EP2653814A1 - Verfahren und Vorrichtung zum Trocknen von auf hauptsächlich flachen Teilen aufgebachter Farbe - Google Patents

Verfahren und Vorrichtung zum Trocknen von auf hauptsächlich flachen Teilen aufgebachter Farbe Download PDF

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Publication number
EP2653814A1
EP2653814A1 EP13163587.2A EP13163587A EP2653814A1 EP 2653814 A1 EP2653814 A1 EP 2653814A1 EP 13163587 A EP13163587 A EP 13163587A EP 2653814 A1 EP2653814 A1 EP 2653814A1
Authority
EP
European Patent Office
Prior art keywords
reflector
lamp
dried
focus
rays
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.)
Granted
Application number
EP13163587.2A
Other languages
English (en)
French (fr)
Other versions
EP2653814B1 (de
Inventor
Stefano Benedetti
Silver Santandrea
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.)
Cefla SCARL
Original Assignee
Cefla SCARL
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 Cefla SCARL filed Critical Cefla SCARL
Publication of EP2653814A1 publication Critical patent/EP2653814A1/de
Application granted granted Critical
Publication of EP2653814B1 publication Critical patent/EP2653814B1/de
Active legal-status Critical Current
Anticipated expiration legal-status 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2202/00—Metallic substrate
    • 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

Definitions

  • the present invention refers to the technical field of apparatuses for drying paint applied on mainly flat parts through the use of UV rays.
  • the invention relates to a suitably shaped reflector which allows to concentrate UV radiations emitted by a UV lamp, so as to accelerate the drying of paint applied on said articles.
  • a tubular lamp which emits UV radiations which are reflected through a suitably shaped parabolic or elliptic reflector on the horizontal surface and vertical edges of the panel to be dried.
  • the lamp In the case of a parabola, the lamp is positioned in its focus.
  • the lamp In the case of an ellipse, the lamp is positioned in one of the two foci of the ellipse, which is sectioned in its portion directed toward the part to be dried.
  • reflectors having both shapes are already in use, in order to obtain a diffused or concentrated irradiation on the parts to be dried.
  • an apparatus for drying paint applied on the surface and vertical edges of flat parts comprising two identical reflectors having elliptical shape, positioned so that ellipse's major axis crossing both foci is perpendicular to the part to be dried, wherein the UV lamp is in the focus of the ellipse and wherein the second focus is in proximity of the lower edge of the article.
  • One of the advantages of the present invention lies in the possibility of using just one reflector which allows to suitably dry the edges, which are parallel and perpendicular to part feed direction; this allows to build simplified, less costly drying ovens.
  • the oven making use of UV lamps is in fact very expensive; moreover the use of just one lamp allows to spare energy and heat less the part to be dried.
  • 1 denotes on the whole a prior art apparatus for drying the paint applied on parts, represented in a lateral view.
  • 2a and 2b denote two UV lamps, here represented in a lateral section; 3a and 3b are the elliptic reflectors surrounding the lamps; 4 the painted part, moving in the direction shown by the arrow.
  • 5 is the conveyor, 6 the bars supporting and conveying parts 4, 7 the pinions which move bars 6 forward through chains (not shown).
  • two lamps 2a, 2b must be employed, contained in two reflectors 3a, 3b, which must be suitably tilted with respect to part 4.
  • FIG 2 a lateral view of an apparatus 11 according to the present invention is represented, which makes use of just one UV lamp 12 and of just one reflector 13.
  • the lamp 12 is in the first focus of the elliptic reflector 13.
  • Reflector 13 is perpendicular to part 14 to be dried, i.e. the major axis of the ellipse, crossing both foci, forms an angle of 90° with the major axis of part 14.
  • Reflected rays 18 are concentrated on part 14 horizontal surface, while non-reflected rays 19 hit directly the top surface of part 14, which moves according to arrow direction.
  • Conveying system 15, 16, 17 is the same as in Figure 1 .
  • Figure 4 represents the apparatus of the present invention in a frontal view, perpendicularly to feed direction.
  • Mirrors 23 are present, which are perpendicular to the axis of the lamp 12, which allow to reflect the share of rays, which would hit the wall, on lateral edges 20.
  • reflected UV rays 18 and non-reflected UV rays 19 can hit vertical lateral edges 20, parallel to feed direction, of part 14 can be appreciated.
  • Lamp 12 is in a fixed position within reflector 13, the two components are integral: the movement of reflector 13 entails the shift of lamp 12 with respect to part 14 to be dried.
  • the thickness of edge 20 of part 14 can vary in a range of some millimetres to some centimetres, and the position of focus 21 with respect to conveyor 15 must be varied consequently, suitably positioning both lamp 12 and reflector 13.
  • the positioning of lamp 12 and reflector 13 as a whole can be performed in known ways, as a motor or a jack. It is up to operator, at the beginning of operation, to adjust the apparatus according to part thickness.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating Apparatus (AREA)
EP13163587.2A 2012-04-16 2013-04-12 Verfahren und Vorrichtung zum Trocknen von auf hauptsächlich flachen Teilen aufgebachter Farbe Active EP2653814B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000203A ITBO20120203A1 (it) 2012-04-16 2012-04-16 Metodo e apparecchiatura per la essiccazione di vernici applicate su manufatti a prevalente estensione piana

Publications (2)

Publication Number Publication Date
EP2653814A1 true EP2653814A1 (de) 2013-10-23
EP2653814B1 EP2653814B1 (de) 2016-06-01

Family

ID=46051721

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13163587.2A Active EP2653814B1 (de) 2012-04-16 2013-04-12 Verfahren und Vorrichtung zum Trocknen von auf hauptsächlich flachen Teilen aufgebachter Farbe

Country Status (5)

Country Link
EP (1) EP2653814B1 (de)
CN (1) CN103372529B (de)
ES (1) ES2575926T3 (de)
IT (1) ITBO20120203A1 (de)
PL (1) PL2653814T3 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110548662B (zh) * 2019-10-15 2024-02-13 佛山市快涂美机械有限公司 一种边缘涂装砂光机

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5300331A (en) 1991-09-27 1994-04-05 Fusion Systems Corporation Method and apparatus for UV curing thick pigmented coatings
US20060266955A1 (en) * 2005-05-24 2006-11-30 Dubois Equipment Company, Inc. Apparatus for curing a coating on a three-dimensional object
DE102008061597A1 (de) * 2008-12-11 2010-06-17 Venjakob Maschinenbau Gmbh & Co. Kg UV-Bestrahlungsvorrichtung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5832362A (en) * 1997-02-13 1998-11-03 The Procter & Gamble Company Apparatus for generating parallel radiation for curing photosensitive resin
GB2336895A (en) * 1998-04-30 1999-11-03 Gew UV dryer with shaped reflector surface
JP4329632B2 (ja) * 2004-06-23 2009-09-09 ウシオ電機株式会社 紫外光照射装置
JP2009034831A (ja) * 2007-07-31 2009-02-19 Ushio Inc 光照射器及びこの光照射器を使用したプリンタ

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5300331A (en) 1991-09-27 1994-04-05 Fusion Systems Corporation Method and apparatus for UV curing thick pigmented coatings
US20060266955A1 (en) * 2005-05-24 2006-11-30 Dubois Equipment Company, Inc. Apparatus for curing a coating on a three-dimensional object
DE102008061597A1 (de) * 2008-12-11 2010-06-17 Venjakob Maschinenbau Gmbh & Co. Kg UV-Bestrahlungsvorrichtung

Also Published As

Publication number Publication date
ES2575926T3 (es) 2016-07-04
CN103372529A (zh) 2013-10-30
ITBO20120203A1 (it) 2013-10-17
CN103372529B (zh) 2016-08-03
EP2653814B1 (de) 2016-06-01
PL2653814T3 (pl) 2016-09-30

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