JP6084253B2 - Continuous coating equipment - Google Patents

Continuous coating equipment Download PDF

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JP6084253B2
JP6084253B2 JP2015106913A JP2015106913A JP6084253B2 JP 6084253 B2 JP6084253 B2 JP 6084253B2 JP 2015106913 A JP2015106913 A JP 2015106913A JP 2015106913 A JP2015106913 A JP 2015106913A JP 6084253 B2 JP6084253 B2 JP 6084253B2
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chamber
coating
gas recovery
gas
heating
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JP2016221418A (en
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晃一 二階堂
晃一 二階堂
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Chugai Ro Co Ltd
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Chugai Ro Co Ltd
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Priority to JP2015106913A priority Critical patent/JP6084253B2/en
Priority to KR1020177020976A priority patent/KR20180012239A/en
Priority to CN201680008955.9A priority patent/CN107206414A/en
Priority to PCT/JP2016/061279 priority patent/WO2016189977A1/en
Priority to TW105112112A priority patent/TW201700185A/en
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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
    • 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
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • 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
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

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  • Coating Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Description

本発明は、帯状体からなる被塗布物を走行させ、この被塗布物に塗布装置によって塗料を塗布し、このように塗料が塗布された被塗布物を加熱させる加熱室と、加熱された被塗布物を冷却させる冷却室とに導いて、被塗布物を連続塗装させる連続塗装装置に関するものである。特に、塗布装置により塗料が塗布された被塗布物を加熱室に導く途中や、加熱室において加熱された被塗布物を冷却室に導く途中において、被塗布物に塗布された塗料から発生したガスが外部に飛散するのを防止すると共に、塗装された被塗布物の塗膜に異物が付着するのを防止するようにした点に特徴を有するものである。   The present invention travels an object to be coated composed of a belt-like body, applies a paint to the object to be coated by a coating apparatus, and heats the object to be coated with the paint in this way, and a heated object to be coated. The present invention relates to a continuous coating apparatus that guides to a cooling chamber that cools the coated material and continuously coats the coated material. In particular, the gas generated from the paint applied to the coating material while the coating material coated with the coating material by the coating device is guided to the heating chamber, or while the coating material heated in the heating chamber is guided to the cooling chamber. Is characterized in that it is prevented from scattering to the outside and foreign matter is prevented from adhering to the coated film of the coated object.

従来、金属ストリップ等の帯状体からなる被塗布物を連続して塗装させるにあたり、特許文献１に示されるように、帯状体からなる被塗布物を走行させて、この被塗布物に塗布装置により塗料を塗布し、このように塗料が塗布された被塗布物を加熱装置により加熱させた後、このように加熱された被塗布物を冷却ユニットに導いて冷却させて、被塗布物を連続して塗装させることが行われている。   Conventionally, when continuously applying an object to be coated made of a strip-shaped body such as a metal strip, as shown in Patent Document 1, the object to be coated made of a band-shaped object is run and applied to the object to be coated by a coating apparatus. After applying the paint and heating the object to which the paint is applied in this way by a heating device, the object to be heated thus heated is guided to a cooling unit to be cooled, and the object to be applied is continuously provided. It is done to paint.

ここで、このようにして帯状体からなる被塗布物を連続して塗装させるようにした場合、塗布装置により塗料が塗布された被塗布物を加熱装置に導く途中や、加熱装置において加熱された被塗布物を冷却ユニットに導く途中において、被塗布物に塗布された塗料に含まれる有機溶剤やタール成分等がガスとなって外部に飛散し、環境に悪影響を与えるという問題があった。   Here, in the case where the object to be coated consisting of the belt-like body is continuously applied in this way, the object to which the coating material is applied by the coating device is guided to the heating device or heated in the heating device. During the course of guiding the object to be coated to the cooling unit, there has been a problem that the organic solvent, tar components, and the like contained in the paint applied to the object to be coated are scattered as a gas and adversely affect the environment.

また、従来においては、塗料が塗布された直後の被塗布物を直接加熱室に導いて、被塗布物に塗布された塗料を急速に加熱させて乾燥させた場合に、塗料に含まれる溶剤等が急速に蒸発され、塗膜の表面に発泡による凹凸が生じるのを抑制するため、特許文献２、３に示されるように、塗料が塗布された被塗布物を加熱させて乾燥させる加熱室の前に、塗料が塗布された被塗布物を低温で加熱させる低温加熱室を設け、塗料が塗布された直後の被塗布物を低温加熱室から加熱室に導いて、被塗布物に塗布された塗料が急速に加熱されるのを防止するようにしたものが提案されている。   In addition, in the past, when an object to be coated immediately after the coating is applied is directly guided to a heating chamber, and the paint applied to the object is rapidly heated and dried, the solvent contained in the coating In order to suppress the formation of irregularities due to foaming on the surface of the coating film, as shown in Patent Documents 2 and 3, a heating chamber that heats and drys the coated material to which the paint is applied is provided. Before, a low-temperature heating chamber for heating the coating object to which the paint was applied at a low temperature was provided, and the coating object immediately after the coating was applied was guided from the low-temperature heating chamber to the heating chamber and applied to the coating object. Proposals have been made to prevent the paint from being heated rapidly.

しかし、特許文献２、３に示されるものは、前記のように塗布装置により塗料が塗布された被塗布物を加熱室に導く途中や、加熱室において加熱された被塗布物を冷却室に導く途中において、被塗布物に塗布された塗料に含まれる有機溶剤やタール成分等がガスとなって外部に飛散するのを防止するものではなく、特に、加熱室において加熱された被塗布物を冷却室に導く途中において、塗料に含まれる有機溶剤やタール成分等が、ガスとなって外部に飛散するのを防止することはできず、連続塗装装置における被塗布物を導出させる出口の開口から外部に飛散されていた。   However, in Patent Documents 2 and 3, as described above, the object to which the coating material is applied by the coating apparatus is guided to the heating chamber, or the object heated in the heating chamber is guided to the cooling chamber. It does not prevent the organic solvent or tar components contained in the paint applied to the coating material from being scattered in the middle as a gas, and in particular, cools the coating material heated in the heating chamber. It is not possible to prevent organic solvents and tar components contained in the paint from scattering as gas to the outside during the lead to the chamber. Had been scattered.

特開２００９−２１４０６６号公報JP 2009-214066 A 特開平６−１１４３３１号公報JP-A-6-114331 特開平６−２６２１３２号公報JP-A-6-262132

本発明は、帯状体からなる被塗布物を走行させ、この被塗布物に塗布装置によって塗料を塗布し、このように塗料が塗布された被塗布物を加熱させる加熱室と、加熱された被塗布物を冷却させる冷却室とに導いて、被塗布物を連続塗装させる連続塗装装置において、塗布装置により塗料が塗布された被塗布物を加熱室に導く途中や、加熱室において加熱された被塗布物を冷却室に導く途中において、被塗布物に塗布された塗料から発生したガスが外部に飛散するのを防止すると共に、塗装された被塗布物の塗膜に異物が付着するのを防止することを課題とするものである。   The present invention travels an object to be coated composed of a belt-like body, applies a paint to the object to be coated by a coating apparatus, and heats the object to be coated with the paint in this way, and a heated object to be coated. In a continuous coating apparatus that guides to a cooling chamber that cools the coated material and continuously coats the coated material, the coated material coated by the coating device is being guided to the heating chamber or is heated in the heating chamber. During the course of guiding the coating material to the cooling chamber, it prevents the gas generated from the paint applied to the coating material from scattering to the outside and prevents foreign matter from adhering to the coating film of the coated coating material. It is an object to do.

本発明に係る連続塗装装置においては、前記のような課題を解決するため、帯状体からなる被塗布物を走行させ、この被塗布物に塗布装置によって塗料を塗布し、このように塗料が塗布された被塗布物を加熱させる加熱室と、加熱された被塗布物を冷却させる冷却室とに導いて、被塗布物を連続塗装させる連続塗装装置において、被塗布物に塗布された塗料から発生するガスを回収するガス回収室を、前記の塗布装置若しくは塗布室内に設けた塗布装置と加熱室との間、前記の加熱室と冷却室との間の少なくとも一方を設けると共に、前記のガス回収室の内面を加熱させる加熱手段を設けた。   In the continuous coating apparatus according to the present invention, in order to solve the above-described problems, an object to be coated made of a belt-shaped body is run, and the paint is applied to the object to be coated by the coating apparatus, and the paint is thus applied. Generated from the paint applied to the coating in a continuous coating device that continuously applies the coating to the heating chamber for heating the coated workpiece and the cooling chamber for cooling the heated coating. A gas recovery chamber for recovering the gas to be recovered is provided between the coating device or the coating chamber provided in the coating chamber and the heating chamber, and at least one of the heating chamber and the cooling chamber is provided. A heating means for heating the inner surface of the chamber was provided.

このように、塗布装置若しくは塗布室内に設けた塗布装置と加熱室との間や、加熱室と冷却室との間に、被塗布物に塗布された塗料から発生するガスを回収するガス回収室を設けると、塗布装置により塗料が塗布された被塗布物を加熱室に導く途中や、加熱室において加熱された被塗布物を冷却室に導く途中において、被塗布物に塗布された塗料から発生したガスが外部に飛散するのが防止されるようになる。   As described above, the gas recovery chamber for recovering the gas generated from the paint applied to the coating object between the coating device or the coating device provided in the coating chamber and the heating chamber, or between the heating chamber and the cooling chamber. Is generated from the paint applied to the coating material while the coating material coated with the coating device is guided to the heating chamber or while the coating material heated in the heating chamber is guided to the cooling chamber. The generated gas is prevented from being scattered outside.

また、前記のようにガス回収室の内面を加熱させる加熱手段を設けて、ガス回収室の内面を加熱させると、被塗布物に塗布された塗料から発生したガスが、ガス回収室の内面において冷却されて、液化したり固化したりするのが防止され、液化された液化物や固化された固化物が、塗料が塗布された被塗布物の上に落下して、塗装された被塗布物の塗膜に異物が付着するのが防止される。   In addition, when the heating means for heating the inner surface of the gas recovery chamber as described above is provided and the inner surface of the gas recovery chamber is heated, the gas generated from the paint applied to the coating object is generated on the inner surface of the gas recovery chamber. It is cooled and prevented from liquefying or solidifying, and the liquefied liquefied material or solidified solid material falls onto the coated material to which the paint is applied, and is coated. Foreign matter is prevented from adhering to the coating film.

また、前記の塗布装置を塗布室内に設けるようにすると、塗布装置における塗料から発生したガスが外部に飛散するのも防止されるようになる。   In addition, when the coating device is provided in the coating chamber, the gas generated from the paint in the coating device can be prevented from scattering to the outside.

そして、前記の連続塗装装置において、ガス回収室の内面を加熱手段によって加熱させるにあたっては、ガス回収室の壁部を２重構造にして壁部内に流路を形成し、この流路内に前記の加熱手段により加熱された熱風を通して、ガス回収室の内面を加熱させるようにすることができる。このようにすると、ガス回収室の内面だけを加熱させることができ、ガス回収室の内部全体を加熱させる場合に比べて、加熱に要するコストが低減されると共に、ガス回収室内が過剰に加熱されて、被塗布物に塗布された塗料に含まれる溶剤等が急速に蒸発されて、塗膜の表面に発泡による凹凸が生じるということもない。   In the continuous coating apparatus, when the inner surface of the gas recovery chamber is heated by the heating unit, the wall portion of the gas recovery chamber is formed in a double structure to form a flow path in the wall portion, and the flow path is formed in the flow path. The inner surface of the gas recovery chamber can be heated through hot air heated by the heating means. In this way, only the inner surface of the gas recovery chamber can be heated, so that the cost required for heating is reduced and the gas recovery chamber is excessively heated compared to the case where the entire interior of the gas recovery chamber is heated. Thus, the solvent contained in the coating material applied to the object to be coated does not rapidly evaporate, and the surface of the coating film does not become uneven due to foaming.

ここで、前記のようにガス回収室の内面を加熱させるにあたっては、被塗布物に塗布された塗料から発生したガスが、ガス回収室の内面において冷却されて、液化したり固化したりするのを適切に防止するため、ガス回収室の内面の温度を、塗料から発生するガスの沸点以上にすることが好ましい。   Here, when heating the inner surface of the gas recovery chamber as described above, the gas generated from the paint applied to the coating object is cooled on the inner surface of the gas recovery chamber and liquefied or solidified. In order to appropriately prevent this, it is preferable that the temperature of the inner surface of the gas recovery chamber be equal to or higher than the boiling point of the gas generated from the paint.

そして、前記の連続塗装装置において、前記のようにガス回収室において被塗布物に塗布された塗料から発生したガスを回収した後は、回収したガスをこのガス回収室から排気ダクトを通してガス処理設備に導いて処理させるようにすることができる。   In the continuous coating apparatus, after recovering the gas generated from the paint applied to the object to be coated in the gas recovery chamber as described above, the recovered gas is passed through the exhaust duct from the gas recovery chamber to the gas processing facility. It can be made to lead to processing.

本発明における連続塗装装置においては、前記のように塗布装置と加熱室との間や、加熱室と冷却室との間に、被塗布物に塗布された塗料から発生するガスを回収するガス回収室を設けるようにしたため、塗布装置により塗料が塗布された被塗布物を加熱室に導く途中や、加熱室において加熱された被塗布物を冷却室に導く途中において、被塗布物に塗布された塗料から発生したガスが外部に飛散するのが防止されるようになる。   In the continuous coating apparatus according to the present invention, as described above, the gas recovery for recovering the gas generated from the paint applied to the coating object between the coating apparatus and the heating chamber or between the heating chamber and the cooling chamber. Since the chamber is provided, the coating material applied by the coating device is applied to the coating material in the middle of guiding the coating material to the heating chamber or in the middle of guiding the coating material heated in the heating chamber to the cooling chamber. The gas generated from the paint is prevented from scattering to the outside.

本発明における連続塗装装置においては、前記のようにガス回収室の内面を加熱手段によって加熱させるようにしたため、被塗布物に塗布された塗料から発生したガスが、ガス回収室の内面において冷却されて、液化したり固化したりするのが防止され、液化された液化物や固化された固化物が、塗料が塗布された被塗布物の上に落下して、塗装された被塗布物の塗膜に異物が付着するのが防止されるようになる。   In the continuous coating apparatus of the present invention, the inner surface of the gas recovery chamber is heated by the heating means as described above, so that the gas generated from the paint applied to the coating object is cooled on the inner surface of the gas recovery chamber. Therefore, liquefaction or solidification is prevented, and the liquefied liquefied material or solidified solid material falls onto the coated material to which the paint is applied, and the painted material to be coated is applied. Foreign matter is prevented from adhering to the film.

本発明の一実施形態に係る連続塗装装置を示した概略説明図である。It is the schematic explanatory drawing which showed the continuous coating apparatus which concerns on one Embodiment of this invention.

以下、本発明の実施形態に係る連続塗装装置を添付図面に基づいて具体的に説明する。なお、本発明に係る連続塗装装置は、下記の実施形態に示したものに限定されず、発明の要旨を変更しない範囲において、適宜変更して実施できるものである。   Hereinafter, a continuous coating apparatus according to an embodiment of the present invention will be specifically described with reference to the accompanying drawings. In addition, the continuous coating apparatus which concerns on this invention is not limited to what was shown to the following embodiment, In the range which does not change the summary of invention, it can change and implement suitably.

ここで、図１に示す実施形態における連続塗装装置においては、金属ストリップ等の帯状体からなる被塗布物Ｘを走行させて連続塗装させるにあたり、被塗布物Ｘに塗料を塗布するロールコーターからなる塗布装置１１が設けられた塗布室１０と、塗布室１０において被塗布物Ｘに塗布された塗料から発生するガスを回収する第１ガス回収室２０と、塗料が塗布された被塗布物Ｘを加熱させる加熱室３０と、加熱室３０において加熱された後の被塗布物Ｘにおける塗料から発生するガスを回収する第２ガス回収室４０と、加熱された被塗布物Ｘを冷却させる冷却室５０を連続して設けている。   Here, the continuous coating apparatus according to the embodiment shown in FIG. 1 is composed of a roll coater that applies a coating material to the coating object X when the coating object X made of a belt-like body such as a metal strip is continuously applied. The coating chamber 10 provided with the coating device 11, the first gas recovery chamber 20 for collecting the gas generated from the coating material applied to the coating object X in the coating chamber 10, and the coating material X coated with the coating material. A heating chamber 30 for heating, a second gas recovery chamber 40 for recovering a gas generated from the paint in the coating object X after being heated in the heating chamber 30, and a cooling chamber 50 for cooling the heated coating object X. Are provided continuously.

そして、前記のように走行する被塗布物Ｘを、前記の塗布室１０、第１ガス回収室２０、加熱室３０、第２ガス回収室４０、冷却室５０の順に導いて、被塗布物Ｘを連続塗装させるようにしている。   Then, the workpiece X traveling as described above is guided in the order of the coating chamber 10, the first gas recovery chamber 20, the heating chamber 30, the second gas recovery chamber 40, and the cooling chamber 50. Is made to paint continuously.

ここで、この実施形態における連続塗装装置においては、加熱手段として熱風炉６０を設け、この熱風炉６０から熱風を給気ダクト６１に送り、この給気ダクト６１から熱風を前記の第１ガス回収室２０と加熱室３０と第２ガス回収室４０とにそれぞれ個別給気ダクト６１ａ，６１ｂ，６１ｃを通して導くようにすると共に、各個別給気ダクト６１ａ，６１ｂ，６１ｃにそれぞれ流量調整弁６２ａ，６２ｂ，６２ｃを設け、各流量調整弁６２ａ，６２ｂ，６２ｃにより第１ガス回収室２０と加熱室３０と第２ガス回収室４０とに送る熱風の流量を調整するようにしている。   Here, in the continuous coating apparatus in this embodiment, a hot air furnace 60 is provided as a heating means, hot air is sent from the hot air furnace 60 to the air supply duct 61, and the hot air is sent from the air supply duct 61 to the first gas recovery. The air supply ducts 61a, 61b, 61c are led to the chamber 20, the heating chamber 30, and the second gas recovery chamber 40, respectively, and the flow rate adjusting valves 62a, 62b are respectively supplied to the individual air supply ducts 61a, 61b, 61c. 62c, and the flow rate of hot air sent to the first gas recovery chamber 20, the heating chamber 30, and the second gas recovery chamber 40 is adjusted by the flow rate adjusting valves 62a, 62b, 62c.

また、この実施形態における連続塗装装置においては、前記の塗布室１０と第１ガス回収室２０と加熱室３０と第２ガス回収室４０において、塗料から発生したガスを回収させるにあたり、ファン７１が設けられた排気ダクト７２に対して、前記の塗布室１０と第１ガス回収室２０と加熱室３０と第２ガス回収室４０に設けられた各個別排気ダクト７２ａ，７２ｂ，７２ｃ，７２ｄを接続させ、これらの各個別排気ダクト７２ａ，７２ｂ，７２ｃ，７２ｄから導かれたガスを前記の排気ダクト７２を通してガス処理設備７０に導き、このガス処理設備７０において前記のガスから有害成分を除去する処理を行った後、処理済ガスを排気塔７３から排気させるようにしている。なお、加熱室３０における個別排気ダクト７２ｃにはガスの排気量を調整する調整弁７４を設けている。   Further, in the continuous coating apparatus in this embodiment, the fan 71 is used to recover the gas generated from the paint in the coating chamber 10, the first gas recovery chamber 20, the heating chamber 30, and the second gas recovery chamber 40. The individual exhaust ducts 72a, 72b, 72c, 72d provided in the coating chamber 10, the first gas recovery chamber 20, the heating chamber 30, and the second gas recovery chamber 40 are connected to the exhaust duct 72 provided. The gas guided from each of the individual exhaust ducts 72a, 72b, 72c, 72d is guided to the gas processing facility 70 through the exhaust duct 72, and the gas processing facility 70 removes harmful components from the gas. Then, the treated gas is exhausted from the exhaust tower 73. The individual exhaust duct 72c in the heating chamber 30 is provided with an adjustment valve 74 that adjusts the exhaust amount of gas.

ここで、この実施形態における連続塗装装置においては、前記のように走行する被塗布物Ｘを塗布室１０内に導き、この塗布室１０内に設けられた塗布装置１１によって被塗布物Ｘに塗料を塗布させると共に、この塗布室１０内において塗料から発生したガスを、前記の個別排気ダクト７２ａから排気ダクト７２を通してガス処理設備７０に導いて処理するようにしている。   Here, in the continuous coating apparatus in this embodiment, the object X traveling as described above is guided into the application chamber 10, and the object X is coated with the application apparatus 11 provided in the application chamber 10. In addition, the gas generated from the paint in the coating chamber 10 is guided from the individual exhaust duct 72a through the exhaust duct 72 to the gas processing facility 70 for processing.

そして、このように塗料が塗布された被塗布物Ｘを塗布室１０から前記の第１ガス回収室２０に導くようにしている。   The article X to which the paint is applied in this way is guided from the application chamber 10 to the first gas recovery chamber 20.

また、このように塗料が塗布された被塗布物Ｘが導かれた第１ガス回収室２０においては、被塗布物に塗布された塗料から発生するガスを回収し、このガスを前記の個別排気ダクト７２ｂから排気ダクト７２を通してガス処理設備７０に導いて処理するようにしている。ここで、この第１ガス回収室２０においては、その壁部２１を２重構造にして壁部２１内に流路２２を形成し、前記のように個別給気ダクト６１ａから第１ガス回収室２０に導かれた熱風をこの流路２２内に導き、この熱風によって第１ガス回収室２０の内面を加熱させ、その後、この熱風を、案内ダクト６１ｄを通して加熱室３０内に導くようにしている。   Further, in the first gas recovery chamber 20 to which the coating object X to which the coating material is applied is guided as described above, the gas generated from the coating material applied to the coating object is recovered, and this gas is exhausted to the individual exhaust. The gas is treated from the duct 72b through the exhaust duct 72 to the gas processing facility 70. Here, in the first gas recovery chamber 20, the wall portion 21 is formed in a double structure, and the flow path 22 is formed in the wall portion 21, and the first gas recovery chamber is passed from the individual air supply duct 61a as described above. The hot air guided to 20 is guided into the flow path 22, and the inner surface of the first gas recovery chamber 20 is heated by the hot air, and then the hot air is guided into the heating chamber 30 through the guide duct 61d. .

このようにして第１ガス回収室２０の内面を加熱させると、塗料から発生したガスがこの第１ガス回収室２０の内面において冷却されて液化したり固化したりするのが防止され、液化された液化物や固化された固化物が、塗料が塗布された被塗布物Ｘの上に落下して、塗装された被塗布物Ｘの塗膜に異物が付着するのが防止される。また、このようにすると、第１ガス回収室２０の内面だけを適切に加熱させることができ、第１ガス回収室２０全体を加熱させる場合に比べて、加熱に要するコストが低減されると共に、第１ガス回収室２０内が過剰に加熱されて、被塗布物Ｘに塗布された塗料に含まれる溶剤等が急速に蒸発されて、塗膜の表面に発泡による凹凸が生じるということもない。なお、前記のように第１ガス回収室２０の内面を加熱させるにあたっては、前記のガスが液化したり固化したりするのを防止するため、第１ガス回収室２０の内面の温度を、被塗布物に塗布された塗料から発生するガスの沸点以上にすることが好ましい。   When the inner surface of the first gas recovery chamber 20 is heated in this manner, the gas generated from the paint is prevented from being cooled and liquefied or solidified on the inner surface of the first gas recovery chamber 20, and is liquefied. The liquefied material or solidified solid material is prevented from falling onto the coating object X to which the paint is applied, and foreign matter is prevented from adhering to the coating film of the coated coating object X. Further, in this way, only the inner surface of the first gas recovery chamber 20 can be appropriately heated, and the cost required for heating is reduced as compared with the case where the entire first gas recovery chamber 20 is heated, The interior of the first gas recovery chamber 20 is not heated excessively, so that the solvent or the like contained in the coating material applied to the coating object X is rapidly evaporated, and unevenness due to foaming does not occur on the surface of the coating film. In addition, when heating the inner surface of the first gas recovery chamber 20 as described above, the temperature of the inner surface of the first gas recovery chamber 20 is adjusted to prevent the gas from being liquefied or solidified. It is preferable that the boiling point of the gas generated from the paint applied to the coated product be equal to or higher.

次いで、この第１ガス回収室２０を通して前記の被塗布物Ｘを加熱室３０に導き、この加熱室３０において前記の被塗布物Ｘを加熱させて、被塗布物Ｘに塗布された塗料を乾燥させるようにする。   Next, the coating object X is guided to the heating chamber 30 through the first gas recovery chamber 20, and the coating material X applied to the coating object X is dried by heating the coating object X in the heating chamber 30. I will let you.

ここで、この加熱室３０においては、前記の個別給気ダクト６１ｂを通して熱風を加熱室３０内に導き、この熱風により前記の被塗布物Ｘを加熱させて、被塗布物Ｘに塗布された塗料を乾燥させるようにすると共に、塗料から発生したガスを、前記の個別排気ダクト７２ｃから排気ダクト７２を通してガス処理設備７０に導いて処理するようにしている。   Here, in the heating chamber 30, hot air is guided into the heating chamber 30 through the individual air supply duct 61 b, the coating object X is heated by the hot air, and the coating material applied to the coating object X. The gas generated from the paint is led from the individual exhaust duct 72c through the exhaust duct 72 to the gas processing facility 70 for processing.

そして、このように加熱室３０において加熱された被塗布物Ｘを前記の第２ガス回収室４０に導くようにしている。   Then, the object to be coated X heated in the heating chamber 30 in this way is guided to the second gas recovery chamber 40.

ここで、この第２ガス回収室４０においては、前記の加熱室３０において十分乾燥されずに、前記の被塗布物Ｘにおける塗料から発生するガスを回収し、このガスを前記の個別排気ダクト７２ｄから排気ダクト７２を通してガス処理設備７０に導いて処理するようにしている。ここで、この第２ガス回収室４０においても、前記の第１ガス回収室２０と同様に、その壁部４１を２重構造にして壁部４１内に流路４２を形成し、前記のように個別給気ダクト６１ｃから第２ガス回収室４０に導かれた熱風をこの流路４２内に導き、この熱風によって第２ガス回収室４０の内面を加熱させ、その後、この熱風を、案内ダクト６１ｅを通して加熱室３０内に導くようにしている。   Here, in the second gas recovery chamber 40, the gas generated from the paint in the object X is recovered without being sufficiently dried in the heating chamber 30, and this gas is recovered into the individual exhaust duct 72d. Then, the gas is introduced into the gas processing facility 70 through the exhaust duct 72 and processed. Here, also in the second gas recovery chamber 40, as in the case of the first gas recovery chamber 20, the wall portion 41 is made into a double structure, and the flow path 42 is formed in the wall portion 41, as described above. Then, the hot air guided from the individual air supply duct 61c to the second gas recovery chamber 40 is guided into the flow path 42, and the inner surface of the second gas recovery chamber 40 is heated by the hot air. 61e is led into the heating chamber 30.

このようにして第２ガス回収室４０の内面を加熱させると、前記の第１ガス回収室２０の場合と同様に、塗料から発生したガスがこの第２ガス回収室４０の内面において冷却されて、液化したり固化したりするのが防止され、液化された液化物や固化された固化物が、塗料が塗布された被塗布物Ｘの上に落下して、塗装された被塗布物Ｘの塗膜に異物が付着するのが防止され、また第２ガス回収室４０の内面だけを適切に加熱させることができ、第２ガス回収室４０全体を加熱させる場合に比べて、加熱に要するコストが低減される。なお、前記のように第２ガス回収室４０の内面を加熱させるにあたっては、前記の第１ガス回収室２０の場合と同様に、前記のガスが液化したり固化したりするのを防止するため、第２ガス回収室４０の内面の温度を、被塗布物に塗布された塗料から発生するガスの沸点以上にすることが好ましい。   When the inner surface of the second gas recovery chamber 40 is heated in this manner, the gas generated from the paint is cooled on the inner surface of the second gas recovery chamber 40 as in the case of the first gas recovery chamber 20. , Liquefaction or solidification is prevented, and the liquefied liquefied material or solidified solid material falls onto the coated material X to which the paint is applied, and the coated coated material X Foreign matter is prevented from adhering to the coating film, and only the inner surface of the second gas recovery chamber 40 can be appropriately heated. Compared to heating the entire second gas recovery chamber 40, the cost required for heating is reduced. Is reduced. In addition, when heating the inner surface of the second gas recovery chamber 40 as described above, as in the case of the first gas recovery chamber 20, the gas is prevented from being liquefied or solidified. The temperature of the inner surface of the second gas recovery chamber 40 is preferably set to be equal to or higher than the boiling point of the gas generated from the paint applied to the object to be coated.

そして、この第２ガス回収室４０を通して前記の被塗布物Ｘを冷却室５０内に導き、加熱室３０において加熱された被塗布物Ｘをこの冷却室５０内において冷却させ、このように冷却された被塗布物Ｘを冷却室５０から送り出して、被塗布物Ｘを連続塗装させるようにする。   Then, the coating object X is guided into the cooling chamber 50 through the second gas recovery chamber 40, and the coating object X heated in the heating chamber 30 is cooled in the cooling chamber 50, and thus cooled. The coated object X is sent out from the cooling chamber 50 so that the coated object X is continuously coated.

なお、この実施形態における連続塗装装置においては、被塗布物Ｘに塗布された塗料から発生するガスを回収するガス回収室として、塗布室１０と加熱室３０との間に第１ガス回収室２０を設けると共に、加熱室３０と冷却室５０との間に第２ガス回収室４０を設けるようにしたが、第１ガス回収室２０と第２ガス回収室４０との何れか一方だけを設けるようにすることもできる。   In the continuous coating apparatus in this embodiment, the first gas recovery chamber 20 is provided between the coating chamber 10 and the heating chamber 30 as a gas recovery chamber for recovering the gas generated from the paint applied to the workpiece X. In addition, the second gas recovery chamber 40 is provided between the heating chamber 30 and the cooling chamber 50. However, only one of the first gas recovery chamber 20 and the second gas recovery chamber 40 is provided. It can also be.

また、第１ガス回収室２０の内面及び第２ガス回収室４０の内面を加熱させる方法も、この実施形態に示したものに限定されず、例えば、第１ガス回収室２０の壁部２１や第２ガス回収室４０の壁部４１にヒーター等の加熱装置（図示せず）を内蔵させるようにすることもできる。   Further, the method of heating the inner surface of the first gas recovery chamber 20 and the inner surface of the second gas recovery chamber 40 is not limited to the one shown in this embodiment. For example, the wall portion 21 of the first gas recovery chamber 20 A heating device (not shown) such as a heater may be incorporated in the wall 41 of the second gas recovery chamber 40.

１０ ：塗布室
１１ ：塗布装置
２０ ：第１ガス回収室
２１ ：壁部
２２ ：流路
３０ ：加熱室
４０ ：第２ガス回収室
４１ ：壁部
４２ ：流路
５０ ：冷却室
６０ ：熱風炉（加熱手段）
６１ ：給気ダクト
６１ａ，６１ｂ，６１ｃ ：個別給気ダクト
６１ｄ，６１ｅ ：案内ダクト
６２ａ，６２ｂ，６２ｃ ：流量調整弁
７０ ：ガス処理設備
７１ ：ファン
７２ ：排気ダクト
７２ａ，７２ｂ，７２ｃ，７２ｄ ：個別排気ダクト
７３ ：排気塔
７４ ：調整弁
Ｘ ：被塗布物 10: coating chamber 11: coating device 20: first gas recovery chamber 21: wall portion 22: channel 30: heating chamber 40: second gas recovery chamber 41: wall portion 42: channel 50: cooling chamber 60: hot stove (Heating means)
61: Air supply ducts 61a, 61b, 61c: Individual air supply ducts 61d, 61e: Guide ducts 62a, 62b, 62c: Flow rate adjusting valve 70: Gas processing equipment 71: Fan 72: Exhaust ducts 72a, 72b, 72c, 72d: Individual exhaust duct 73: Exhaust tower 74: Control valve X: Object to be coated

Claims (4)

帯状体からなる被塗布物を走行させ、この被塗布物に塗布装置によって塗料を塗布し、このように塗料が塗布された被塗布物を加熱させる加熱室と、加熱された被塗布物を冷却させる冷却室とに導いて、被塗布物を連続塗装させる連続塗装装置において、被塗布物に塗布された塗料から発生するガスを回収するガス回収室を、前記の塗布装置若しくは塗布室内に設けた塗布装置と加熱室との間、前記の加熱室と冷却室との間の少なくとも一方に設けると共に、前記のガス回収室の内面を加熱させる加熱手段を設けたことを特徴とする連続塗装装置。   A coated object made of a belt-shaped body is run, and a coating material is applied to the coated object by a coating apparatus, and a heating chamber that heats the coated object coated with the coating material in this way, and the heated coated object is cooled. In the continuous coating apparatus that guides to the cooling chamber and continuously coats the coating object, a gas recovery chamber that collects gas generated from the paint applied to the coating object is provided in the coating apparatus or the coating chamber. A continuous coating apparatus characterized in that a heating means is provided between at least one of the coating apparatus and the heating chamber, between the heating chamber and the cooling chamber, and heating the inner surface of the gas recovery chamber. 請求項１に記載した連続塗装装置において、前記のガス回収室の壁部を２重構造にして壁部内に流路を形成し、この流路内に前記の加熱手段により加熱された熱風を通して、ガス回収室の内面を加熱させることを特徴とする連続塗装装置。   In the continuous coating apparatus according to claim 1, a wall portion of the gas recovery chamber is formed in a double structure to form a flow path in the wall portion, and hot air heated by the heating means is passed through the flow path, A continuous coating apparatus that heats the inner surface of a gas recovery chamber. 請求項１又は請求項２に記載した連続塗装装置において、前記のガス回収室の内面を加熱させる温度を、被塗布物に塗布された塗料から発生するガスの沸点以上にすることを特徴とする連続塗装装置。   3. The continuous coating apparatus according to claim 1, wherein the temperature at which the inner surface of the gas recovery chamber is heated is equal to or higher than the boiling point of the gas generated from the paint applied to the coating object. Continuous coating equipment. 請求項１〜請求項３の何れか１項に記載した連続塗装装置において、前記のガス回収室において回収したガスを、排気ダクトを通してガス処理設備に導いて処理することを特徴とする連続塗装装置。   The continuous coating apparatus according to any one of claims 1 to 3, wherein the gas recovered in the gas recovery chamber is led to a gas processing facility through an exhaust duct for processing. .
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KR1020177020976A KR20180012239A (en) 2015-05-27 2016-04-06 Continuous Coating Device
CN201680008955.9A CN107206414A (en) 2015-05-27 2016-04-06 Continuous painting device
PCT/JP2016/061279 WO2016189977A1 (en) 2015-05-27 2016-04-06 Continuous coating device
TW105112112A TW201700185A (en) 2015-05-27 2016-04-19 Continuous coating device

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