EP0203377B1 - Tunnel de soufflage pour sécher des pièces à usiner lacquées - Google Patents

Tunnel de soufflage pour sécher des pièces à usiner lacquées Download PDF

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Publication number
EP0203377B1
EP0203377B1 EP86105663A EP86105663A EP0203377B1 EP 0203377 B1 EP0203377 B1 EP 0203377B1 EP 86105663 A EP86105663 A EP 86105663A EP 86105663 A EP86105663 A EP 86105663A EP 0203377 B1 EP0203377 B1 EP 0203377B1
Authority
EP
European Patent Office
Prior art keywords
blow
tunnel
zone
workpieces
radiation elements
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
Application number
EP86105663A
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German (de)
English (en)
Other versions
EP0203377A1 (fr
Inventor
Dieter Lauterwasser
Bernd Kleinteich
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke 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=6269512&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0203377(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of EP0203377A1 publication Critical patent/EP0203377A1/fr
Application granted granted Critical
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B15/00—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form
    • F26B15/10—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions
    • F26B15/12—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/28—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun
    • F26B3/283—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun in combination with convection
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B2210/00—Drying processes and machines for solid objects characterised by the specific requirements of the drying good
    • F26B2210/12—Vehicle bodies, e.g. after being painted

Definitions

  • the invention relates to a device of the type specified in the preamble of the first claim.
  • the object of the present invention is to remedy this situation and to design a device of the type mentioned at the outset such that adequate drying of the coated objects can be carried out with little space and time required even when using solvents which are difficult to evaporate.
  • the arrangement according to the invention creates a blowing tunnel, in which it is ensured in the first zone by the radiators that sufficient evaporation of the solvent is achieved and by the inflowing air that the removal of solvent is ensured.
  • the body surface temperature is recooled, which enables the body to be further treated by additional painting processes without any loss of quality. Due to the mutually offset use of the emitters with the blowing nozzles, a blowing tunnel is created which also removes difficult-to-evaporate solvents from the paint film within a very short time, so that, especially in large-scale production, neither the cycle times nor the space required for painting need to be changed significantly compared to the previous method. This also results in a uniform heating of the entire body and thus a more even evaporation.
  • the first and second zones are equipped differently according to the invention and, moreover, the infrared heaters and the blowing nozzles are arranged alternately in the first zone. It is only on the basis of this arrangement that the problem set at the outset can be solved satisfactorily.
  • Infrared emitters have proven to be particularly suitable emitters. It is known to use infrared drying for accelerated film formation in painted workpieces. However, their use in large series systems has not previously been considered possible because the emitters feared that the painted workpieces would be heated up too much and therefore an increased space requirement and / or time required for the necessary cooling before the next processing steps was expected.
  • blow tunnel constructed in accordance with the invention is shown schematically in perspective.
  • the blow tunnel 1 consists of a first zone 2 and a second zone 3. These two zones 2, 3 represent the core zones of the blow tunnel.
  • an inlet area known per se can also be provided in the direction of flow in front of zone 2, as well as an area adjacent to the zone 3 subsequent discharge area.
  • a conveyor 4 is provided on the bottom of the blow tunnel 1 for transporting the workpieces, in particular the motor vehicle bodies.
  • Such conveyors are generally known and are therefore - since they do not fall under the subject of the invention - not described in detail.
  • the blow tunnel 1 preferably has an octagonal cross section to ensure that all painted surfaces of the motor vehicle bodies can be dried uniformly and sufficiently quickly.
  • infrared emitters 5 and blowing nozzles 6 are alternately offset in zone 2 in the opposite wall areas and in the ceiling area.
  • the blowing nozzles 6 are connected to a known, not shown supply air delivery system.
  • the air emerging from the blowing nozzles can be tempered, depending on the requirements. Temperature ranges between 23 ° C and 70 ° C are preferred.
  • the infrared radiators 5 can be regulated and therefore emit a variable power.
  • Zone 2 it can make sense to divide Zone 2 into two sections of the same structure and to connect the blowing nozzles of the two sections to separate air delivery systems in order to achieve different blowing air temperatures and quantities and different levels of humidity in Zone 2.
  • Zone 3 connects seamlessly to Zone 2. This consists only of a plurality of blowing nozzles 6. This zone 3 serves to cool the heated motor vehicle body. This is therefore necessary in the subsequent processing step, e.g. B. when applying a clear coat to get a cheap, low sheet temperature.
  • the blow nozzles 6 provided there are therefore connected to a further air guidance system in order to obtain the necessary cold air. Air temperatures of approximately 10 ° C. to 23 ° C. are preferred.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Drying Of Solid Materials (AREA)

Claims (5)

1. Tunnel de soufflage pour le séchage de pièces laquées, notamment de carrosseries automobiles, constitué par un dispositif de transport pour le transport des pièces à travers le tunnel de soufflage ainsi que par une multitude de radiateurs (et/ou de buses soufflantes disposées sur les parois et/ou le plafond du tunnel, qui sont reliés à un système de refoulement d'air et soufflant de l'air sur les pièces à sécher, le tunnel de soufflage étant par ailleurs divisé en deux zones, caractérisé en ce que dans la première zone, considérée dans le sens du passage des pièces, des radiateurs (5) et des buses soufflantes (6) sont disposés alternés et décalés et en ce que seules des buses soufflantes (6) sont disposées dans la deuxième zone (3) qui s'y raccorde.
2. Tunnel de soufflage selon la revendication 1, caractérisé en ce que des radiateurs à infrarouges sont prévus comme radiateurs (5).
3. Tunnel de soufflage selon l'une des revendications qui précèdent, caractérisé en ce que la température de l'air de soufflage est réglable.
4. Tunnel de soufflage selon l'une des revendications qui précèdent, caractérisé en ce que les radiateurs (5) émettent une puissance calorifique variable et réglable.
5. Tunnel de soufflage selon l'une des revendications qui précèdent, caractérisé en ce que les buses de soufflage sont réunies en groupes qui sont reliés séparément au système de refoulement d'air.
EP86105663A 1985-04-30 1986-04-24 Tunnel de soufflage pour sécher des pièces à usiner lacquées Expired EP0203377B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3515600 1985-04-30
DE3515600A DE3515600C1 (de) 1985-04-30 1985-04-30 Blastunnel zum Trocknen von lackierten Werkstuecken

Publications (2)

Publication Number Publication Date
EP0203377A1 EP0203377A1 (fr) 1986-12-03
EP0203377B1 true EP0203377B1 (fr) 1989-12-20

Family

ID=6269512

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86105663A Expired EP0203377B1 (fr) 1985-04-30 1986-04-24 Tunnel de soufflage pour sécher des pièces à usiner lacquées

Country Status (2)

Country Link
EP (1) EP0203377B1 (fr)
DE (2) DE3515600C1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3806257A1 (de) * 1988-02-27 1989-08-31 Audi Ag Verfahren zum lackieren von kraftfahrzeugkarosserien oder deren teilen
AU2570492A (en) * 1991-08-29 1993-04-05 Abb Flakt, Inc. Paint baking oven with infrared lamps
DE4336856A1 (de) * 1993-10-28 1995-05-04 Bayerische Motoren Werke Ag Verfahren zum Trocknen von Automobillacken
DE4336857A1 (de) * 1993-10-28 1995-05-04 Bayerische Motoren Werke Ag Verfahren zum Trocknen von Automobillacken
AT403518B (de) * 1993-12-01 1998-03-25 Hoffmann Friedrich Verfahren und einrichtung zum trocknen und/oder aushärten von beschichtungen
FR2806153B1 (fr) * 2000-03-09 2002-05-17 Renault Installation de chauffage des dessous de caisse de vehicule automobile apres injection de cire
DE102004042855B3 (de) * 2004-09-04 2006-01-05 Eisenmann Maschinenbau Gmbh & Co. Kg Kühlvorrichtung für beschichtete und unter Erwärmung getrocknete Gegenstände und Verfahren zum Betreiben einer solchen
JP5196967B2 (ja) 2007-11-15 2013-05-15 株式会社大気社 塗装用乾燥方法及び塗装用乾燥装置
DE102012002865B4 (de) 2012-02-11 2021-06-10 Gogas Goch Gmbh & Co. Kg Verfahren zur energetischen Optimierung des Trocknungsprozesses von mit organisch-lösemittelhaltigen Stoffen behandelten Erzeugnissen
DE102013004131B4 (de) 2013-03-09 2022-07-28 Volkswagen Aktiengesellschaft Vorrichtung zum Behandeln einer Beschichtung einer Fahrzeugkarosserie

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE761999C (de) * 1942-07-03 1953-09-28 Aeg Einrichtung zum Trocknen von lackierten Gegenstaenden durch Leuchtkoerperbestrahlung
US4257172A (en) * 1979-01-22 1981-03-24 Olympic Infra-Dry Inc. Combination forced air and infrared dryer
DE3016437A1 (de) * 1980-04-29 1981-11-05 Eisenmann KG Maschinenbau-Gesellschaft mbH & Co, 7030 Böblingen Durchlaufkabine zur waermebehandlung einer oberflaechenschutzschicht, insbesondere einer lack- oder emailschicht
US4295826A (en) * 1980-06-20 1981-10-20 Michael Vasilantone Infrared dryer
GB2091858B (en) * 1980-12-11 1984-09-26 Infraroedteknik Ab Surface treatment of objects
GB2123537B (en) * 1982-05-17 1985-10-02 Electricity Council Convective drying
DE3406789C1 (de) * 1984-02-24 1989-07-20 Adolf 7251 Weissach Berkmann Verfahren zum Trocknen von insbesondere pulverbeschichteten Werkstuecken durch Infrarotstrahlung

Also Published As

Publication number Publication date
EP0203377A1 (fr) 1986-12-03
DE3667722D1 (de) 1990-01-25
DE3515600C1 (de) 1986-10-09

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