EP1729889B1 - Dispositif pour peindre et secher un materiau sans fin - Google Patents

Dispositif pour peindre et secher un materiau sans fin Download PDF

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Publication number
EP1729889B1
EP1729889B1 EP05714171A EP05714171A EP1729889B1 EP 1729889 B1 EP1729889 B1 EP 1729889B1 EP 05714171 A EP05714171 A EP 05714171A EP 05714171 A EP05714171 A EP 05714171A EP 1729889 B1 EP1729889 B1 EP 1729889B1
Authority
EP
European Patent Office
Prior art keywords
return
cooling device
continuous material
wire
drying
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.)
Not-in-force
Application number
EP05714171A
Other languages
German (de)
English (en)
Other versions
EP1729889A1 (fr
Inventor
Gerald Pascher
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.)
"Kaizen" Consulting GmbH
Original Assignee
"Kaizen" Consulting 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 "Kaizen" Consulting GmbH filed Critical "Kaizen" Consulting GmbH
Publication of EP1729889A1 publication Critical patent/EP1729889A1/fr
Application granted granted Critical
Publication of EP1729889B1 publication Critical patent/EP1729889B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
    • B05C9/08—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation
    • B05C9/14—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation the auxiliary operation involving heating or cooling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/06—Insulating conductors or cables
    • H01B13/16—Insulating conductors or cables by passing through or dipping in a liquid bath; by spraying

Definitions

  • the invention relates to a device for painting and drying continuous material, in particular wire, wherein a paint applicator for applying a paint layer to the continuous material and a drying device for drying the paint layer is provided on the continuous material, and a flow cooling device between the drying device and a return Deflection device for returning the continuous material to the paint applicator and a return cooling device between the return deflection device and a feed deflection device for feeding the continuous material to the paint applicator are arranged.
  • insulated wires with very small diameters, preferably in a range of 0.05 to 0.5 mm are used.
  • special wire enamels are used with a solids content of preferably about 30% -40%.
  • Paint-coated wires are composed of a metallic core and a thin flexible coating shell.
  • the lacquer layer must have both sufficient mechanical and electrical properties.
  • the wire and especially the paint layer is mechanically stressed when winding coils. Despite this stress, the lacquer layer must not lose its electrical insulation properties. Therefore, care must be taken when applying a faultless lacquer coating when painting wires.
  • the wire to be coated first passes through a paint bed in the paint applicator, which is supplied with a constant paint stream.
  • the wire is exposed to an excess of paint and it sets an undefined paint layer thickness.
  • the thickness of this lacquer layer depends on various factors, such as the withdrawal speed and the surface tension of the paint.
  • the excess lacquer is then stripped off to achieve the desired wet lacquer thickness.
  • metal nozzles are often used with carbide, sapphire or diamond inserts.
  • the excess paint flows out of the nozzle on the inlet side and back into the storage tank. At the rear end of the wiper opening, the paint is pulled out of the nozzle by the moving wire.
  • the painted wire passes through a drying device, in which the painted wire is reheated and the solvents contained in the paint are evaporated. After this process, the solid particles of the paint form a solid insulating layer around the wire.
  • the wire is then cooled again and fed again to the paint applicator. This process is repeated until the wire has been coated with the required entire lacquer layer. Depending on the machine and the product requirements, this process step must be completed up to 30 times. After the last pass, the wire is tested and wound on a spool in a winder.
  • the cooling of the wire between the individual painting or drying runs is provided in particular so as not to damage the paint surface by the subsequent deflections by means of the deflection devices and, moreover, during the paint application in the paint applicator not to evaporate too much solvent before it enters the drying device ,
  • Combined cooling devices which are arranged adjacent to the recirculation deflection device and in which the flow cooling device and the return cooling device are arranged directly above one another, so that the wire immediately after exiting the drying device in the flow cooling device is subsequently deflected by means of a return-deflection device, and then immediately re-enters the return-cooling device, from which it exits at the level of the arranged above the inlet opening in the flow cooling device again.
  • the disadvantage here is that the wire again superficially heated after exiting the return cooling device, as a temperature compensation between the relatively hot wire core and the wire surface, ie the paint layer takes place. When entering the paint applicator this leads comparatively high surface temperature to undesired solvent evaporation.
  • the cooling capacity In order to keep the surface temperature at entry into the paint applicator thus low, therefore, the cooling capacity must be selected correspondingly high in known devices, so that the wire is cooled to the core.
  • a wire cooled down to the core is disadvantageous for the energy balance of the device, since the cold wire thus has to be reheated in the drying device.
  • the cooling efficiency of the return cooling device is lower than that of the flow cooling device, since the temperature difference between the cooling air (ambient temperature) and the continuous material is already very small.
  • Drahtlackiervoriques with a drying channel is known, to which only a flow cooling device connects.
  • the aim of the present invention is therefore to provide a device of the type mentioned, with which the above-mentioned disadvantages are prevented as possible, i. in particular a superficial heating of the continuous material before entry into the paint applicator is prevented.
  • the cooling capacity in the flow-cooling device can be specifically adapted to the process parameters, such as production speed, wire diameter, etc., so that a damage-free deflection at the return deflection device is achieved.
  • a temperature compensation between a core of the continuous material and the Surface take place. This increases the cooling efficiency of the return cooling device, since the temperature difference between the surface of the continuous material and the cooling air taken from the environment becomes larger.
  • the outlet end of the return cooling device is arranged substantially immovably adjacent to the return deflection device.
  • the continuous material can be guided over a comparatively large distance in the return cooling device and thus in turn the cooling capacity of the return cooling device to the process parameters (production speeds, wire diameter, etc.). ) can be precisely adjusted so that surface cooling of the wire occurs to the extent that evaporation of the solvent in the paint applicator is avoided.
  • the cooling air is blown counter to the direction of the endless material in the flow cooling device, it being favorable that the flow cooling device has at least one slot for passing the continuous material, which is connected to a suction fan and a pressure fan is. In this way, the cooling air can be introduced with the pressure fan counter to the direction of the endless material in the shaft and the heated cooling air are sucked by the suction fan.
  • the return cooling device has at least one shaft for passing through the endless material, which is connected to the suction fan and preferably another pressure fan.
  • the suction fan of the flow cooling device at the same time the cooling air can be sucked through the shaft of the return cooling device against the direction of the endless material, with continuous material with a relatively large diameter of about> 0.8 mm and at relatively high production speeds of From about 600 m / min and another of the return cooling device associated pressure fan can be provided.
  • the flow and return cooling devices In order to be able to paint, dry and cool two continuous materials running parallel to one another at the same time, it is advantageous if the flow and return cooling devices have two shafts running parallel to one another.
  • a device 1 for drying and painting of wires which has a paint applicator 2, a circulating air oven 3 as a drying device and a flow cooling device 4 and a return cooling device 5.
  • the wire is here in the forward direction 6 through the oven 3 for drying the previously applied by the paint applicator 2 paint layer, then cooled in the flow cooling device 4 so that when deflecting the wire by means of a return deflection device 7 with pulleys 8 fresh applied lacquer layer is not damaged.
  • the wire is returned in the return direction 9 to the paint applicator 2, wherein for deflecting the wire in the forward direction 6, a feed-deflection device 10 is provided with deflection rollers 8.
  • the wire is thus first coated with lacquer in the lacquer applicator 2, then solvent is evaporated in a circulating air oven 3 and the lacquer is polymerized.
  • the wire provided with the lacquer layer is then introduced into the flow-cooling device 4 in order to cool the surface of the wire to such an extent that the lacquer layer, which is still plastic in the warm state, is not damaged during the deflection at the deflection device 7.
  • the wire is cooled only to a temperature which is higher by approximately 50 ° C. than the maximum permissible surface temperature when it enters the paint applicator 2.
  • the exposed transport section 11 has in the embodiment shown a length of about 5 m.
  • the wire enters the return cooling device 5, which extends below the circulating air oven 3 over a substantial portion of the length of the circulating air oven 3.
  • An exit end 5 'of the return cooling device 5 is thus arranged relatively close to the applicator 2.
  • the exit end 5 'of the return cooling device 5 is arranged closer than an inlet opening 4' of the flow cooling device, wherein in known return cooling devices, the inlet openings of the flow cooling device and the outlet ends of the return cooling device are arranged substantially in alignment in a plan view.
  • the cooling performance of the return cooling device can be precisely adapted to the production conditions or process parameters, so that a surface cooling of the wire takes place to an extent in which evaporation of the solvent in the paint applicator 2 can be avoided.
  • a superficial cooling of the wire to about 70 ° C, the core temperature of the wire thus remains much higher than in known cooling devices, so that the energy balance of the entire device 1 is improved.
  • the cooling air with the aid of a radial pressure fan 12 is blown against the advance direction 6 of the wire in a shaft of the flow cooling device 4 and the heated cooling air sucked by a radial suction fan 13.
  • the return cooling device may also have in the region of the outlet end 5 'connected to the return cooling device 5 pressure fan (not shown) , Furthermore are in Fig. 4 Still see supporting rollers 15 to reliably insert the wire in the return cooling device 5.
  • the flow cooling device 4 and the return cooling device 5 each have two shafts and the deflection devices 7, 10 each have two pulleys 8, so that two wires can be painted in parallel.
  • the outlet end 5 'of the return-cooling device is arranged relatively close to the applicator 2, so that a superficial cooling of the wire can be done precisely to the extent that evaporation of the solvent in the paint applicator 2 is avoided as possible.

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  • Coating Apparatus (AREA)

Claims (8)

  1. Dispositif (1) pour peindre et sécher un matériau sans fin, en particulier un fil, un applicateur de peinture (2) destiné à appliquer une couche de peinture sur le matériau sans fin et un dispositif de séchage (3) destiné à sécher la couche de peinture sur le matériau sans fin étant prévus, et un dispositif de refroidissement en marche avant (4) étant disposé entre le dispositif de séchage (3) et un dispositif de guide de retour (7) destiné à ramener le matériau sans fin à l'applicateur de peinture (2) et un dispositif de refroidissement en marche arrière (5) étant disposé entre le dispositif de guidage de retour (7) et un dispositif de guidage d'amenée (10) destiné à amener le matériau sans fin à l'applicateur de peinture (2), caractérisé en ce qu'une extrémité de sortie (5') du dispositif de refroidissement en marche arrière (5) pour le matériau sans fin est disposée plus près de l'applicateur de peinture (2) qu'une ouverture d'entrée (4') du dispositif de refroidissement en marche avant (4) pour le matériau sans fin.
  2. Dispositif selon la revendication 1, caractérisé en ce qu'une section de transport (11) raccordée au dispositif de guidage de retour (10) au-dessous du dispositif de refroidissement en marche avant (4) est réalisée en porte-à-faux.
  3. Dispositif selon la revendication 2, caractérisé en ce que la section de transport (11) présente une longueur de 4 m à 6 m.
  4. Dispositif selon l'une quelconque des revendications 1 à 3, caractérisé en ce que l'extrémité de sortie (5') du dispositif de refroidissement en marche arrière (5) est disposée sensiblement de manière directement adjacente au dispositif de guidage de retour (10).
  5. Dispositif selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le dispositif de refroidissement en marche arrière (5) s'étend sensiblement sur toute la longueur du dispositif de séchage (3).
  6. Dispositif selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le dispositif de refroidissement en marche avant (4) comprend au moins un puits destiné au passage du matériau sans fin, qui est relié à un ventilateur extracteur (13) et un ventilateur soufflant (12).
  7. Dispositif selon la revendication 6, caractérisé en ce que le dispositif de refroidissement en marche arrière (5) comprend au moins un puits pour le passage du matériau sans fin, qui est relié au ventilateur extracteur (13) et de préférence à un autre ventilateur soufflant.
  8. Dispositif selon l'une quelconque des revendications 1 à 7, caractérisé en ce que les dispositifs de refroidissement en marche avant et arrière (4, 5) comprennent deux puits s'étendant parallèlement l'un à l'autre.
EP05714171A 2004-03-29 2005-03-11 Dispositif pour peindre et secher un materiau sans fin Not-in-force EP1729889B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0023504U AT7520U1 (de) 2004-03-29 2004-03-29 Vorrichtung zum lackieren und trocknen von endlosmaterial
PCT/AT2005/000089 WO2005092513A1 (fr) 2004-03-29 2005-03-11 Dispositif pour peindre et secher un materiau sans fin

Publications (2)

Publication Number Publication Date
EP1729889A1 EP1729889A1 (fr) 2006-12-13
EP1729889B1 true EP1729889B1 (fr) 2008-10-08

Family

ID=34140132

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05714171A Not-in-force EP1729889B1 (fr) 2004-03-29 2005-03-11 Dispositif pour peindre et secher un materiau sans fin

Country Status (5)

Country Link
EP (1) EP1729889B1 (fr)
AT (2) AT7520U1 (fr)
DE (1) DE502005005618D1 (fr)
ES (1) ES2314628T3 (fr)
WO (1) WO2005092513A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101834038B (zh) * 2010-05-22 2013-08-28 无锡锡洲电磁线有限公司 新型自粘漆包线单面涂漆装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3118830C2 (de) * 1981-05-12 1983-05-11 MAG Maschinen und Apparatebau GmbH, 8055 Graz "Anlage zur Lackdrahtherstellung im Inlineverfahren"

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101834038B (zh) * 2010-05-22 2013-08-28 无锡锡洲电磁线有限公司 新型自粘漆包线单面涂漆装置

Also Published As

Publication number Publication date
DE502005005618D1 (de) 2008-11-20
AT7520U1 (de) 2005-04-25
ATE410240T1 (de) 2008-10-15
EP1729889A1 (fr) 2006-12-13
WO2005092513A1 (fr) 2005-10-06
ES2314628T3 (es) 2009-03-16

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