EP1381816B1 - Module emetteur de rayonnement et installation d'exposition a un rayonnement haute puissance - Google Patents

Module emetteur de rayonnement et installation d'exposition a un rayonnement haute puissance Download PDF

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Publication number
EP1381816B1
EP1381816B1 EP02761915A EP02761915A EP1381816B1 EP 1381816 B1 EP1381816 B1 EP 1381816B1 EP 02761915 A EP02761915 A EP 02761915A EP 02761915 A EP02761915 A EP 02761915A EP 1381816 B1 EP1381816 B1 EP 1381816B1
Authority
EP
European Patent Office
Prior art keywords
radiator module
control unit
control
switching control
emitter
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 - Lifetime
Application number
EP02761915A
Other languages
German (de)
English (en)
Other versions
EP1381816A1 (fr
Inventor
Rainer Gaus
Kai K. O. BÄR
Rajk Hamm
Rolf Wirth
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.)
Advanced Photonics Technologies AG
Original Assignee
Advanced Photonics Technologies 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
Priority claimed from DE10125888A external-priority patent/DE10125888C2/de
Application filed by Advanced Photonics Technologies AG filed Critical Advanced Photonics Technologies AG
Publication of EP1381816A1 publication Critical patent/EP1381816A1/fr
Application granted granted Critical
Publication of EP1381816B1 publication Critical patent/EP1381816B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F26B3/30—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun from infrared-emitting elements

Definitions

  • the invention relates to a radiator module according to the preamble of claim 1 and to a high-power irradiation system according to the preamble of claim 13.
  • This technology employs high power irradiation equipment which efficiently enables the provision of said near infrared (NIR) radiation with the required high power densities and has sufficient life for industrial use.
  • the irradiation systems realized by the applicant include radiator modules of the generic type, as described in the (unpublished) German patent applications 100 51 904.0 and 100 51 641.6.
  • Such radiator modules have a solid metallic reflector body with cooling channels for water cooling.
  • the reflector body usually serving as an emitter long elongated tubular halogen filament lamps are used, and He has for each emitter a suitably shaped reflector section.
  • emitter modules with only one emitter and a partially elliptical reflection surface, which are also referred to as line emitters.
  • control devices which allow the individual or group-wise control of the emitter of the irradiation system.
  • a controlled process control with evaluation of contactless temperature values detected on the workpiece is desired.
  • the required control electronics are usually housed in a control cabinet and in addition to suitable signal processing and optional control stages and the required input and display means, in particular power controller for power control of the emitter.
  • the power controllers are each connected to the individually controlled emitter via separate power supply lines.
  • the construction of a high-power irradiation system of the type in question here therefore requires the laying of a large number of supply lines from the control cabinet to the radiator modules and is correspondingly labor-intensive and error-prone.
  • the power controllers require a relatively large amount of installation space in the control cabinet, because they are provided with voluminous heat sinks due to the considerable heat development.
  • the emitter is desirable for early detection of impending failures.
  • a distance detection and monitoring between the emitters or radiator modules and the workpiece is required or at least desirable.
  • a large number of measured values are also transmitted, which are transmitted from the radiator modules via measuring lines to the control cabinet and processed there. The laying of these lines increases the cost of the plant further, involves additional error and failure risks and contributes significantly to the fact that such a system according to the prior art is not very "handy".
  • the invention is therefore an object of the invention to provide an improved radiator module of the generic type and an improved high-power irradiation system, the structure of which is possible with reduced effort and error and failure risk.
  • the irradiation system should be compact and clear and easy to configure for various machining processes.
  • radiator module having the features of claim 1 and according to a further essential aspect by a high-power irradiation system having the features of claim 13.
  • the invention includes on the one hand the essential idea of outsourcing the switching control unit or units from the central system control (the control cabinet) and their displacement to the radiator module. It further includes the idea to use the provided in the radiator modules active cooling of the reflector body at the same time for cooling the switching control elements by these are brought into thermal contact with the reflector body. In addition to saving a considerable Number of separate supply and control lines thus a significant space savings for the switching control units realized by eliminating the need for separate cooling channels.
  • the central system control can therefore be much more compact.
  • this further includes the idea of equipping the switching control unit or units of the irradiation system with additional "intelligence", ie with monitoring or control means, which are otherwise assigned to the central system control, ie arranged in the control cabinet.
  • additional "intelligence" ie with monitoring or control means, which are otherwise assigned to the central system control, ie arranged in the control cabinet.
  • Certain functions of the condition monitoring of the emitter - in particular for the purpose of a pre-detection to determine the correct replacement time - can be made more meaningful on the switching control unit itself (especially if it is mounted directly on the radiator module).
  • their implementation saves directly at the switching control unit or the radiator module, the signal transmission to the central system control and thus also the corresponding signal lines or transmission links.
  • the switching control unit comprises separate control means - in particular power controller - for separate control of several emitters and correspondingly separate outputs for supply lines leading to the individual emitters.
  • each individual emitter can be controlled separately and optionally regulated, which can easily build a differentiated NIR irradiation profile of a workpiece and the aging state of the individual emitter can be considered in the control.
  • groups of individual emitters can also be controlled together - with which the component expenditure for the control can be reduced, but on the other hand not the same flexibility as in the individual control is achieved.
  • modular prefabricated hardwirings eg circuit boards
  • circuit boards eg circuit boards
  • a wireless signal receiving unit in the switching control unit for wireless signal transmission from and to the central system control makes sense.
  • the control signals from the central control unit in particular according to the DECT or Bluetooth standard to the switching control unit or the switching control units can be transmitted without signal lines must be laid.
  • a mobile radio link according to the GSM or UMTS standard or a future standard suitable for industrial applications even though their expediency should, of course, be weighed against the use of an in-house transmission link from a cost perspective.
  • the switch control unit preferably has a bus interface according to one of the usual industry standards, which allows the connection to a control signal bus of the system control. This may in particular be a Profibus or Ethernet connection.
  • radiator modules are individually electronically marked in an expedient development of the inventive concept, so that they can be identified in an overall system at startup - or periodically during operation - and optionally supplied with individual control signals.
  • the corresponding identifier is stored in a suitable radiator module code memory and provides information, for example, about the design of the emitter, the design of the reflector, the start of operation or other characteristic variables-but in the simplest case, it can also be just an identification number .
  • a radiator module code transmitter which in particular reacts to an interrogation signal from the system controller and transmits the identifier stored in the radiator module code memory, serves for transmission to the system controller.
  • a corresponding detection stage is provided which receives and decrypts these signals and provides the data obtained to the actual system control.
  • a registration control which implements the transmission of a standby signal of the individual radiator modules when the irradiation system is put into operation, that is, to a certain extent, a "log in” of the modules during plant control.
  • This application is preferably - but not necessarily - under transmission of the radiator module code.
  • the emitters are - in itself known from the above-mentioned documents or unpublished patent applications - preferably elongated tubular high-performance halogen lamps, which are connected externally in particular via plug contacts in the reflector body.
  • the reflector body preferably has cooling channels for passing a cooling fluid, in particular cooling water, and standardized connections for connection to a corresponding cooling system.
  • the switching control unit and the optionally provided hard-wired modules are expediently screwed or plugged onto the reflector body, which is preferably flat at the rear.
  • the radiator module at least one - in particular non-contact - - sensor integrated or integrated, whose detection range is aligned with a workpiece to be heated and which serves to detect its temperature in the machining process and / or other process-related parameters. Between this sensor or the sensors and the switching control unit is preferably provided a direct Meßsignalinformation.
  • the switching control unit comprises a measuring signal processing unit, which provides an input signal for the control or a regulation of the operation of the emitter of the radiator module.
  • the corresponding identifier can be contained in the above-mentioned radiator module code, but on the other hand it can also be stored in a separate sensor code memory, particularly in the case of a subsequent supplementation of the radiator module with sensor.
  • the transmission to the plant control On the one hand, the transmission is possible together with the radiator module code via the radiator module code transmitter and, on the other hand, a separate interrogation and transmission by means of a dedicated transducer code transmitter. With this design it is always possible to provide the system control with the latest information about the sensors available in the individual radiator module (and of important parameters of the same).
  • the detection of various further process parameters may be expedient for determining the optimum power range of the emitter in the machining process. It proves to be advantageous if these parameters, for example, with respect to the process speed, the material or special material properties of the workpiece or its residence time under the radiator module, are obtained separately.
  • the acquisition of measured values is integrated into the process, which provide information about the specific application behavior of the emitter / emitter in the concrete plant in terms of their performance and their life cycle.
  • Fig. 1 shows a simplified perspective view of a radiator module 1 of an NIR irradiation system, wherein a reflector body 3 shown cut near one end and of several frame parts, which serve for holding and cooling fluid supply, only a frame part 5 is shown schematically.
  • the radiator module 1 is designed to accommodate six elongated tubular halogen filament lamps (emitters) 7.
  • the reflector body 3 is made as extruded from a solid aluminum alloy and has molded cooling water channels 9 and each associated with an emitter 7, approximately W-shaped reflector sections 11 with a polished surface.
  • the halogen lamps 7 are connected via plug contacts 13 at their ends, which are isolated by the reflector body 3, connected to pads 15 on the back of the reflector body.
  • a switching control unit 17 is further mounted, which comprises (not individually illustrated) power controller for power supply and control of the emitter 7.
  • the switching control unit 17 has a power supply terminal 19 and a control signal terminal 21 for connection to a central control unit of the irradiation facility.
  • the switching control unit 17 Via a wiring board 23 with conductor tracks 23a, the switching control unit 17 is connected to the pads 15 of the emitter 7 and supplies them with a voltage controlled by the power controller operating voltage.
  • the power switching devices within the switching control unit 17 are arranged in direct thermal contact with the solid, cooled reflector body 3, so that they are cooled over this and separate cooling means are not required. As a result, the construction volume of the shift control unit 17 can be kept relatively small.
  • the wiring boards 23 are designed so that with them - if necessary, by longitudinally predetermined parts Division lines or addition of multiple boards - a simple configuration of the emitter power supply of different irradiation arrangement is possible without disturbing cable strands.
  • FIG. 2 shows a schematic diagram of the overall structure of a production plant 100 with two NIR irradiation stations 102 and 104 for irradiating a quasi-endless workpiece 106 under the control of a control computer 110.
  • the production plant comprises, in addition to the NIR irradiation stations 102, 104, further processing stations (not separately designated).
  • the NIR irradiation stations 102, 104 each comprise two radiator modules 102A, 102B and 104A, 104B of the type shown in FIG. 1, each having a plurality of separately monitorable and controllable emitters 107 in a reflector body 103 and a switching control unit 117.
  • Each of the switching control units 117 is assigned a radio transmission and reception unit 118 operating according to the DECT standard.
  • the radio transmitting and receiving units 118 on the radiator modules realize a wireless measuring and control signal connection between the switching control units 117 and the control computer 110, which is connected to a corresponding DECT module 120.
  • the radiator module 104A is associated with a pyrometer element 122 for non-contact temperature measurement on the workpiece 106, which is connected via a Meßsignalitati with the radio transmitting and - receiving unit 118 of this radiator module.
  • the temperature measurement signals are transmitted to the control computer 110 where they are processed and taken into account for the power control of the NIR irradiation stations.
  • This data communication comprises, in particular, the transmission of the voltage and current values used for detecting the state of the emitter, the above-mentioned temperature signals and other measured values obtained in the process and all control signals required for the operation of the irradiation systems.
  • the embodiment of the invention is not limited to the examples described above, but also in a variety of modifications are possible, which are within the scope of technical action.
  • the storage and transmission devices mentioned above for identifiers of the radiator modules or their (intelligent) sensors or for registration or readiness message of the radiator modules in the plant control are readily integrable.
  • the corresponding data transmissions can be realized with the alternative means shown in the figures and described above or mentioned in the introduction to the description within the scope of the knowledge of the average person skilled in the art.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
  • Control Of Resistance Heating (AREA)
  • Laser Beam Processing (AREA)

Claims (19)

  1. Module radiateur (1; 102A, 102B, 104A, 104B) d'une installation de rayonnement à haute performance (102, 104) pour processus de traitement thermique, présentant au moins un émetteur (7 ; 107) de rayonnements électromagnétiques, présentant des parties efficaces essentielles dans la zone de l'infrarouge proche, et un corps réflecteur refroidi (3 ; 103) pour concentrer le rayonnement électromagnétique sur une pièce à travailler (106),
    caractérisé en ce que
    au moins une unité de commande de commutation (27 ; 117) est montée sur le module radiateur, en particulier une unité de réglage de puissance, pour piloter l'émetteur ou les émetteurs en contact thermique avec le corps réflecteur.
  2. Module radiateur selon la revendication 1,
    caractérisé en ce que
    l'unité de commande de commutation (17 ; 107) présente des moyens de commande, en particulier de réglage de puissance, et des sorties séparées pour la commande séparée de plusieurs émetteurs (7 ; 107).
  3. Module radiateur selon la revendication 1 ou 2,
    caractérisé en ce que
    l'unité de commande de commutation présente une interface de bus pour raccorder un bus de signal de commande pour liaison à une commande de l'installation.
  4. Module radiateur selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'unité de commande de commutation (17) présente un raccordement de ligne de signal (27) pour liaison de signal reliée par ligne à une commande de l'installation, en particulier par un câble central de commande.
  5. Module radiateur selon la revendication 4,
    caractérisé en ce que
    le raccordement de ligne de signal est affecté à un raccordement d'alimentation électrique relié à un raccordement central d'alimentation électrique et comprend un étage démodulateur pour récupérer des signaux de commande modulés par une tension d'alimentation.
  6. Module radiateur selon l'une quelconque des revendications 1 à 3,
    caractérisé en ce que
    l'unité de commande de commutation (117) présente une unité de réception radio (118) pour la liaison de signal sans fil à une commande de l'installation (110, 120).
  7. Module radiateur selon la revendication 6,
    caractérisé en ce que
    l'unité de réception radio (118) est constituée pour réaliser une communication de données au moins unidirectionnelle, de préférence bidirectionnelle, avec la commande de l'installation (110, 120), en particulier sur la base des standards DECT ou Bluetooth ou UMTS.
  8. Module radiateur selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'unité de commande de commutation présente une mémoire de code de module radiateur pour stocker un identificateur du module radiateur individuel et
    un émetteur de code de module radiateur pour transmettre l'identificateur à une commande de l'installation, en particulier en cas d'échange suite à un signal d'interrogation de celle-ci.
  9. Module radiateur selon l'une quelconque des revendications précédentes,
    caractérisé par
    un câblage fixe (23) disposé sur le corps réflecteur (3), en particulier pré-réalisé sous forme de module, entre l'unité de commande de commutation (17) et les contacts de raccordement (13, 17) de l'émetteur (7) ou des émetteurs.
  10. Module radiateur selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    au moins un émetteur (7; 107) est réalisé en particulier sous forme de lampe halogène haute puissance, en forme de tube allongé, exploitée avec une température de radiateur supérieure à 2900 K.
  11. Module radiateur selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'unité de commande de commutation (17) et des modules de câblage fixe (23) prévus au choix, sont vissés ou enfichés sur le corps réflecteur (3).
  12. Module radiateur selon l'une quelconque des revendications précédentes,
    caractérisé par
    au moins un capteur intégré (122), en particulier un élément pyromètre pour mesurer la température et/ou un capteur d'humidité pour mesurer l'humidité et/ou un dispositif de détection optique de reconnaissance de matériau ou de mesure d'énergie de rayonnement d'une pièce à travailler (106).
  13. Module radiateur selon la revendication 12,
    caractérisé en ce que
    l'unité de commande de commutation présente une mémoire de code de capteur pour stocker un identificateur du capteur ou de chaque capteur intégré et
    un émetteur de code de capteur pour transmettre l'identificateur ou les identificateurs à une commande de l'installation, en particulier en cas d'échange suite à une interrogation de celle-ci.
  14. Module radiateur selon l'une quelconque des revendications précédentes, en particulier l'une quelconque des revendications 8 à 13
    caractérisé en ce que
    l'unité de commande de commutation présente une commande d'inscription pour envoyer un enregistrement d'inscription à une unité de commande de l'installation lors de la mise en service, la commande d'inscription étant en particulier reliée à l'émetteur de code de module radiateur et/ou l'émetteur de code de capteur pour transmettre à la commande de l'installation des identificateurs du module radiateur ou du ou de chacun des capteurs intégrés.
  15. Installation de rayonnement à haute performance (102, 104) pour processus de traitement thermique, présentant au moins un émetteur (107) de rayonnements électromagnétiques qui présentent des parties essentielles efficaces dans la zone de l'infrarouge proche, une unité de commande de commutation (117) pour l'alimentation électrique et le pilotage de l'émetteur, l'émetteur et l'unité de commande de commutation étant en particulier regroupés dans un module radiateur (102A, 102B, 104A, 104B) selon l'une quelconque des revendications précédentes, ainsi qu'une commande de l'installation (110),
    caractérisée en ce que
    l'unité de commande de commutation ou chacune d'elles est réalisée en tant que commande intelligente de puissance avec des moyens de surveillance pour surveiller l'état, en particulier de surveillance de tension et de courant dans un but de détection avant panne, et/ou de moyens de pilotage pour suivre un moins une courbe caractéristique prédéterminée, en particulier un courbe de commutation de mise en marche, de l'émetteur ou de chacun d'eux.
  16. Installation de rayonnement à haute performance selon la revendication 15,
    caractérisée par
    des moyens de surveillance et/ou de pilotage fonctionnant indépendamment et en nombre correspondant au nombre d'émetteurs à surveiller et/ou piloter.
  17. Installation de rayonnement à haute performance selon la revendication 15 ou 16,
    caractérisée en ce que
    l'unité de commande de commutation présente un raccordement pour un capteur, en particulier un capteur de température fonctionnant sans contact (122) et/ou un capteur d'humidité pour mesurer l'humidité et/ou un dispositif de détection optique de reconnaissance de matériau ou de mesure d'énergie de rayonnement et au moins une unité de traitement de signal de mesure.
  18. Installation de rayonnement à haute performance selon la revendication 17,
    caractérisée par
    un étage de régulation en aval de l'unité de traitement de signal de mesure ou des unités de traitement de signal de mesure pour réaliser une régulation d'un processus de traitement thermique.
  19. Installation de rayonnement à haute performance selon l'une quelconque des revendications 15 à 18,
    caractérisée en ce que
    les modules radiateur présentent des dispositifs mémoire et d'émission d'identificateurs des modules radiateur et que la commande de l'installation présente un étage de reconnaissance de module radiateur pour exploiter des identificateurs transmis par les modules radiateur, en particulier un code de module radiateur et/ou au moins un code de capteur, constitué pour, en particulier, réaliser une inscription automatique des modules radiateur de l'installation lors de la mise en service.
EP02761915A 2001-04-18 2002-04-16 Module emetteur de rayonnement et installation d'exposition a un rayonnement haute puissance Expired - Lifetime EP1381816B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE10119043 2001-04-18
DE10119043 2001-04-18
DE10125888 2001-05-28
DE10125888A DE10125888C2 (de) 2001-04-18 2001-05-28 Strahlermodul und Hochleistungs-Bestrahlungsanlage
PCT/EP2002/004215 WO2002084190A1 (fr) 2001-04-18 2002-04-16 Module emetteur de rayonnement et installation d'exposition a un rayonnement haute puissance

Publications (2)

Publication Number Publication Date
EP1381816A1 EP1381816A1 (fr) 2004-01-21
EP1381816B1 true EP1381816B1 (fr) 2007-01-24

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP02761915A Expired - Lifetime EP1381816B1 (fr) 2001-04-18 2002-04-16 Module emetteur de rayonnement et installation d'exposition a un rayonnement haute puissance

Country Status (4)

Country Link
EP (1) EP1381816B1 (fr)
AT (1) ATE352763T1 (fr)
DE (1) DE50209346D1 (fr)
WO (1) WO2002084190A1 (fr)

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE792611A (fr) * 1971-12-16 1973-03-30 Stramax A G Projecteur lumineux a refroidissement
US4218831A (en) * 1978-11-28 1980-08-26 Westinghouse Electric Corp. Continuous ultraviolet curing system
US4691267A (en) * 1985-01-28 1987-09-01 Giesberg Daniel J Film illuminator
DE8706101U1 (de) * 1987-04-28 1987-06-11 ISE Elektroschaltbau GmbH, 5207 Ruppichteroth Wärmestrahler
US5038361A (en) * 1988-11-09 1991-08-06 Wu Ching S Paint drying furnace
US4983852A (en) * 1988-11-17 1991-01-08 Burgio Joseph T Jr System and method for photochemically curing a coating on a substrate
US5993591A (en) * 1996-12-18 1999-11-30 Texas Instruments Incorporated Coring of leadframes in carriers via radiant heat source
DE19700968A1 (de) * 1997-01-14 1998-07-16 Andreas Toeteberg Leuchtenfertigmodul in Flachbauweise mit besonders rationeller und kompakter Ausgestaltung
DE19806609A1 (de) 1998-02-18 1999-08-19 Beiersdorf Ag Verfahren zur kontinuierlichen, lösungsmittel- und mastikationsfreien Herstellung von druckempfindlichen Selbstklebemassen auf Basis von nicht-thermoplastischen Elastomeren sowie deren Beschichtung zur Herstellung von selbstklebenden Artikeln
DE19807643C2 (de) 1998-02-23 2000-01-05 Industrieservis Ges Fuer Innov Verfahren und Vorrichtung zum Trocknen eines Trocknungsgutes an der Oberfläche eines schnell geförderten Trägermaterials, insbesondere zum Druckfarbentrocknen
DE10051904B4 (de) 2000-09-18 2006-01-05 Advanced Photonics Technologies Ag Strahlungsquelle und Bestrahlungsanordnung
DE20020605U1 (de) * 2000-10-16 2001-03-08 Advanced Photonics Tech Ag Handgeführte Bestrahlungseinrichtung
DE10051641B4 (de) 2000-10-18 2009-10-15 Advanced Photonics Technologies Ag Bestrahlungsanordnung
DE20020319U1 (de) * 2000-10-18 2001-03-15 Advanced Photonics Technologies AG, 83052 Bruckmühl Bestrahlungsanordnung

Also Published As

Publication number Publication date
ATE352763T1 (de) 2007-02-15
EP1381816A1 (fr) 2004-01-21
WO2002084190A1 (fr) 2002-10-24
DE50209346D1 (de) 2007-03-15

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