EP1244525A2 - Device for irradiating a work piece with ultraviolet radiation - Google Patents
Device for irradiating a work piece with ultraviolet radiationInfo
- Publication number
- EP1244525A2 EP1244525A2 EP00985227A EP00985227A EP1244525A2 EP 1244525 A2 EP1244525 A2 EP 1244525A2 EP 00985227 A EP00985227 A EP 00985227A EP 00985227 A EP00985227 A EP 00985227A EP 1244525 A2 EP1244525 A2 EP 1244525A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- workpiece
- radiation
- carrier
- transport device
- plant
- 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
Links
Classifications
-
- 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
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
- B05D3/061—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
- B05D3/065—After-treatment
- B05D3/067—Curing or cross-linking the coating
Definitions
- the invention relates to a system for irradiating a workpiece with ultraviolet radiation with at least one UV radiation source and at least one transport device, wherein the workpiece can be fed from a loading point of the system to a radiation zone by means of the transport device and can be transported from there to a removal point of the system.
- Such systems are used, for example, in the manufacture of interior fittings for motor vehicles. These are usually provided with a mostly transparent lacquer or resin layer to create a shiny and hard-wearing surface.
- the lacquer layer can be applied in that the interior component to be coated, for example a molded wooden part, in particular a veneer, is positioned on a wall of a molded part in such a way that a gap is formed between the wall and the surface of the interior component to be coated, which is then formed with liquid surface coating material that cures when exposed to ultraviolet radiation. The curing then takes place in such a way that the interior component is placed in a system for irradiation with ultraviolet radiation.
- the workpiece in the form of the interior component is then conveyed to an irradiation zone, ie the radiation field of a UV radiation source, by means of a transport device. led where it is irradiated with the ultraviolet radiation.
- the workpiece is then transported to an extraction point of the radiation system, where it can be removed from the system.
- An endless conveyor belt is used as the transport device for the coating system, which enables the workpiece to be transported in a straight line past one or more UV radiation sources.
- Such an embodiment has the advantage that a large number of workpieces to be irradiated can be arranged one behind the other on the conveyor belt and guided past the radiation sources, so that mass production can be achieved.
- a disadvantage of such a construction is that several people are usually required to operate such a system.
- the object of the present invention is to develop a system of the type mentioned in the introduction in such a way that it enables simplified operation.
- This object is achieved according to the invention in a system of the generic type in that the system has a common loading and unloading point and in that the workpiece can be moved back and forth between the common loading and unloading point and the radiation zone.
- Such an embodiment has the advantage that the workpiece can be fed from the irradiation zone from the same side of the system and after following irradiation of the system can be removed. The loading and unloading of the workpiece can thus be carried out by the same operator.
- the operator can thus not only be used to load the system and to remove the workpieces, but also to check the work result and to adjust the coating system.
- the embodiment of the invention also has the advantage that the system can be made very compact as a single workstation. In the case of mass production, several such individual work stations can be used, so that even if one work station fails, the entire production does not come to a standstill, but other work pieces can be irradiated without interruption at other work stations.
- the system comprises at least one carrier for receiving a workpiece, which can be positioned on the transport device.
- the use of the carrier makes it possible to align the workpiece in a defined position and to feed it to the radiation zone.
- the workpiece can be clamped to the carrier.
- the carrier can be detachably connected to the transport device.
- the carrier can be screwed or clamped to the transport device.
- the system comprises at least two carriers which can alternately be moved back and forth between the loading and unloading point and the radiation zone. This makes it possible to arrange a first workpiece on a first carrier and then to feed it to the radiation zone. During the irradiation of this first workpiece, a second workpiece can be positioned on the second carrier and then also fed to the irradiation zone. The first workpiece can then be removed from the radiation zone and replaced by another workpiece.
- the transport device comprises at least one transport carriage which is held displaceably.
- the transport trolley can, for example, be designed in the manner of a drawer which is slidably held in a guide. It is advantageous here if the trolley can be moved between the loading and unloading point on the one hand and the radiation zone on the other. It is particularly favorable if several carriers are held on the transport carriage. This makes it possible to move several carriers simultaneously with the trolley into a loading and unloading position, so that a workpiece can be arranged on the carriers. The trolley is then moved into the radiation zone, in which all the carriers arranged on the trolley with the workpieces attached are exposed to the ultraviolet radiation. After the irradiation has taken place, the trolley can then be moved back to its original position in order to remove the irradiated workpieces.
- the transport device comprises a rotatably held bogie, for example a turntable.
- Workpieces to be irradiated can be positioned on the bogie and then transported by turning the bogie into the irradiation zone and back to the original position after irradiation.
- a plurality of supports are held on the bogie, which can preferably be supplied to the radiation field of a plurality of UV radiation sources in succession by rotating the bogie.
- This enables the coating system to be fed and removed continuously.
- three UV radiation sources can be arranged on a common circumference, two radiation sources being arranged diametrically opposed to one another and the third radiation tion source is positioned at an angular distance of 90 ° between the two other radiation sources.
- the common loading and unloading point of the system can then be arranged diametrically opposite the third radiation source. This makes it possible to successively transport a workpiece to the individual radiation sources and then back to its original position by rotating the bogie by 90 °.
- the system comprises a cover. It can advantageously be provided that the cover has an opening through which the workpiece can be fed to the radiation zone and removed from the system.
- the opening can be provided on the side of the system, for example, so that the system can be fully operated from this one side.
- a particularly simple operability of the coating system can be achieved in that the workpieces can be fixed on the carrier outside the cover and after the irradiation can be removed from the carrier and can be moved through the opening with the carrier. This enables the operating personnel to optimally attach the workpieces to the carrier without being hindered by the cover of the system.
- the cover covers the bogie and the supports are slidably held on the bogie and slidable through the opening.
- the bogie then has to be positioned in such a way that a carrier is aligned with the opening of the cover and can thus be moved through it.
- the at least one carrier for coating the workpiece and for curing the coating material by means of UV radiation comprises a molded part with a wall on which the workpiece, for example the interior component, is formed in the area of a surface to be coated, forming a Gap space can be positioned, the gap space can then be filled with liquid surface coating material that can be hardened by means of UN radiation.
- Figure 1 is a schematic plan view of a first embodiment of an irradiation system
- Figure 2 is a side view of the radiation system shown in Figure 1;
- Figure 3 is a schematic plan view of a second embodiment of an irradiation system
- Figure 4 is a side view of the radiation system shown in Figure 3;
- Figure 5 is a schematic plan view of a third
- Figure 6 is a side view of the radiation system shown in Figure 5.
- FIG. 1 shows a system, generally designated by reference number 10, for irradiating a workpiece, in particular an interior fitting for motor vehicles, with ultraviolet radiation.
- the system 10 comprises a machine frame 12 with a worktop 14 and with support legs 16.
- the two trolleys 18, 20 are covered by a cover 26, with the exception of a single one Access opening 28 completely covers the trolley and workpiece carrier.
- two radiation lamps 30, 32 are held parallel to one another and are each surrounded on their underside facing away from the worktop 14 by a reflector 34, so that they each emit ultraviolet radiation directed upwards in the direction of the worktop 14.
- Both the worktop 14 and the transport trolleys 18 and 20 each had a breakthrough at the level of the radiation lamps 30, 32, so that the ultraviolet radiation can strike the workpiece carriers 22, 24 from below, provided the transport trolleys 18 and 20 have theirs in FIG 1 have assumed the inserted position shown in dashed lines.
- the radiation lamps 30 and 32 thus define with their radiation fields a common radiation zone to which the workpiece carriers 22 and 24 can be fed by moving the transport carriages 18 and 20.
- the trolleys 18 and 20 can be pulled out of the cover 26 through the access opening 28 to the outside. This is indicated by dash-dotted lines in FIG. 1.
- the trolleys 18, 20 can be pulled out so far that both workpiece carriers 22 and 24 are accessible to a processor at the same time, so that he can attach a workpiece to be irradiated to the workpiece carriers 22 and 24, respectively.
- the trolleys 18 and 20 can be inserted through the access opening 28 into the cover 26 so far that the Workpiece carriers 22 and 24 reach the respective radiation field of the radiation lamps 30, 32.
- the transport carriages 18 and 20 are then pulled out, so that the irradiated workpieces can be removed from the workpiece carriers 22, 24.
- the two transport carriages 18 and 20 can be loaded alternately, so that the other transport carriage can be loaded or unloaded with workpieces during the irradiation of the workpieces arranged on one transport carriage.
- FIGS. 3 and 4 show a second embodiment of an installation according to the invention for irradiating workpieces with ultraviolet radiation. Like the third embodiment outlined in FIGS. 5 and 6, this is configured similarly to the system according to FIGS. 1 and 2. The same reference numerals are therefore used for identical or functionally identical components as in FIGS. 1 and 2.
- the coating system 40 shown in FIGS. 3 and 4 differs from the system 10 explained above essentially in that two transport carriages 42 and 44 are provided, which are rotatable in succession 46 on the worktop 14 about a vertical turning axis 48 held turntable 50 are arranged. On each transport carriage 43, 44, two workpiece carriers 52, 54, which are aligned perpendicular to each other, are arranged. By rotating the turntable 50 can one of the transport carriages 42, 44 are arranged in alignment with the access opening 28 of the cover 26, so that the respective transport carriage 42 or 44 can then be pulled outwards in order to provide access to the respective workpiece carriers 51 and 54. In this position, a workpiece to be irradiated can be attached to the workpiece carriers 52 and 54.
- the respective transport carriage 42 or 44 can then be moved through the access opening 22 into the interior of the cover 26 and the turntable 50 can then be rotated through 180 °.
- the workpiece carriers 52 and 54 are each aligned with a radiation lamp 30, 32 positioned on the underside of the worktop 14, again in turn both on the trolleys 42, 44 and on the worktop 14 and additionally
- a breakthrough is provided on the turntable 50 so that the ultraviolet radiation emerging upwards from the irradiation lamps 30, 32 can strike the workpiece carriers 52, 54 and the workpieces held thereon without hindrance.
- the system 40 shown in FIGS. 3 and 4 in each case enables two workpieces to be irradiated to be fitted simultaneously, while two further workpieces can be irradiated with ultraviolet radiation at the same time.
- FIGS. 5 and 6 Another system for irradiating workpieces with ultraviolet radiation is shown in FIGS. 5 and 6. With this in the drawing with the loading Griffs Lake 60 occupied system also uses a turntable 50. In contrast to the system explained above, a total of 4 transport carriages 61 to 64 are held on the turntable 60, each displaced by 90 ° relative to one another. The trolleys 61 to 64 each carry a workpiece carrier 65, 66, 67 and 68 and can each be pulled out of the cover 26 through the access opening 28 of the cover 26 to such an extent that the respective workpiece carrier is accessible to an operator for fastening a workpiece.
- a total of three radiation lamps 71, 72, 73 are provided in the system 60, the radiation lamps 71 and 73 being arranged diametrically opposite one another, while the radiation lamp 72 is diametrically opposite the access opening 28 between the radiation lamps 71 and 73, each at an angular distance is positioned from 90 ° to these.
- the worktop 14, the turntable 50 and the trolleys 61 to 64 each have an opening so that the ultraviolet radiation emitted by the irradiation lamps 71, 72 and 73 can strike the respective workpiece carriers unhindered.
- FIGS. 5 and 6 makes it possible, while a workpiece to be irradiated is being fastened to one of the workpiece carriers 65 to 68, simultaneously three to the remaining workpiece carriers irradiate attached workpieces with ultraviolet radiation.
- the workpiece carriers can be designed as a molded part for coating an interior fitting for motor vehicles.
- the workpiece carriers can each have a wall on which the interior fitting to be coated can be positioned in the area of its surface to be coated, with the formation of a gap.
- a liquid surface coating material can be poured into the gap space, the latter, for example, consisting of a polyester material to which additional UN radiation-sensitive sensitizers are added, so that the polyester material hardens when the sensitizers are present ultraviolet radiation are applied.
- a clamping device can also be provided for fastening the interior fittings to the respective molded part, so that the interior fittings can be clamped with the molded part and the liquid surface coating material under an overpressure of, for example, 0.3 to about 3.5, preferably 0.5 to 0, 2 bar can be filled.
- the system according to the invention can be designed as a single workstation, the operator who loads the radiation system with workpieces can then remove blasted workpieces from the system and thus assess the irradiation result. If necessary, this operator can change the radiation parameters, for example the radiation duration or the intensity of the ultraviolet radiation.
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19961991A DE19961991A1 (en) | 1999-12-22 | 1999-12-22 | System for irradiating a workpiece with ultraviolet radiation |
DE19961991 | 1999-12-22 | ||
PCT/EP2000/013085 WO2001045863A2 (en) | 1999-12-22 | 2000-12-21 | Device for irradiating a work piece with ultraviolet radiation |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1244525A2 true EP1244525A2 (en) | 2002-10-02 |
EP1244525B1 EP1244525B1 (en) | 2003-08-20 |
Family
ID=7933796
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00985227A Expired - Lifetime EP1244525B1 (en) | 1999-12-22 | 2000-12-21 | Device for irradiating a work piece with ultraviolet radiation |
Country Status (7)
Country | Link |
---|---|
US (1) | US6756598B2 (en) |
EP (1) | EP1244525B1 (en) |
AU (1) | AU2170601A (en) |
CZ (1) | CZ20022167A3 (en) |
DE (2) | DE19961991A1 (en) |
RO (1) | RO119772B1 (en) |
WO (1) | WO2001045863A2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115720523A (en) | 2020-06-24 | 2023-02-28 | 上海延锋金桥汽车饰件系统有限公司 | Vehicle interior component |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2299052A (en) * | 1941-01-24 | 1942-10-13 | Glenwood Range Company | Attachment for slidable drawers in ovens of stoves or ranges |
US4839522A (en) * | 1987-07-29 | 1989-06-13 | American Screen Printing Company | Reflective method and apparatus for curing ink |
JP2598305B2 (en) | 1988-06-06 | 1997-04-09 | 日東電工株式会社 | Semiconductor wafer processing system |
DE3935992C2 (en) | 1989-10-28 | 1993-10-14 | Ppg Glastechnik Gmbh | Device for connecting two glass sheets to form an insulating glass pane glued to the edge |
US5240746A (en) * | 1991-02-25 | 1993-08-31 | Delco Electronics Corporation | System for performing related operations on workpieces |
NL9201065A (en) * | 1992-06-16 | 1994-01-17 | Od & Me Bv | Device for processing disc-shaped record carriers. |
DE4318735A1 (en) * | 1993-06-05 | 1994-12-08 | Kammann Maschf Werner | UV radiator for the irradiation of printing inks on objects and method for drying objects provided with printing ink |
US5534679A (en) * | 1994-05-20 | 1996-07-09 | Quadlux, Inc. | Apparatus for automated food handling |
DE19606683B4 (en) * | 1996-02-22 | 2004-12-02 | CCS Technology, Inc., Wilmington | UV lamp for curing a layer applied to at least one optical waveguide |
DE29813977U1 (en) * | 1998-08-05 | 1998-11-26 | Behr Automotive Gmbh | Device for the surface coating of an interior fitting for vehicles and interior fitting manufactured by means of the device |
DE29816588U1 (en) | 1998-09-16 | 1998-12-24 | Leybold Systems Gmbh | Device for drying substrates coated with lacquer, for example for protective lacquered compact discs within a production line |
-
1999
- 1999-12-22 DE DE19961991A patent/DE19961991A1/en not_active Withdrawn
-
2000
- 2000-12-21 AU AU21706/01A patent/AU2170601A/en not_active Abandoned
- 2000-12-21 WO PCT/EP2000/013085 patent/WO2001045863A2/en not_active Application Discontinuation
- 2000-12-21 CZ CZ20022167A patent/CZ20022167A3/en unknown
- 2000-12-21 RO ROA200200762A patent/RO119772B1/en unknown
- 2000-12-21 DE DE50003400T patent/DE50003400D1/en not_active Expired - Lifetime
- 2000-12-21 EP EP00985227A patent/EP1244525B1/en not_active Expired - Lifetime
-
2002
- 2002-06-19 US US10/177,622 patent/US6756598B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO0145863A2 * |
Also Published As
Publication number | Publication date |
---|---|
US20030041974A1 (en) | 2003-03-06 |
DE50003400D1 (en) | 2003-09-25 |
RO119772B1 (en) | 2005-03-30 |
EP1244525B1 (en) | 2003-08-20 |
DE19961991A1 (en) | 2001-07-05 |
WO2001045863A2 (en) | 2001-06-28 |
CZ20022167A3 (en) | 2003-06-18 |
WO2001045863A3 (en) | 2002-02-14 |
US6756598B2 (en) | 2004-06-29 |
AU2170601A (en) | 2001-07-03 |
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