WO2008110324A1 - Coating plant - Google Patents
Coating plant Download PDFInfo
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- WO2008110324A1 WO2008110324A1 PCT/EP2008/001888 EP2008001888W WO2008110324A1 WO 2008110324 A1 WO2008110324 A1 WO 2008110324A1 EP 2008001888 W EP2008001888 W EP 2008001888W WO 2008110324 A1 WO2008110324 A1 WO 2008110324A1
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- Prior art keywords
- conveyor chain
- plant according
- coating plant
- coating
- station
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G1/00—Non-rotary, e.g. reciprocated, appliances
- F28G1/08—Non-rotary, e.g. reciprocated, appliances having scrapers, hammers, or cutters, e.g. rigidly mounted
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B16/00—Spray booths
- B05B16/20—Arrangements for spraying in combination with other operations, e.g. drying; Arrangements enabling a combination of spraying operations
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
- F28F19/008—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using scrapers
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- 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
- B05C9/10—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 being performed before the application
Definitions
- the invention relates to a coating system for painting or powder coating workpieces, with a plurality of stations for the treatment of workpieces, and with a conveyor with a conveyor chain for conveying workpieces through at least one of the stations.
- the invention is therefore based on the object to provide an improved coating system, which ensures a higher quality of the coated workpieces.
- a coating system for painting or powder coating of workpieces with a plurality of stations for the treatment of workpieces, and with a conveyor with a conveyor chain for conveying workpieces through at least one of the stations, wherein a zuank- Liche heater for preheating which is provided in the at least one station incoming conveyor chain or from associated racks or frame for workpiece holder.
- condensate formation and dirt formation on the conveyor chain and the workpiece holders are avoided by the preheating of the conveyor chain or of associated frames or frames for workpiece reception when entering the station.
- the risk of dripping condensate or a trickling down of dirt particles on the workpiece surfaces or in the air stream of procedural relevant zones is largely avoided.
- the heater in addition to the already existing heating to heat the station to operating temperature or. the workpieces is provided.
- the heating device comprises at least one heat exchanger, which is used for preheating the conveyor chain or of associated frames or frames. This allows a particularly energy-saving preheating of the conveyor chain.
- the heater comprises an electrically or gas operated infrared heater for preheating the conveyor chain or of associated frames or frames.
- the heating device comprises a fan for preheating the conveyor chain or of associated racks or frames with hot air.
- the heating device comprises heating elements for contact heating of the conveyor chain or of associated frames or frames.
- the heating device comprises at least one gas burner. This can be designed for direct flame treatment of the conveyor chain or of associated frames or frames.
- flue gases can be diverted from the gas burner and used to heat a heating chamber, which encloses the conveyor chain.
- a heating chamber which encloses the conveyor chain.
- This can be a gas burner, which is used for direct heating.
- flue gases can be diverted to preheat the conveyor chain.
- the conveyor chain or associated frames or frames is heated at least up to the operating temperature of at least one station, preferably about 10 to 30 K higher. This is particularly advantageous in order to avoid condensation.
- the at least one station is preferably designed as a powder oven.
- the conveyor chain is therefore preferably heated to the inlet to the powder oven to, for example, about 220 ° C.
- FIG. 1 shows a schematic representation of a coating plant according to the invention, wherein for the sake of simplicity only one station in the form of a powder oven is shown, through which a conveyor extends;
- Fig. 3 is a schematic representation of a burner for direct heating, which is diverted a portion of the flue gases for heating the heating chamber of FIG. 2
- Fig. 4 is a schematic representation of a burner to which a part of the flue gases for heating the heating chamber shown in FIG. 2 is diverted, wherein the burner is designed for indirect heating by means of a heat exchanger.
- a coating system according to the invention is shown in total with the numeral 10. It is, for example, a system for coating workpieces with acrylate powder.
- the coater 10 includes a number of stations, for example, multiple pre-treatment and rinsing stations, a pre-dryer and dryers, one or more powder coating stations, one or more powder ovens, etc.
- stations for example, multiple pre-treatment and rinsing stations, a pre-dryer and dryers, one or more powder coating stations, one or more powder ovens, etc.
- a single station 12 is shown here. which is a powder oven for baking acrylate powder.
- a conveyor 16 extends with a conveyor chain 18, with racks 19 for receiving workpieces 20.
- the conveyor chain 18 with the racks 19 passes through the station 12 in the direction of arrow 22 to promote workpieces 20 through the station 12.
- the station 12 has a preheating zone 14, within which the conveyor chain 18, as well as parts of the associated frames 19 are preheated to the workpiece holder, namely to a temperature which is higher than the operating temperature of the station 12th
- Powder furnaces are usually operated at temperatures of about 180 0 C to 220 0 C.
- the preheating of the conveyor chain 18 could, for example, to a temperature of about 220 0 C.
- an infrared heater 24 is provided, which may be electrically or gas-powered.
- a heat exchanger 26 may be provided, with the exhaust air 28 of the station 12 heat is removed, which is used to heat clean air 32, via a conduit 34 and a blower 36 in the preheating zone 14th is blown to preheat the conveyor chain 18 also.
- the exhaust air is discharged via an exhaust pipe 30 to the outside.
- the actual heating of the conveyor chain 18 and the racks 19 to the temperature of, for example, 220 0 C is then carried out by means of the heater 24, so as the infrared heater.
- the heater 24 is provided in addition to the already existing (not shown) heater for the station 12, so with the station 12 is kept at operating temperature and the workpieces 20 are heated.
- Fig. 2 shows a cross section through a chain guide together with conveyor chain 40, which is enclosed by a heating chamber 42 and a heat insulation 44.
- the heating chamber 42 is formed in the present case for heating by means of flue gases from a burner 50 according to FIG. 3 or from a burner 60 according to FIG. 4. In this way, a very effective heating of the conveyor chain 40 is made possible (in Fig. 2, the recorded on the conveyor chain 40, down out standing hangers are not shown for clarity). Since the heating chamber 42 is completely sealed off from the conveyor chain 40 by a wall 46, there is no mixing of flue gases with the cabin air in the station 12, through which the conveyor chain 40 is guided.
- flue gases are branched off from a burner 50, which is designed for direct heating, via a branch 52 and fed to the heating chamber 42 via a line 54.
- flue gases are branched off via a branch 62 from a burner 60, which is designed for indirect heating by means of a heat exchanger 66, and fed to the heating chamber 42 via a line 64.
- the burner 60 may thus be, for example, a burner which is also used to heat the station.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Coating Apparatus (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
Beschichtungsanlage coating plant
Die Erfindung betrifft eine Beschichtungsanlage zur Lackierung oder Pulverbeschichtung von Werkstücken, mit einer Mehrzahl von Stationen zur Behandlung von Werkstücken, und mit einem Förderer mit einer Förderkette zur Förderung von Werkstücken durch mindestens eine der Stationen.The invention relates to a coating system for painting or powder coating workpieces, with a plurality of stations for the treatment of workpieces, and with a conveyor with a conveyor chain for conveying workpieces through at least one of the stations.
Um hochwertige Beschichtungen zu gewährleisten, müssen sämtliche Komponenten einer Beschichtungsanlage optimal aufeinander abgestimmt sein.To ensure high-quality coatings, all components of a coating system must be optimally matched to each other.
Es hat sich jedoch gezeigt, dass die ständig steigenden Qualitätsanforderungen bei vielen Beschichtungsanlagen nicht dauerhaft gewährleistet werden können. So ergeben sich immer wieder mit Fehlern behaftete Teile, die Schmutz- oder Kondensateinschlüsse aufweisen. Der Erfindung liegt somit die Aufgabe zu Grunde, eine verbesserte Beschichtungsan- lage zu schaffen, die eine höhere Qualität der beschichteten Werkstücke gewährleistet.However, it has been shown that the constantly increasing quality requirements can not be permanently guaranteed in many coating systems. Thus, repeatedly resulting in error-prone parts that have dirt or Kondensateinschlüsse. The invention is therefore based on the object to provide an improved coating system, which ensures a higher quality of the coated workpieces.
Diese Aufgabe wird erfindungsgemäß durch eine Beschichtungsanlage zur Lackierung oder Pulverbeschichtung von Werkstücken gelöst, mit einer Mehrzahl von Stationen zur Behandlung von Werkstücken, und mit einem Förderer mit einer Förderkette zur Förderung von Werkstücken durch mindestens eine der Stationen, wobei eine zuätz- liche Heizeinrichtung zur Vorheizung der in die mindestens eine Station einlaufende Förderkette oder von zugehörigen Gestellen oder von Rahmen zur Werkstückaufnahme vorgesehen ist.This object is achieved by a coating system for painting or powder coating of workpieces, with a plurality of stations for the treatment of workpieces, and with a conveyor with a conveyor chain for conveying workpieces through at least one of the stations, wherein a zuätz- Liche heater for preheating which is provided in the at least one station incoming conveyor chain or from associated racks or frame for workpiece holder.
Die Aufgabe der Erfindung wird auf diese Weise vollkommen gelöst.The object of the invention is completely solved in this way.
Erfindungsgemäß wird nämlich durch die Vorheizung der Förderkette bzw. von zugehörigen Gestellen oder Rahmen zur Werkstückaufnahme beim Einlaufen in die Station eine Kondensatbildung und Schmutzbildung an der Förderkette und den Werkstückaufnahmen vermieden. So wird die Gefahr eines Abtropfens von Kondensat oder eines Herabrieselns von Schmutzteilchen auf die Werkstückoberflächen oder in den Luftstrom von verfahrenstechnisch relevanten Zonen weitgehend vermieden. Es versteht sich, dass die Heizung zusätzlich zur ohnehin vorhandenen Heizung zur Beheizung der Station auf Betriebstemperatur bzw,. der Werkstücke vorgesehen ist.According to the invention, condensate formation and dirt formation on the conveyor chain and the workpiece holders are avoided by the preheating of the conveyor chain or of associated frames or frames for workpiece reception when entering the station. Thus, the risk of dripping condensate or a trickling down of dirt particles on the workpiece surfaces or in the air stream of procedural relevant zones is largely avoided. It is understood that the heater in addition to the already existing heating to heat the station to operating temperature or. the workpieces is provided.
So ergibt sich eine deutlich verbesserte Qualität der Werkstückoberflächen. Insbesondere bei Acrylatpulverbeschichtungen wird die Qualität der Beschichtung deutlich gesteigert.This results in a significantly improved quality of the workpiece surfaces. Especially with acrylate powder coatings, the quality of the coating is significantly increased.
Gemäß einer weiteren Ausgestaltung der Erfindung umfasst die Heizeinrichtung mindestens einen Wärmetauscher, der zur Vorwärmung der Förderkette bzw. von zugehörigen Gestellen oder Rahmen genutzt wird. So ist eine besonders energiesparende Vorwärmung der Förderkette ermöglicht.According to a further embodiment of the invention, the heating device comprises at least one heat exchanger, which is used for preheating the conveyor chain or of associated frames or frames. This allows a particularly energy-saving preheating of the conveyor chain.
In zusätzlicher Weiterbildung der Erfindung umfasst die Heizeinrichtung eine elektrisch oder mit Gas betreibbare Infrarotheizung zur Vorwärmung der Förderkette bzw. von zugehörigen Gestellen oder Rahmen.In an additional embodiment of the invention, the heater comprises an electrically or gas operated infrared heater for preheating the conveyor chain or of associated frames or frames.
Gemäß einer weiteren Ausgestaltung der Erfindung umfasst die Heizeinrichtung ein Gebläse zur Vorwärmung der Förderkette bzw. von zugehörigen Gestellen oder Rahmen mit heißer Luft.According to a further embodiment of the invention, the heating device comprises a fan for preheating the conveyor chain or of associated racks or frames with hot air.
In zusätzlicher Weiterbildung der Erfindung umfasst die Heizeinrichtung Heizelemente zur Kontaktheizung der Förderkette bzw. von zugehörigen Gestellen oder Rahmen.In an additional embodiment of the invention, the heating device comprises heating elements for contact heating of the conveyor chain or of associated frames or frames.
Gemäß einer weiteren Ausgestaltung der Erfindung umfasst die Heizeinrichtung mindestens einen Gasbrenner. Dieser kann zur direkten Beflammung der Förderkette bzw. von zugehörigen Gestellen oder Rahmen ausgebildet sein.According to a further embodiment of the invention, the heating device comprises at least one gas burner. This can be designed for direct flame treatment of the conveyor chain or of associated frames or frames.
Alternativ können jedoch auch Rauchgase aus dem Gasbrenner abgezweigt werden und zur Beheizung einer Heizkammer genutzt werden, die die Förderkette umschließt. Hierbei kann es sich um einen Gasbrenner handeln, der zur Direktheizung eingesetzt wird. Auch aus einem Gasbrenner, der zur indirekten Beheizung mittels eines Wärmetauschers ausgebildet ist, können Rauchgase zur Vorheizung der Förderkette abgezweigt werden.Alternatively, however, flue gases can be diverted from the gas burner and used to heat a heating chamber, which encloses the conveyor chain. This can be a gas burner, which is used for direct heating. Also from a gas burner, which is designed for indirect heating by means of a heat exchanger, flue gases can be diverted to preheat the conveyor chain.
Sämtliche dieser Maßnahmen ermöglichen eine wirkungsvolle und Energie sparende Vorheizung der Förderkette.All these measures enable effective and energy-saving preheating of the conveyor chain.
In zusätzlicher Weiterbildung der Erfindung wird die Förderkette bzw. zugehörige Gestellen oder Rahmen mindestens bis auf die Betriebstemperatur der mindestens einen Station aufgeheizt, vorzugsweise etwa 10 bis 30 K höher. Dies ist besonders vorteilhaft, um eine Kondensatbildung zu vermeiden.In an additional embodiment of the invention, the conveyor chain or associated frames or frames is heated at least up to the operating temperature of at least one station, preferably about 10 to 30 K higher. This is particularly advantageous in order to avoid condensation.
Die mindestens eine Station ist vorzugsweise als Pulverofen ausgebildet.The at least one station is preferably designed as a powder oven.
Bei der Pulverbeschichtung von Werkstücken, insbesondere mit Acrylatpulvern, ergeben sich so besonders große Qualitätsverbesserungen.In the powder coating of workpieces, in particular with acrylate powders, this results in particularly great quality improvements.
Da Pulveröfen in der Regel Betriebstemperaturen von etwa 180 bis 200 0C aufweisen, wird die Förderkette also vorzugsweise vor dem Einlauf in den Pulverofen auf beispielsweise etwa 220 °C erwärmt.Since powder furnaces usually operating temperatures of about 180 to 200 0 C, the conveyor chain is therefore preferably heated to the inlet to the powder oven to, for example, about 220 ° C.
Es versteht sich, dass die vorstehend genannten und die nachstehend noch zu erläuternden Merkmale der Erfindung nicht nur in jeweils angegebenen Kombinationen, sondern auch in anderen Kombinationen oder in Alleinstellung verwendbar sind, ohne den Rahmen der Erfindung zu verlassen.It is understood that the features of the invention mentioned above and those yet to be explained below can be used not only in respectively specified combinations, but also in other combinations or in isolation, without departing from the scope of the invention.
Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung eines bevorzugten Ausführungsbeispiels unter Bezugnahme auf die Zeichnung. Es zeigen:Further features and advantages of the invention will become apparent from the following description of a preferred embodiment with reference to the drawings. Show it:
Fig. 1 eine schematische Darstellung einer erfindungsgemäßen Beschichtungsanla- ge, wobei der Einfachheit halber nur eine Station in Form eines Pulverofens dargestellt ist, durch den sich ein Förderer erstreckt;1 shows a schematic representation of a coating plant according to the invention, wherein for the sake of simplicity only one station in the form of a powder oven is shown, through which a conveyor extends;
Fig. 2 einen Querschnitt durch eine Kettenaufnahme mit einer diese umschließenden Heizkammer;2 shows a cross section through a chain receiver with a heating chamber enclosing this;
Fig. 3 eine schematische Darstellung eines Brenners zur Direktbeheizung, dem ein Teil der Rauchgase zur Beheizung der Heizkammer gemäß Fig. 2 abgezweigt wird und Fig. 4 eine schematische Darstellung eines Brenners, dem ein Teil der Rauchgase zur Beheizung der Heizkammer gemäß Fig. 2 abgezweigt wird, wobei der Brenner zur indirekten Beheizung mittels eines Wärmetauschers ausgebildet ist.Fig. 3 is a schematic representation of a burner for direct heating, which is diverted a portion of the flue gases for heating the heating chamber of FIG. 2 and Fig. 4 is a schematic representation of a burner to which a part of the flue gases for heating the heating chamber shown in FIG. 2 is diverted, wherein the burner is designed for indirect heating by means of a heat exchanger.
In Fig. 1 ist eine erfindungsgemäße Beschichtungsanlage insgesamt mit der Ziffer 10 dargestellt. Es handelt sich bspw. um eine Anlage zur Beschichtung von Werkstücken mit Acrylatpulver.In Fig. 1, a coating system according to the invention is shown in total with the numeral 10. It is, for example, a system for coating workpieces with acrylate powder.
Es versteht sich, dass die Beschichtungsanlage 10 eine Reihe von Stationen aufweist, bspw. mehrere Vorbehandlungs- und Spülstationen, einen Vortrockner und Trockner, eine oder mehrere Pulverbeschichtungsstationen, einen oder mehrere Pulveröfen usw. Der Einfachheit halber ist hier lediglich eine einzige Station 12 dargestellt, bei der es sich um einen Pulverofen zum Einbrennen von Acrylatpulver handelt.It will be appreciated that the coater 10 includes a number of stations, for example, multiple pre-treatment and rinsing stations, a pre-dryer and dryers, one or more powder coating stations, one or more powder ovens, etc. For simplicity, only a single station 12 is shown here. which is a powder oven for baking acrylate powder.
Durch die Station 12 verläuft ein Förderer 16 mit einer Förderkette 18, mit Gestellen 19 zur Aufnahme von Werkstücken 20. Die Förderkette 18 mit den Gestellen 19 läuft durch die Station 12 in Richtung des Pfeiles 22, um Werkstücke 20 durch die Station 12 zu fördern. Die Station 12 weist eine Vorwärmzone 14 auf, innerhalb derer die Förderkette 18, sowie Teile der zugehörigen Gestelle 19 zur Werkstückaufnahme vorgeheizt werden, und zwar auf eine Temperatur, die höher ist als die Betriebstemperatur der Station 12.Through the station 12, a conveyor 16 extends with a conveyor chain 18, with racks 19 for receiving workpieces 20. The conveyor chain 18 with the racks 19 passes through the station 12 in the direction of arrow 22 to promote workpieces 20 through the station 12. The station 12 has a preheating zone 14, within which the conveyor chain 18, as well as parts of the associated frames 19 are preheated to the workpiece holder, namely to a temperature which is higher than the operating temperature of the station 12th
Pulveröfen werden üblicherweise mit Temperaturen von etwa 180 0C bis 220 0C betrieben. So könnte die Vorheizung der Förderkette 18 bspw. auf eine Temperatur von etwa 220 0C erfolgen.Powder furnaces are usually operated at temperatures of about 180 0 C to 220 0 C. Thus, the preheating of the conveyor chain 18 could, for example, to a temperature of about 220 0 C.
Zur Vorheizung ist eine Infrarotheizung 24 vorgesehen, die elektrisch oder gasbetrieben sein kann. Zusätzlich kann ein Wärmetauscher 26 vorgesehen sein, mit dem der Abluft 28 der Station 12 Wärme entzogen wird, die zur Aufheizung von Reinluft 32 verwendet wird, die über eine Leitung 34 und ein Gebläse 36 in die Vorwärmzone 14 eingeblasen wird, um die Förderkette 18 gleichfalls vorzuheizen. Nach Durchströmen des Wärmetauschers 26 wird die Abluft über ein Abgasrohr 30 nach außen ausgegeben. Die eigentliche Aufheizung der Förderkette 18 und der Gestelle 19 auf die Temperatur von bspw. 220 0C erfolgt anschließend mittels der Heizeinrichtung 24, also etwa der Infrarotheizeinrichtung. Es versteht sich, dass die Heizeinrichtung 24 zusätzlich zu der ohnehin vorhandenen (nicht dargestellten) Heizeinrichtung für die Station 12 vorgesehen ist, mit der also die Station 12 auf Betriebstemperatur gehalten wird und die Werkstücke 20 aufgeheizt werden.For preheating an infrared heater 24 is provided, which may be electrically or gas-powered. In addition, a heat exchanger 26 may be provided, with the exhaust air 28 of the station 12 heat is removed, which is used to heat clean air 32, via a conduit 34 and a blower 36 in the preheating zone 14th is blown to preheat the conveyor chain 18 also. After flowing through the heat exchanger 26, the exhaust air is discharged via an exhaust pipe 30 to the outside. The actual heating of the conveyor chain 18 and the racks 19 to the temperature of, for example, 220 0 C is then carried out by means of the heater 24, so as the infrared heater. It is understood that the heater 24 is provided in addition to the already existing (not shown) heater for the station 12, so with the station 12 is kept at operating temperature and the workpieces 20 are heated.
Durch die Aufheizung der Förderkette 18 und der Gestelle 19 auf eine Temperatur oberhalb der Betriebstemperatur der Station 12 wird eine Kondensatbildung an der Förderkette 18 und den Gestellen 19 vermieden. Auch wird die Bildung von Ablagerungen an der Förderkette 18 und den Gestellen 19 reduziert, die auf die Werkstücke 20 von der Förderkette 18 herabfallen können und somit die Werkstückqualität beeinträchtigen können.By heating the conveyor chain 18 and the racks 19 to a temperature above the operating temperature of the station 12, condensation on the conveyor chain 18 and the racks 19 is avoided. Also, the formation of deposits on the conveyor chain 18 and the racks 19 is reduced, which may fall on the workpieces 20 of the conveyor chain 18 and thus may affect the quality of the workpiece.
Fig. 2 zeigt einen Querschnitt durch eine Kettenführung nebst Förderkette 40, die von einer Heizkammer 42 und einer Wärmeisolierung 44 umschlossen ist. Die Heizkammer 42 ist im vorliegenden Fall zur Beheizung mittels Rauchgasen aus einem Brenner 50 gemäß Fig. 3 oder aus einem Brenner 60 gemäß Fig. 4 ausgebildet. Auch auf diese Weise wird eine sehr wirkungsvolle Beheizung der Förderkette 40 ermöglicht (in Fig. 2 sind die an der Förderkette 40 aufgenommenen, nach unten heraus stehenden Gehänge der Übersichtlichkeit halber nicht dargestellt). Da die Heizkammer 42 durch eine Wand 46 vollständig gegenüber der Förderkette 40 abgeschottet ist, erfolgt keine Vermischung von Rauchgasen mit der Kabinenluft in der Station 12, durch die die Förderkette 40 geführt ist.Fig. 2 shows a cross section through a chain guide together with conveyor chain 40, which is enclosed by a heating chamber 42 and a heat insulation 44. The heating chamber 42 is formed in the present case for heating by means of flue gases from a burner 50 according to FIG. 3 or from a burner 60 according to FIG. 4. In this way, a very effective heating of the conveyor chain 40 is made possible (in Fig. 2, the recorded on the conveyor chain 40, down out standing hangers are not shown for clarity). Since the heating chamber 42 is completely sealed off from the conveyor chain 40 by a wall 46, there is no mixing of flue gases with the cabin air in the station 12, through which the conveyor chain 40 is guided.
Gemäß Fig. 3 werden aus einem Brenner 50, der zur Direktheizung ausgebildet ist, über eine Abzweigung 52 Rauchgase abgezweigt und der Heizkammer 42 über eine Leitung 54 zugeführt. Gemäß Fig. 4 werden aus einem Brenner 60, der zur indirekten Beheizung mittels eines Wärmetauschers 66 ausgebildet ist, Rauchgase über eine Abzweigung 62 abgezweigt und über eine Leitung 64 der Heizkammer 42 zugeführt.According to FIG. 3, flue gases are branched off from a burner 50, which is designed for direct heating, via a branch 52 and fed to the heating chamber 42 via a line 54. According to FIG. 4, flue gases are branched off via a branch 62 from a burner 60, which is designed for indirect heating by means of a heat exchanger 66, and fed to the heating chamber 42 via a line 64.
Bei dem Brenner 60 kann es sich also beispielsweise um einen Brenner handeln, der auch zur Beheizung der Station verwendet wird. The burner 60 may thus be, for example, a burner which is also used to heat the station.
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP08716398A EP2134476A1 (en) | 2007-03-09 | 2008-03-10 | Coating plant |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007012254.5 | 2007-03-09 | ||
| DE102007021653.1 | 2007-05-07 | ||
| DE102007021653A DE102007021653B4 (en) | 2007-03-09 | 2007-05-07 | coating plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2008110324A1 true WO2008110324A1 (en) | 2008-09-18 |
Family
ID=39869765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2008/001888 Ceased WO2008110324A1 (en) | 2007-03-09 | 2008-03-10 | Coating plant |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2134476A1 (en) |
| DE (1) | DE102007021653B4 (en) |
| WO (1) | WO2008110324A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0622128A1 (en) * | 1993-04-21 | 1994-11-02 | AXIS S.p.A. | Resin coating system and method |
| WO1996001155A1 (en) * | 1994-07-05 | 1996-01-18 | Nd Industries, Inc. | Method and apparatus for the application of liquid materials onto substrates |
| US20030026897A1 (en) * | 2001-07-24 | 2003-02-06 | Barberan Latorre Jesus Francisco | Automatic machine for varnishing flat wood, MDF or particle board, with ultraviolett powder |
| US20040112284A1 (en) * | 2000-08-31 | 2004-06-17 | Honda Giken Kogyo Kabushiki Kaisha | Painting equipment and painting method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT292888B (en) | 1968-05-16 | 1971-09-10 | Zanussi A Spa Industrie | Continuously operating system for coating metal objects with a plastic coating |
| AT391328B (en) * | 1988-11-29 | 1990-09-25 | Fehrer Ernst | Drawframe for a ring spinning device |
| DE9010094U1 (en) * | 1990-07-03 | 1990-09-06 | Pagendarm GmbH, 2000 Hamburg | Device for applying a coating agent to a substrate |
-
2007
- 2007-05-07 DE DE102007021653A patent/DE102007021653B4/en not_active Expired - Fee Related
-
2008
- 2008-03-10 WO PCT/EP2008/001888 patent/WO2008110324A1/en not_active Ceased
- 2008-03-10 EP EP08716398A patent/EP2134476A1/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0622128A1 (en) * | 1993-04-21 | 1994-11-02 | AXIS S.p.A. | Resin coating system and method |
| WO1996001155A1 (en) * | 1994-07-05 | 1996-01-18 | Nd Industries, Inc. | Method and apparatus for the application of liquid materials onto substrates |
| US20040112284A1 (en) * | 2000-08-31 | 2004-06-17 | Honda Giken Kogyo Kabushiki Kaisha | Painting equipment and painting method |
| US20030026897A1 (en) * | 2001-07-24 | 2003-02-06 | Barberan Latorre Jesus Francisco | Automatic machine for varnishing flat wood, MDF or particle board, with ultraviolett powder |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2134476A1 (en) | 2009-12-23 |
| DE102007021653A1 (en) | 2008-09-18 |
| DE102007021653B4 (en) | 2009-07-09 |
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