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DE4328011C2 - Device for multi-layer painting of metal sheets - Google Patents

Device for multi-layer painting of metal sheets

Info

Publication number
DE4328011C2
DE4328011C2 DE4328011A DE4328011A DE4328011C2 DE 4328011 C2 DE4328011 C2 DE 4328011C2 DE 4328011 A DE4328011 A DE 4328011A DE 4328011 A DE4328011 A DE 4328011A DE 4328011 C2 DE4328011 C2 DE 4328011C2
Authority
DE
Germany
Prior art keywords
rollers
roller
metal sheets
paint
applicator
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 - Fee Related
Application number
DE4328011A
Other languages
German (de)
Other versions
DE4328011A1 (en
Inventor
Erwin Hammen
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.)
BASF Coatings GmbH
Original Assignee
BASF Coatings GmbH
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 BASF Coatings GmbH filed Critical BASF Coatings GmbH
Priority to DE4328011A priority Critical patent/DE4328011C2/en
Publication of DE4328011A1 publication Critical patent/DE4328011A1/en
Application granted granted Critical
Publication of DE4328011C2 publication Critical patent/DE4328011C2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/0826—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets
    • B05C1/0834—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets the coating roller co-operating with other rollers, e.g. dosing, transfer rollers
    • 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
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/02—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to separate articles
    • B05C1/025—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to separate articles to flat rectangular articles, e.g. flat sheets
    • 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
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/0826—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets
    • B05C1/083—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets being passed between the coating roller and one or more backing rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F7/00—Rotary lithographic machines
    • B41F7/16—Rotary lithographic machines for printing on non-deformable material, e.g. sheet metal

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Coating Apparatus (AREA)

Description

Die Erfindung betrifft eine Vorrichtung zum Auftragen mehrerer Lackschichten auf Blechtafeln, mit mehreren, angetriebenen, der Anzahl der aufzutragenden Lack­ schichten entsprechenden, aufeinander folgenden Auf­ tragswalzen und diesen zugeordneten Dosiereinrichtungen für die aufzutragenden Lacke.The invention relates to a device for application several layers of paint on metal sheets, with several, driven, the number of paint to be applied layer corresponding successive layers support rollers and metering devices assigned to them for the paints to be applied.

Die Beschichtung von Blechtafeln aus Weißblech, chroma­ tisiertem Stahlblech oder Aluminium mit Lack für Me­ tallverpackungen, wie Konservendosen, erfolgt bevorzugt durch Walzenauftrag. Ähnlich wie beim Rotationsdruck von Blechtafeln ist es vorteilhaft, den Mehrfachlack­ auftrag in einem Maschinendurchlauf vorzunehmen.Coating of tinplate, chroma steel sheet or aluminum with lacquer for me Tall packaging, such as cans, is preferred by roller application. Similar to rotary printing of metal sheets it is advantageous to use the multiple varnish order in one machine run.

In der deutschen Offenlegungsschrift DE-OS 22 37 567 ist eine Mehrfarben-Rotationsblechtafeldruckmaschine beschrie­ ben, bei der die den einzelnen Farben zugeordneten Übertragungszylinder um einen gemeinsamen Druckzylinder angeordnet sind. Die zu beschichtenden Blechtafeln müs­ sen daher in starker Krümmung um diesen Druckzylinder geführt werden. Dabei können bleibende Deformationen der Blechtafeln entstehen.In German Offenlegungsschrift DE-OS 22 37 567 there is one Multi-color rotary sheet printing machine described ben, where the assigned to the individual colors Transfer cylinder around a common printing cylinder are arranged. The metal sheets to be coated must sen in a strong curve around this pressure cylinder be performed. Permanent deformations can occur of the metal sheets are created.

Dementsprechend bestand die zu lösende Aufgabe darin, eine Vorrichtung zum Auftragen mehrerer Lackschichten auf Blechtafeln zu entwickeln, mit der der Schichten­ auftrag in einem Maschinendurchlauf ohne Beeinträchti­ gung der Blechtafeln möglich ist, wobei eine einwand­ freie und vollständige Lackübertragung gewährleistet sein soll.Accordingly, the task to be solved was a device for applying several layers of paint to develop on metal sheets with that of the layers order in one machine run without interference supply of the metal sheets is possible, a flawless Free and complete paint transfer guaranteed should be.

Die die Aufgabe lösende Vorrichtung ist nach der ein­ gangs geschilderten Art aufgebaut, wobei erfindungsge­ mäß jeder Auftragswalze eine angetriebene Stützwalze für die Blechtafeln zugeordnet ist und die dadurch ge­ bildeten Walzenspalte die Transportebene der Blechta­ feln bilden und die auf die erste Walze folgenden Auf­ tragswalzen mit geringerer Umfangsgeschwindigkeit lau­ fen als die zu beschichtenden Blechtafeln.The device that solves the problem is according to the one gangs described type built, wherein fiction a driven back-up roller according to each application roller is assigned for the metal sheets and thereby ge nips formed the transport level of the Blechta form and the following the first roller  carrier rollers with lower peripheral speed lukewarm fen than the metal sheets to be coated.

Weitere Einzelheiten und Vorteile der Vorrichtung nach der Erfindung sind in der nachfolgenden Beschreibung eines in der Zeichnung schematisch dargestellten Aus­ führungsbeispiels enthalten.Further details and advantages of the device according to of the invention are in the description below one shown schematically in the drawing leadership example included.

In der Zeichnung ist die gesamte Vorrichtung für den Auftrag zweier Lackschichten in einer Seitenansicht ge­ zeigt. Sie besteht im wesentlichen aus aufeinanderfol­ genden Auftragswalzen 1, 1', deren Anzahl den aufzutra­ genden Lackschichten L1, L2 entspricht, und diesen zu­ geordneten Stützwalzen 2, 2' für die zu beschichtenden Blechtafeln 3 sowie aus den Auftragswalzen beigestell­ ten Dosiereinrichtungen 4, 4' zum Übertragen des Lackes aus einem Lackvorrat auf die Walzen 1, 1'. Für weitere Lackschichten werden entsprechend weitere Walzenpaare vorgesehen.In the drawing, the entire device for the application of two layers of paint is shown in a side view ge. It consists essentially of successive applicator rollers 1 , 1 ', the number of which corresponds to the lacquer layers L1, L2 to be applied, and these to orderly supporting rollers 2 , 2 ' for the metal sheets 3 to be coated, and metering devices 4 , 4 'provided by the applicator rollers. to transfer the paint from a paint supply to the rollers 1 , 1 '. Corresponding pairs of rollers are provided for further layers of lacquer.

Die zwischen den Auftragswalzen 1, 1' und den Stützwal­ zen 2, 2' gebildeten Walzenspalte stellen die Trans­ portebene der Blechtafeln 3 dar, die auf Transportrol­ len 5 durch die Walzenanordnung laufen, welche von dem Getriebe der Stützwalzen angetrieben werden.The nips formed between the application rollers 1 , 1 'and the support rollers 2 , 2 ' represent the trans port plane of the metal sheets 3 , which run on transport rollers 5 through the roller arrangement, which are driven by the gear of the support rollers.

Dabei sorgen quer zur Transportbahn angeordnete Magnet­ rollen 6 für eine ausgerichtete Übergabe der Blechta­ feln 3 von einem Walzenpaar 1, 2 zum nächsten 1', 2'. Ferner unterstützen Magnete 12 in der Stützwalze 2' den Vorschub der Blechtafeln.Here, arranged transversely to the transport track magnetic rollers 6 for an aligned transfer of Blechta plates 3 from a pair of rollers 1 , 2 to the next 1 ', 2 '. Furthermore, magnets 12 support the feed of the metal sheets in the support roller 2 '.

Die auf die erste Auftragswalze 1 folgende Walze 1' bzw. folgenden Walzen laufen mit einer gegenüber den zu beschichtenden Blechtafeln 3 um etwa 7% bis 10% geringeren Umfangsgeschwindigkeit, damit ein Abziehen von Teilen der bereits aufgetragenen ersten Lackschicht vermieden wird. Die Verminderung der Geschwindigkeit kann durch einen kleineren Walzendurchmesser oder mit einer kleineren Drehzahl erreicht werden. Letztere Ver­ sion hat den Nachteil, daß anstelle eines gemeinsamen Antriebs für alle Walzen ein separater Antrieb vorgese­ hen werden muß. Im vorliegenden Ausführungsbeispiel werden alle Walzen gemeinsam über ein Übersetzungsge­ triebe von einem zentralen Motor angetrieben (in der Zeichnung nicht dargestellt).The following on the first applicator roller 1, roller 1 'and the following rollers running at a opposite to be coated metal sheets 3 to about 7% to 10% lower peripheral speed, so that peeling is prevented by parts of the previously applied first ink layer. The reduction in speed can be achieved by a smaller roller diameter or at a lower speed. The latter version has the disadvantage that, instead of a common drive for all rollers, a separate drive must be provided. In the present embodiment, all the rollers are driven jointly via a gearbox by a central motor (not shown in the drawing).

Üblicherweise sind die Auftragswalzen mit einem gummi­ elastischen Belag 7 ausgestattet. Es ist vorteilhaft, für die erste Auftragswalze 1 und die nachfolgenden Walzen 1' unterschiedliche Belagsmaterialien mit unter­ schiedlicher Härte vorzusehen, beispielsweise Polyure­ than mit 45 Shore-Härte für die erste Walze und Butyl mit 60 Shore-Härte für die weiteren Walzen. Hierdurch wird verhindert, daß von der zweiten und gegebenenfalls weiteren Auftragswalze der Lackfilm unvollständig übertragen wird und eine Rückführung zur Dosiereinrich­ tung erfolgt.The application rollers are usually equipped with a rubber-elastic covering 7 . It is advantageous to provide different covering materials with different hardness for the first application roller 1 and the subsequent rollers 1 ', for example polyurethane with 45 Shore hardness for the first roller and butyl with 60 Shore hardness for the other rollers. This prevents the coating film from being incompletely transferred from the second and possibly further application roller and from being returned to the metering device.

Es hat sich als zweckmäßig erwiesen, zwischen den Auf­ tragswalzen 1, 1' jeweils eine über die gesamte Breite der Blechtafeln 3 sich erstreckende und auf diese ge­ richtete Düse 8 anzuordnen, die an ein Gebläse 9 ange­ schlossen ist. Die Blasluft bewirkt ein leichtes An­ trocknen der gerade aufgetragenen Lackschicht, wodurch eine störungsfreie Lackübertragung und die Zwischenhaf­ tung der Lackschichten begünstigt werden.It has proven to be useful to arrange between the support rollers 1 , 1 'each across the entire width of the metal sheets 3 and on this ge directed nozzle 8 , which is connected to a fan 9 . The blown air causes the paint layer just applied to dry slightly, which promotes trouble-free paint transfer and the intermediate adhesion of the paint layers.

Zum Auffangen des zwischen den aufeinanderfolgenden Blechtafeln auf die Stützwalzen 2, 2' laufenden Lackes ist eine Auffangwanne 10 mit einer gegen die Walzen­ oberfläche gestellten Rakel 11 vorgesehen.To collect the paint running between the successive metal sheets on the support rollers 2 , 2 ', a collecting trough 10 is provided with a squeegee 11 placed against the rollers.

Die Dosiereinrichtungen 4, 4' für die Übertragung des Lackes auf die Auftragswalzen sind bekanntes, im Fach­ handel zur Verfügung stehendes Zubehör, so daß auf deren Beschreibung verzichtet werden kann.The metering devices 4 , 4 'for the transfer of the paint to the application rollers are known, available in the trade trade accessories, so that their description can be dispensed with.

Die vorstehend beschriebene Mehrschichtlackierung er­ folgt in einem Maschinendurchlauf bei nur einem Trock­ nungsvorgang.The multilayer coating described above he follows in one machine run with only one drying process.

Claims (4)

1. Vorrichtung zum Auftragen mehrerer Lackschichten auf Blechtafeln, mit mehreren, angetriebenen, der Anzahl der aufzutragenden Lackschichten (L1, L2) entsprechenden, aufeinander folgenden Auftragswal­ zen (1, 1') und diesen zugeordneten Dosiereinrich­ tungen (4, 4') für die aufzutragenden Lacke, da­ durch gekennzeichnet, daß
jeder Auftragswalze (1, 1') eine angetriebene Stützwalze (2, 2') für die Blechtafeln (3) zugeordnet ist und
die dadurch ge­ bildeten Walzenspalte die Transportebene der Blech­ tafeln bilden und
die auf die erste Walze (1) fol­ genden Auftragswalzen (1') mit geringerer Umfangs­ geschwindigkeit laufen als die zu beschichtenden Blechtafeln.1. Apparatus for applying several layers of paint on metal sheets, with a plurality of driven, consecutive applicator rollers ( 1 , 1 ') corresponding to the number of layers of paint (L1, L2) to be applied and metering devices ( 4 , 4 ') associated therewith for the paints to be applied, as characterized in that
each application roller ( 1 , 1 ') is assigned a driven back-up roller ( 2 , 2 ') for the metal sheets ( 3 ) and
the resulting nips form the transport plane of the metal sheets and
the application rollers ( 1 ') which follow the first roller ( 1 ) follow a lower circumferential speed than the metal sheets to be coated. 2. Vorrichtung nach Anspruch 1, dadurch gekennzeich­ net, daß die auf die erste Auftragswalze (1) fol­ genden Walzen (1') einen gegenüber der ersten Walze um 7 bis 10% geringeren Durchmesser haben.2. Device according to claim 1, characterized in that the first applicator roller (1) fol lowing rolls have (1 ') a relative to the first roller about 7 to 10% smaller in diameter. 3. Vorrichtung nach Anspruch 1 und 2, dadurch gekenn­ zeichnet, daß die Auftragswalzen (1, 1') mit einem gummielastischen Belag (7) versehen sind und die auf die erste Auftragswalze (1) folgenden Walzen (1') sich von dieser im Material des gummielasti­ schen Belags (7) unterscheiden und eine höhere Härte des Belags aufweisen.3. Device according to claim 1 and 2, characterized in that the applicator rollers 'are provided with a rubber elastic covering (7) and to the first applicator roller (1) following rollers (1 (1, 1)') from the latter in the Distinguish the material of the rubber-elastic covering ( 7 ) and have a higher hardness of the covering. 4. Vorrichtung nach Anspruch 1 bis 3, dadurch gekenn­ zeichnet, daß zwischen den Auftragswalzen (1, 1') jeweils eine über die gesamte Breite der Blechta­ feln (3) sich erstreckende, an eine Druckluftquelle (9) angeschlossene Düse (8) zum Antrocknen der auf­ getragenen Lackschicht mittels Blasluft angeordnet ist.4. Apparatus according to claim 1 to 3, characterized in that between the application rollers ( 1 , 1 ') in each case one over the entire width of the Blechta panels ( 3 ) extending to a compressed air source ( 9 ) connected nozzle ( 8 ) for Drying of the applied lacquer layer is arranged by means of blowing air.
DE4328011A 1992-09-02 1993-08-20 Device for multi-layer painting of metal sheets Expired - Fee Related DE4328011C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE4328011A DE4328011C2 (en) 1992-09-02 1993-08-20 Device for multi-layer painting of metal sheets

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4229243 1992-09-02
DE4328011A DE4328011C2 (en) 1992-09-02 1993-08-20 Device for multi-layer painting of metal sheets

Publications (2)

Publication Number Publication Date
DE4328011A1 DE4328011A1 (en) 1994-03-03
DE4328011C2 true DE4328011C2 (en) 2000-08-24

Family

ID=6467024

Family Applications (1)

Application Number Title Priority Date Filing Date
DE4328011A Expired - Fee Related DE4328011C2 (en) 1992-09-02 1993-08-20 Device for multi-layer painting of metal sheets

Country Status (1)

Country Link
DE (1) DE4328011C2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4438246C1 (en) * 1994-10-26 1995-12-07 Metronic Geraetebau Printing device for printing on compact discs
ITBO20080161A1 (en) * 2008-03-13 2009-09-14 Sorbini Srl COMBINED MACHINE, PARTICULARLY FOR THE PAINTING OF GLASS SLABS, CRYSTAL OR OTHER FLAT SURFACES IN GENERAL.
CN103861781B (en) * 2014-03-25 2016-08-03 常州市金铃摩擦材料有限公司 The coating method of a kind of friction sheets and glue application device
WO2023057796A1 (en) * 2021-10-07 2023-04-13 Arcelormittal Process and apparatus for manufacturing a steel strip for electrical applications
SE546139C2 (en) * 2022-10-28 2024-06-04 Ikea Supply Ag An arrangement and a method for applying paint on an article

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2237567A1 (en) * 1972-07-31 1974-02-14 Mailaender Fa J G MULTICOLOR ROTARY SHEET METAL PRINTING MACHINE

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2237567A1 (en) * 1972-07-31 1974-02-14 Mailaender Fa J G MULTICOLOR ROTARY SHEET METAL PRINTING MACHINE

Also Published As

Publication number Publication date
DE4328011A1 (en) 1994-03-03

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Legal Events

Date Code Title Description
8127 New person/name/address of the applicant

Owner name: BASF COATINGS AG, 48165 MUENSTER, DE

8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee