419824B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20217416U DE20217416U1 (de) 2002-11-08 2002-11-08 Vorrichtung zum Beschichten eines Werkstücks mit Pulver
DE20217416U 2002-11-08

Publications (2)

Publication Number Publication Date
EP1419824A1 true EP1419824A1 (fr) 2004-05-19
EP1419824B1 EP1419824B1 (fr) 2009-01-07

Family

ID=7976850

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03405774A Expired - Fee Related EP1419824B1 (fr) 2002-11-08 2003-10-28 Dispositif de revêtement de pièces avec poudre

Country Status (3)

Country Link
US (1) US6972053B2 (fr)
EP (1) EP1419824B1 (fr)
DE (2) DE20217416U1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10359280A1 (de) * 2003-12-17 2005-07-21 Itw Gema Ag Sprühbeschichtungsvorrichtung
DE102004034021B4 (de) * 2004-07-14 2008-06-19 Venjakob Maschinenbau Gmbh & Co. Kg Verstelleinheit für eine Pistole einer Lackiereinrichtung und Lackieranlage
CN103008151B (zh) * 2012-12-06 2016-01-06 中山市君禾机电设备有限公司 一种用于卫星天线喷涂的往复机
CN106925474A (zh) * 2017-01-19 2017-07-07 浙江精劲机械有限公司 一种机筒内壁合金涂层设备
CN107096659A (zh) * 2017-04-06 2017-08-29 天长市金陵电子有限责任公司 一种用于工件表面静电粉末喷涂机
CN113426598B (zh) * 2021-07-22 2024-02-27 山东中亿木业有限公司 一种板材喷涂系统
CN114832989A (zh) * 2022-05-21 2022-08-02 深圳市平成机械有限公司 一种表面喷涂均匀的垂直吊挂式喷涂输送流水线
CN114950794B (zh) * 2022-07-07 2023-05-12 广东景元设备有限公司 一种固定悬架式柜体内腔粉末喷涂机
DE102022119668A1 (de) 2022-08-04 2024-02-15 Gema Switzerland Gmbh Anordnung und verfahren zum vorzugsweise automatischen beschichten von gegenständen
CN115318519B (zh) * 2022-08-31 2024-05-28 无锡市晟然智能装备有限公司 一种静电喷涂装置
CN116140108B (zh) * 2022-12-14 2024-01-23 盐城幼儿师范高等专科学校 一种钢结构的表面油漆喷涂装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE729469C (de) * 1939-02-19 1942-12-17 Albert Heidler Vorrichtung zum Aufspritzen von Farbfluessigkeiten auf die Innenwandungen von Hohlkoerpern, insbesondere Rohren
US4381729A (en) * 1979-07-27 1983-05-03 Compagnie Europeenne Pour L'equipment Menager "Cepem" Electrostatic powder-depositing installation
US4997502A (en) * 1989-12-12 1991-03-05 Schnaars Daniel R Process and apparatus for applying an adhesive to the interior surface of a bulk bag and gluing a plastic liner within the bag

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6941533U (de) 1969-10-24 1970-01-29 Haas & Sohn Ernst W Oel- oder gasbeheiztes schnellwaschgeraet, insbesondere fuer kraftfahrzeuge
DE19545261A1 (de) 1995-11-25 1997-06-19 Univ Gesamthochschule Siegen Interpolierende Widerstandsauslese in zwei Dimensionen für Strahlungsdetektoren nach dem Prinzip der ortsabhängigen Signalaufteilung
DE19546970B4 (de) 1995-12-15 2006-08-17 Itw Gema Ag Pulversprühvorrichtung zur elektrostatischen Sprühbeschichtung
KR100271764B1 (ko) * 1997-12-24 2000-12-01 윤종용 반도체장치 제조용 현상 장치 및 그의 제어방법
DE19811085A1 (de) 1998-03-13 1999-09-23 Wagner Int Vorrichtung und Verfahren zum Auftragen von elektrostatisch aufgeladenem Pulver auf einen geerdeten, elektrisch leitfähigen Gegenstand
US6730167B2 (en) * 2000-10-05 2004-05-04 Nordson Corporation Powder coating spray booth with a powder extraction system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE729469C (de) * 1939-02-19 1942-12-17 Albert Heidler Vorrichtung zum Aufspritzen von Farbfluessigkeiten auf die Innenwandungen von Hohlkoerpern, insbesondere Rohren
US4381729A (en) * 1979-07-27 1983-05-03 Compagnie Europeenne Pour L'equipment Menager "Cepem" Electrostatic powder-depositing installation
US4997502A (en) * 1989-12-12 1991-03-05 Schnaars Daniel R Process and apparatus for applying an adhesive to the interior surface of a bulk bag and gluing a plastic liner within the bag

Also Published As

Publication number Publication date
DE50311041D1 (de) 2009-02-26
EP1419824B1 (fr) 2009-01-07
US6972053B2 (en) 2005-12-06
US20040134422A1 (en) 2004-07-15
DE20217416U1 (de) 2003-05-28

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