JP3384754B2 - Apparatus and method for coating building members - Google Patents
Apparatus and method for coating building membersInfo
- Publication number
- JP3384754B2 JP3384754B2 JP33370898A JP33370898A JP3384754B2 JP 3384754 B2 JP3384754 B2 JP 3384754B2 JP 33370898 A JP33370898 A JP 33370898A JP 33370898 A JP33370898 A JP 33370898A JP 3384754 B2 JP3384754 B2 JP 3384754B2
- Authority
- JP
- Japan
- Prior art keywords
- booth
- coating
- coated
- air
- building member
- 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
Links
- 238000000576 coating method Methods 0.000 title claims description 123
- 239000011248 coating agent Substances 0.000 title claims description 110
- 238000000034 method Methods 0.000 title claims description 34
- 239000000463 material Substances 0.000 claims description 135
- 239000007921 spray Substances 0.000 claims description 36
- 239000007788 liquid Substances 0.000 claims description 35
- 238000005192 partition Methods 0.000 claims description 34
- 239000011247 coating layer Substances 0.000 claims description 31
- 239000010408 film Substances 0.000 claims description 31
- 238000005507 spraying Methods 0.000 claims description 22
- 239000004568 cement Substances 0.000 claims description 12
- 239000011121 hardwood Substances 0.000 claims description 8
- 238000000638 solvent extraction Methods 0.000 claims description 7
- 239000010410 layer Substances 0.000 claims description 3
- 239000010409 thin film Substances 0.000 claims description 2
- 239000003973 paint Substances 0.000 description 84
- 230000006837 decompression Effects 0.000 description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 16
- 230000000052 comparative effect Effects 0.000 description 10
- 239000002023 wood Substances 0.000 description 10
- 239000002904 solvent Substances 0.000 description 6
- 230000035699 permeability Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 239000000839 emulsion Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229920000180 alkyd Polymers 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 239000011178 precast concrete Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000007592 spray painting technique Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
Landscapes
- Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、建築部材の塗装
方法及び塗装装置に係り、特には、表面に凹凸模様のあ
るＡＬＣや硬質木片セメント板等の外壁材の表面に塗料
を塗布する際に用いて好適な建築部材の塗装方法及び塗
装装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coating method for a building member and a coating apparatus, and more particularly, to a coating material applied to the surface of an outer wall material such as ALC or hard wood chip cement board having an uneven pattern on the surface. The present invention relates to a coating method and a coating device for a building member suitable for use.
【０００２】[0002]
【従来の技術】従来、建物の外壁としては、土等を塗っ
た土壁等のように、建築現場で施工する外壁が多かった
が、最近では、外壁材を工場等で生産し、この外壁材を
建物の外壁部分に取り付けた外壁が、速く、均質に、し
かも、美麗に施工できるので広く普及してきている。工
場生産される外壁材としては、ＡＬＣ（Autoclaved Lig
ht-weight Concrete）製の外壁材、プレキャストコンク
リート製の外壁材、硬質木片セメント板製の外壁材等が
多い。特に、ＡＬＣ製の外壁材は、外観がプレキャスト
コンクリート製の外壁材に似ていて、しかも、軽く施工
し易いので、多く生産されている。そして、住宅等の建
物の外壁材としては、最近、彫りの深い凹凸模様を設け
たものが、外観が豪華であるので、施主に好まれてい
る。2. Description of the Related Art Conventionally, as an outer wall of a building, there have been many outer walls such as a soil wall coated with soil, etc., which have been constructed at a construction site. The outer wall, which is made by attaching wood to the outer wall of a building, has become popular because it can be installed quickly, uniformly, and beautifully. ALC (Autoclaved Lig
ht-weight concrete) outer wall material, precast concrete outer wall material, hard wood chip cement board outer wall material. In particular, ALC outer wall materials are produced in large numbers because they have an appearance similar to that of precast concrete, and are light and easy to construct. As an outer wall material for a building such as a house, a material having a deeply carved uneven pattern has recently been favored by the owner because of its luxurious appearance.
【０００３】このような外壁材では、通常、外観を良く
したり水分を吸収しないようにするために、表面に塗料
が塗布される。特に、ＡＬＣ製の外壁材は、内部に多く
の気泡があり、この内部の気泡に雨水等の水分が浸透
し、冬期にこの水分が凍結し外壁材を破壊する、所謂凍
害が発生するので、この凍害を防止するために、必ず透
水性の小さい塗料を塗布することが行われる。また、硬
質木片セメント板製の外壁材でも、表面を切削して彫り
の深い凹凸模様を設けると、切削した部分に木片が顕
れ、この木片が雨水等の水分を吸収して朽ち、冬期に
は、この水分が凍結して外壁材を破壊するので、塗料を
塗布することが必要である。従来から、このような外壁
材の表面に塗料を塗布する塗装方法としては、刷毛塗り
方法、スプレー塗装方法、ロールコーター、フローコー
ター、デッピング方法等がある。A coating material is usually applied to the surface of such an outer wall material in order to improve its appearance and prevent it from absorbing moisture. In particular, the ALC outer wall material has many air bubbles inside, and moisture such as rainwater permeates into the air bubbles inside, so that this water freezes in winter and destroys the outer wall material, so-called frost damage occurs. In order to prevent this frost damage, it is always necessary to apply a paint having low water permeability. In addition, even with an outer wall material made of hard wood cement board, if the surface is cut and a deeply carved uneven pattern is provided, the wood piece appears in the cut part, this wood piece absorbs moisture such as rainwater and decays, and in the winter season However, it is necessary to apply paint because this water freezes and destroys the outer wall material. Conventionally, as a coating method for coating the surface of such an outer wall material, there are a brush coating method, a spray coating method, a roll coater, a flow coater, a depping method, and the like.
【０００４】刷毛塗り方法は、塗料を付着させた刷毛で
外壁材の表面を撫でて塗布する方法で、最も原始的な方
法である。この刷毛塗り方法は、刷毛を塗料溜に入れて
刷毛に塗料を付着させ、この刷毛を外壁材表面を撫でて
塗布するので、少量生産の外壁材や外壁材の塗装面を修
理する場合に適しているが、大量生産に適していないた
め、外壁材の大量生産工程では採用されてない。The brush application method is the most primitive method in which the surface of the outer wall material is stroked with a brush to which a paint is applied. This brush application method is suitable for repairing a small amount of outer wall material or the painted surface of the outer wall material because the brush is put in the paint reservoir and the paint is applied to the brush and the outer wall material surface is stroked to apply. However, since it is not suitable for mass production, it is not used in the mass production process of outer wall materials.
【０００５】スプレー塗装方法は、スプレーの先端のノ
ズルから塗料を吹き出させ、この吹き出た塗料を外壁材
の表面に吹き付けて塗装する方法であり、エアスプレー
方式とエアレススプレー方式とがある（例えば、特開平
２−１１９９６４号公報等参照）。エアスプレー方式
は、スプレーガンの先端のノズルに通ずる圧縮空気の通
路と、塗料溜からこの圧縮空気の通路に通ずる通路とか
らなるものであって、圧縮空気の通路を通してエアガン
の先端のノズルに圧縮空気を通過させると、この圧縮空
気の通路が減圧になり、この圧縮空気の通路に通ずる通
路を通して塗料溜の塗料が吸い込まれ、この吸い込んだ
塗料と空気とが一緒になってノズルから出て塗装する方
法である。エアレススプレー方式とは、塗料溜からスプ
レーガンの先端のノズルに通ずる通路が設けられてい
て、塗料溜の中に圧縮空気を導入すると、この圧縮空気
の圧力により塗料溜の塗料が通路に押し出され、スプレ
ーガンの先端のノズルから塗料が吹き出て塗装する方法
である。このスプレー塗装方法は塗料を外壁材の表面に
吹き付けることができるので、彫りの深い外壁材でも塗
装でき、様々な外壁材の塗装に採用されている。The spray coating method is a method of spraying paint from a nozzle at the tip of the spray and spraying the sprayed paint on the surface of the outer wall material, and there are an air spray method and an airless spray method (for example, See Japanese Patent Application Laid-Open No. 2-119964, etc.). The air spray system consists of a compressed air passage leading to the nozzle at the tip of the spray gun and a passage leading from the paint reservoir to this compressed air passage. When air is passed, the compressed air passage is decompressed, and the paint in the paint reservoir is sucked through the passage leading to the compressed air passage, and the sucked paint and air come out from the nozzle and paint. Is the way to do it. The airless spray system has a passage from the paint reservoir to the nozzle at the tip of the spray gun.When compressed air is introduced into the paint reservoir, the pressure of the compressed air pushes the paint from the paint reservoir into the passage. The method is to paint by spraying the paint from the nozzle at the tip of the spray gun. Since this spray painting method can spray the paint on the surface of the outer wall material, it can be applied to even deeply carved outer wall materials, and is used for painting various outer wall materials.
【０００６】ロールコーターは、回転しているロールの
表面の一部を塗料溜の中に漬けてロール表面に塗料を付
着させ、ロールの表面に付着した塗料を外壁材の表面に
移動させるものである。このロールコーターには、ロー
ルの回転方向と外壁材の通過方向とが同じ方式と反対の
方式とがある。このロールコーターは、ロールに付着し
た塗料を外壁材の表面に移動させるため、表面が平滑な
外壁材の場合には使用されるが、彫りの深い外壁材等の
ように凹部のある外壁材では凹部に塗料を塗布すること
ができない。したがって、凹部のある外壁材んぽ塗装に
は採用されてない。[0006] A roll coater is one in which a part of the surface of a rotating roll is immersed in a paint reservoir to adhere the paint to the surface of the roll, and the paint adhered to the surface of the roll is moved to the surface of the outer wall material. is there. In this roll coater, there are a system in which the rotation direction of the roll and a passage direction of the outer wall material are the same and a system in which the direction is opposite. This roll coater moves the paint adhering to the roll to the surface of the outer wall material, so it is used in the case of an outer wall material with a smooth surface, but in the case of an outer wall material with a recess such as a deeply carved outer wall material. No paint can be applied to the recesses. Therefore, it is not used for coating outer wall materials with recesses.
【０００７】フローコーターは、塗料溜の側壁から塗料
を膜状に溢れさせ、この膜状の塗料の中を外壁材を通過
させて、外壁材の表面に塗料を塗布する方法である。こ
のフローコーターは、表面が平滑な外壁材の表面には、
塗料が略均一に塗布できるで、表面が平滑な外壁材の場
合には使用されるが、表面に深い彫りがある外壁材のよ
うに凹部があると、凹部に塗料が溜まるので、均一塗布
には不向きである。したがって、凹部のある外壁材の塗
装には採用されない。The flow coater is a method in which the coating material overflows from the side wall of the coating material reservoir in a film shape, the outer wall material is passed through the coating material in the film shape, and the coating material is applied to the surface of the outer wall material. This flow coater has a smooth surface,
It is used for outer wall materials with a smooth surface because the paint can be applied almost uniformly, but if there is a recess like an outer wall material with a deep engraved surface, the paint will accumulate in the recesses, so uniform application Is not suitable for. Therefore, it is not used for coating an outer wall material having a recess.
【０００８】デッピング方法は、塗料溜の中に外壁材を
沈めて塗布する方法である。このデッピング方法は、表
面や裏面等のように全体に塗料が塗布されるため、外壁
の表面だけに塗布したいときには採用できないし、表面
に深い彫りがある外壁材のように凹部があると、この凹
部に多く塗布されるので、表面に深い彫りのある外壁材
の塗装には採用されない。以上の説明で判るように、凹
部のある外壁材にはスプレー塗装方法が多く採用されて
いる。The depping method is a method in which the outer wall material is immersed in the paint reservoir and applied. This depping method is not applicable when you want to apply it only to the surface of the outer wall because the paint is applied to the entire surface such as the front surface and the back surface, and if there is a recess like the outer wall material with deep carving on the surface, Since it is often applied to the recesses, it is not used for coating outer wall materials with deep carved surfaces. As can be seen from the above description, the spray coating method is often used for the outer wall material having the recess.
【０００９】[0009]
【発明が解決しようとする課題】しかしながら、外壁材
の表面を塗布する最も効果的な方法と考えられている従
来のスプレー塗装方法にあっても、彫りの深いＡＬＣ製
の外壁材や、硬質木片セメント板製の外壁材を塗装する
場合には、多くの問題が生ずる。すなわち、溝等の深い
彫りがあると、溝部と一般部（非溝部）とでは、スプレ
ーから塗布される塗料の塗布量が異なる。また、ＡＬＣ
製の外壁材では、製造時、表面に多くの気泡が顕れて凹
凸となるので、この表面にスプレー方式で塗料を塗布す
ると、凹凸の内部まで塗布されず、この凹凸の内部に気
泡を含んだ状態になり、この塗料が乾燥した後に、気泡
が破けて、この部分が塗装されてないか塗膜の薄い状態
になる。硬質木片セメント板でも、表面を削って彫りの
深い表面にすると、この表面に木片が顕れて、この木片
の蔭の部分が塗装されず気泡となって残る、という問題
がある。However, even in the conventional spray coating method, which is considered to be the most effective method for coating the surface of the outer wall material, the outer wall material made of ALC or the hard wood chips, which is deeply carved, is used. Many problems arise when painting cement wall exterior walls. That is, if there is a deep engraving such as a groove, the coating amount applied from the spray is different between the groove portion and the general portion (non-groove portion). Also, ALC
Since many air bubbles appear on the surface of the manufactured outer wall material and become uneven, when the paint is applied to this surface by the spray method, it is not applied to the inside of the unevenness, and bubbles are included inside the unevenness. After the paint is dried, air bubbles are broken and the part is left unpainted or has a thin coating film. Even with a hard wood chip cement plate, if the surface is carved into a deeply carved surface, the wood chip appears on this surface, and the shaded part of this wood chip remains unpainted and remains as bubbles.
【００１０】塗料が少なく塗布される溝部や、気泡が破
けた凹凸部分から雨水が浸透しないようにするために
は、塗料を厚く塗布すれば良いが、多くの塗料が必要に
なり、かつ、無駄になる、という欠点がある。この不具
合を回避するためには、溝部等に対しては、特別に塗り
直すか、あるいは、先に塗っておくかすれば良いが、工
程が煩雑となり、作業時間が長くなる、という問題があ
る。ところで、最近では、外壁材の表面に空気を吹き付
けて、その表面に付着した塗料を移動させて、塗膜の厚
みを均一化させる塗装方法が開発されているが、深い彫
りのある外壁材では、塗布量を完全に均一にすることが
できないし、気泡をなくすこともできない。In order to prevent rainwater from penetrating from a groove portion where a small amount of paint is applied or an uneven portion where bubbles are broken, it is sufficient to apply a thick paint, but a large amount of paint is required and wasteful. Has the drawback that In order to avoid this problem, the groove or the like may be specially repainted or previously painted, but there is a problem that the process becomes complicated and the working time becomes long. By the way, recently, a coating method has been developed in which air is blown onto the surface of the outer wall material to move the paint adhering to the surface to make the thickness of the coating film uniform. However, it is impossible to make the applied amount completely uniform, and it is not possible to eliminate bubbles.
【００１１】この発明は、上述の事情に鑑みてなされた
もので、例えばＡＬＣ製や木片セメント板製等の外壁材
等のように、彫りの深い建築部材に対しても、塗膜を不
経済に厚くすることなく、溝部と一般部（非溝部）との
間でも、略均一の厚さに美麗に塗布することができ、し
かも、塗り残しが生じることなく確実に塗布することが
でき、したがって、透水性が小さく、凍害に強い建築部
材とすることのできる建築部材の塗装方法及び塗装装置
を提供することを目的としている。The present invention has been made in view of the above circumstances, and the coating film is uneconomical even on a deeply carved building member such as an outer wall material made of ALC or wood chip cement board. It is possible to apply a beautifully uniform thickness between the groove portion and the general portion (non-groove portion) without thickening, and it is possible to surely apply without leaving an uncoated portion. An object of the present invention is to provide a coating method and coating apparatus for a building member, which has a low water permeability and is resistant to frost damage.
【００１２】[0012]
【課題を解決するための手段】上記課題を解決するため
に、請求項１記載の発明は、建築部材である被塗装物の
表面に塗料を塗布するための塗装装置に係り、上記被塗
装物の表面に塗料を吹き付けて液状塗膜層を形成するた
めのスプレー塗布手段を備える第１のブースと、該第１
のブースの後段に配置され、送風機の空気吸引口を内部
に持つ第２のブースと、該第２のブースの後段に配置さ
れ、上記送風機の空気吹出口を内部に持つ第３のブース
とを有してなると共に、上記第２のブースと第３のブー
スとが仕切り板で互いに仕切られていて、かつ、該仕切
板の下端部には、又は該仕切板と床面との間には、上記
被塗装物が通過できるエアナイフ用開口部が設けられ、
上記各ブースの床面上には、上記被塗装物を載置して、
上記第１のブース、第２のブース及び第３のブース内を
この順に通過させるためのコンベアが、第２のブースと
第３のブースとの間の上記エアナイフ用開口部を経由し
て敷設され、上記被塗装物が、上記コンベアに載って、
上記エアナイフ用開口部を通過する際に、上記第１のブ
ースにて被塗装物の表面に形成された上記液状塗膜層
が、上記送風機の稼動により、加圧状態となった上記第
３のブース内から減圧状態となった第２のブースへ、当
該エアナイフ用開口部を通して流れる空気の流勢によっ
て、略均一に薄膜化される構成となっていることを特徴
としている。In order to solve the above-mentioned problems, the invention according to claim 1 relates to a coating apparatus for applying a paint to the surface of an object to be coated, which is a building member. And a first booth equipped with a spray coating means for spraying a paint onto the surface of the substrate to form a liquid coating layer.
A second booth arranged in the latter stage of the booth and having an air suction port of the blower inside, and a third booth arranged in the latter stage of the second booth and having the air outlet of the blower inside. The second booth and the third booth are partitioned from each other by a partition plate, and at the lower end of the partition plate or between the partition plate and the floor surface. , An opening for an air knife through which the object to be coated can pass is provided,
On the floor surface of each booth, place the above-mentioned object to be coated,
A conveyor for passing through the first booth, the second booth, and the third booth in this order is laid via the opening for the air knife between the second booth and the third booth. , The article to be coated is placed on the conveyor,
When passing through the air knife opening, the liquid coating layer formed on the surface of the article to be coated in the first booth is brought into a pressurized state by the operation of the blower. It is characterized in that a thin film is formed into a substantially uniform film from the inside of the booth to the second booth in a depressurized state by the flow force of the air flowing through the opening for the air knife.
【００１３】また、請求項２記載の発明は、請求項１記
載の建築部材の塗装装置に係り、上記第３のブースにお
いて、上記空気吹出口は、上記被塗装物の表面に形成さ
れた上記液状塗膜層に、空気を吹き付ける態様に設けら
れていることを特徴としている。The invention according to claim 2 relates to the coating apparatus for a building member according to claim 1, wherein in the third booth, the air outlet is formed on the surface of the object to be coated. It is characterized in that the liquid coating layer is provided in a manner of blowing air.
【００１４】また、請求項３記載の発明は、請求項１記
載の建築部材の塗装装置に係り、上記エアナイフ用開口
部では、上記第２のブースと第３のブースとを仕切る上
記仕切板と、該仕切板を通過する上記コンベア上の上記
被塗装物との隙間間隔が、５〜３０ｍｍに設定されてい
ることを特徴としている。Further, the invention according to claim 3 relates to the coating device for a building member according to claim 1, wherein the partition plate for partitioning the second booth and the third booth is provided in the opening for the air knife. The clearance between the partition plate and the object to be coated on the conveyor is set to 5 to 30 mm.
【００１５】また、請求項４記載の発明は、請求項１記
載の建築部材の塗装装置に係り、上記エアナイフ用開口
部では、上記第２のブースと第３のブースとを仕切る上
記仕切板と、該仕切板を通過するコンベア上の上記被塗
装物との隙間間隔を調節するための隙間調節手段が付加
されていることを特徴としている。The invention according to claim 4 relates to the coating device for a building member according to claim 1, wherein the partition plate for partitioning the second booth and the third booth is provided in the opening for the air knife. It is characterized in that a gap adjusting means for adjusting a gap interval between the partition plate and the object to be coated on the conveyor is added.
【００１６】また、請求項５記載の発明は、請求項１記
載の建築部材の塗装装置に係り、上記第２のブースと第
３のブースとを仕切る上記仕切板の下辺の形状が、上記
コンベアの移動方向に直交する方向に沿う、当該コンベ
ア上の上記被塗装物の表面輪郭に概略相似の形状とされ
ていることを特徴としている。Further, the invention according to claim 5 relates to the coating device for a building member according to claim 1, wherein the shape of the lower side of the partition plate for partitioning the second booth and the third booth is the conveyor. Is substantially similar in shape to the surface contour of the article to be coated on the conveyor, which is along the direction orthogonal to the moving direction.
【００１７】また、請求項６記載の発明は、請求項１記
載の建築部材の塗装装置に係り、上記エアナイフ用開口
部は、所定長さの奥行きを持つ天井又は庇を少なくとも
有してなることを特徴としている。The invention according to claim 6 relates to the coating device for a building member according to claim 1, wherein the opening for the air knife has at least a ceiling or an eave having a depth of a predetermined length. Is characterized by.
【００１８】また、請求項７記載の発明は、請求項６記
載の建築部材の塗装装置に係り、上記エアナイフ用開口
部の上記天井又は庇は、上記第３のブース側から第２の
ブース側に向けて、降り勾配となっていることを特徴と
している。The invention according to claim 7 relates to the coating device for a building member according to claim 6, wherein the ceiling or eaves of the air knife opening is from the third booth side to the second booth side. It is characterized by a descending slope toward.
【００１９】また、請求項８記載の発明は、請求項１記
載の建築部材の塗装装置に係り、上記第１のブースと第
２のブースも、互いに仕切板で仕切られていて、かつ、
該仕切板の下端部には、又は該仕切板と床面との間に
は、上記被塗装物が通過できる開口部が設けられ、上記
送風機の稼動時、当該開口部を通って、上記第１のブー
ス内の空気が、減圧状態の第２のブースへ流れ込む構成
となっていることを特徴としている。The invention according to claim 8 relates to the coating apparatus for a building member according to claim 1, wherein the first booth and the second booth are also separated from each other by a partition plate, and
At the lower end of the partition plate, or between the partition plate and the floor surface, an opening through which the object to be coated can pass is provided, and when the blower is in operation, the opening passes through the opening and passes through the opening. The air in the first booth is characterized in that it flows into the second booth in a depressurized state.
【００２０】また、請求項９記載の発明は、請求項１記
載の建築部材の塗装装置に係り、上記被塗装物が、上記
コンベアに載って、上記第３のブースに設けられた搬出
口を通過して外部に搬出される際に、上記被塗装物の表
面に形成された液状塗膜層は、上記送風機の稼動によ
り、加圧状態となった上記第３のブースから外部へ排出
される空気流の勢いによって、さらに均一に薄膜化され
る構成となっていることを特徴としている。Further, the invention according to claim 9 relates to the coating device for a building member according to claim 1, wherein the object to be coated is placed on the conveyor, and an outlet provided in the third booth is installed. The liquid coating film layer formed on the surface of the article to be coated is discharged from the third booth in a pressurized state to the outside by the operation of the blower. The feature is that the film is made more uniform by the force of the air flow.
【００２１】また、請求項１０記載の発明は、請求項９
記載の建築部材の塗装装置に係り、上記第３のブースに
設けられた上記搬出口は、所定長さの奥行きを持つ天井
又は庇を少なくとも有してなることを特徴としている。The invention according to claim 10 is the same as that of claim 9.
According to the coating apparatus for a building member as described above, the carry-out port provided in the third booth has at least a ceiling or an eave having a depth of a predetermined length.
【００２２】また、請求項１１記載の発明は、請求項１
０記載の建築部材の塗装装置に係り、上記搬出口の天井
又は庇は、その奥行き方向の全部が又は一部が、上記第
３のブース側から外部側に向けて、降り勾配となってい
ることを特徴としている。The invention according to claim 11 is the same as claim 1.
The coating device for a building member as described in 0, the ceiling or the eaves of the carry-out port has a descending slope in the depth direction in whole or in part from the third booth side to the outside. It is characterized by that.
【００２３】また、請求項１２記載の発明は、請求項１
乃至１０の何れか１に記載の塗装装置を用いて建築部材
を塗装する方法に係り、上記建築部材である被塗装物を
上記コンベアに載置して、上記第１のブース、第２のブ
ース及び第３のブースを順次通過させ、上記第１のブー
スでは、上記被塗装物の表面に上記スプレー塗布手段で
塗料を吹き付けて液状塗膜層を形成し、上記第２のブー
スでは、上記送風機を稼動し当該第２のブース内を減圧
状態にして、上記被塗装物の表面に形成された上記液状
塗膜層を脱泡し、上記第３のブースでは、上記送風機を
稼動し上記被塗装物の表面に形成された上記液状塗膜層
に空気を吹き付ける態様で、当該第３のブース内を加圧
状態にして、上記第２のブースと第３のブースとの間の
上記エアナイフ用開口部を通して、第３のブースから第
２のブースへ空気を流れ込ませ、上記コンベアに載っ
て、上記被塗装物が、上記エアナイフ用開口部を通過す
る際に、その表面に形成された上記液状塗膜層を略均一
に薄膜化することを特徴としている。The invention according to claim 12 is the same as claim 1
According to a method for coating a building member using the coating device according to any one of 1 to 10, the article to be coated, which is the building member, is placed on the conveyor, and the first booth and the second booth are mounted. And a third booth in sequence, and in the first booth, a coating film is sprayed onto the surface of the object to be coated by the spray coating means to form a liquid coating film layer, and in the second booth, the blower. To depressurize the liquid coating layer formed on the surface of the article to be coated, and in the third booth, the blower is operated to perform the coating. The air knife opening is formed between the second booth and the third booth by applying pressure to the third booth in a mode in which air is blown to the liquid coating layer formed on the surface of the object. Through the booth from the 3rd booth to the 2nd booth Was flowing, resting on the conveyor, the object to be coated is, when passing through for the air knife opening, it is characterized in that substantially uniformly thinned the liquid coating layer formed on the surface thereof.
【００２４】また、請求項１３記載の発明は、請求項１
２記載の建築部材の塗装方法に係り、上記被塗装物が、
上記第３のブースに設けられた搬出口を通過して外部に
搬出される際に、被塗装物の表面に形成された上記液状
塗膜層を、上記送風機の稼動により、加圧状態となった
第３のブースから外部へ当該搬出口を経由して排出され
る空気の流勢によって、さらに均一に薄膜化することを
特徴としている。The invention according to claim 13 is the same as claim 1.
According to the method of coating a building member as described in 2 above,
The liquid coating layer formed on the surface of the article to be coated is brought into a pressurized state by the operation of the blower when being carried out through the carry-out port provided in the third booth. Further, it is characterized in that the film is made more uniform by the flow force of the air discharged from the third booth to the outside through the carry-out port.
【００２５】また、請求項１４記載の発明は、請求項１
２又は１３記載の建築部材の塗装方法に係り、被塗装物
である上記建築部材が、表面にエンボス模様、凹部、凸
部又は溝部が設けられた外壁材であることを特徴として
いる。The invention of claim 14 is the same as claim 1
The method for coating a building member according to 2 or 13 is characterized in that the building member as an object to be coated is an outer wall material having an embossed pattern, a concave portion, a convex portion or a groove portion on the surface.
【００２６】また、請求項１５記載の発明は、請求項１
４記載の建築部材の塗装方法に係り、上記外壁材が、Ａ
ＬＣ又は硬質木片セメント板であることを特徴としてい
る。The invention of claim 15 is the same as claim 1
According to the method of coating a building member as described in 4, the outer wall material is A
It is characterized by being an LC or hard wood chip cement board.
【００２７】さらにまた、請求項１６記載の発明は、請
求項１２又は１３記載の建築部材の塗装方法に係り、被
塗装物である上記建築部材が、役物であることを特徴と
している。Furthermore, the invention according to claim 16 relates to the method for coating a building member according to claim 12 or 13, characterized in that the building member which is the object to be painted is an accessory.
【００２８】[0028]
【作用】この発明の構成において、外壁材は、まず、搬
入口からスプレーブース内へ侵入する。第１のブースで
は、被塗装物の表面にスプレー塗布手段によって塗料が
吹き付けられて液状塗膜層が形成される。次に、外壁材
は、第２のブースに進入する。第２のブースでは、送風
機の稼動により、減圧状態となっている。それゆえ、被
塗装物が、減圧されている第２のブースを通過している
間に、液状塗膜層内に発生した気泡が自然に破けて脱泡
するので、ＡＬＣ板の表面の凹凸や木片セメント板の表
面に顕れた木片の蔭に発生した気泡が除かれる。このと
き、溶剤や塗料の飛沫を含む第１のブース内の空気は、
減圧状態の第２のブースへ吸い込まれる。この結果、溶
剤や塗料の飛沫を含む空気が、第１のブースから装置外
へ漏れ出難くなるので、環境衛生上大変好ましい。In the structure of the present invention, the outer wall material first enters the spray booth through the carry-in port. In the first booth, the coating material is sprayed onto the surface of the object to be coated by the spray coating means to form a liquid coating layer. Next, the outer wall material enters the second booth. The second booth is in a decompressed state due to the operation of the blower. Therefore, while the object to be coated passes through the second booth under reduced pressure, the bubbles generated in the liquid coating layer are naturally broken and defoamed. Air bubbles generated on the surface of the wood chip cement plate due to the wood chips are removed. At this time, the air in the first booth containing the solvent and paint splashes,
It is sucked into the second booth in a depressurized state. As a result, it is difficult for the air containing the solvent and paint splashes to leak out of the device from the first booth, which is very preferable in terms of environmental hygiene.
【００２９】第３のブースでは、送風機の稼動により、
加圧状態となっている。それゆえ、第２のブースと第３
のブースとの間のエアナイフ用開口部では、加圧状態の
第３のブース側から減圧状態の第２のブース側へ強い空
気流が流れ込む。このような状態において、被塗装物
が、コンベアに載って、エアナイフ用開口部を通過しよ
うとすると、第３のブースから第２のブースへ流れ込む
強い空気流がエアナイフとして働くので、被塗装物表面
の液状塗膜層は、薄膜化される。このとき、空気流の力
により、塗料が不足している領域に塗料の厚い領域から
塗料が移動するので、建築部材の表面が略均一な塗料膜
で覆われることとなる。すなわち、第２のブースでは、
彫りの深い被塗装物の溝部と一般部との間、気泡が破け
た領域と気泡が元々発生していない領域との間で、塗膜
の厚さが異なっていても、この被塗装物が、コンベアに
載って、第２のブースと第３のブースとの間のエアナイ
フ用開口部を通過する際、強い空気流を受けて、塗料の
厚い領域の塗料が、塗料が不足している領域に押し流さ
れて建築部材の表面が略均一な塗料膜で覆われる。At the third booth, the operation of the blower
Pressurized. Therefore, the second booth and the third
At the opening for the air knife between the second booth and the second booth, a strong airflow flows from the third booth side in the pressurized state to the second booth side in the depressurized state. In such a state, when the article to be coated is placed on the conveyor and tries to pass through the opening for the air knife, the strong airflow flowing from the third booth to the second booth acts as an air knife, so that the surface of the article to be coated is The liquid coating layer is thinned. At this time, due to the force of the air flow, the paint moves from the thick area of the paint to the area where the paint is insufficient, so that the surface of the building member is covered with a substantially uniform paint film. That is, in the second booth,
Even if the thickness of the coating film differs between the groove and the general part of the carved deep object, the area where the bubbles are broken and the area where the bubbles are not originally generated, this object is An area where the paint in a thick area of the paint is lacking due to a strong air flow when passing through the opening for the air knife between the second booth and the third booth on the conveyor. And the surface of the building member is covered with a substantially uniform paint film.
【００３０】第３のブースでは、被塗装物の表面に略真
上から空気を吹き付け、これにより、液状塗膜層が加圧
される。それゆえ、被塗装物が、エアナイフ用開口部を
通過した後でも、依然塗膜ムラが存在するときは、この
加圧力により、塗料が不足している領域に塗料の厚い領
域に塗料が移動して建築部材の表面を略均一な塗料膜で
確実に覆う。最後に、外壁材は、第３のブースの搬出口
から出て来る。このときも、液状塗膜層は、加圧状態の
第３のブースから装置の外部へ排出される空気流の勢い
によって、さらに塗膜厚さを均一化され薄膜化される。In the third booth, air is blown onto the surface of the article to be coated from almost directly above, whereby the liquid coating layer is pressed. Therefore, even if the object to be coated passes through the opening for the air knife, and if there is still unevenness in the coating film, this pressure causes the paint to move to the area where the paint is insufficient and to the thick area of the paint. Make sure that the surface of the building member is covered with a substantially uniform paint film. Finally, the outer wall material emerges from the outlet of the third booth. Also at this time, the liquid coating layer is further made uniform in thickness and thinned by the force of the air flow discharged from the third booth under pressure to the outside of the apparatus.
【００３１】それゆえ、この発明の構成によれば、ＡＬ
Ｃ製や木片セメント板製等の外壁材等のように、彫りの
深い建築部材に対しても、塗膜を不経済に厚くすること
なく、溝部と一般部（非溝部）との間でも、略均一の厚
さに美麗に塗布することができ、しかも、塗り残しが生
じることなく確実に塗布することができ、したがって、
透水性が小さく、凍害に強い建築部材とすることができ
る。Therefore, according to the configuration of the present invention, the AL
Even for deeply carved building members such as outer wall materials made of C or wood chip cement board, etc., without making the coating film uneconomically thick, even between the groove portion and the general portion (non-groove portion), It can be applied beautifully to a substantially uniform thickness, and moreover, it can be surely applied without leaving any unpainted residue.
It is possible to make a building member that has low water permeability and is resistant to frost damage.
【００３２】[0032]
【発明の実施の形態】以下、図面を参照して、この発明
の実施の形態について説明する。説明は、実施例を用い
て具体的に行う。
◇第１実施例
図１は、この発明の第１実施例である外壁材の塗装装置
の構成を概略示す断面図、図２は、縦横に目地溝模様の
施されたＡＬＣ製の（被塗装物である）外壁材を示す斜
視図、図３は、この例の動作を説明するための説明図
で、工程の進行に従って、外壁材に塗布された塗料の厚
さが変化する様子を示す模式的断面図、図４は、同じく
この例の動作を説明するための説明図で、同塗装装置内
における空気の流れを示す模式的平面図、また、図５
は、従来技術との品質比較の実測値を示す図で、塗布量
と透水量との関係を示す図表である。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. The description will be specifically made using the embodiments. First Embodiment FIG. 1 is a sectional view schematically showing the construction of a coating apparatus for an outer wall material according to a first embodiment of the present invention, and FIG. 2 is an ALC-made (painted FIG. 3 is a perspective view showing the outer wall material (which is the object), and FIG. 3 is an explanatory view for explaining the operation of this example, which schematically shows that the thickness of the coating material applied to the outer wall material changes as the process progresses. 4 is a schematic cross-sectional view and FIG. 4 is an explanatory view for explaining the operation of this example, and is a schematic plan view showing the flow of air in the coating apparatus, and FIG.
[Fig. 3] is a diagram showing measured values for quality comparison with the conventional technique, and is a chart showing the relationship between the coating amount and the water permeation amount.
【００３３】この例の塗装装置は、外壁材（被塗装物）
の表面に塗料を吹き付けた後、”エアナイフ”で塗膜を
一様にする、いわゆるシャワ＆エアナイフ方式の塗装装
置に係り、図１に示すように、スプレーブース（第１の
ブース）２と、減圧ブース（第２のブース）３と、加圧
ブース（第３のブース）４と、スプレー塗布機５と、循
環ブロア６と、ローラコンベア７とから概略なってい
る。The coating apparatus of this example has an outer wall material (object to be coated).
In regard to a so-called shower & air knife type coating device, which sprays paint on the surface of the, and then makes the coating film uniform with an "air knife", as shown in FIG. 1, a spray booth (first booth) 2 and It is roughly composed of a decompression booth (second booth) 3, a pressure booth (third booth) 4, a spray applicator 5, a circulation blower 6, and a roller conveyor 7.
【００３４】上記スプレーブース２では、その天井部
に、スプレー塗布機５が設けられていて、このスプレー
ブース２を通過する外壁材１の表面に塗料を吹き付ける
ようになっている。すなわち、スプレー塗布機５では、
図示しない塗料溜から塗料が配管５１の中を通過して、
スプレー塗布機５の先端に設けられているノズル５２か
ら霧状になって噴射される。霧状に噴射された塗料は、
下を通過する外壁材１の表面に降り注ぎ、こうして、液
状塗膜層Ｌａ（図３参照）が形成される。減圧ブース３
では、その天井部に、循環ブロア６に連通する空気吸引
口６１が設けられていて、循環ブロア６が稼動すると、
ブース３内が減圧状態となって、このブース３内を通過
する外壁材１の表面に塗布された塗料（液状塗膜層）内
の泡を脱泡する。また、加圧ブース４では、その天井部
に、循環ブロア６に連通する空気吹出口６２が設けられ
ていて、循環ブロア６が稼動すると、ブース４内が加圧
状態となって、このブース４を通過する外壁材１に空気
を吹き付けて加圧し塗膜を一様にする。The spray booth 2 is provided with a spray applicator 5 on its ceiling, and sprays paint onto the surface of the outer wall material 1 passing through the spray booth 2. That is, in the spray coating machine 5,
Paint passes from the paint reservoir (not shown) through the pipe 51,
It is atomized and ejected from a nozzle 52 provided at the tip of the spray applicator 5. The sprayed paint is
The liquid coating layer La (see FIG. 3) is formed by pouring onto the surface of the outer wall material 1 passing below. Decompression booth 3
Then, an air suction port 61 communicating with the circulation blower 6 is provided in the ceiling portion thereof, and when the circulation blower 6 operates,
The inside of the booth 3 is depressurized, and the bubbles in the paint (liquid coating layer) applied to the surface of the outer wall material 1 passing through the inside of the booth 3 are defoamed. Further, in the pressurizing booth 4, an air outlet 62 communicating with the circulation blower 6 is provided in the ceiling portion thereof, and when the circulation blower 6 is operated, the inside of the booth 4 becomes a pressurized state, and the booth 4 Air is blown onto the outer wall material 1 passing through to apply pressure to make the coating film uniform.
【００３５】上記スプレーブース２には、塗料塗布前の
外壁材１が入る搬入口８１が設けられている。一方、加
圧ブース４には、塗料塗布後の外壁材１が出る搬出口８
２が設けられている。また、スプレーブース２と減圧ブ
ース３とは、仕切板９１で互いに仕切られ、減圧ブース
３と加圧ブース４とは、仕切板９２で互いに仕切られて
いる。これらの仕切板９１，９２の下端部には、外壁材
１が通過するための開口部８３，８４が設けられてい
る。The spray booth 2 is provided with a carry-in port 81 into which the outer wall material 1 before coating is applied. On the other hand, in the pressurizing booth 4, the carry-out port 8 through which the outer wall material 1 after coating the paint comes out
Two are provided. The spray booth 2 and the decompression booth 3 are separated from each other by a partition plate 91, and the decompression booth 3 and the pressure booth 4 are separated from each other by a partition plate 92. Openings 83, 84 through which the outer wall material 1 passes are provided at the lower ends of the partition plates 91, 92.
【００３６】循環ブロア６は、空気吸引口６１から減圧
ブース３内の空気を吸い込んで、空気吹出口６２から、
加圧ブース４内を通過している外壁材３の表面に吹き付
ける構成となっている。この循環ブロア６が稼動する
と、減圧ブース３内の空気が吸い込まれるので、図４に
示すように、減圧ブース３の周囲、すなわち、搬入口８
１からスプレーブース２を通過した空気Ｇａや、加圧ブ
ース４からの空気Ｇｂが減圧ブース３に吸い込まれるこ
とで、スプレーブース２の溶剤や塗料飛沫にまみれる空
気ができるだけ装置外部に排出されないようにしてい
る。また、空気吹出口６２から加圧ブース４に吹き出た
空気は、開口部８３を経由して減圧ブース３に吹き出る
と共に、搬出口８２を経由して装置外部に吹き出るよう
になっていて、後述するエアナイフとして機能する。The circulation blower 6 sucks the air in the decompression booth 3 from the air suction port 61, and from the air blowing port 62,
It is configured to be sprayed onto the surface of the outer wall material 3 passing through the pressure booth 4. When the circulation blower 6 operates, the air in the decompression booth 3 is sucked in, so that as shown in FIG.
The air Ga that has passed through the spray booth 2 from 1 and the air Gb from the pressurizing booth 4 are sucked into the depressurizing booth 3 so that the air contained in the solvent of the spray booth 2 or the paint splashes is not discharged to the outside of the device as much as possible. ing. Further, the air blown from the air outlet 62 to the pressure booth 4 is blown to the decompression booth 3 via the opening 83 and is blown to the outside of the apparatus via the carry-out port 82, which will be described later. Functions as an air knife.
【００３７】ローラコンベア７は、図示せぬ駆動装置に
よって回転駆動される多数のロール７１，７１，…が互
いに等間隔に、かつ、平行に並べられて構成され、搬入
口８１、仕切板９１，９２下の開口部８３，８４、搬出
口８２を通過する態様で、スプレーブース２、減圧ブー
ス３及び加圧ブース４の床面に敷設されている。それゆ
え、このローラコンベア７の上にフレームからなる載置
台７２を載せ、この上に外壁材１を載せると、載置台７
２の上に載っている外壁材１が載置台７２と共に、スプ
レーブース２の搬入口８１から入って、スプレーブース
２→仕切板９１→減圧ブース３→仕切板９２→加圧ブー
ス４と順次通過して、加圧ブース４の搬出口８２から出
る。この例においては、ローラコンベア７上の載置台７
２に載って外壁材１が仕切板９１下の開口部８４を通過
するときの、仕切板９１（開口部８４の上端縁）と外壁
材１との隙間高さが、５〜３０ｍｍ（好適には、１０〜
２０ｍｍ）となるように設定されている。The roller conveyor 7 is composed of a large number of rolls 71, 71, ... Rotated and driven by a driving device (not shown) at equal intervals and in parallel, and has a carry-in port 81, a partition plate 91 ,. It is laid on the floor surfaces of the spray booth 2, the decompression booth 3 and the pressure booth 4 so as to pass through the openings 83 and 84 below 92 and the carry-out port 82. Therefore, when the mounting table 72 composed of a frame is mounted on the roller conveyor 7 and the outer wall material 1 is mounted thereon, the mounting table 7
The outer wall material 1 placed on 2 enters together with the mounting table 72 through the carry-in port 81 of the spray booth 2 and sequentially passes through the spray booth 2 → partition plate 91 → decompression booth 3 → partition plate 92 → pressurization booth 4. Then, it exits from the carry-out port 82 of the pressure booth 4. In this example, the mounting table 7 on the roller conveyor 7
2 and the outer wall material 1 passes through the opening 84 below the partition plate 91, the gap height between the partition plate 91 (the upper edge of the opening 84) and the outer wall material 1 is 5 to 30 mm (preferably Is 10
20 mm).
【００３８】この例で使用される外壁材（被塗装物）１
は、図２に示すように、鉄筋で補強された縦略１２００
ｍｍ、横略４５０ｍｍ、高さ略１５０ｍｍのＡＬＣ製の
板体であり、表面には、縦・横に１５０ｍｍピッチの彫
りの深い目地溝１１，１２，…模様が設けられている。Outer wall material (object to be coated) 1 used in this example
As shown in FIG. 2, the vertical bar 1200 is reinforced with reinforcing bars.
The plate is made of ALC and has a width of approximately 450 mm and a height of approximately 150 mm. The surface is provided with deep joint grooves 11, 12, ...
【００３９】外壁材１に塗布される塗料は、アルキド樹
脂塗料、アミノアルキド樹脂塗料、不飽和ポリエステル
樹脂塗料、エポキシ樹脂塗料、ポリウレタン樹脂塗料、
熱硬化性アクリル樹脂塗料等の溶剤系塗料でも、水溶性
樹脂塗料でも、エマルジョン塗料でも良い。しかし、公
害や耐候性等の観点からアクリル系エマルジョン塗料が
最も好ましい。The paint applied to the outer wall material 1 is an alkyd resin paint, amino alkyd resin paint, unsaturated polyester resin paint, epoxy resin paint, polyurethane resin paint,
It may be solvent-based paint such as thermosetting acrylic resin paint, water-soluble resin paint or emulsion paint. However, acrylic emulsion paints are most preferable from the viewpoints of pollution and weather resistance.
【００４０】次に、上記構成の塗装装置を用いて、図２
に示すようなＡＬＣ製の外壁材１を塗装するには、ま
ず、この塗布装置の電源を入れて、ローラコンベア７、
スプレー塗布機５及び循環ブロア６を稼動させる。次
に、ローラコンベア７の上に載置台７２を載せ、この載
置台７２の上に外壁材１を載せる。すると、図２に示す
ように、載置台７２の上に載せられた外壁材１が、載置
台７２と共に、搬入口８１からスプレーブース２内へ進
入する。Next, using the coating apparatus having the above-described structure, as shown in FIG.
In order to coat the outer wall material 1 made of ALC as shown in (1), first, turn on the power of this coating device,
The spray coater 5 and the circulation blower 6 are operated. Next, the mounting table 72 is mounted on the roller conveyor 7, and the outer wall material 1 is mounted on the mounting table 72. Then, as shown in FIG. 2, the outer wall material 1 placed on the mounting table 72 enters the spray booth 2 through the carry-in port 81 together with the mounting table 72.
【００４１】スプレーブース２では、図３に示すよう
に、外壁材（被塗装物）１の表面にスプレー塗布機５の
先端のノズル５２から塗料が霧状に吹き付けられて液状
塗膜層Ｌａが形成される。しかし、スプレーブース２に
て形成された液状塗膜層Ｌａは、比較的厚膜（１〜２ｍ
ｍの厚さ）ではあるが、膜厚ムラがはなはだしく、内部
に多くの気泡が残留し、しかも、溝部１１，１２等では
塗り残しが存在する場合もある。In the spray booth 2, as shown in FIG. 3, the coating material is sprayed on the surface of the outer wall material (workpiece) 1 from the nozzle 52 at the tip of the spray coating machine 5 to form a liquid coating layer La. It is formed. However, the liquid coating layer La formed in the spray booth 2 has a relatively thick film (1-2 m
Although there is a considerable unevenness in the film thickness, many bubbles remain inside, and there are also cases where unpainted portions remain in the grooves 11, 12 and the like.
【００４２】次に、外壁材１は、減圧ブース３に進入す
る。減圧ブース３では、循環ブロア６の稼動により、減
圧状態となっている。それゆえ、外壁材１が、減圧ブー
ス３を通過している間に、液状塗布膜Ｌａ内に発生した
気泡が自然に破けて脱泡するので、ＡＬＣの外壁材の表
面の凹凸に発生した気泡が除かれる。このとき、溶剤や
塗料の飛沫を含むスプレーブース２内の空気は、減圧ブ
ース３へ吸い込まれる。この結果、溶剤や塗料の飛沫を
含む空気が、スプレーブース２から装置の外部へ漏れ出
難くなるので、環境衛生上大変好ましい。Next, the outer wall material 1 enters the decompression booth 3. The decompression booth 3 is in a decompression state due to the operation of the circulation blower 6. Therefore, while the outer wall material 1 is passing through the decompression booth 3, the bubbles generated in the liquid coating film La are naturally broken and defoamed, so that the bubbles generated on the unevenness of the surface of the outer wall material of the ALC. Is excluded. At this time, the air in the spray booth 2 containing the solvent and the splash of paint is sucked into the decompression booth 3. As a result, the air containing the solvent and the splash of the paint hardly leaks out of the spray booth 2 to the outside of the apparatus, which is very preferable in terms of environmental hygiene.
【００４３】加圧ブース４では、循環ブロア６の稼動に
より、加圧状態となっている。それゆえ、減圧ブース３
と加圧ブース４とを仕切る仕切板９２下端部の開口部８
４を通して、加圧ブース４側から減圧ブース３側へ強い
空気流が流れ込む。In the pressurizing booth 4, the circulating blower 6 is in operation to maintain the pressurizing state. Therefore, the decompression booth 3
A partition plate 92 for partitioning the pressure booth 4 from the opening 8 at the lower end portion
A strong air flow flows from the pressurizing booth 4 side to the depressurizing booth 3 side through No. 4.
【００４４】このような状態において、外壁材（被塗装
物）１が、減圧ブース３と加圧ブース４とを仕切る仕切
板９２下端部の開口部８４から加圧ブース４に進入しよ
うとすると、図３及び図４に示すように、加圧ブース４
側から減圧ブース３側へ流れ込む強い空気流Ｇｂがエア
ナイフとして働くので、外壁材１の表面の液状塗膜層Ｌ
ｂは、薄膜化される。このとき、空気流Ｇｂの力によ
り、塗料が不足している領域に塗料の厚い領域から塗料
が移動するので、外壁材１の表面が、略均一な液状塗膜
層Ｌｂで覆われることとなる。すなわち、減圧ブース３
では、彫りの深い外壁材１の溝部１１，１２と一般部
（非溝部）との間、気泡が破けた領域と気泡が元々発生
していない領域との間で、塗膜の厚さが異なっていて
も、この外壁材１が、ローラコンベア７に載って、減圧
ブース３と加圧ブース４との間の開口部８４を通過する
際、強い空気流Ｇｂを受けて、塗料の厚い領域（一般部
（非溝部）や気泡が元々発生していない領域）の塗料
が、塗料が不足している領域（溝部１１，１２や気泡が
破けた領域）に押し流されて外壁材１の表面が略均一な
塗料膜で覆われる。In such a state, when the outer wall material (object to be coated) 1 tries to enter the pressurizing booth 4 from the opening 84 at the lower end of the partition plate 92 that partitions the depressurizing booth 3 and the pressurizing booth 4, As shown in FIGS. 3 and 4, the pressurizing booth 4
Since the strong air flow Gb flowing from the side to the decompression booth 3 side functions as an air knife, the liquid coating layer L on the surface of the outer wall material 1
b is thinned. At this time, the force of the air flow Gb causes the paint to move from the thick area of the paint to the area where the paint is insufficient, so that the surface of the outer wall material 1 is covered with the substantially uniform liquid coating layer Lb. . That is, the decompression booth 3
Then, the thickness of the coating film is different between the groove portions 11 and 12 of the deeply carved outer wall material 1 and the general portion (non-groove portion), and the region where the bubbles are broken and the region where the bubbles are not originally generated. However, when the outer wall material 1 is placed on the roller conveyor 7 and passes through the opening 84 between the decompression booth 3 and the pressure booth 4, it receives a strong air flow Gb and a thick area of the paint ( The coating material in the general portion (non-groove portion) or the area in which air bubbles are not originally generated is washed away into the area where the coating material is insufficient (the groove portions 11, 12 or the area where the air bubbles are broken), and the surface of the outer wall material 1 is substantially Covered with a uniform paint film.
【００４５】外壁材１が、加圧ブース４に進入すると、
循環ブロア６の稼動により、加圧ブース４天井部の空気
吹出口６２から床側の液状塗膜層Ｌｂの表面に空気を吹
き付け、これにより、液状塗膜層Ｌｂが加圧される。そ
れゆえ、外壁材１が、開口部８４を通過した後でも、依
然塗膜ムラが存在するときは、この加圧力により、塗料
が不足している領域に塗料の厚い領域に塗料が移動して
外壁材１の表面を略均一な液状塗膜層Ｌｂで確実に覆
う。When the outer wall material 1 enters the pressure booth 4,
By the operation of the circulation blower 6, air is blown onto the surface of the liquid coating layer Lb on the floor side from the air outlet 62 at the ceiling of the pressure booth 4, whereby the liquid coating layer Lb is pressurized. Therefore, even if the outer wall material 1 has passed through the opening 84 and still has coating unevenness, this pressure causes the coating material to move to a thick coating area in an area where the coating is insufficient. The surface of the outer wall material 1 is surely covered with a substantially uniform liquid coating layer Lb.
【００４６】最後に、外壁材１は、加圧ブース４の搬出
口８２から出て来る。このときも、液状塗膜層Ｌｃは、
図３及び図４に示すように、加圧ブース４から装置の外
部へ排出される空気流Ｇｃの勢いによって、さらに塗膜
厚さを均一化され、７０〜８０μｍの厚さにまで薄膜化
される。Finally, the outer wall material 1 comes out from the carry-out port 82 of the pressure booth 4. Also at this time, the liquid coating layer Lc is
As shown in FIGS. 3 and 4, the coating film thickness is further made uniform by the force of the air flow Gc discharged from the pressurizing booth 4 to the outside of the apparatus, and the coating film is thinned to a thickness of 70 to 80 μm. It
【００４７】このように、この例の構成によれば、彫り
の深いＡＬＣ等の外壁材１に対しても、空気流Ｇｂ，Ｇ
ｃや空気圧によって、塗料が不足している領域に塗料の
厚い領域に塗料が移動するので、塗膜を不経済に厚くす
ることなく、溝部１１，１２と一般部（非溝部）との間
でも、略均一の厚さに美麗に塗布することができ、しか
も、塗り残しが生じることなく確実にかつ迅速に塗布す
ることができ、したがって、透水性が小さく、凍害に強
い外壁材１とすることができる。As described above, according to the configuration of this example, the airflows Gb and G can be applied to the outer wall material 1 such as ALC, which is deeply carved.
Since the paint moves to a thick area of the paint due to c or air pressure, the paint is not economically thickened, and even between the groove portions 11 and 12 and the general portion (non-groove portion). The outer wall material 1 can be beautifully applied to a substantially uniform thickness, and can be applied reliably and quickly without leaving unpainted portions, and therefore has low water permeability and is resistant to frost damage. You can
【００４８】次に、この例の塗装方法と従来の代表的な
塗装方法との優劣を比較するための比較実験を行った。
この比較実験に用いた塗装方法は、次の４通りである。
（１）ＡＬＣ外壁材に対して、この実施例の塗装方法で
２度塗りする方法
（２）ＡＬＣ外壁材に対して、単にスプレー塗布のみで
２度塗りする方法（比較例１）。
（３）ＡＬＣ外壁材に対して、１回目は、スプレー塗布
して、圧縮空気を吹き付け、２回目は、スプレー塗布の
みを行う方法（比較例２）。
（４）ＡＬＣ外壁材に対して、スプレー塗布して圧縮空
気を吹き付ける塗布を２度繰り返す方法（比較例３）。
実験は、上述した各塗装方法を用いて、ＡＬＣ製の外壁
材に、アルリル系エマルジョン塗料を２度塗りし、塗布
量（Ｋｇ／ｍ２）と透水量(ｃｃ／２４ｈｒ．７５ｐ)と
の関係を実測した。なお、塗装方法が互いに異なる点を
除けば、素材・形状・寸法条件は、各塗装方法間で同一
とした。比較実験の結果を表１と図５に示す。表１及び
図５には、この実施例、比較例１，２，３の各塗布方法
により、ＡＬＣ外壁材の表面に塗布された塗膜領域のう
ち、一般部、垂直溝部、水平溝部、十字溝部の各２箇所
における塗布量と透水量との測定値が示されている。こ
こで、一般部○とは、ＡＬＣ外壁材の表面の非溝部の領
域を指し、平行溝部□とは、ＡＬＣ外壁材の進行方向に
平行に伸びる溝部１２を指し、垂直溝部△とは、ＡＬＣ
外壁材の進行方向と直交する方向に伸びる溝部１１を指
し、十字溝部◇とは、平行溝部と垂直溝部とが十字形に
交差する領域の溝部を指す。また、塗布量は、乾燥した
後の塗料の量である。Next, a comparative experiment was conducted to compare the superiority and inferiority of the coating method of this example with a conventional representative coating method.
The following four coating methods were used in this comparative experiment. (1) ALC outer wall material is coated twice by the coating method of this embodiment (2) ALC outer wall material is coated only twice by spray coating (Comparative Example 1). (3) A method in which spray coating is applied to the ALC outer wall material the first time and compressed air is blown to the ALC outer wall material, and only spray application is performed the second time (Comparative Example 2). (4) A method in which spray coating and spraying compressed air onto the ALC outer wall material are repeated twice (Comparative Example 3). The experiment was carried out by applying each of the above-mentioned coating methods to the ALC outer wall material and applying the allyl-based emulsion paint twice, and the relationship between the applied amount (Kg / m 2 ) and the water permeation amount (cc / 24 hr.75p). Was actually measured. The materials, shapes, and dimensional conditions were the same for each coating method, except that the coating methods differed from each other. The results of the comparative experiment are shown in Table 1 and FIG. Table 1 and FIG. 5 show the general part, the vertical groove part, the horizontal groove part, and the cross part among the coating film areas applied to the surface of the ALC outer wall material by the application methods of this Example and Comparative Examples 1, 2, and 3. The measured values of the coating amount and the water permeation amount at each two points of the groove are shown. Here, the general part ○ refers to a non-groove region on the surface of the ALC outer wall material, the parallel groove part □ refers to the groove part 12 extending parallel to the traveling direction of the ALC outer wall material, and the vertical groove part Δ refers to the ALC.
The groove portion 11 extending in the direction orthogonal to the traveling direction of the outer wall material is referred to, and the cross groove portion ◇ is a groove portion in a region where the parallel groove portion and the vertical groove portion intersect in a cross shape. The applied amount is the amount of paint after drying.
【００４９】表１及び図５から明らかなように、比較例
１は、塗布量が多いにもかかわらず、溝部分（平行溝
部、垂直溝部、十字溝部）の透水量が多く不十分であ
る。また、比較例２は、塗布量が次に多いにもかかわら
ず、溝部分（平行溝部、垂直溝部、十字溝部）の透水量
が多く不十分であることが判る。比較例３は、塗布量が
比較的少なく、一般部では、塗料が略均一になって極め
て透水量が少なく好ましいが、溝部分（垂直溝部、十字
溝部）の透水量が多く不十分であることが判る。これに
反して、この実施例の方法によれば、塗布量が少なく、
しかも、溝部分の透水量が少なく極めて優れていること
が判る。As is clear from Table 1 and FIG. 5, in Comparative Example 1, the amount of water permeation in the groove portions (parallel groove portion, vertical groove portion, cross groove portion) was large and insufficient, even though the coating amount was large. Further, in Comparative Example 2, it can be seen that the amount of water permeation in the groove portion (parallel groove portion, vertical groove portion, cross groove portion) is large and insufficient, although the coating amount is second largest. In Comparative Example 3, the amount of coating is relatively small, and in the general part, the paint is substantially uniform and the amount of water permeation is extremely small, which is preferable, but the amount of water permeation in the groove portion (vertical groove portion, cross groove portion) is large and insufficient. I understand. On the contrary, according to the method of this embodiment, the coating amount is small,
Moreover, it can be seen that the amount of water permeation in the groove is small and it is extremely excellent.
【００５０】[0050]
【表１】 [Table 1]
【００５１】◇第２実施例
図６は、この発明の第２実施例である外壁材の塗装装置
の構成を概略示す断面図である。この第２実施例の構成
が、上述の第１実施例のそれと大きく異なるところは、
図６に示すように、加圧ブース４への外壁材１の搬入口
である開口部８４ａ及び搬出口８２ａに、所定長さの奥
行きを持つ庇部（又は天井部）を設けるようにした点で
ある。この庇部（又は天井部）は、加圧ブース４の外方
に突出する態様で設けられている。このようにすれば、
エアナイフとして働く開口部８４ａ及び搬出口８２ａ付
近で空気流の層流が得られるので、一段と均一な塗膜が
得られる。Second Embodiment FIG. 6 is a sectional view schematically showing the construction of an outer wall material coating apparatus according to a second embodiment of the present invention. The structure of the second embodiment is largely different from that of the first embodiment described above.
As shown in FIG. 6, an eaves portion (or a ceiling portion) having a depth of a predetermined length is provided at an opening portion 84a and an outlet port 82a, which are inlet ports for the outer wall material 1 to the pressure booth 4. Is. This eaves portion (or ceiling portion) is provided so as to project to the outside of the pressure booth 4. If you do this,
Since a laminar flow of the air flow is obtained in the vicinity of the opening 84a acting as an air knife and the carry-out port 82a, a more uniform coating film can be obtained.
【００５２】◇第３実施例
図７は、この発明の第３実施例である外壁材の塗装装置
の構成を概略示す断面図である。この第３実施例では、
図７に示すように、加圧ブース４への外壁材１の搬入口
である開口部８４ｂ及び搬出口８２ｂに、外方に向けて
降り勾配である庇部（又は天井部）が設けられている。
このようにすれば、エアナイフとして働く開口部８４ｂ
及び搬出口８２ｂ付近で速度の速い空気流の層流が得ら
れるので、一段と均一な塗膜が得られる。Third Embodiment FIG. 7 is a sectional view schematically showing the construction of an outer wall material coating apparatus according to a third embodiment of the present invention. In this third embodiment,
As shown in FIG. 7, an eaves portion (or a ceiling portion) having a descending slope toward the outside is provided at an opening portion 84b which is a carry-in inlet of the outer wall material 1 to the pressure booth 4 and a carry-out outlet 82b. There is.
With this configuration, the opening 84b that functions as an air knife.
Since a laminar flow of a high-speed air flow is obtained in the vicinity of the carry-out port 82b, a more uniform coating film can be obtained.
【００５３】以上、この発明の実施例を図面により詳述
してきたが、具体的な構成はこの実施例に限られるもの
ではなく、この発明の要旨を逸脱しない範囲の設計の変
更等があってもこの発明に含まれる。例えば、この実施
例では、ロールコンベアを使用したが、ベルトコンベア
でも良いし、吊り下げ式のコンベアでも良い。また、外
壁材は、ＡＬＣに限らず、例えば、硬質木片セメント板
でも良い。また、塗装対象は、外壁材に限らず、他の建
築部材でも良い。また、上述の実施例では、載置台をロ
ールコンベアの上に載せ、この載置台の上に外壁材を載
せて各ブースを通過させたが、外壁材をロールコンベア
の上に直接載せて各ブースを通過させるようにしても良
い。また、図６において、加圧ブース４への外壁材１の
搬入口である開口部８４ａ及び搬出口８２ａのうち、何
れか一方を省略できる。図７においても同様である。The embodiment of the present invention has been described in detail above with reference to the drawings. However, the specific structure is not limited to this embodiment, and there are design changes and the like within the scope not departing from the gist of the present invention. Also included in the present invention. For example, although a roll conveyor is used in this embodiment, a belt conveyor or a hanging type conveyor may be used. The outer wall material is not limited to ALC, but may be a hard wood chip cement board, for example. Further, the object to be coated is not limited to the outer wall material, and may be another building member. Further, in the above-described embodiment, the mounting table was placed on the roll conveyor, and the outer wall material was placed on the mounting table and passed through each booth, but the outer wall material was placed directly on the roll conveyor and each booth was placed. May be passed. Further, in FIG. 6, one of the opening portion 84a, which is a carry-in inlet of the outer wall material 1 to the pressurizing booth 4, and the carry-out outlet 82a can be omitted. The same applies to FIG. 7.
【００５４】また、図８に示すように、加圧ブース４へ
の外壁材１の搬入口である開口部８４，８４ａ，８４ｂ
又は搬出口８２，８２ａ，８２ｂに、必要に応じて、風
量を調整するための高さ調節手段（又は隙間調節手段）
８５，８６を設けるようにすれば、被塗装物が変更され
た場合に迅速に対応できるので、大変使い勝手が良くな
る。また、図９（ａ），（ｂ）に示すように、加圧ブー
ス４への外壁材１の搬入口である開口部８４ｃ，８４ｄ
又は搬出口８２ｃ，８２ｄの形状が、コンベアの移動方
向に直交する方向に沿う、コンベア上の被塗装物１ｃ，
１ｄの表面輪郭に概略相似の形状とすれば、塗装対象た
る建築部材が、役物である場合、一段と効果的に適用で
きる。Further, as shown in FIG. 8, openings 84, 84a, 84b which are inlets of the outer wall material 1 to the pressure booth 4 are provided.
Alternatively, a height adjusting means (or a gap adjusting means) for adjusting the air volume at the carry-out ports 82, 82a, 82b, if necessary.
By providing 85 and 86, it is possible to quickly respond to changes in the object to be coated, which greatly improves usability. In addition, as shown in FIGS. 9A and 9B, openings 84c and 84d which are inlets of the outer wall material 1 to the pressurizing booth 4.
Alternatively, the shapes of the carry-out ports 82c, 82d are along the direction orthogonal to the moving direction of the conveyor, and the object to be coated 1c on the conveyor,
If the building member to be painted is an accessory, it can be applied more effectively if it has a shape substantially similar to the surface contour of 1d.
【００５５】[0055]
【発明の効果】以上説明したように、この発明の構成に
よれば、例えばＡＬＣ製や木片セメント板製等の外壁材
等のように、彫りの深い建築部材に対しても、空気流や
空気圧によって、塗料が不足している領域に塗料の厚い
領域に塗料が移動するので塗膜を不経済に厚くすること
なく、溝部と一般部（非溝部）との間でも、略均一の厚
さに美麗に塗布することができ、しかも、塗り残しが生
じることなく確実に塗布することができ、したがって、
透水性が小さく、凍害に強い建築部材とすることができ
る。As described above, according to the configuration of the present invention, even for a deeply carved building member such as an outer wall material made of ALC or wood chip cement board, the air flow and the air pressure can be reduced. Causes the paint to move to the area where the paint is insufficient and to a thick area of the paint, so that the coating is not uneconomically thickened, and even if it is between the groove and the general part (non-groove) It can be applied beautifully, and it can be surely applied without leaving an unpainted portion. Therefore,
It is possible to make a building member that has low water permeability and is resistant to frost damage.
【図１】この発明の第１実施例である外壁材の塗装装置
の構成を概略的に示す断面図である。FIG. 1 is a sectional view schematically showing the configuration of an outer wall material coating apparatus that is a first embodiment of the present invention.
【図２】縦横に目地溝模様の施されたＡＬＣ製の（被塗
装物である）外壁材を示す斜視図である。FIG. 2 is a perspective view showing an ALC outer wall material (which is an object to be coated) having vertical and horizontal joint groove patterns.
【図３】同実施例の動作を説明するための説明図で、工
程の進行に従って、外壁材に塗布された塗料の厚さが変
化する様子を示す模式的断面図である。FIG. 3 is an explanatory diagram for explaining the operation of the embodiment, and is a schematic cross-sectional view showing how the thickness of the coating material applied to the outer wall material changes as the process progresses.
【図４】同実施例の動作を説明するための説明図で、同
塗装装置内における空気の流れを示す模式的平面図であ
る。FIG. 4 is an explanatory diagram for explaining the operation of the embodiment, and is a schematic plan view showing the flow of air in the coating apparatus.
【図５】従来技術との品質比較の実測値を示す図で、塗
布量と透水量との関係を示す図表である。FIG. 5 is a diagram showing measured values for quality comparison with a conventional technique, and is a chart showing a relationship between a coating amount and a water permeation amount.
【図６】この発明の第２実施例である外壁材の塗装装置
の構成を概略的に示す断面図である。FIG. 6 is a cross-sectional view schematically showing the configuration of an outer wall material coating apparatus that is a second embodiment of the present invention.
【図７】この発明の第３実施例である外壁材の塗装装置
の構成を概略的に示す断面図である。FIG. 7 is a sectional view schematically showing the configuration of an outer wall material coating apparatus that is a third embodiment of the present invention.
【図８】この発明の実施例の変形例である外壁材の塗装
装置の構成を概略示す断面図である。FIG. 8 is a sectional view schematically showing the configuration of an outer wall material coating apparatus that is a modification of the embodiment of the present invention.
【図９】この発明の実施例の別の変形例である外壁材の
塗装装置の構成を概略示す断面図である。FIG. 9 is a sectional view schematically showing the configuration of an outer wall material coating apparatus that is another modification of the embodiment of the present invention.
１，１ｃ，１ｄ 外壁材（被塗装物） １１ 垂直溝部 １２ 水平溝部 ２ スプレーブース（第１のブース） ３ 減圧ブース（第２のブース） ４ 加圧ブース（第３のブース） ５ スプレー塗布機（スプレー塗布手段） ６ 循環ブロア（送風機） ６１ 空気吸引口 ６２ 空気吹出口 ７ ローラコンベア（コンベア） ８１ 搬入口 ８２ 搬出口 ８３ 開口部 ８４ 開口部（エアナイフ用開口部） ９１，９２ 仕切板 Ｌａ，Ｌｂ，Ｌｃ 液状塗膜層 Ｇａ，Ｇｂ，Ｇｃ 空気流 1, 1c, 1d Outer wall material (object to be coated) 11 Vertical groove 12 Horizontal groove 2 Spray booth (first booth) 3 Decompression booth (second booth) 4 Pressurization booth (3rd booth) 5 Spray coating machine (spray coating means) 6 Circulation blower (blower) 61 Air suction port 62 Air outlet 7 Roller conveyor (conveyor) 81 carry-in entrance 82 exit 83 opening 84 Opening (Opening for air knife) 91,92 Partition plate La, Lb, Lc Liquid coating layer Ga, Gb, Gc air flow
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平２−83064（ＪＰ，Ａ) 特開 平２−68168（ＪＰ，Ａ) 特開 昭58−55069（ＪＰ，Ａ) 実開 平３−123571（ＪＰ，Ｕ) 実開 昭62−156381（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) B05B 15/00 - 15/12 B05D 7/00 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-2-83064 (JP, A) JP-A-2-68168 (JP, A) JP-A-58-55069 (JP, A) Actual development 3- 123571 (JP, U) Actual development Sho 62-156381 (JP, U) (58) Fields investigated (Int.Cl. 7 , DB name) B05B 15/00-15/12 B05D 7/00
Claims (16)
塗布するための塗装装置であって、 前記被塗装物の表面に塗料を吹き付けて液状塗膜層を形
成するためのスプレー塗布手段を備える第１のブース
と、該第１のブースの後段に配置され、送風機の空気吸
引口を内部に持つ第２のブースと、該第２のブースの後
段に配置され、前記送風機の空気吹出口を内部に持つ第
３のブースとを有してなると共に、 前記第２のブースと第３のブースとが仕切り板で互いに
仕切られていて、かつ、該仕切板の下端部には、又は該
仕切板と床面との間には、前記被塗装物が通過できるエ
アナイフ用開口部が設けられ、 前記各ブースの床面上には、前記被塗装物を載置して、
前記第１のブース、第２のブース及び第３のブース内を
この順に通過させるためのコンベアが、第２のブースと
第３のブースとの間の前記エアナイフ用開口部を経由し
て敷設され、 前記被塗装物が、前記コンベアに載って、前記エアナイ
フ用開口部を通過する際に、前記第１のブースにて被塗
装物の表面に形成された前記液状塗膜層が、 前記送風機の稼動により、加圧状態となった前記第３の
ブース内から減圧状態となった第２のブースへ、当該エ
アナイフ用開口部を通して流れる空気の流勢によって、
略均一に薄膜化される構成となっていることを特徴とす
る建築部材の塗装装置。1. A coating apparatus for applying a coating material to the surface of an object to be coated, which is a building member, and a spray application means for spraying the coating material onto the surface of the object to be coated to form a liquid coating layer. With a first booth, a second booth disposed in the latter stage of the first booth and having an air suction port of the blower therein, and an air blower of the blower disposed in the latter stage of the second booth. A third booth having an outlet therein, the second booth and the third booth are partitioned from each other by a partition plate, and the lower end portion of the partition plate is Between the partition plate and the floor surface, an opening for an air knife through which the object to be coated can pass is provided, and the object to be coated is placed on the floor surface of each booth,
A conveyor for passing through the first booth, the second booth, and the third booth in this order is laid via the opening for the air knife between the second booth and the third booth. When the article to be coated is placed on the conveyor and passes through the opening for the air knife, the liquid coating layer formed on the surface of the article to be coated in the first booth is the blower. By the operation, from the inside of the third booth in the pressurized state to the second booth in the depressurized state, by the flow force of the air flowing through the opening for the air knife,
A coating device for a building member, which is configured to have a substantially uniform thin film.
出口は、前記被塗装物の表面に形成された前記液状塗膜
層に、空気を吹き付ける態様に設けられていることを特
徴とする請求項１記載の建築部材の塗装装置。2. The third booth, wherein the air outlet is provided in a manner that air is blown to the liquid coating film layer formed on the surface of the object to be coated. Item 1. A building member coating apparatus according to item 1.
のブースと第３のブースとを仕切る前記仕切板と、該仕
切板を通過する前記コンベア上の前記被塗装物との隙間
間隔が、５〜３０ｍｍに設定されていることを特徴とす
る請求項１記載の建築部材の塗装装置。3. In the opening for the air knife, the second
6. The gap between the partition plate for partitioning the booth and the third booth and the object to be coated on the conveyor passing through the partition plate is set to 5 to 30 mm. 1. The coating device for a building member according to 1.
のブースと第３のブースとを仕切る前記仕切板と、該仕
切板を通過するコンベア上の前記被塗装物との隙間間隔
を調節するための隙間調節手段が付加されていることを
特徴とする請求項１記載の建築部材の塗装装置。4. The second portion of the air knife opening is provided.
Gap adjusting means for adjusting the gap between the partition plate for partitioning the booth and the third booth and the object to be coated on the conveyor passing through the partition plate is added. The coating device for a building member according to claim 1.
切る前記仕切板の下辺の形状が、前記コンベアの移動方
向に直交する方向に沿う、当該コンベア上の前記被塗装
物の表面輪郭に概略相似の形状とされていることを特徴
とする請求項１記載の建築部材の塗装装置。5. The surface contour of the article to be coated on the conveyor in which the shape of the lower side of the partition plate for partitioning the second booth and the third booth is along the direction orthogonal to the moving direction of the conveyor. The coating device for a building member according to claim 1, wherein the coating device has a substantially similar shape.
奥行きを持つ天井又は庇を少なくとも有してなることを
特徴とする請求項１記載の建築部材の塗装装置。6. The coating apparatus for a building member according to claim 1, wherein the opening for the air knife has at least a ceiling or an eave having a depth of a predetermined length.
庇は、前記第３のブース側から第２のブース側に向け
て、降り勾配となっていることを特徴とする請求項６記
載の建築部材の塗装装置。7. The building according to claim 6, wherein the ceiling or the eaves of the opening for the air knife has a descending slope from the third booth side toward the second booth side. Parts coating equipment.
いに仕切板で仕切られていて、かつ、該仕切板の下端部
には、又は該仕切板と床面との間には、前記被塗装物が
通過できる開口部が設けられ、 前記送風機の稼動時、当該開口部を通って、前記第１の
ブース内の空気が、減圧状態の第２のブースへ流れ込む
構成となっていることを特徴とする請求項１記載の建築
部材の塗装装置。8. The first booth and the second booth are also partitioned from each other by a partition plate, and at the lower end portion of the partition plate or between the partition plate and the floor surface, An opening is provided through which the object to be coated can pass, and when the blower is in operation, the air in the first booth flows into the second booth in a depressurized state through the opening. The coating device for a building member according to claim 1, wherein:
て、前記第３のブースに設けられた搬出口を通過して装
置の外部に搬出される際に、前記被塗装物の表面の液状
塗膜層は、前記送風機の稼動により、加圧状態となった
前記第３のブースから外部へ排出される空気流の勢いに
よって、さらに均一に薄膜化される構成となっているこ
とを特徴とする請求項１記載の建築部材の塗装装置。9. The liquid on the surface of the article to be coated when the article to be coated is placed on the conveyor and is carried out of the apparatus through a carry-out port provided in the third booth. The coating layer is configured to be evenly thinned by the force of the air flow discharged from the third booth under pressure by the operation of the blower. The coating apparatus for a building member according to claim 1.
出口は、所定長さの奥行きを持つ天井又は庇を少なくと
も有してなることを特徴とする請求項９記載の建築部材
の塗装装置。10. The coating apparatus for building members according to claim 9, wherein the carry-out port provided in the third booth has at least a ceiling or an eave having a depth of a predetermined length. .
き方向の全部が又は一部が、前記第３のブース側から外
部側に向けて、降り勾配となっていることを特徴とする
請求項１０記載の建築部材の塗装装置。11. The ceiling or eaves of the carry-out exit is entirely or partially in the depth direction, and has a descending slope from the third booth side toward the outside. Item 10. A coating device for a building member according to item 10.
塗装装置を用いて建築部材を塗装する方法であって、 前記建築部材である被塗装物を前記コンベアに載置し
て、前記第１のブース、第２のブース及び第３のブース
を順次通過させ、 前記第１のブースでは、前記被塗装物の表面に前記スプ
レー塗布手段で塗料を吹き付けて液状塗膜層を形成し、 前記第２のブースでは、前記送風機を稼動し当該第２の
ブース内を減圧状態にして、前記被塗装物の表面に形成
された前記液状塗膜層を脱泡し、 前記第３のブースでは、前記送風機を稼動し、前記被塗
装物の表面に形成された前記液状塗膜層に空気を吹き付
ける態様で、当該第３のブース内を加圧状態にして、前
記第２のブースと第３のブースとの間の前記エアナイフ
用開口部を通して、前記第３のブースから第２のブース
へ空気を流れ込ませ、この空気の流勢によって、前記コ
ンベアに載って、前記被塗装物が、前記エアナイフ用開
口部を通過する際に、その表面に形成された前記液状塗
膜層を略均一に薄膜化することを特徴とする建築部材の
塗装方法。12. A method for coating a building member using the coating apparatus according to claim 1, wherein the article to be coated, which is the building member, is placed on the conveyor, The first booth, the second booth and the third booth are sequentially passed, and in the first booth, a liquid coating layer is formed by spraying the coating material onto the surface of the object to be coated by the spray coating means, In the second booth, the blower is operated to reduce the pressure in the second booth to defoam the liquid coating layer formed on the surface of the object to be coated, and in the third booth. In a mode in which the blower is operated and air is blown to the liquid coating layer formed on the surface of the object to be coated, the inside of the third booth is pressurized to set the second booth and the third booth. Through the air knife opening between the booth and Air was made to flow from the booth No. 3 to the second booth, and by the flow force of this air, the object to be coated was formed on the surface of the conveyor when passing through the opening for the air knife. A method for coating a building member, characterized in that the liquid coating layer is thinned substantially uniformly.
設けられた搬出口を通過して外部に搬出される際に、前
記被塗装物の表面に形成された前記液状塗膜層を、前記
送風機の稼動により、加圧状態となった前記第３のブー
スから外部へ当該搬出口を経由して排出される空気の流
勢によって、さらに均一に薄膜化することを特徴とする
請求項１２記載の建築部材の塗装方法。13. The liquid coating layer formed on the surface of the article to be coated when the article to be coated is carried outside through a carry-out port provided in the third booth. The film is further uniformly thinned by the flow force of the air discharged from the third booth in a pressurized state to the outside through the carry-out port by the operation of the blower. 12. The method for coating a building member according to item 12.
にエンボス模様、凹部、凸部又は溝部が設けられた外壁
材であることを特徴とする請求項１２又は１３記載の建
築部材の塗装方法。14. The coating of a building member according to claim 12, wherein the building member which is an object to be coated is an outer wall material having an embossed pattern, a concave portion, a convex portion or a groove portion provided on the surface thereof. Method.
メント板であることを特徴とする請求項１４記載の建築
部材の塗装方法。15. The method for coating a building member according to claim 14, wherein the outer wall material is ALC or hard wood chip cement board.
であることを特徴とする請求項１２又は１３記載の建築
部材の塗装方法。16. The method for coating a building member according to claim 12, wherein the building member that is the object to be coated is an accessory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33370898A JP3384754B2 (en) | 1998-11-25 | 1998-11-25 | Apparatus and method for coating building members |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33370898A JP3384754B2 (en) | 1998-11-25 | 1998-11-25 | Apparatus and method for coating building members |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000157900A JP2000157900A (en) | 2000-06-13 |
| JP3384754B2 true JP3384754B2 (en) | 2003-03-10 |
Family
ID=18269085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33370898A Expired - Lifetime JP3384754B2 (en) | 1998-11-25 | 1998-11-25 | Apparatus and method for coating building members |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3384754B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100643754B1 (en) | 2004-11-26 | 2006-11-10 | 주식회사 엘지화학 | Two- or three-dimensional extrusion materials, and coating apparatus |
| CN111992425B (en) * | 2020-07-15 | 2021-08-03 | 上海铜正技术服务中心(有限合伙) | Automatic gluing equipment for textiles and working method thereof |
| TWI821799B (en) * | 2020-12-28 | 2023-11-11 | 日商芝浦機械電子裝置股份有限公司 | Substrate processing equipment |
-
1998
- 1998-11-25 JP JP33370898A patent/JP3384754B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000157900A (en) | 2000-06-13 |
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