JP3224263B2 - Painting equipment - Google Patents
Painting equipmentInfo
- Publication number
- JP3224263B2 JP3224263B2 JP08303992A JP8303992A JP3224263B2 JP 3224263 B2 JP3224263 B2 JP 3224263B2 JP 08303992 A JP08303992 A JP 08303992A JP 8303992 A JP8303992 A JP 8303992A JP 3224263 B2 JP3224263 B2 JP 3224263B2
- Authority
- JP
- Japan
- Prior art keywords
- carrier gas
- spray pattern
- port
- liquid material
- coating apparatus
- 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 - Fee Related
Links
- 238000010422 painting Methods 0.000 title 1
- 239000012159 carrier gas Substances 0.000 claims description 62
- 238000000576 coating method Methods 0.000 claims description 56
- 239000011248 coating agent Substances 0.000 claims description 55
- 239000007921 spray Substances 0.000 claims description 45
- 239000011344 liquid material Substances 0.000 claims description 27
- 239000007789 gas Substances 0.000 claims description 7
- 238000005507 spraying Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 239000000969 carrier Substances 0.000 claims description 2
- 150000001412 amines Chemical class 0.000 description 7
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 239000003973 paint Substances 0.000 description 5
- 229920005862 polyol Polymers 0.000 description 5
- 230000003197 catalytic effect Effects 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 150000003077 polyols Chemical class 0.000 description 3
- BWZVCCNYKMEVEX-UHFFFAOYSA-N 2,4,6-Trimethylpyridine Chemical compound CC1=CC(C)=NC(C)=C1 BWZVCCNYKMEVEX-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- UEEJHVSXFDXPFK-UHFFFAOYSA-N N-dimethylaminoethanol Chemical compound CN(C)CCO UEEJHVSXFDXPFK-UHFFFAOYSA-N 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- SMWDFEZZVXVKRB-UHFFFAOYSA-N Quinoline Chemical compound N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 description 2
- -1 acrylic polyol Chemical class 0.000 description 2
- 239000003431 cross linking reagent Substances 0.000 description 2
- 229960002887 deanol Drugs 0.000 description 2
- 239000012972 dimethylethanolamine Substances 0.000 description 2
- AWJUIBRHMBBTKR-UHFFFAOYSA-N isoquinoline Chemical compound C1=NC=CC2=CC=CC=C21 AWJUIBRHMBBTKR-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920001228 polyisocyanate Polymers 0.000 description 2
- 239000005056 polyisocyanate Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 description 2
- AUHZEENZYGFFBQ-UHFFFAOYSA-N 1,3,5-Me3C6H3 Natural products CC1=CC(C)=CC(C)=C1 AUHZEENZYGFFBQ-UHFFFAOYSA-N 0.000 description 1
- BFSVOASYOCHEOV-UHFFFAOYSA-N 2-diethylaminoethanol Chemical compound CCN(CC)CCO BFSVOASYOCHEOV-UHFFFAOYSA-N 0.000 description 1
- AQIIVEISJBBUCR-UHFFFAOYSA-N 4-(3-phenylpropyl)pyridine Chemical compound C=1C=NC=CC=1CCCC1=CC=CC=C1 AQIIVEISJBBUCR-UHFFFAOYSA-N 0.000 description 1
- HVCNXQOWACZAFN-UHFFFAOYSA-N 4-ethylmorpholine Chemical compound CCN1CCOCC1 HVCNXQOWACZAFN-UHFFFAOYSA-N 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- SVYKKECYCPFKGB-UHFFFAOYSA-N N,N-dimethylcyclohexylamine Chemical compound CN(C)C1CCCCC1 SVYKKECYCPFKGB-UHFFFAOYSA-N 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- XXBDWLFCJWSEKW-UHFFFAOYSA-N dimethylbenzylamine Chemical compound CN(C)CC1=CC=CC=C1 XXBDWLFCJWSEKW-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- DAZXVJBJRMWXJP-UHFFFAOYSA-N n,n-dimethylethylamine Chemical compound CCN(C)C DAZXVJBJRMWXJP-UHFFFAOYSA-N 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 229920005906 polyester polyol Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- GFYHSKONPJXCDE-UHFFFAOYSA-N sym-collidine Natural products CC1=CN=C(C)C(C)=C1 GFYHSKONPJXCDE-UHFFFAOYSA-N 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- VPYJNCGUESNPMV-UHFFFAOYSA-N triallylamine Chemical compound C=CCN(CC=C)CC=C VPYJNCGUESNPMV-UHFFFAOYSA-N 0.000 description 1
- IMFACGCPASFAPR-UHFFFAOYSA-N tributylamine Chemical compound CCCCN(CCCC)CCCC IMFACGCPASFAPR-UHFFFAOYSA-N 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Landscapes
- Nozzles (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、液状物の塗装装置に関
し、更に詳細には、硬化促進剤の存在下で迅速に硬化す
る液状物に適したスプレー塗装装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for coating a liquid material, and more particularly to a spray coating apparatus suitable for a liquid material which rapidly cures in the presence of a curing accelerator.
【０００２】[0002]
【従来の技術】近年、自動車部品や家電製品において
は、軽量化や防錆対策などの点から、素材としてプラス
チックスが多く使用されている。2. Description of the Related Art In recent years, plastics have been widely used as materials in automobile parts and home electric appliances in terms of weight reduction and rust prevention measures.
【０００３】プラスチックの塗装においては、耐熱性の
観点から低温で塗膜を形成することが強く要望され、そ
の塗装方法の一つとして触媒蒸気混合塗装システムが用
いられている。[0003] In the coating of plastics, it is strongly desired to form a coating film at a low temperature from the viewpoint of heat resistance, and a catalytic vapor mixed coating system is used as one of the coating methods.
【０００４】上記塗装システムは、例えば、二液型ウレ
タン樹脂系塗料を、アミン蒸気の触媒作用により、急速
に硬化させる方式であり、ポリオールとイソシアネート
とを主成分とした二液型ウレタン樹脂系塗料を混合し、
溶剤で粘度調整した液状物を、アミン蒸気発生機で発生
させたアミン蒸気を含んだ混合エアによって、一般用の
エアスプレーガンを用いて、霧化し、被塗物に吹き付け
るものである。The above-mentioned coating system is, for example, a system in which a two-pack type urethane resin-based coating material is rapidly cured by the catalytic action of amine vapor, and is a two-pack type urethane resin-based coating material containing a polyol and an isocyanate as main components. Mix
A liquid material whose viscosity has been adjusted with a solvent is atomized by a general air spray gun using mixed air containing amine vapor generated by an amine vapor generator, and is sprayed on an object to be coated.
【０００５】吹きつけられた塗料はアミンの触媒作用に
よって急速に硬化しウレタン樹脂系塗膜が形成される。[0005] The sprayed paint is rapidly cured by the catalytic action of the amine to form a urethane resin-based coating film.
【０００６】本発明者は、先に特開平２−１９４８７１
号及び特開平３−４７５２２号において、硬化促進剤の
存在下で、常温で速やかに硬化する液状物を塗装し、ノ
ズルの詰まり等の問題を有さず、塗装作業性も良好であ
る塗装装置を提案した。これら塗装装置は、所期の目的
を達成することができたのであるが、更に次のとおりの
解決すべき問題点があることが明らかになった。The present inventor has previously described Japanese Patent Application Laid-Open No. 2-194873.
And JP-A-3-47522, a coating apparatus which applies a liquid material which rapidly cures at room temperature in the presence of a curing accelerator, has no problems such as nozzle clogging, and has good coating workability. Suggested. Although these coating apparatuses were able to achieve the intended purpose, it became clear that there were further problems to be solved as follows.
【０００７】[0007]
【発明が解決しようとする課題】上記塗装装置において
は、断面が略楕円であるスプレーパターンで液状物を噴
霧する。典型的には、この塗装装置は、液状物のスプレ
ーパターンの中心軸線が水平方向にあり、その断面の略
楕円の長軸が鉛直方向に位置するように配置されて、横
に水平方向に移動せしめられて（即ち、スプレーパター
ンの断面の略楕円の短軸方向に移動せしめられて）、被
塗物を帯状に塗装する。In the above coating apparatus, the liquid is sprayed in a spray pattern having a substantially elliptical cross section. Typically, this coating apparatus is arranged such that the center axis of the spray pattern of the liquid material is in the horizontal direction, and the major axis of the substantially elliptical cross section thereof is located in the vertical direction, and moves horizontally in the horizontal direction. Then, the object to be coated is coated in a belt shape (that is, moved in the short axis direction of the substantially elliptical cross section of the spray pattern).
【０００８】上記塗装装置においては、スプレーパター
ンの断面が略楕円であるので、ほぼ一定の膜厚を有する
帯状の塗膜を形成することができる。In the above-mentioned coating apparatus, since the cross section of the spray pattern is substantially elliptical, it is possible to form a strip-shaped coating film having a substantially constant film thickness.
【０００９】しかしながら、本件発明者の研究による
と、帯状の塗膜の長手方向の中心軸付近の中央分におい
ては、比較的短時間において、硬化し、乾燥するが、帯
状の塗膜の両側縁、即ち端部においては、例えば２０分
経過後においても十分硬化せず、乾燥しないという問題
があることが明らかになった。However, according to the study of the present inventor, in the central portion near the central axis in the longitudinal direction of the belt-shaped coating film, it hardens and dries in a relatively short time. That is, it has been found that there is a problem that, for example, the end portion does not cure sufficiently even after elapse of 20 minutes and does not dry.
【００１０】本発明者の研究によると、端部において短
時間で硬化、乾燥しない理由は次のとおりである。According to the study of the present inventor, the reason why the end is not cured or dried in a short time is as follows.
【００１１】上記塗装装置においては、硬化促進剤を含
む担体ガスを噴出している担体ガス口がスプレーパター
ンの中心軸方向に向いている。このため、硬化促進剤が
スプレーパターンの中心軸部分に集まり、帯状の塗膜の
中央分においては迅速に硬化、乾燥するが、端部におい
て硬化促進剤が十分に供給されず、迅速に硬化、乾燥し
ないという問題が生じる。[0011] In the above coating apparatus, the carrier gas port from which the carrier gas containing the curing accelerator is jetted faces the center axis direction of the spray pattern. For this reason, the curing accelerator gathers at the center axis portion of the spray pattern, and quickly cures and dries at the center of the belt-shaped coating film, but the curing accelerator is not sufficiently supplied at the end portion, and the curing is rapidly performed. The problem of not drying occurs.
【００１２】この問題を解決するために、担体ガス口が
スプレーパターンの中心軸とほぼ平行に担体ガスを噴出
するように構成したノズルを有する塗装装置を作成し
た。しかし、この塗装装置によっても上記問題を解決す
ることはできなかった。これは、スプレーパターンの中
心軸とほぼ平行に担体ガスを噴出しても、液状体のスプ
レーパターンよって、噴出した担体ガスが内側方向に引
き付けられ、担体ガスが中心軸部分に集まってしまうた
めと理解される。In order to solve this problem, a coating apparatus having a nozzle configured so that the carrier gas port ejects the carrier gas substantially in parallel with the central axis of the spray pattern was prepared. However, the above problem could not be solved by this coating apparatus. This is because, even when the carrier gas is ejected substantially parallel to the center axis of the spray pattern, the ejected carrier gas is attracted inward by the spray pattern of the liquid material, and the carrier gas is collected at the center axis portion. Understood.
【００１３】[0013]
【課題を解決するための手段】本発明によると、上記の
とおりの問題を解決するために、塗料を含む液状物と硬
化促進剤を含む担体ガスとを噴霧して、塗装する塗装装
置において、断面が略楕円であるスプレーパターンで液
状物を噴霧する噴出口と、該噴出口の回りにほぼ等しい
角度間隔で配置され、該スプレーパターンに向けて担体
ガスを噴出する複数個の第１の担体ガス口と、該第１の
担体ガス口の外側でスプレーパターンの断面の楕円の長
軸方向の領域に設けられ、該スプレーパターンの中心軸
線と略平行に担体ガスを噴出する複数個の第２の担体ガ
ス口とを具備することを特徴とする塗装装置が提供され
る。According to the present invention, in order to solve the above-mentioned problems, in a coating apparatus for coating by spraying a liquid material containing a paint and a carrier gas containing a curing accelerator, An ejection port for spraying a liquid material in a spray pattern having a substantially elliptical cross section; and a plurality of first carriers arranged at substantially equal angular intervals around the ejection port for ejecting a carrier gas toward the spray pattern. A gas port and a plurality of second gas outlets provided outside the first carrier gas port in a region in a major axis direction of an ellipse of a cross section of the spray pattern and ejecting the carrier gas substantially in parallel with a center axis of the spray pattern. And a carrier gas port.
【００１４】本発明に使用できる液状物としては、硬化
促進剤の存在下で硬化乾燥できる液状物であればいずれ
も使用できるが、特に常温（０〜４０℃程度）で速やか
に（例えば、３０分以内）に硬化乾燥する液状物に対し
て本発明の効果が大きく発揮される。かかる液状物とし
ては、例えば、アミンを硬化促進剤とするアクリルポリ
オール、ポリエステルポリオール、エポキシポリオール
などのポリオール樹脂とポリイソシアネート架橋剤とか
らなる二液型ウレタン樹脂系塗料などが挙げられる。As the liquid that can be used in the present invention, any liquid can be used as long as it can be cured and dried in the presence of a curing accelerator. In particular, it can be used at room temperature (about 0 to 40 ° C.) quickly (for example, 30 ° C.). The effect of the present invention is greatly exerted on a liquid material which is cured and dried within minutes. Examples of such a liquid material include a two-part urethane resin-based paint composed of a polyol resin such as an acrylic polyol, a polyester polyol, or an epoxy polyol using an amine as a curing accelerator and a polyisocyanate crosslinking agent.
【００１５】本発明に使用できる硬化促進剤は、液状物
の硬化を促進できるものであればよく、特に急速に硬化
を促進でき、かつ蒸気化させやすいものが好ましい。二
液型ウレタン樹脂系塗料の硬化促進剤となるアミンとし
ては、例えば、トリエチルアミン、ジメチルエチルアミ
ン、トリアリルアミン、トリブチルアミン、ジメチルベ
ンジルアミン、ジメチルシクロヘキシルアミン、ジメチ
ルエタノールアミン、ジエチルエタノールアミン、トリ
エタノールアミン、ピリジン、４‐フェニルプロピルピ
リジン、２，４，６‐コリジン、キノリン、イソキノリ
ン、Ｎ‐エチルモルホリン、トリエチレンジアミンなど
の第３級アミンを挙げることができる。また、水蒸気を
硬化促進剤とする塗料も用いることができる。The curing accelerator that can be used in the present invention may be any one that can promote the curing of a liquid material, and particularly preferably one that can rapidly promote the curing and easily vaporize. Examples of the amine that serves as a curing accelerator for the two-part urethane resin paint include, for example, triethylamine, dimethylethylamine, triallylamine, tributylamine, dimethylbenzylamine, dimethylcyclohexylamine, dimethylethanolamine, diethylethanolamine, triethanolamine, Tertiary amines such as pyridine, 4-phenylpropylpyridine, 2,4,6-collidine, quinoline, isoquinoline, N-ethylmorpholine, and triethylenediamine can be mentioned. Further, a paint using steam as a curing accelerator can also be used.
【００１６】本発明において上記硬化促進剤を含有せし
める担体ガスとしては、空気および窒素、二酸化炭素な
どの不活性ガスなどが挙げられる。担体ガス中の硬化促
進剤の濃度は触媒効果が発揮できるよう適宜決定すれば
よいが例えばアミンを硬化促進剤とする場合、通常１〜
８０００ｐｐｍさらには１０〜４０００ｐｐｍの範囲に
あることが好ましい。In the present invention, examples of the carrier gas containing the curing accelerator include air and inert gases such as nitrogen and carbon dioxide. The concentration of the curing accelerator in the carrier gas may be appropriately determined so that the catalytic effect can be exhibited.
It is preferably in the range of 8000 ppm, more preferably 10 to 4000 ppm.
【００１７】[0017]
【作用】液状物が、噴出口から断面が略楕円であるスプ
レーパターンで噴霧される。The liquid material is sprayed from the ejection port in a spray pattern having a substantially elliptical cross section.
【００１８】噴出口の回りにほぼ等しい角度間隔で配置
された複数個の第１の担体ガス口によって、担体ガス
が、該スプレーパターンに向けて噴出される。この第１
の担体ガス口によって、スプレーパターンの中心軸部分
に十分な担体ガスが供給され、塗装された帯状の塗膜の
中央部は、迅速に硬化し乾燥する。A plurality of first carrier gas ports arranged at substantially equal angular intervals around the ejection port eject a carrier gas toward the spray pattern. This first
A sufficient carrier gas is supplied to the center axis portion of the spray pattern by the carrier gas port, and the central portion of the coated strip-shaped coating film is quickly cured and dried.
【００１９】第２の担体ガス口の外側でスプレーパター
ンの断面の楕円の長軸方向の領域に設けられた第２の担
体ガス口によって、担体ガスがスプレーパターンの中心
軸線と略平行に噴出される。この第２の担体ガス口によ
って、スプレーパターンの長軸方向の端部部分に十分な
担体ガスが供給され、塗装された帯状の塗膜の端部も、
迅速に硬化し乾燥する。The carrier gas is ejected substantially parallel to the central axis of the spray pattern by the second carrier gas port provided outside the second carrier gas port and in the longitudinal direction of the ellipse of the cross section of the spray pattern. You. By the second carrier gas port, a sufficient carrier gas is supplied to the end portion in the long axis direction of the spray pattern, and the end portion of the painted strip-shaped coating film is also provided.
Quickly cures and dries.
【００２０】第１及び第２の担体ガス口を具備すること
によって、塗装された帯状の塗膜の全体が、迅速に硬化
し乾燥する。By providing the first and second carrier gas ports, the entire coated band-shaped coating film is quickly cured and dried.
【００２１】[0021]
【実施例】次に、添付図面を参照して、本発明の好適実
施例に従う塗装装置を説明する。まず、図１乃至図３を
参照して、本発明の第１の実施例に従う塗装装置を説明
する。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a coating apparatus according to a preferred embodiment of the present invention. First, a coating apparatus according to a first embodiment of the present invention will be described with reference to FIGS.
【００２２】図１は、本発明の第１の好適実施例に従う
塗装装置装置１０の噴霧口部分の断面図であり、図２
は、その正面図であり、図３は、図１の塗装装置のカバ
ー１６を外した状態の正面図である。FIG. 1 is a sectional view of a spray port portion of a coating apparatus 10 according to a first preferred embodiment of the present invention, and FIG.
FIG. 3 is a front view of the coating apparatus of FIG. 1 with the cover 16 removed.
【００２３】この塗装装置１０は、前述の特開平３−４
７５５２号で提案した装置に、付加的な担体ガス口を加
えた構造を有する。The coating apparatus 10 is the same as that of the above-mentioned Japanese Patent Application Laid-Open
It has a structure in which an additional carrier gas port is added to the device proposed in U.S. Pat.
【００２４】更に説明すると、図１において、液状物が
噴出口１２から噴出し、圧縮気体（例えば、圧縮空気）
が、圧縮気体の連通路を通って、液状物の噴出口１２の
近傍部に設けられた吐出口１４から噴射し、噴射された
圧縮空気が噴出口１２の周辺を囲む。更に、噴出口１２
から噴出するスプレーパターンがカバー１６の開口部２
０を介して進む。この開口部２０は、スプレーパターン
が乱れることなく通過することができるように、スプレ
ーパターンよりも僅かに大きい略楕円形状を有する。カ
バー１６内には、吐出口１４から吐出された圧縮空気が
充満し、開口部２０からスプレーパターンの外側を包む
ように噴出する。More specifically, referring to FIG. 1, a liquid material is ejected from an ejection port 12 and compressed gas (for example, compressed air)
Are ejected from a discharge port 14 provided in the vicinity of the ejection port 12 of the liquid material through the communication path of the compressed gas, and the ejected compressed air surrounds the periphery of the ejection port 12. Further, the spout 12
Is sprayed from the opening 2 of the cover 16.
Proceed through 0. The opening 20 has a substantially elliptical shape slightly larger than the spray pattern so that the spray pattern can pass without being disturbed. The inside of the cover 16 is filled with the compressed air discharged from the discharge port 14 and blows out from the opening 20 so as to wrap the outside of the spray pattern.
【００２５】液状物が噴霧される噴出口１２は、例え
ば、横幅ａが４〜５ｍｍであり、縦幅ｂが、１０〜１２
ｍｍである。圧縮気体が噴射する吐出口１４は、例え
ば、１６個設けられており、これらの吐出口１４の直径
は例えば０．８ｍｍφである。The jet port 12 into which the liquid is sprayed has, for example, a width a of 4 to 5 mm and a vertical width b of 10 to 12 mm.
mm. For example, 16 outlets 14 for injecting the compressed gas are provided, and the diameter of these outlets 14 is, for example, 0.8 mmφ.
【００２６】この噴出口１２から噴霧される液状物のス
プレーパターンの断面は、図１の上下方向に長軸を有す
る略楕円である。The cross section of the spray pattern of the liquid material sprayed from the jet port 12 is a substantially ellipse having a long axis in the vertical direction in FIG.
【００２７】噴出口１２から噴出し、カバー１６の開口
部２０を通過した液状物のスプレーパターンに、複数個
の第１の担体ガス口１８と複数個の第２の担体ガス口２
２から噴霧された硬化促進剤を含有する担体ガスが混入
され、この混合物が被塗物に塗着し、塗膜を形成し、硬
化する。A plurality of first carrier gas ports 18 and a plurality of second carrier gas ports 2 are sprayed from the jet port 12 and sprayed on the liquid material having passed through the opening 20 of the cover 16.
A carrier gas containing a curing accelerator sprayed from 2 is mixed in, and this mixture is applied to an object to be coated, forms a coating film, and is cured.
【００２８】複数個の第１の担体ガス口１８は、例え
ば、カバー１６の回りに一列で等間隔に６０個配置され
ており、これらの第１の担体ガス口１８の直径は、０．
５〜０．８ｍｍφである。第１の担体ガス口１８からの
吐出方向の、液状物のスプレーパターンの中心軸線に対
する好ましい角度θａは、０〜９０°であり、更に好ま
しい角度は、０〜４０°である。The plurality of first carrier gas ports 18 are arranged, for example, at equal intervals around the cover 16 in a line, and the diameter of each of the first carrier gas ports 18 is 0.1 mm.
5 to 0.8 mmφ. A preferable angle θa of the discharge direction from the first carrier gas port 18 with respect to the center axis of the spray pattern of the liquid material is 0 to 90 °, and a more preferable angle is 0 to 40 °.
【００２９】第２の担体ガス口２２は、例えば、第１の
組みの担体ガス口１８の外側に図１の上下の領域に二列
で等間隔に１７個配置されている。従って、第２の担体
ガス口２２は、スプレーパターンの長軸方向の領域に位
置することになる。これらの第２の担体ガス口２２の直
径は、０．５〜０．８ｍｍφである。第２の担体ガス口
２２の吐出方向は液状物のスプレーパターンの中心軸線
と略平行である。For example, 17 second carrier gas ports 22 are arranged at equal intervals in two rows in the upper and lower regions of FIG. 1 outside the first set of carrier gas ports 18. Therefore, the second carrier gas port 22 is located in a region in the long axis direction of the spray pattern. The diameter of these second carrier gas ports 22 is 0.5 to 0.8 mmφ. The discharge direction of the second carrier gas port 22 is substantially parallel to the center axis of the spray pattern of the liquid material.
【００３０】図１乃至図３に示した通りの塗装装置を用
いた塗装例を以下に述べる。A coating example using the coating apparatus as shown in FIGS. 1 to 3 will be described below.
【００３１】液状物としてアクリルポリオールとポリイ
ソシアネート架橋剤とを主成分とする、アミンの存在下
で常温で急速に硬化する二液型アクリルウレタン樹脂系
塗料を溶剤で粘度１５秒／フォードカップＮｏ．４に粘
度調整して液状物を生成後、この液状物に１００ｋｇ／
ｃｍ２の圧力をプランジャーポンプでかけ、噴出口まで
圧送した。A two-component acrylic urethane resin-based coating material, which mainly contains an acrylic polyol and a polyisocyanate crosslinking agent as a liquid material and rapidly cures at room temperature in the presence of an amine, has a solvent having a viscosity of 15 seconds / Ford cup no. After the viscosity was adjusted to 4, a liquid material was produced, and then 100 kg /
A pressure of 2 cm 2 was applied by a plunger pump and pumped to the spout.
【００３２】またコンプレッサーによって圧縮したエア
圧０．３ｋｇ／ｃｍ２の圧縮空気を吐出口１４の連通路
に送った。Further, compressed air having an air pressure of 0.3 kg / cm 2 , which was compressed by a compressor, was sent to the communication passage of the discharge port 14.
【００３３】さらに担体ガスとして硬化促進剤であるジ
メチルエタノールアミン蒸気を２０００〜４０００ｐｐ
ｍ含有する空気を０．５ｋｇ／ｃｍ２の圧力をかけて、
第１及び第２の担体ガス口１８及び２２に送った。Further, dimethylethanolamine vapor as a hardening accelerator is used as a carrier gas at 2000 to 4000 pp.
m containing air at a pressure of 0.5 kg / cm 2 ,
It was sent to the first and second carrier gas ports 18 and 22.
【００３４】なお、吐出口１４の圧力０．３ｋｇ／ｃｍ
２の圧縮空気はスプレーのＯＮ‐ｏｆｆ（図示してな
い）に関係なく、出しっ放しの状態とし、一方担体ガス
は、スプレーのＯＮ‐ｏｆｆに同調し、スプレーＯＮの
とき担体ガスが噴出しスプレーｏｆｆのときは担体ガス
の噴出は停止される。The pressure of the discharge port 14 is 0.3 kg / cm.
2 of compressed air regardless of the spray ON-off (not shown), and the state of the leave out, whereas the carrier gas is tuned to ON-off of the spray, the carrier gas is ejected when the spray ON When the spray is off, the ejection of the carrier gas is stopped.
【００３５】液状物吐出量６００〜１２００ｃｃ／分の
条件で塗装膜厚５０〜１００μｍとなるように塗装し
た。スプレーパターンは、スプレー距離３００ｍｍでパ
ターン幅が３５０ｍｍとなるものを使用した。The coating was performed so as to have a coating thickness of 50 to 100 μm under the conditions of a liquid discharge rate of 600 to 1200 cc / min. The spray pattern used had a pattern width of 350 mm at a spray distance of 300 mm.
【００３６】上記のとおりの条件で帯状に塗装して塗膜
の中央部と端部との硬化速度及び乾燥性の差異を目視に
よって判定した。その結果、中央部と端部との硬化速度
及び乾燥性の差異はほとんどなかった。The coating was performed in the form of a strip under the above conditions, and the difference in curing speed and drying property between the center and the end of the coating film was visually determined. As a result, there was almost no difference between the curing speed and the drying property between the center and the end.
【００３７】次に、図４及び図５を参照して、本発明の
第２の実施例に従う塗装装置を説明する。Next, a coating apparatus according to a second embodiment of the present invention will be described with reference to FIGS.
【００３８】この第２の実施例に従う塗装装置は、上記
の第１の実施例に従う塗装装置に、付加的な第３の担体
ガス口２４を加えた構造を有する。The coating apparatus according to the second embodiment has a structure in which an additional third carrier gas port 24 is added to the coating apparatus according to the first embodiment.
【００３９】更に説明すると、図４及び図５に示したと
おり、この塗装装置においては、液状物が噴出口１２か
ら噴出し、圧縮気体が吐出口１４から噴射し、噴射され
た圧縮空気が噴出口１２の周辺を囲み、開口部２０から
外に噴出する。カバー１６の開口部２０を通過した液状
物のスプレーパターンに、複数個の第１の担体ガス口１
８と複数個の第２の担体ガス口２２から噴霧される。こ
れらの部材は、第１の実施例を同様に構成される。More specifically, as shown in FIGS. 4 and 5, in this coating apparatus, a liquid material is ejected from an ejection port 12, a compressed gas is ejected from an ejection port 14, and the injected compressed air is ejected. It surrounds the periphery of the outlet 12 and blows out from the opening 20. The spray pattern of the liquid material passing through the opening 20 of the cover 16 includes a plurality of first carrier gas ports 1.
8 and a plurality of second carrier gas ports 22 are sprayed. These members are configured similarly to the first embodiment.
【００４０】この塗装装置は、第２の担体ガス口２２の
外側に第３の担体ガス口２４が設けられている。第３の
担体ガス口２４は、例えば、第２の担体ガス口２２の外
側に図４の上下の領域に２列で等間隔に１３個配置され
ている。従って、第３の担体ガス口２４は、スプレーパ
ターンの長軸方向の領域に位置する。これらの第３の担
体ガス口２４の直径は、０．５〜０．８ｍｍφである。
第３の担体ガス口２４の吐出方向は液状物のスプレーパ
ターンの軸線方向に対する外側方向への好ましい角度θ
ｂは、０〜６０°であり、更に好ましい角度は、０〜３
０°である。In this coating apparatus, a third carrier gas port 24 is provided outside the second carrier gas port 22. For example, thirteen third carrier gas ports 24 are arranged at equal intervals in two rows in the upper and lower regions of FIG. 4 outside the second carrier gas ports 22. Therefore, the third carrier gas port 24 is located in a region in the long axis direction of the spray pattern. The diameter of these third carrier gas ports 24 is 0.5 to 0.8 mmφ.
The discharge direction of the third carrier gas port 24 is a preferable angle θ in the outward direction with respect to the axial direction of the spray pattern of the liquid material.
b is 0 to 60 °, and more preferable angle is 0 to 3
0 °.
【００４１】上記のとおりの第１の実施例と同様の条件
において、第２の実施例に従う塗装装置を使用して、帯
状に塗装して、塗膜の中央部と端部との硬化速度及び乾
燥性の差異を目視によって判定した。その結果、中央部
と端部との硬化速度及び乾燥性の差異は全くなかった。Under the same conditions as in the first embodiment as described above, using the coating apparatus according to the second embodiment, the film is coated in a belt shape, and the curing speed at the center and the end of the coating film and The difference in dryness was visually determined. As a result, there was no difference between the curing rate and the drying property between the center and the end.
【００４２】[0042]
【発明の効果】本発明に従うと、塗装された帯状の塗膜
の全体が、迅速に硬化し乾燥する、硬化促進剤の存在下
で迅速に硬化する液状物に適したスプレー塗装装置を提
供することができる。According to the present invention, there is provided a spray coating apparatus suitable for a liquid material in which the entire coated strip-shaped coating film is rapidly cured and dried, and is rapidly cured in the presence of a curing accelerator. be able to.
【図１】図１は、本発明の第１の実施例に従う塗装装置
の横断面図。FIG. 1 is a cross-sectional view of a coating apparatus according to a first embodiment of the present invention.
【図２】図２は、図１の塗装装置の正面図。FIG. 2 is a front view of the coating apparatus of FIG. 1;
【図３】図３は、図１の塗装装置のカバーを除去した状
態の正面図。FIG. 3 is a front view of the coating apparatus of FIG. 1 with a cover removed.
【図４】図４は、本発明の第２の実施例に従う塗装装置
の横断面図。FIG. 4 is a cross-sectional view of a coating apparatus according to a second embodiment of the present invention.
【図５】図５は、図４の塗装装置の正面図。FIG. 5 is a front view of the coating apparatus of FIG. 4;
１０ 塗装装置 １２ 噴出口 １４ 吐出口 １６ カバー １８ 第１の担体ガス口 ２２ 第２の担体ガス口 ２４ 第３の担体ガス口 DESCRIPTION OF SYMBOLS 10 Coating apparatus 12 Spout port 14 Discharge port 16 Cover 18 1st carrier gas port 22 2nd carrier gas port 24 3rd carrier gas port
Claims (2)
体ガスとを噴霧して、塗装する塗装装置において、 断面が略楕円であるスプレーパターンで液状物を噴霧す
る噴出口と、 該噴出口の回りにほぼ等しい角度間隔で配置され、該ス
プレーパターンに向けて担体ガスを噴出する複数個の第
１の担体ガス口と、 該第１の担体ガス口の外側でスプレーパターンの断面の
楕円の長軸方向の領域に設けられ、該スプレーパターン
の中心軸線と略平行に担体ガスを噴出する複数個の第２
の担体ガス口とを具備することを特徴とする塗装装置。1. A coating apparatus for spraying a liquid material containing a coating material and a carrier gas containing a curing accelerator to spray the liquid material, comprising: a spray port for spraying the liquid material in a spray pattern having a substantially elliptical cross section; A plurality of first carrier gas ports arranged at substantially equal angular intervals around the outlet to eject carrier gas toward the spray pattern; and an ellipse of a cross section of the spray pattern outside the first carrier gas port. A plurality of second nozzles that are provided in a region in the major axis direction and eject carrier gas substantially in parallel with the central axis of the spray pattern.
And a carrier gas port.
ターンの楕円の長軸方向領域に設けられ、該スプレーパ
ターンの中心軸線から離れる方向に担体ガスを噴出する
複数個の第３の担体ガス口を具備する請求項１記載の塗
装装置。2. A plurality of third carriers which are provided outside the second carrier gas port in the major axis direction of the ellipse of the spray pattern and eject carrier gas in a direction away from the center axis of the spray pattern. The coating apparatus according to claim 1, further comprising a gas port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08303992A JP3224263B2 (en) | 1992-03-06 | 1992-03-06 | Painting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08303992A JP3224263B2 (en) | 1992-03-06 | 1992-03-06 | Painting equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07877A JPH07877A (en) | 1995-01-06 |
| JP3224263B2 true JP3224263B2 (en) | 2001-10-29 |
Family
ID=13791076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP08303992A Expired - Fee Related JP3224263B2 (en) | 1992-03-06 | 1992-03-06 | Painting equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3224263B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4609806B2 (en) * | 2000-09-29 | 2011-01-12 | 株式会社サンツール | Curtain fiber spray applicator |
| JP6429703B2 (en) * | 2015-03-27 | 2018-11-28 | 株式会社メンテック | Nozzle device, chemical solution spraying method and chemical solution using the same |
-
1992
- 1992-03-06 JP JP08303992A patent/JP3224263B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07877A (en) | 1995-01-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2001704C (en) | Mold release systems | |
| US3759450A (en) | Fluid mixing and spraying apparatus | |
| EP3265238B1 (en) | Spray gun with a hollow needle to assure gravity feed and method for use thereof | |
| JP2019084533A (en) | Spray gun and spraying method | |
| NL8403591A (en) | METHOD FOR APPLYING A FILM TO A SUBSTRATE | |
| CN106140514A (en) | Portable application system for elastomeric material | |
| JPH041666B2 (en) | ||
| JP3224263B2 (en) | Painting equipment | |
| KR20040030856A (en) | Air-assisted, low pressure spray equipment having an improved spray nozzle | |
| US5800867A (en) | Deflection control of liquid or powder stream during dispensing | |
| KR101454042B1 (en) | Method of applying liquid thin film after aqueous pretreatment of surface to be coated | |
| CN107530722B (en) | Spray gun with hollow needle and single or two stage nozzle and method of using the same | |
| JP5378238B2 (en) | Painting equipment | |
| CA1210651A (en) | Electrostatic drying process | |
| US6582773B2 (en) | Method and apparatus for treating substrate plastic parts to accept paint without using adhesion promoters | |
| JPH0661496B2 (en) | Painting method and painting equipment | |
| JPH02194871A (en) | Coating apparatus | |
| JPH02203961A (en) | Painting method | |
| WO1997018042A1 (en) | Spray dispenser and system for spraying viscous liquids | |
| KR101764676B1 (en) | revolving spray nozzle for painting and painting method of pipe | |
| US4581244A (en) | Curing of surface coatings | |
| JPS5745370A (en) | Method for mixing and spraying different kind of liquid | |
| JPH01270980A (en) | Method for applying urethane resin paint | |
| US20110245411A1 (en) | Method for producing sprayable lacquer | |
| JPH051325Y2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |