JPH03275162A - Coating equipment - Google Patents
Coating equipmentInfo
- Publication number
- JPH03275162A JPH03275162A JP2072167A JP7216790A JPH03275162A JP H03275162 A JPH03275162 A JP H03275162A JP 2072167 A JP2072167 A JP 2072167A JP 7216790 A JP7216790 A JP 7216790A JP H03275162 A JPH03275162 A JP H03275162A
- Authority
- JP
- Japan
- Prior art keywords
- air
- zone
- discharge
- clean air
- flash
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000011248 coating agent Substances 0.000 title claims abstract description 28
- 238000000576 coating method Methods 0.000 title claims abstract description 28
- 239000003973 paint Substances 0.000 claims description 22
- 238000010438 heat treatment Methods 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 239000002904 solvent Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000010422 painting Methods 0.000 description 20
- 239000000428 dust Substances 0.000 description 10
- 230000001143 conditioned effect Effects 0.000 description 7
- 239000007921 spray Substances 0.000 description 6
- 238000007664 blowing Methods 0.000 description 5
- 238000001035 drying Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000037303 wrinkles Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 238000007592 spray painting technique Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material
- B05B14/40—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths
- B05B14/46—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths by washing the air charged with excess material
- B05B14/468—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths by washing the air charged with excess material with scrubbing means arranged below the booth floor
Landscapes
- Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
- Coating Apparatus (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、被塗物の表面に形成された塗料の塗膜中から
水分や溶剤を蒸発させるフラッシュオフゾーンが設けら
れた塗装設備に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a coating equipment provided with a flash-off zone for evaporating water and solvent from a paint film formed on the surface of an object to be coated.
塗装ブース内で粘性の低い水性塗料のスプレー塗装を行
う場合は、特公昭５２−３０１７０号公報に記載された
如く、スプレーゾーンとフラッシュオフゾーンを交互に
設け、スプレー工程とフラッシュオフ工程を数回繰り返
すことにより、塗料の流れやタレが生しないようにしな
がら水性塗料を塗り重ねて、目的とする塗膜厚を得るよ
うにしている。When spray painting with a water-based paint with low viscosity in a painting booth, as described in Japanese Patent Publication No. 52-30170, spray zones and flash-off zones are provided alternately, and the spray process and flash-off process are repeated several times. By repeating this process, the water-based paint is applied over and over again while ensuring that the paint does not run or sag, thereby achieving the desired film thickness.
また、塗装ブースと乾燥炉との間にもフラッシュオフゾ
ーンを設けて、乾燥炉内で焼付する塗膜にワキなどの塗
膜不良が生ずることを防止している。A flash-off zone is also provided between the coating booth and the drying oven to prevent defects such as wrinkles from forming on the coating film baked in the drying oven.
このフラッシュオフゾーンは、被塗物に４０〜９０°Ｃ
の温風を吹き掛けたり、輻射線加熱板から放射される輻
射線で被塗物を加熱して、塗膜中の水分や溶剤を蒸発さ
せるようになっているが、温風の場合は、その温風中に
含まれたゴξや埃が塗膜表面に付着して塗装品質を損ね
るおそれがあり、また、輻射線加熱板の場合は、被塗物
の加熱ムラにより塗膜の乾燥状態が不均一になって部分
的にタレやワキを生ずるおそれがあった。This flash-off zone is 40 to 90°C
The coating material is heated by blowing hot air or using radiation emitted from a radiation heating plate to evaporate the water and solvent in the coating film, but in the case of hot air, The dirt and dust contained in the hot air may adhere to the surface of the paint film and impair the quality of the paint.In addition, in the case of a radiant heating plate, uneven heating of the object may cause the drying of the paint film. There was a risk that the coating would become uneven and cause sagging or wrinkles in some areas.
なお、特開昭５１−９８７４８号公報には、塗装ブース
内、あるいは塗装ブースと乾燥炉との間に、清浄な空調
空気で戒る温風のエアカーテンを形成することにより、
被塗物の塗膜表面にゴミや埃を付着させることなく、そ
の塗膜中から水分や溶剤を蒸発させるフラッシュオフゾ
ーンも記載されているが、この場合に、温風のエアカー
テンを形成する空調空気は、風速１〜６ｍ１５ｅＣ２温
度３０〜６０°Ｃ３湿度５０％ＲＨ以下とされているの
で、プレナムチャンバからフィルタを通して塗装ブース
内のほぼ全域に風速０．２〜０．５ｍ／ｓｅｃ。In addition, Japanese Patent Application Laid-open No. 51-98748 discloses that by forming an air curtain of warm air inside the painting booth or between the painting booth and the drying oven,
A flash-off zone is also described that evaporates water and solvent from the coating film without causing dirt or dust to adhere to the coating surface of the object to be coated. Since the conditioned air has a wind speed of 1 to 6 m/sec, a temperature of 30 to 60°C, and a humidity of 50% RH or less, the air flows from the plenum chamber through a filter to almost the entire area inside the painting booth at a wind speed of 0.2 to 0.5 m/sec.
温度２５°Ｃ前後、湿度７０〜８０％ＲＨ程度の空調空
気を導入させる空調装置（特開昭６２−６８５６６号公
報参照）とは別個に、他の空調装置が必要となって、そ
の設備費が嵩むと共に、塗装ブース内における給排気バ
ランスの調整が非常に難しくなるという問題がある。In addition to the air conditioner that introduces conditioned air at a temperature of around 25°C and a humidity of about 70-80% RH (see Japanese Patent Application Laid-open No. 62-68566), another air conditioner is required, which increases the equipment cost. In addition, there is a problem that it becomes extremely difficult to adjust the air supply and exhaust balance within the paint booth.
そこで本発明は、高価な空調装置を増設することなく、
ゴごや埃を含まない清浄空気で成る温風が得られるよう
にすると共に、その温風をフラッシュオフゾーンに導入
しても、塗装ブースの給排気バランスが崩れないように
することを技術的課題としている。Therefore, the present invention eliminates the need to add expensive air conditioning equipment.
We have developed a technology to ensure that hot air consisting of clean air that does not contain dirt and dust is obtained, and that even if the warm air is introduced into the flash-off zone, the supply and exhaust balance of the paint booth will not be disrupted. This is an issue.
この課題を解決するために、本発明は、被塗物の表面に
形成された塗料の塗膜に温風を吹き掛けて当該塗膜中か
ら水分や溶剤を蒸発させるフラッシュオフゾーンが設け
られた塗装設備において、プレナムチャンバからフィル
タを通じて塗装ブース内に導入される清浄空気の一部を
前記フィルタの下方で吸引して加熱装置に送る吸引ダク
トと、その加熱装置で所要温度に加熱した清浄空気をフ
ラッシュオフゾーンに導入する吐出ダクトが配設されて
いることを特徴とする。In order to solve this problem, the present invention is provided with a flash-off zone that blows warm air onto the paint film formed on the surface of the object to be coated to evaporate moisture and solvent from the paint film. In painting equipment, there is a suction duct which sucks a part of the clean air introduced into the painting booth from the plenum chamber through the filter below the filter and sends it to the heating device, and the cleaning air is heated to a required temperature by the heating device. It is characterized by being provided with a discharge duct that leads into the flash-off zone.
本発明によれば、プレナムチャンバからフィルタを通し
て塗装ブース内に導入される清浄空気の一部が、所要温
度の温風となってフラッシュオフゾーンに導入されるの
で、その温風の導入によって塗装ブース内の給排気バラ
ンスを崩すおそれがない。According to the present invention, a part of the clean air introduced into the paint booth from the plenum chamber through the filter becomes warm air at the required temperature and is introduced into the flash-off zone, so that the warm air is introduced into the paint booth. There is no risk of disrupting the internal air supply and exhaust balance.
また、温風中には、ゴミや埃が含まれていないから、塗
装品質を損なうおそれもない。Furthermore, since the hot air does not contain dirt or dust, there is no risk of degrading the quality of the coating.
更に、温風は、プレナムチャンバから塗装ブース内に導
入される清浄空気を加熱装置で加熱して得られるので、
プレナムチャンバに空調空気を供給する空調装置とは別
に、フラッシュオフゾーンに温風を供給するための空調
装置を設ける必要がなく、設備費も低減される。Furthermore, the hot air is obtained by heating clean air introduced into the painting booth from the plenum chamber with a heating device.
There is no need to provide an air conditioner for supplying warm air to the flash-off zone in addition to an air conditioner for supplying conditioned air to the plenum chamber, and equipment costs are also reduced.
以下、本発明の実施例を図面に基づいて具体的に説明す
る。Embodiments of the present invention will be specifically described below based on the drawings.
第１図は本発明による塗装設備の一例を示す正面図、第
２図はその側面図である。FIG. 1 is a front view showing an example of a coating equipment according to the present invention, and FIG. 2 is a side view thereof.
本例では、水性塗料の塗り重ねを行うトンネル形の塗装
ブース１内にフラッシュオフゾーンＦが設けられた塗装
設備を示し、空調装置２の給気ファン３によってプレナ
ムチャンバ４の動圧室４ａ内に供給された空調空気が、
整流フィルタ５を通じて静圧室４ｂ内に均一に導入され
、当該静圧室４ｂ内に導入される空調空気が、フィルタ
６を通して除塵された清浄空気となって塗装ブース１内
のフラッシュオフゾーンＦやその前後に設けたスプレー
ゾーンに所定の風速で導入されるようになっている。This example shows a painting facility in which a flash-off zone F is provided in a tunnel-shaped paint booth 1 in which water-based paint is repeatedly applied. The conditioned air supplied to
The conditioned air is uniformly introduced into the static pressure chamber 4b through the rectifying filter 5, and the air conditioned air introduced into the static pressure chamber 4b becomes clean air from which dust is removed through the filter 6, and is used in the flash-off zone F and the like in the painting booth 1. The wind is introduced at a predetermined speed into spray zones provided before and after the spray zone.
そして、塗装ブース１内に導入された清浄空気は、スプ
レーゾーンに生じた塗料ごスト等と共に床下のごスト処
理室７に吸引され、当該くスト処理室７内に設けたベン
チュリー装置８で塗料くスト等を除去した後、排気ファ
ン９で外部に排出されるようになっている。The clean air introduced into the painting booth 1 is sucked into the dust treatment chamber 7 under the floor together with the paint dust generated in the spray zone, and the venturi device 8 installed in the dust treatment chamber 7 is used to remove the paint. After removing the waste, etc., it is discharged to the outside by an exhaust fan 9.
また、フラッシュオフゾーンＦには、フィルタ６を通し
て塗装ブース１内に導入される清浄空気を吸引する吸引
ダクト１０と、コンヘア台車１１に搭載して搬送される
被塗物Ｗが通り抜ける門型の温風吹出チャンバ１２が配
設されている。In addition, the flash-off zone F includes a suction duct 10 that sucks clean air introduced into the painting booth 1 through a filter 6, and a gate-shaped heated A wind blowing chamber 12 is provided.
吸引ダクト１０は、フィルタ６の下方に沿って吸引口が
開口されると共に、塗装ブース１外に設置したブロワ１
３の吸引側に接続されて、フィルタ６を通して塗装ブー
ス１内のフラッシュオフゾーンＦに導入される清浄空気
を吸引し、その清浄空気を吸引ダクト１０とブロワ１３
との間に介装された加熱装置１４に送るようになってい
る。The suction duct 10 has a suction port opened along the lower part of the filter 6, and a blower 1 installed outside the coating booth 1.
3 is connected to the suction side of the paint booth 1 to suck clean air introduced into the flash-off zone F in the painting booth 1 through the filter 6, and the clean air is connected to the suction duct 10 and the blower 13.
The water is sent to a heating device 14 interposed between the two.
加熱装置１４で所要温度に加熱された清浄空気は、ブロ
ワ■３の吐出側に接続された吐出ダクト１５を通じて温
風吹出チャンバ１２内に導入され、当該チャンバ１２に
被塗物Ｗを囲繞するように設けられた複数の吐出ノズル
１６，１６−から吹き出されるようになっている。The clean air heated to a required temperature by the heating device 14 is introduced into the warm air blowing chamber 12 through the discharge duct 15 connected to the discharge side of the blower 3, and is introduced into the chamber 12 so as to surround the object W to be coated. It is blown out from a plurality of discharge nozzles 16, 16- provided in the.
なお、加熱装置１４は、華気の熱を放出するエロフィン
ヒータ１７を使用し、当該エロフィンヒータ１７に蒸気
を供給するバルブ１日を、吐出ダクト１５からフラッシ
ュオフゾーンＦに導入される温風の温度を検出する温度
センサ１９が出力する温度検出信号により開閉制御して
、温風の温度を最適にコントロールする。The heating device 14 uses an Erofin heater 17 that emits heat from the air, and a valve for supplying steam to the Erofin heater 17 is connected to the temperature introduced from the discharge duct 15 into the flash-off zone F. Opening/closing control is performed based on a temperature detection signal output by a temperature sensor 19 that detects the temperature of the wind, thereby optimally controlling the temperature of the hot air.
また、ブロワ１３は、例えば、門型の温風吹出チャンバ
１２を通過する被塗物Ｗの大小等に応して、吐出ノズル
１６．１６−から吹き出す温風の風量・風速を最適に調
節するため、インバータモータ２０によってその回転数
が可変制御される。Further, the blower 13 optimally adjusts the volume and speed of hot air blown from the discharge nozzle 16, 16-, depending on the size of the object W passing through the gate-shaped warm air blowing chamber 12, for example. Therefore, the rotation speed is variably controlled by the inverter motor 20.
しかして、プレナムチャンバ４からフィルタ６を通して
塗装ブース１内のフラッシュオフゾーンＦに導入される
清浄空気は、フィルタ６の下方に沿って配設した吸引ダ
クト１０に吸引されて、塗装ブース１外に設けた加熱装
置■４に送られ、当該加熱装置１４のエロフィンヒータ
１７が放出する熱で加熱されて、５０〜６０’Ｃの温風
となり、その温風が、吐出ダクト１５を通して塗装ブー
ス１内のフラッシュオフゾーンＦに設けた温風吹出チャ
ンバ１２内に導入されて、当該チャンバ１２の吐出ノズ
ル１６．１６−から被塗物Ｗに向かって吹き掛けられる
。Thus, the clean air introduced from the plenum chamber 4 through the filter 6 into the flash-off zone F inside the painting booth 1 is sucked into the suction duct 10 disposed along the lower part of the filter 6, and is then pumped out of the painting booth 1. The heated air is sent to the installed heating device 4, heated by the heat emitted by the Erofin heater 17 of the heating device 14, and becomes hot air of 50 to 60'C.The hot air is sent to the coating booth 1 through the discharge duct 15. The heated air is introduced into a hot air blowing chamber 12 provided in a flash-off zone F of the interior of the room, and is sprayed from a discharge nozzle 16, 16- of the chamber 12 toward the object W to be coated.
これにより、被塗物Ｗの表面に形成された水性塗料の塗
膜中から、水分や溶剤が蒸発して、塗料の流れやタレが
防止される。As a result, water and solvent evaporate from the water-based paint film formed on the surface of the object W to be coated, thereby preventing the paint from flowing or dripping.
また、被塗物Ｗの表面に吹き掛ける温風は、プレナムチ
ャンバ４からフィルタ６を通じて塗装ブース■内に導入
される清浄空気を加熱して得たものであるから、給気フ
ァン３と排気ファン９によって調整する塗装ブースｌ内
の給排気バランスを崩すおそれがなく、設備費も低減さ
れる。In addition, since the hot air blown onto the surface of the workpiece W is obtained by heating the clean air introduced from the plenum chamber 4 through the filter 6 into the painting booth ■, the air supply fan 3 and the exhaust fan There is no risk of disrupting the supply/exhaust balance within the painting booth l, which is adjusted by step 9, and equipment costs are also reduced.
また、その温風には、ゴξや埃が含まれておらず、被塗
物Ｗの塗装品質を損なうおそれもない。Further, the warm air does not contain dirt or dust, and there is no risk of impairing the quality of coating the object W to be coated.
更に、実施例の如く、温風の加熱装置１４として蒸気の
熱を放出するエロフィンヒータ１７を使用すると、防爆
対策が不要となり、設備費が一層低減される。Furthermore, if the Erofin heater 17, which emits the heat of steam, is used as the hot air heating device 14 as in the embodiment, there is no need for explosion-proof measures, and the equipment cost is further reduced.
なお、フラッシュオフゾーンＦは、塗装ブース１内のス
プレーゾーン間に設けるものに限らず、塗装ブース１と
乾燥炉との間に設けるものも含まれる。Note that the flash-off zone F is not limited to one provided between spray zones in the coating booth 1, but also includes one provided between the coating booth 1 and the drying oven.
また、吐出ダクト１５を通してフラッシュオフゾーンＦ
に導入する温風は、被塗物Ｗを囲繞するように設けられ
た温風吹出チャンバ１２の吐出ノズル１６．１６−から
吹き出す場合に限らず、被塗物Ｗの上方に設けられたフ
ードから下向きに吹き出すようにしてもよい。In addition, the flash-off zone F is provided through the discharge duct 15.
The hot air introduced into the workpiece W is not limited to being blown out from the discharge nozzle 16. It may also be configured to blow out downward.
以上述べたように、本発明によれば、フラッシュオフゾ
ーンに導入されて被塗物の塗膜中から水分や溶剤を蒸発
させる温風が、プレナムチャンバからフィルタを通して
塗装ブース内に導入される清浄空気を加熱して得られた
ものであるから、これを被塗物に吹き掛けても、当該被
塗物の塗膜表面にゴξや埃が付着して塗装品質を損なう
おそれはない。As described above, according to the present invention, hot air is introduced into the flash-off zone to evaporate water and solvent from the coating film of the object to be coated, and the hot air is introduced into the coating booth from the plenum chamber through the filter. Since it is obtained by heating air, even if it is sprayed onto an object to be coated, there is no fear that dirt or dust will adhere to the surface of the coating of the object and impair the quality of the coating.
また、プレナムチャンバから塗装ブース内に導入される
清浄空気を加熱して得られた温風が、塗装ブースのフラ
ッシュオフゾーンに導入されれば、塗装ブースの給排気
バランスを崩すおそれもない。Further, if the warm air obtained by heating the clean air introduced into the painting booth from the plenum chamber is introduced into the flash-off zone of the painting booth, there is no risk of disrupting the supply/exhaust balance of the painting booth.
更に、温風を得るために、プレナムチャンバに空調空気
を供給する空調装置とは別個の空調装置を設ける必要が
ないから、設備費も低減される。Furthermore, equipment costs are also reduced because there is no need to provide a separate air conditioner from the one that supplies conditioned air to the plenum chamber to obtain the warm air.
第１図は本発明による塗装設備の一例を示す正面図、第
２図はその側面図である。
０
符号の説明
１−塗装ブース、Ｆ−フラッシュオフゾーン、４−プレ
ナムチャンバ、６−フィルタ、１〇−吸引ダクト、１４
−加熱装置、
１５−吐出ダクト、ｗ−被塗物。FIG. 1 is a front view showing an example of a coating equipment according to the present invention, and FIG. 2 is a side view thereof. 0 Explanation of symbols 1-painting booth, F-flash-off zone, 4-plenum chamber, 6-filter, 10-suction duct, 14
- heating device, 15- discharge duct, w- object to be coated.
Claims (1)
き掛けて当該塗膜中から水分や溶剤を蒸発させるフラッ
シュオフゾーン（Ｆ）が設けられた塗装設備において、
プレナムチャンバ（４）からフィルタ（６）を通じて塗
装ブース（１）内に導入される清浄空気の一部を前記フ
ィルタ（６）の下方で吸引して加熱装置（１４）に送る
吸引ダクト（１０）と、その加熱装置（１４）で所要温
度に加熱した清浄空気をフラッシュオフゾーン（Ｆ）に
導入する吐出ダクト（１５）が配設されていることを特
徴とする塗装設備。In a coating equipment equipped with a flash-off zone (F) that blows warm air onto a paint film formed on the surface of an object to be coated (W) to evaporate water and solvent from the paint film,
A suction duct (10) sucks a part of the clean air introduced into the coating booth (1) from the plenum chamber (4) through the filter (6) below the filter (6) and sends it to the heating device (14). and a discharge duct (15) for introducing clean air heated to a required temperature by the heating device (14) into the flash-off zone (F).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2072167A JP2515907B2 (en) | 1990-03-23 | 1990-03-23 | Painting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2072167A JP2515907B2 (en) | 1990-03-23 | 1990-03-23 | Painting equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03275162A true JPH03275162A (en) | 1991-12-05 |
| JP2515907B2 JP2515907B2 (en) | 1996-07-10 |
Family
ID=13481412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2072167A Expired - Lifetime JP2515907B2 (en) | 1990-03-23 | 1990-03-23 | Painting equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2515907B2 (en) |
-
1990
- 1990-03-23 JP JP2072167A patent/JP2515907B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2515907B2 (en) | 1996-07-10 |
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