EP2239062A1 - Method and device for cleaning thin metal parts - Google Patents
Method and device for cleaning thin metal parts Download PDFInfo
- Publication number
- EP2239062A1 EP2239062A1 EP09157404A EP09157404A EP2239062A1 EP 2239062 A1 EP2239062 A1 EP 2239062A1 EP 09157404 A EP09157404 A EP 09157404A EP 09157404 A EP09157404 A EP 09157404A EP 2239062 A1 EP2239062 A1 EP 2239062A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cleaning
- liquid
- tray
- container
- 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.)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/041—Cleaning travelling work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
- B08B3/123—Cleaning travelling work, e.g. webs, articles on a conveyor
Landscapes
- Cleaning By Liquid Or Steam (AREA)
Abstract
Description
La présente invention concerne un procédé et un appareil de nettoyage de pièces métalliques minces.The present invention relates to a method and apparatus for cleaning thin metal parts.
Dans plusieurs domaines de l'industrie, il est nécessaire de procéder au nettoyage de pièces métalliques minces qui, par suite d'étapes de fabrication préalables, se trouvent partiellement oxydées ou polluées par des déchets, des bavures ou écailles, ou encore enduites de graisses ou huiles ou d'autres produits potentiellement corrosifs.In several fields of industry, it is necessary to clean thin metal parts which, as a result of previous manufacturing steps, are partially oxidized or polluted by waste, burrs or scales, or coated with grease. or oils or other potentially corrosive products.
Le terme "pièce métallique mince" peut désigner dans la présente description des bandes continues de section quelconque, par exemple des bandes destinées à subir des opérations de revêtement telles que étamage ou autre traitement de surface, mais elle peut aussi désigner des fils, ainsi que des pièces qui ont été partiellement découpées ou étampées dans une bande continue, puis remises en place dans leur empreinte primitive. On sait que des étapes de ce genre sont effectuées notamment dans la fabrication de pièces métalliques minces pour des mouvements d'horlogerie. On connaît les exigences de précision et de qualité qui règnent dans ce domaine. Les opérations de nettoyage de ces pièces ont une grande importance.The term "thin metal part" may in the present description denote continuous strips of any cross section, for example strips intended to undergo coating operations such as tinning or other surface treatment, but it may also designate wires, as well as parts that have been partially cut or stamped into a continuous band and then put back into their original imprint. It is known that steps of this kind are performed in particular in the manufacture of thin metal parts for watch movements. We know the precision and quality requirements that prevail in this area. The cleaning operations of these parts are of great importance.
Un dispositif pour le nettoyage de bandes métalliques est décrit dans la demande de brevet européen
Un but de la présente invention est de proposer un procédé et un appareil plus performants que les procédés et dispositifs connus jusqu'à maintenant, en utilisant de manière combinée un liquide de nettoyage circulant régulièrement dans un bac et des émissions dirigées d'ultrasons agissant, à travers le liquide, sur la bande ou sur les pièces à nettoyer.An object of the present invention is to provide a method and apparatus more efficient than the methods and devices known hitherto, using in combination a cleaning fluid circulating regularly in a tray and directed emissions of ultrasound acting, through the liquid, on the tape or on the parts to be cleaned.
Un but de la présente invention est également de permettre à la dite bande ou aux dites pièces de traverser le bac de part en part.An object of the present invention is also to allow said strip or said parts to pass through the tray from one side.
Un autre but de la présente invention est de proposer un dispositif de joint pour l'entrée ou la sortie d'une pièce dans un bac contenant un liquide.
Pour cela, le procédé et l'appareil selon l'invention sont définis par les caractéristiques des revendications annexées.Another object of the present invention is to provide a seal device for entering or leaving a room in a tank containing a liquid.
For this, the method and the apparatus according to the invention are defined by the features of the appended claims.
L'invention sera mieux comprise à l'aide de la description qui suit, donnée à titre d'exemple non limitatif, de formes de mise en oeuvre du procédé et de l'appareil correspondant, en se référant au dessin où :
- la
fig. 1 est une vue schématique en élévation de l'ensemble de l'appareil, - les
figs 2 à 5 sont des vues en élévation longitudinale et en coupe transversale d'un exemple de dispositif d'étanchéité faisant partie de l'appareil, et - les
figs 6 et 7 sont des vues en élévation frontale et latérale du dispositif de guidage de bande de l'appareil.
- the
Fig. 1 is a schematic view in elevation of the whole apparatus, - the
figs 2 to 5 are views in longitudinal elevation and in cross section of an example of a sealing device forming part of the apparatus, and - the
figs 6 and 7 are front and side elevational views of the tape guiding device of the apparatus.
Selon une première forme d'exécution représentée à la
La circulation du liquide de nettoyage est réglée par la pompe 16 de telle manière que le niveau libre au voisinage de la paroi 8 et le long des parois longitudinales de la chambre de nettoyage délimitée par les parois 7 et 8 du bac 2 soit supérieur à la hauteur de la paroi 7, de sorte qu'un déversoir 21 est formé au haut de la paroi 7 et qu'une certaine masse de liquide ayant participé au procédé de nettoyage s'écoule par les orifices d'extraction 22 et 23 et se trouve guidée vers le fond du compartiment 5. Ce liquide, pollué par le procédé qui s'effectue dans la chambre de nettoyage du bac 2 est soumis dans le compartiment 5 à un effet de décantation de sorte que la partie "huile" qu'il contient s'amasse au haut du compartiment 5 et s'écoule par un déversoir 24 dans un bidon 25 de récupération d'huile. La partie épurée du liquide initial s'accumule donc dans le fond du compartiment 5 de la cuve de traitement 3 et par une ouverture 26 revient dans le compartiment 6 d'où elle est reprise par la pompe 16. Des capteurs 49 surveillent les niveaux de liquide dans le bac 2 et dans le compartiment 6 de manière à piloter la pompe 16. Des vannes de vidange 27 permettent l'entretien des récipients et circuits de liquides décrits ci-dessus. Ceux-ci seront de préférence en inox.The circulation of the cleaning liquid is regulated by the
Dans le bac 2, entre les parois 7 et 8, sont montés deux caissons 28, 29 contenant chacun une rangée d'émetteurs 30. Ce sont des émetteurs d'ultrasons ayant une émission dirigée. Ces deux rangées sont disposées en face l'une de l'autre de telle façon qu'une bande métallique 31 supportée et guidée entre un dérouleur 32 et un enrouleur 33 disposés eux-mêmes de part et d'autre de l'appareil, passe entre lesdites rangées d'émetteurs tout en étant immergée dans le liquide de nettoyage dont on a décrit le circuit plus haut. La vitesse de défilement de la bande devant les émetteurs 30 sera de préférence choisie entre 0.1 et 1 m/sec, la face émettrice des dits émetteurs étant de préférence disposée à une distance comprise entre 5 et 30 mm de la surface de la bande. Le dérouleur 32et l'enrouleur 33 sont des appareils standards, supportés par des supports 34 et susceptibles d'être entraînés à des vitesses réglées. La bande 31 peut être par exemple un bande dans laquelle des pièces ont été découpées, usinées puis replacées dans leur empreinte primitive.In the tray 2, between the
La bande 31 traverse les faces avant et arrière du châssis 1 de même que les parois 15a et 15b du bac 2 par l'intermédiaire de fentes de dimensions supérieures à celles de la section de la bande de façon à éviter tout contact avec la bande.The
Comme représentés sur les
Le dispositif représenté sur les
Il reste à montrer comment la bande 31 est conduite et guidée avec précision à l'intérieur du bac 2. Dans la forme d'exécution décrite ici, deux guides rigides 45 allongés (
Les dispositifs 11 et 12 peuvent être adaptés en fonction du type de bandes à traiter. Pour des applications horlogères en particulier, les bandes de laiton à traiter présenteront par exemple une largeur de l'ordre de 50 mm ou moins et une épaisseur de l'ordre de 0,5 mm. Dans ce cas, les fentes 37, 37a pourront avoir une hauteur de 0,8 mm par exemple. Les dispositifs 11 et 12 constituent ainsi des joints pneumatiques empêchant une déperdition de l'eau de nettoyage contenue dans la chambre de nettoyage du bac 2, tout en évitant tout contact physique avec la surface des pièces à nettoyer.The
L'appareil est encore complété par des buses de rinçage 43, situées derrière la paroi 9 et alimentées en eau douce pour éliminer les restes de liquide de nettoyage à la surface de la bande 31, et par des buses d'air 44, situées derrière la paroi 10 et destinées à sécher la bande 31. A cet effet, les parois 9 et 10 sont munies d'ouvertures pour le passage de la bande 31, lesdites ouvertures étant munies de brosses 13 et 14 destinées à retenir l'eau de rinçage provenant des buses 43 entre les parois 9 et 10.The apparatus is further supplemented by rinsing
Dans une autre forme d'exécution, l'appareil peut aussi être conçu pour traiter des pièces minces enchâssées dans des plaquettes ajourées séparées sans être solidaires d'une même bande. Au lieu du système dérouleur - enrouleur 32, 33 décrit, les moyens d'introduction et d'extraction consisteront par exemple en des conteneurs verticaux contenant les plaquettes empilées destinées à être soumises au traitement de nettoyage. Le conteneur d'entrée peut être équipé d'un élévateur qui amène les plaquettes une à une à la hauteur de la fente 37 et d'un poussoir qui les introduit dans cette dernière, un dispositif similaire étant prévu à la sortie. Les plaquettes peuvent avoir une épaisseur de 5 mm, les fentes et dispositifs de guidage étant dimensionnés en conséquence.In another embodiment, the apparatus may also be designed to treat thin pieces set in separate perforated plates without being integral with the same band. Instead of the unwinder-
Dans un exemple de mise en oeuvre du procédé, appliqué au lessivage de platines circulaires destinés à des mouvements d'horlogerie, des platines de boîtes de montre étaient percées, découpées et partiellement embouties dans une bande continue de laiton de 0,5 mm d'épaisseur et 50 mm de largeur. La bande était conduite à une vitesse de l'ordre de 0,3 m/min à travers le bac 2 équipé d'une batterie de 12 émetteurs d'ultrasons d'une puissance de 50 w chacun, émettant vers la bande en deux rangées opposées sous une fréquence de 25 à 27 khz. La face émettrice desdits émetteurs se trouvait à 5 mm de la bande. Le liquide de lessivage était une solution aqueuse de produits connus, spécialement destinés à l'application visée. Le débit de lessive pouvait être établi entre 10 et 80 I/min, ceci grâce à la commande de la pompe.In an exemplary implementation of the method, applied to the leaching of circular plates intended for clockwork movements, watchbox plates were drilled, cut and partially stamped in a 0.5 mm continuous brass strip. thickness and 50 mm width. The strip was driven at a speed of the order of 0.3 m / min through the tray 2 equipped with a battery of 12 ultrasound emitters of a power of 50 w each, emitting towards the band in two rows opposite at a frequency of 25 to 27 khz. The emitting face of said emitters was 5 mm from the strip. The leaching liquid was an aqueous solution of known products, especially intended for the intended application. The laundry flow could be set between 10 and 80 l / min, thanks to the pump control.
Claims (15)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES09157404T ES2391604T3 (en) | 2009-04-06 | 2009-04-06 | Cleaning device for thin metal parts |
EP20090157404 EP2239062B1 (en) | 2009-04-06 | 2009-04-06 | Device for cleaning thin metal parts |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20090157404 EP2239062B1 (en) | 2009-04-06 | 2009-04-06 | Device for cleaning thin metal parts |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2239062A1 true EP2239062A1 (en) | 2010-10-13 |
EP2239062B1 EP2239062B1 (en) | 2012-07-25 |
Family
ID=41113047
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20090157404 Active EP2239062B1 (en) | 2009-04-06 | 2009-04-06 | Device for cleaning thin metal parts |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2239062B1 (en) |
ES (1) | ES2391604T3 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104438214A (en) * | 2014-12-01 | 2015-03-25 | 中航电测仪器股份有限公司 | Continuous cleaning device and process for ultrathin coil strips |
CN105396828A (en) * | 2015-11-20 | 2016-03-16 | 无锡南方声学工程有限公司 | Conveying belt driving device of ultrasonic cleaning machine |
CN110899346A (en) * | 2019-11-18 | 2020-03-24 | 武汉钢铁有限公司 | Dust removal device for removing dust and adhesive on surface of steel belt and operation method |
CN111250467A (en) * | 2020-01-23 | 2020-06-09 | 中国水产科学研究院南海水产研究所 | Cage netting replacing and cleaning method based on culture auxiliary ship |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4788992A (en) * | 1987-04-28 | 1988-12-06 | Lewis Corporation | Ultrasonic strip cleaning apparatus |
US5118357A (en) * | 1991-03-20 | 1992-06-02 | Finishing Equipment, Inc. | Treatment fluid application and recovery apparatus and method |
US5333628A (en) * | 1992-02-12 | 1994-08-02 | Kyushu Sumitoku Electronics Co., Ltd. | Continuous ultrasonic cleaning apparatus |
EP1277528A2 (en) | 2001-07-21 | 2003-01-22 | Sundwig-Kohler GmbH | Washing machine for metal strips |
-
2009
- 2009-04-06 ES ES09157404T patent/ES2391604T3/en active Active
- 2009-04-06 EP EP20090157404 patent/EP2239062B1/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4788992A (en) * | 1987-04-28 | 1988-12-06 | Lewis Corporation | Ultrasonic strip cleaning apparatus |
US5118357A (en) * | 1991-03-20 | 1992-06-02 | Finishing Equipment, Inc. | Treatment fluid application and recovery apparatus and method |
US5333628A (en) * | 1992-02-12 | 1994-08-02 | Kyushu Sumitoku Electronics Co., Ltd. | Continuous ultrasonic cleaning apparatus |
EP1277528A2 (en) | 2001-07-21 | 2003-01-22 | Sundwig-Kohler GmbH | Washing machine for metal strips |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104438214A (en) * | 2014-12-01 | 2015-03-25 | 中航电测仪器股份有限公司 | Continuous cleaning device and process for ultrathin coil strips |
CN105396828A (en) * | 2015-11-20 | 2016-03-16 | 无锡南方声学工程有限公司 | Conveying belt driving device of ultrasonic cleaning machine |
CN110899346A (en) * | 2019-11-18 | 2020-03-24 | 武汉钢铁有限公司 | Dust removal device for removing dust and adhesive on surface of steel belt and operation method |
CN111250467A (en) * | 2020-01-23 | 2020-06-09 | 中国水产科学研究院南海水产研究所 | Cage netting replacing and cleaning method based on culture auxiliary ship |
Also Published As
Publication number | Publication date |
---|---|
EP2239062B1 (en) | 2012-07-25 |
ES2391604T3 (en) | 2012-11-28 |
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