EP1610908A1 - Procede, appareil et logiciel destines au revetement - Google Patents

Procede, appareil et logiciel destines au revetement

Info

Publication number
EP1610908A1
EP1610908A1 EP04725577A EP04725577A EP1610908A1 EP 1610908 A1 EP1610908 A1 EP 1610908A1 EP 04725577 A EP04725577 A EP 04725577A EP 04725577 A EP04725577 A EP 04725577A EP 1610908 A1 EP1610908 A1 EP 1610908A1
Authority
EP
European Patent Office
Prior art keywords
information
coating
work device
work
information carrier
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.)
Withdrawn
Application number
EP04725577A
Other languages
German (de)
English (en)
Swedish (sv)
Inventor
Mikael Hakansson
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.)
Mevein Holding AG
Original Assignee
Mevein Holding 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 Mevein Holding AG filed Critical Mevein Holding AG
Publication of EP1610908A1 publication Critical patent/EP1610908A1/fr
Withdrawn legal-status Critical Current

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
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
    • B05B12/12—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to conditions of ambient medium or target, e.g. humidity, temperature position or movement of the target relative to the spray apparatus
    • B05B12/122—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to conditions of ambient medium or target, e.g. humidity, temperature position or movement of the target relative to the spray apparatus responsive to presence or shape of target
    • 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
    • B05B12/16—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling the spray area
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material
    • 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
    • B05B13/0431—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 with spray heads moved by robots or articulated arms, e.g. for applying liquid or other fluent material to 3D-surfaces
    • 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
    • B05C11/02—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface
    • B05C11/06—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface with a blast of gas or vapour
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Definitions

  • the present invention relates to a method and device for in particular surface treatment of a part Using a programmable work device.
  • a large number of parts, components and devices are surface treated for different purposes such as protection, durability, appearance and esthetical impression.
  • the surface treatment comprises in many cases painting with or without colour pigmentation.
  • Common methods in particular during series production is paint spraying with powder, so called powder coating, or with liquid, so called wet coating.
  • the protection comprises often some form of template that is arranged to the part to be coated or masking tape that is fastened to the part.
  • the masking entails a labour intensive and often a personnel intensive work in that the masking has to be attached before the coating and removed after the coating.
  • the masking can be performed automatically if the part to be masked is planar.
  • the masking tape can then be "rolled on" while the part is passed by.
  • the de-masking however still has to be performed manually. In all the masking and de-masking gives a rather large production cost, in particular for large series where this work will constitute an disproportionally large part of the production of the part. Manual masking and de-masking often causes quality problems due to that the masking material comes loose during the process or is forgotten.
  • Robots such as one type of programmable devices, are used to a certain extent in coating work but this is the case during application of the coating material and not as a remover.
  • the robot is programmed to follow the contours of the part to be coated and the coating movement is performed continuously in order to obtain an even coating layer. If automatic inspection of parts before and or after the treatment is used it might be valuable if these inspections are controlled or performed based on the specific part to be treated. It may for example be so that only certain areas of the part are important and that the rest of the areas do not need to be inspected or that the inspection can be performed with a reduced accuracy or resolution.
  • the aim of the present invention is to remedy the above mentioned problems in connection with coating work of parts by rational and appropriate use of programmable devices such as robots.
  • this is constituted by a method for removing coating from a part comprising a programmable work device, which method comprises the steps of, in a preprogrammed work cycle, move the work device to a pre-selected defined part of the part, work the pre-selected defined part, and then move the work device and repeat the steps until the part is finished.
  • the work cycle is adapted to the current part to be worked.
  • the removal comprises blowing away with a gaseous medium, suction, mechanical working or wiping of the coating material.
  • the method comprises the arrangement of information carriers in connection to the part, characterised in that it comprises the steps of moving the coated part within the working range of a robot, to initiate a control program arranged to the robot adapted for the current part and to perform the removal of the coating material on pre-selected, defined surface areas.
  • the information carrier is arranged to the first part in a series of the similar parts.
  • the information in the information carrier may also be used in order to automatically initiate inspection devices that are programmed for the current part for inspection before and/ or after the treatment of the part.
  • the work cycle of the programmable work device By controlling the work cycle of the programmable work device according to the invention, very well defined and delimited sections, areas and points may be worked, and in particular for specific parts. Thereby is obtained a repetitive and easily adaptable method of removing sections that are coated without affecting sections and areas that are to be coated. If a robot is used, thanks to its manoeuvrability the work cycle may include the working of protruding parts, holes and complexly curved parts. By using a suitable removal method a plurality of different types of coating material may be removed such as for example blowing or sucking off powder coating material, wiping of wet paint, mechanical work of hard coatings, etc.
  • information carriers are arranged to the current parts that are to be treated the robot and eventual inspection devices, as well as the transport of the parts, may be re-programmed automatically in that the information is transmitted to the robot and possibly other devices, which initiates a change of control program, which control program is adapted to the current part. It is thereby also conceivable that the information carrier is arranged to the first part in a series of parts of the same type, which enables a reduction of the number of information carriers.
  • the great advantage in this context is that the conversion of the treatment line for the part and in particular the robot that is to remove coating material from pre-defined parts is done completely automatically without the involvement of an operator.
  • the present invention is intended to be used during coating work on articles, for example painting, such as powder coating, wet coating and the like.
  • a treatment line 10 is schematically shown for articles to be coated.
  • a conveyor 12 is used in the form of a chain of a band, onto which holders 14 are hung with a certain distance between each other.
  • holders 14 are hung with a certain distance between each other.
  • the parts 16 are to be coated.
  • Parts that are to be treated are first fed into a coating station 24, usually a spray booth where the surfaces of the part are coated.
  • a spray booth where the surfaces of the part are coated.
  • only one side of the part is coated, which for example can be an apparatus housing or a backplane to an electrical device.
  • the back side is not coated. Due to the spraying in the spray booth, coating particles will however stick also to the back side, in particular around holes and lead-through as well as around edges, and in particular during powder coating where the particles are charged and drawn to the article.
  • a removal means 28 is arranged to a programmable device, in the shown case the end of a robot arm 30, which robot arm is arranged with a control system 32 capable of controlling the removal means to the desired position.
  • the control system contains a control program comprising a work cycle designed for the specific article used, which during control of the removal means during a work cycle permits it to follow very complex surfaces, such as for example double-curved surfaces, which are very difficult to mask with conventional technology.
  • the removal means can also be arranged to treat certain components such as for example protruding parts like screws, pins and the like as well as holes and recesses. The control of the removal means with the help of the robot arm then permits a very exact positioning of the removal means in relation to the article.
  • a work cycle preferably comprises transfer of the removal means to one or more pre-programmed areas or points of the article, stopping the transfer, positioning and activation of the removal means at the pre-programmed area/ point until the work is performed, and transfer to the next area/ point, possible stop of the transfer, working etc. until the article is treated.
  • the work cycle for each specific product is pre-programmed and is preferably stored in an internal memory or the like in connection to a computer or the like executing the program.
  • Activation of the specific work cycle can be performed either by choice and activation by an operator but may also be done automatically.
  • an information carrier 18 is used for transmitting information to the control system via the receiver 20 so that it is controlled in the right manner and performs the removal operations that are to be performed.
  • the information carriers can be of many different types capable of transmitting information of different kind. As a non- limiting example it may be bar-codes or other types of optically readable marking, transmitters capable of transmitting information, for example IR, Bluetooth®, radio waves, magnetically stored data or the like.
  • the information that can be transmitted by the information carriers is specific for the article that is placed in the holders.
  • the programmable device is thereby arranged with appropriate receiver 20 such as a bar-code reader, IR-receiver, receiver of radio waves and the like in order to obtain the information regarding the article.
  • the information carriers 18 are arranged at the holders of the articles.
  • a large number of designs of the removal means are used for specific parts and removals that are to be done, ranging from point-to-point to whole surfaces.
  • the use of a programmable device also implies that a large number of different parts can be treated without major adaptation work in that the control system can contain a large number of programs adapted to specific parts and that the removal means during use of a robot arm for example are arranged on tool changers, which facilitates the change of removal means.
  • the change of removal means can also be solved by other members available on the market and adapted to e.g. an industrial robot. For the case where the information carriers are used in connection to specific parts the specific work cycle intended for the specific part is loaded automatically after obtaining information.
  • the information carriers provides an automatic adaptation to the current parts.
  • the information carriers can be present at each part or more simplified at the first part in a series of similar parts. The robot thus does not need to be re-programmed for each change of type of part.
  • the removal means may for example be a nozzle that via a conduit is connected to a source of pressurized air and a valve for control of the pressurised air to the nozzle.
  • the nozzle is moved over the part to the surface part where the coating material is to be removed.
  • the pressurised air is then released to the nozzle that blows away the coating material.
  • the strength of the pressurised air that is released can be varied in a suitable way depending on the type of part and the size of the area that is to be treated.
  • suction may be arranged that takes care of surplus coating material, whereby this material can be brought back to the coating station.
  • the removal device is arranged in a sealed off compartment, for example a spray booth, whereby the removed material is allowed to fall onto the bottom of the booth, where it is taken care of for re-cycling.
  • This method is particularly suitable for powder material.
  • the removal means is also here arranged in a sealed off space, corresponding to a spray booth, in order that foreign particles do not mix with the removed coating material.
  • a nozzle may be designed with a gap, which is narrower than the part if only a band is to be removed. It is also conceivable to provide an air or suction thrust when the part has come to a certain position in relation to the nozzle in order to remove material at a certain place on the part. Suction or blowing of coating material works very well with powder coating material, but may also be applied to wet coating material. In these cases, a higher over or under-pressure may respectively be required in order to remove the coating material.
  • a specific part may also require different types of nozzles and/ or both blowing and suction in order to remove the coating material in the most suitable way.
  • the control program initiated via the information carriers may then control the robot to change nozzle and control the airflow through the nozzle.
  • Conceivable are also nozzles for blasting as work means capable of blasting abrasive sand on specific areas.
  • a wiping means may for example be used for wet coating material.
  • the thus treated and "de-masked" part is then transferred further to a finishing station 34, for example a heating furnace during powder coating, whereby the powder is heated and treated.
  • a finishing station 34 for example a heating furnace during powder coating, whereby the powder is heated and treated.
  • the holders with the parts suitably pass a control station 38 for controlling that the parts are free from defects.
  • this is often done by a manual inspection of one or more workers. It is however possible to use an inspection device in the form of for example an imaging camera connected to an imaging system capable of detecting defects on the part and when so alert. A large number of cameras are available on the market as well as software suitable for this purpose, whereby these are not going to be described in detail here.
  • the information carrier 18 may be used for providing information to the receiver 20 regarding the appearance, size, specific areas that require a more thorough inspection and areas that require lesser, or no, inspection of the part. This information is used for controlling the camera and its speed over the part, resolution (i.e. accuracy) and the like in order to obtain an optimal inspection regarding quality and processing time.
  • the part that has areas with removed coating material may be re-introduced to the coating station, in particular during powder coating, in order to coat these areas with for example another colour.
  • the re-introduction can be controlled by the information carriers that affect for example a branch switch 36 of the conveyor, which branch switch is arranged with a receiver 20 for obtaining information from the information carriers 18.
  • the re-introduction of the part with removed areas may be performed either directly after the removal step of after a treating step, by for example a hardening furnace.
  • an automatic control of the parts may be done after the removal step in order to control that the areas that are to be removed have been performed properly; this in order to avoid that parts are transferred to finishing treatment if areas are not properly removed from coating material, which reduces the rejection rate. Inspection may also be done of the untreated parts before coating.

Landscapes

  • Spray Control Apparatus (AREA)
  • General Factory Administration (AREA)

Abstract

La présente invention concerne un procédé permettant d'enlever le revêtement d'une pièce à l'aide d'un dispositif d'usinage programmable. Ce procédé consiste, dans un cycle de travail préprogrammable, à transférer le dispositif d'usinage à la partie prédéfinie de la pièce ; à usiner cette partie prédéfinie puis à transférer le dispositif d'usinage et à renouveler ces opérations jusqu'à ce que la pièce soit achevée. L'invention concerne également un support d'informations permettant d'initier ce procédé.
EP04725577A 2003-04-04 2004-04-02 Procede, appareil et logiciel destines au revetement Withdrawn EP1610908A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0300983A SE0300983D0 (sv) 2003-04-04 2003-04-04 Metod och anordning för informationsöverföring vid beläggningsarbeten
PCT/SE2004/000510 WO2004087335A1 (fr) 2003-04-04 2004-04-02 Procede, appareil et logiciel destines au revetement

Publications (1)

Publication Number Publication Date
EP1610908A1 true EP1610908A1 (fr) 2006-01-04

Family

ID=20290922

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04725577A Withdrawn EP1610908A1 (fr) 2003-04-04 2004-04-02 Procede, appareil et logiciel destines au revetement

Country Status (3)

Country Link
EP (1) EP1610908A1 (fr)
SE (1) SE0300983D0 (fr)
WO (1) WO2004087335A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006046968A1 (de) * 2006-10-04 2008-04-10 Singulus Technologies Ag Oberflächenbehandlungssystem und darin verwendbare Lackiervorrichtung
DE102011017347A1 (de) * 2011-04-16 2012-10-18 Eisenmann Ag Behandlungseinheit, Anlage und Verfahren zur Oberflächenbehandlung von Gegenständen
CN104174520A (zh) * 2014-07-28 2014-12-03 中信戴卡股份有限公司 改进的车轮喷粉线及工艺
CN105457820B (zh) * 2016-01-14 2017-09-29 东莞丰卓机电设备有限公司 一种分段变速及柔性对接喷涂智能流水线
CN108607735A (zh) * 2017-08-29 2018-10-02 桐乡风腾专利运营有限公司 汽车用手机座整理工用的装置
CN110560391B (zh) * 2019-09-29 2024-03-29 北京汇聚和新材料科技有限公司 一种工件涂层检测机及检测方法

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Publication number Priority date Publication date Assignee Title
US4355447A (en) * 1980-06-09 1982-10-26 Solid Photography, Inc. Gauging system for sculptured surfaces
NO880016L (no) * 1988-01-05 1989-07-06 Trallfa Robot As Fremgangsmaate og robotsystem for reparasjonslakkering av biler.
JP2719345B2 (ja) * 1988-03-30 1998-02-25 豊田工機株式会社 力センサを用いた加工制御装置
GB9021879D0 (en) * 1990-10-09 1990-11-21 Steel Castings Res Apparatus and method for making a shaped article
US5590454A (en) * 1994-12-21 1997-01-07 Richardson; Kendrick E. Method and apparatus for producing parts by layered subtractive machine tool techniques

Non-Patent Citations (1)

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Title
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Also Published As

Publication number Publication date
SE0300983D0 (sv) 2003-04-04
WO2004087335A1 (fr) 2004-10-14

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