JPH07880A - Apparatus for powder coating - Google Patents
Apparatus for powder coatingInfo
- Publication number
- JPH07880A JPH07880A JP10516893A JP10516893A JPH07880A JP H07880 A JPH07880 A JP H07880A JP 10516893 A JP10516893 A JP 10516893A JP 10516893 A JP10516893 A JP 10516893A JP H07880 A JPH07880 A JP H07880A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- coated
- air pressure
- spray gun
- cpu
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/14—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
- B05B7/1404—Arrangements for supplying particulate material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
- B05B12/12—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to conditions of ambient medium or target, e.g. humidity, temperature position or movement of the target relative to the spray apparatus
- B05B12/122—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to conditions of ambient medium or target, e.g. humidity, temperature position or movement of the target relative to the spray apparatus responsive to presence or shape of target
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/14—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
- B05B7/1404—Arrangements for supplying particulate material
- B05B7/1472—Powder extracted from a powder container in a direction substantially opposite to gravity by a suction device dipped into the powder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/14—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
- B05B7/1404—Arrangements for supplying particulate material
- B05B7/1477—Arrangements for supplying particulate material means for supplying to several spray apparatus
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Electrostatic Spraying Apparatus (AREA)
- Spray Control Apparatus (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は立体的被塗物の塗布面の
形状及びその面積に対して必要なる粉体の量を自動的に
制御し、スプレイ塗布する装置に係るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for spray-coating by automatically controlling the amount of powder required for the shape and area of the coating surface of a three-dimensional object to be coated.
【０００２】[0002]
【従来の技術】コンベア上を移動する立体的被塗物面に
粉体塗料などを塗布する際には、従来、被塗物の移動し
てくるある位置にセンサを設置してその位置を検出し、
自動スプレイガンにより、予め設定した一定量の粉体を
スプレイし均等に塗布していた。その塗布面がフラット
である場合には、問題はないが、立体的被塗物の形状が
複雑であつて、その面上に凹凸、欠除部又は塗布不要部
などのある場合には、不均一の厚さに塗布されたばかり
ではなく、余剰の粉体塗料を吐出し、即ち浪費すること
が多かった。例えば、図２に見られるような立体的な被
塗物（０）面上に粉体を塗布する場合には、図５に見ら
れるように、塗布面積の投影面積（被塗物の移動方向に
平行なる面即ちノズルのスプレイ方向に対し直角なる面
に対する実体の面積の投影面積）の疎密に拘らず、常に
一定量の粉体を均等に吐出スプレイしていた。従って、
吐出方向に直角なる平坦面に対する塗着量は最も多く即
ち厚く（Ｔａ）塗着し、また、ある角度（θ）傾斜した
面に対してはｃｏｓθの比で薄く（Ｔｃ）塗着し、その
角度の大なるに従って益々薄く（Ｔｂ）塗布されていた
のである。また、上記薄い部分を、必要とする厚さに塗
布するためには、図６−（Ａ）に見られるように、他の
面部には余剰の吐出（Ｍａ，Ｍｂ）を行うことになり、
またＣｈ．２におけるが如く、被塗面上の欠除部又は塗
布不要部などのある場合には、更に多くの無駄な吐出
（Ｍｃ，Ｍｂ）を行って粉体塗料を甚だしく浪費してい
たのである。2. Description of the Related Art Conventionally, when a powder paint or the like is applied to a three-dimensional object surface moving on a conveyor, a sensor is conventionally installed at a certain position where the object moves and the position is detected. Then
An automatic spray gun sprayed a predetermined amount of powder, which was applied evenly. If the coating surface is flat, there is no problem, but if the three-dimensional object to be coated has a complicated shape and there are irregularities, cutout portions or unnecessary coating portions on the surface, this is not a problem. Not only was it applied to a uniform thickness, but excess powder paint was often discharged, that is, wasted. For example, when the powder is applied on the three-dimensional object (0) surface as shown in FIG. 2, as shown in FIG. 5, the projected area of the application area (moving direction of the object to be coated) A uniform amount of powder was always uniformly sprayed regardless of the density of the projected area of the substance with respect to the surface parallel to the surface, ie, the surface orthogonal to the spray direction of the nozzle. Therefore,
The amount of coating on the flat surface perpendicular to the ejection direction is the largest, that is, the coating is thick (Ta), and on the surface inclined at a certain angle (θ), the coating is thin (Tc) at the ratio of cos θ. It was applied thinner and thinner (Tb) as the angle increased. Further, in order to apply the above-mentioned thin portion to a required thickness, as shown in FIG. 6- (A), excess discharge (Ma, Mb) is performed on the other surface portion,
In addition, Ch. In the case where there is a cutout portion or a coating unnecessary portion on the surface to be coated as in the case of 2, the powder coating was extremely wasted by performing more wasteful discharge (Mc, Mb).
【０００３】[0003]
【発明が解決しようとする課題】本発明は、上記従来の
技術の項にて述べたような、コンベア上を移動する立体
的被塗物に対する粉体塗布作業において、立体的被塗物
面上の凹凸部や欠除部に対し、厚薄の差の甚だしい塗布
膜が施工され、又は、無駄な粉体塗料が多量に消費され
ることを解決しようとすることを課題とするものであ
る。DISCLOSURE OF THE INVENTION The present invention provides a three-dimensional object to be coated on a three-dimensional object surface in a powder coating operation for a three-dimensional object to be moved on a conveyor as described in the section of the prior art. It is an object of the present invention to solve a problem that a coating film having a large difference in thickness is applied to the uneven portion or the cutout portion, or a large amount of waste powder coating material is consumed.
【０００４】[0004]
【課題を解決するための手段】本発明の要旨は、粉体ス
プレイノズルからの粉体の吐出量を、ある速度の下にて
移動するコンベア上の立体的被塗物に対し、その凹凸の
形状の表面積の、粉体吐出方向に直角なる面に対して投
影した面積の疎密のカーブに対応し、そのプログラムを
組み込んだＣＰＵにより指令される電空変換式エア圧制
御器によりエアエジェクトポンプからの粉体の空気輸送
量を制御し、それによって粉体スプレイガンよりの吐出
量を適正に制御する装置である。Means for Solving the Problems The gist of the present invention is to provide a three-dimensional object to be coated on a conveyor which moves at a certain speed with a discharge amount of powder from a powder spray nozzle, and Corresponding to the sparse and dense curve of the surface area of the shape projected onto the surface perpendicular to the powder discharge direction, the air-eject pump is controlled by the electropneumatic conversion air pressure controller instructed by the CPU incorporating the program. This is a device for controlling the amount of air transportation of the powder, and thereby appropriately controlling the discharge amount from the powder spray gun.
【０００５】先ず、本発明の装置の構成について説明す
る。図１を参照されたい。同図は本装置構成の側面図で
ある。粉体スプレイガン（１，１Ａ）は複数とし、それ
らが縦１列に配設されるものを示す。これら粉体スプレ
イガン（１，１Ａ．以下複数目の符号については省略す
る）に対して粉体即ち粉体と空気との混合体（ＰＡ）の
供給配管（２）が接続され、またその上流側はエジェク
トポンプ（３）に接続される。該ポンプに直結される粉
体供給管（５）の他端は流動床式粉体供給タンク（６）
内部に開口している。また上記エアエジェクトポンプ
（３）への加圧エアの供給配管（８）は加圧エア源（１
５）に接続され、またそれらの間には加圧エア源（１
５）よりソレノイドバルブ（１１）、電空変換式エア圧
制御器（１０）及びエア圧検出器（９）の順に配設され
る。そしてこれら電気機器はそれぞれＣＰＵ（中央処理
装置）に配線接続され、また、被塗物（０）に対する位
置検出器（２５）、移動距離検出器（２６）及びエア圧
検出器（９）等も上記ＣＰＵに配線接続される。First, the structure of the apparatus of the present invention will be described. See FIG. The figure is a side view of the configuration of the present apparatus. A plurality of powder spray guns (1, 1A) are shown, and these are arranged in one vertical column. A supply pipe (2) for powder, that is, a mixture of powder and air (PA) (2) is connected to these powder spray guns (1, 1A; hereinafter, a plurality of reference numerals will be omitted), and upstream thereof. The side is connected to the eject pump (3). The other end of the powder supply pipe (5) directly connected to the pump has a fluidized bed powder supply tank (6)
It has an opening inside. Further, the supply pipe (8) for supplying the compressed air to the air eject pump (3) is connected to the compressed air source (1
5) and between them a source of pressurized air (1
From 5), the solenoid valve (11), the electropneumatic conversion type air pressure controller (10) and the air pressure detector (9) are arranged in this order. Each of these electric devices is connected to a CPU (central processing unit) by wiring, and a position detector (25), a movement distance detector (26), an air pressure detector (9), etc. for the object to be coated (0) are also provided. Wired to the CPU.
【０００６】[0006]
【作用】先ず、作動前に、被塗物に対する塗布チャンネ
ル（Ｃｈ．１，Ｃｈ．２）を図２に示す如く決め、それ
ぞれのチャンネルを担当する各ガンノズル（１，１Ａ）
の吐出量のプログラムをＣＰＵに入力する。例えば同図
に見られるように、凹凸部及び欠除部のある被塗物
（０）面上に対し、各ガンノズル（１，１Ａ）の担当す
る各チャンネル（Ｃｈ．１，Ｃｈ．２）を決め、立体的
被塗物の形状の各部面に対応す各ガンノズルの吐出量即
ち粉体を空気輸送するエジェクトエア量を、それぞれ制
御するように、電空変換式空エア制御器（１０）を作動
せしめるプログラムをＣＰＵに入力するのである。First, before operation, the coating channels (Ch.1, Ch.2) for the object to be coated are determined as shown in Fig. 2, and the gun nozzles (1, 1A) in charge of the respective channels are determined.
The program of the discharge amount of is input to the CPU. For example, as shown in the figure, the respective channels (Ch.1, Ch.2) in charge of the respective gun nozzles (1, 1A) are provided on the surface (0) of the object to be coated having the uneven portion and the cutout portion. In order to control the discharge amount of each gun nozzle corresponding to each surface of the three-dimensional object to be coated, that is, the eject air amount for pneumatically transporting the powder, the electro-pneumatic conversion type air air controller (10) is set. The program to operate is input to the CPU.
【０００７】例えば、図２に見られるような立体的被塗
物（０）の場合、各塗布チャンネル（Ｃｈ．１，Ｃｈ．
２）上の、図３（Ａ）に示すような塗布面積（０ａ，０
ｂ，０ｃ，０ｄ及び０ｅ）とすると、それらの塗布すべ
き粉体の量は、上記平面及び立体的各塗布面の面積を、
粉体スプレイガンノズルの吐出方向に対し直角なる面上
に対して投影したカーブ即ち図３の（Ｂ）及び（Ｃ）の
如くなる。これらの塗布必要量は、実際の被塗物面の各
部の面積に、ほぼ正比例するものであり、これらのプロ
グラムを先ずＣＰＵに入力しておくのである。For example, in the case of the three-dimensional object (0) as shown in FIG. 2, each coating channel (Ch.1, Ch.
2) The coating area (0a, 0) as shown in FIG.
b, 0c, 0d and 0e), the amount of the powder to be applied is the area of the above-mentioned plane and three-dimensional application surface,
Curves projected onto a surface perpendicular to the discharge direction of the powder spray gun nozzle, that is, as shown in FIGS. 3B and 3C. These required coating amounts are almost directly proportional to the actual area of each part of the surface of the article to be coated, and these programs are first input to the CPU.
【０００８】再び図１を参照されたい。作動開始と同時
に、スタート位置検出（２５）及びそれよりの移動距離
検出（２６）により、上記プログラムは計算されて、エ
ジェクトエア源（１５）からの配管（２）上のソレノイ
ドバルブ（１１）が開き、次いで各塗布チャンネル（Ｃ
ｈ．１，Ｃｈ．２）毎に、上記エジェクトエア（Ａｅ）
の圧力を上記入力したプログラムにより電空変換式エア
圧制御器（１０）により制御し、その制御された加圧エ
アがエジェクトポンプ（３）内に入ってエジェクトし、
その変動したエジェクトエアの速度に比例して、流動床
式粉体供給タンク（６）内の粉体を制御しつつ吸い込
み、その粉体と空気との混合体（ＰＡ）を粉体スプレイ
ガン（１）内に送り込み、そのノズルより立体的塗布面
の各部に適正なる量の粉体をスプレイするのである。Please refer to FIG. 1 again. Simultaneously with the start of operation, the program is calculated by the start position detection (25) and the movement distance detection (26) from the start position detection (25), and the solenoid valve (11) on the pipe (2) from the eject air source (15) is released. Open, then each coating channel (C
h. 1, Ch. 2) For each of the above, eject air (Ae)
Is controlled by the electro-pneumatic conversion type air pressure controller (10) according to the program inputted above, and the controlled pressurized air enters the eject pump (3) and ejects.
The powder in the fluidized bed type powder supply tank (6) is controlled and sucked in proportion to the changed ejecting air speed, and the mixture (PA) of the powder and air is mixed with the powder spray gun ( 1) It is sent into the inside, and an appropriate amount of powder is sprayed from the nozzle to each part of the three-dimensional coating surface.
【０００９】上記立体的被塗物（０）の各形状部面上に
対しスプレイされる場合の粉体の吐出量は制御により変
動して図３に示す如くなる。同図の（Ａ）図は被塗物
（０）の上面図である。粉体スプレイガンノズル（１，
１Ａ）よりの吐出方向に対して直角のフラット面（０
ａ，０ｄ）に対しては、スプレイされる粉体は最も効率
よく塗着するので、その面積を基準とし１とする。上記
フラット面（０ａ）に継がる４分の１円筒面（０ｂ）の
面においては、その継ぎ目における接線と上記粉体スプ
レイガンノズルの吐出方向とは平行に近く、投影の単位
面積当りにおける実物の曲面面積は、投影面上に単位面
積当り計算すると、上記基準１の約４．４倍となる。ま
た、上記円筒面に接続する傾斜面（０ｃ）においては、
傾斜角度３０度とした場合、上記基準１に対して約１．
１５倍となる。The amount of powder discharged when sprayed onto the surface of each shape of the three-dimensional object (0) varies depending on the control, as shown in FIG. FIG. 7A is a top view of the article to be coated (0). Powder spray gun nozzle (1,
1A) is a flat surface (0
For a, 0d), the powder to be sprayed is most efficiently applied, and therefore the area is set to 1 as a reference. On the surface of the quarter-cylindrical surface (0b) connected to the flat surface (0a), the tangent line at the seam and the discharge direction of the powder spray gun nozzle are nearly parallel, and the actual product per unit area of projection is The surface area of the curved surface is about 4.4 times the standard 1 when calculated per unit area on the projection surface. Further, in the inclined surface (0c) connected to the cylindrical surface,
When the inclination angle is 30 degrees, about 1.
It will be 15 times.
【００１０】上記のように、立体的被塗物（０）各部の
面積の投影面積に比例して、粉体の量を吐出スプレイす
れば、（図３−（Ｃ））実際の被塗物面上に、ほぼ均一
な塗布層が塗着されることになるのである。上記は塗布
チャンネル１について説明したが、チャンネル２におい
ては、図４−（Ａ）に示すように上記形状に欠除部０ｅ
が追加されたもので、それらの投影面積及び粉体吐出量
を、図４−（Ｂ）に示す。As described above, if the amount of powder is sprayed in proportion to the projected area of the area of each part of the three-dimensional object (0) (FIG. 3- (C)), the actual object A substantially uniform coating layer is applied on the surface. Although the coating channel 1 has been described above, the channel 2 has the cutout portion 0e having the above-described shape as shown in FIG.
Is added, and the projected area and the powder discharge amount thereof are shown in FIG. 4- (B).
【００１１】また、被塗物（０）上の粉体噴出方向に平
行の部分（０ｓ）に対しては、上記円筒面（０ｂ）の接
続部におけるが如く、粉体の噴出量をその奥行の長さに
比例して上げてやればよい。その場合、粉体に静電気を
帯電せしめておけば、粉体は横方向よりその被塗面（Ｏ
ｓ）に対して、より効果的に塗着する。上記帯電方式は
従来のコロナピン式の外部帯電式でもよいが、同じコロ
ナピンによる内部帯電式即ち粉体スプレイガンに供給さ
れる前の、即ち粉体空気輸送管路上においてコロナピン
による帯電即ち内部帯電式又は同じく輸送管路上におい
て摩擦式による内部帯電式を採用すれば、より均一的に
塗着することができる。理由は外部帯電式におけるが如
き、電気力線の集中による偏向塗着が避けられるからで
ある。For the portion (0s) parallel to the powder ejection direction on the object to be coated (0), the ejection amount of the powder is set to the depth as in the connecting portion of the cylindrical surface (0b). It should be raised in proportion to the length of. In that case, if the powder is charged with static electricity, the powder is laterally applied to the surface to be coated (O
It applies more effectively to s). The charging method may be a conventional corona pin type external charging type, but the same corona pin type internal charging type, that is, before being supplied to the powder spray gun, that is, charging by corona pins on the powder air transportation pipeline, that is, internal charging type or Similarly, if an internal charging method based on friction is used on the transportation pipeline, the coating can be applied more uniformly. The reason is that deflection coating due to concentration of lines of electric force can be avoided as in the external charging type.
【００１２】なお、図１上のエア圧力検出器（９）は、
電空変換式エア圧制御装置（１０）により制御されたエ
ア圧を検出し、それを表示するためのものである。同図
ではその表示を中央管理装置（ＣＰＵ）の位置にて見ら
れるように表示器（２９）にＣＰＵ（２０）を介して電
気接続されている。また、移動距離検出器（２６）は、
先ず被塗物（０）のスタート位置を検出（２５）して、
その位置よりの移動した距離を検出するものである。実
際的にはマトリックス式が適切である。即ちマトリック
ス式円盤の回転軸を、コンベアの駆動軸又は従動軸上に
直結し、該円盤上にあけられた多数の孔を通して発信さ
れるパルス的光信号を検出して、その移動距離を測定す
るものである。The air pressure detector (9) shown in FIG.
This is for detecting the air pressure controlled by the electro-pneumatic conversion type air pressure control device (10) and displaying it. In the figure, the display is electrically connected through the CPU (20) so that the display can be seen at the position of the central control unit (CPU). Further, the movement distance detector (26) is
First, the start position of the object to be coated (0) is detected (25),
The distance moved from that position is detected. In practice, the matrix formula is suitable. That is, the rotating shaft of the matrix type disc is directly connected to the drive shaft or the driven shaft of the conveyor, and the pulsed optical signal transmitted through a large number of holes formed on the disc is detected to measure the moving distance. It is a thing.
【００１３】[0013]
【発明の効果】従来、立体的被塗物の塗布面上の凹凸部
又は／及び欠除部に対する粉体塗布は、すべて粉体スプ
レイガンノズルよりの一定量の均等塗布が行われ、従来
の技術の項にて述べたように、塗布層の厚さの不均一の
生ずることは勿論、必要以上に無駄な粉体を吐出スプレ
イしていたのである。本発明の装置によれば、作用の項
にて詳細に説明したように、被塗物面上の凹凸部又は／
及び欠除部に対し、ＣＰＵ（中央処理装置）とそれに接
続される電空変換式エア圧制御装置とを介して、自動的
に被塗物の塗布面の形状に対応した適正必要量の粉体が
スプレイガンノズルより吐出スプレイして、より経済的
に、かつ均一厚の塗布層をもって被塗物面を塗布するこ
とができるのである。According to the conventional technique, the powder coating is applied uniformly to the uneven portion and / or the cut portion on the coated surface of the three-dimensional object to be coated by the powder spray gun nozzle. As described in the section (1), the thickness of the coating layer is not uniform, and unnecessary powder is discharged and sprayed more than necessary. According to the apparatus of the present invention, as described in detail in the section of operation, the uneven portion on the surface of the article to be coated or /
In addition to the CPU (central processing unit) and the electropneumatic conversion type air pressure control device connected thereto, the powder of the proper amount corresponding to the shape of the coating surface of the object to be coated is automatically supplied to the removal section. The body can be spray-sprayed from a spray gun nozzle to apply the surface to be coated more economically and with a coating layer having a uniform thickness.
【図１】粉体塗布装置の構成側面図である。FIG. 1 is a configuration side view of a powder coating device.
【図２】被塗物のサンプルの１例図である。FIG. 2 is an example view of a sample of an article to be coated.
【図３】（Ａ）上記サンプルの上面図である。 （Ｂ）同サンプルのＣｈ．１上の塗布面積の投影図であ
る。 （Ｃ）同上サンプルの塗布面への粉体吐出量のグラフで
ある。FIG. 3A is a top view of the sample. (B) Ch. It is a projection view of the application area on 1. (C) It is a graph of the amount of powder discharged onto the coated surface of the sample.
【図４】（Ａ）上記サンプルのＣｈ．２上の塗布面積の
投影図である。 （Ｂ）同上サンプルの塗布面への粉体吐出量のグラフで
ある。FIG. 4 (A) Ch. It is a projection view of the application area on 2. (B) It is a graph of the amount of powder discharged onto the coating surface of the sample.
【図５】従来の粉体スプレイ塗布において、被塗物のフ
ラット面を基準に塗布した場合の凹凸面上における塗布
膜の不均一性の図示である。FIG. 5 is a diagram showing non-uniformity of a coating film on an uneven surface when a flat surface of an object to be coated is used as a reference in conventional powder spray coating.
【図６】（Ａ）従来の粉体スプレイ塗布において、被塗
物の傾斜の大なる部を基準として塗布した場合のＣｈ．
１における粉体吐出の余剰量を示すグラフである。 （Ｂ）上記の場合Ｃｈ．２におけるものである。FIG. 6 (A) is a graph showing the results of Ch.
3 is a graph showing a surplus amount of powder discharge in No. 1; (B) In the above case, Ch. It is in 2.
１，１Ａ 粉体スプレイガン ２，２Ａ 加圧エア配管 ３，３Ａ エアエジェクトポンプ ５，５Ａ 粉体供給管 ６，６Ａ 流動床式粉体供給タンク ９，９Ａ エア圧力検出器 １０，１０Ａ 電空変換式エア圧制御装置 １１ ソレノイドバルブ １５ 加圧エア源 ２０ ＣＰＵ ２１ コンベア ２５ 位置検出器 ２６ 移動距離検出器 ０ 被塗物 1,1A Powder spray gun 2,2A Pressurized air piping 3,3A Air eject pump 5,5A Powder supply pipe 6,6A Fluidized bed powder supply tank 9,9A Air pressure detector 10,10A Electro-pneumatic conversion Air pressure control device 11 Solenoid valve 15 Pressurized air source 20 CPU 21 Conveyor 25 Position detector 26 Moving distance detector 0 Object to be coated
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成６年２月１日[Submission date] February 1, 1994
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】図３[Name of item to be corrected] Figure 3
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【図３】 上記サンプルの塗布面Ｃｈ．１上の
塗布面投影面積と同面への粉体必要吐出量との対象図。FIG. 3 shows the coated surface Ch. 1 is a target diagram of the projected area of the coating surface on No. 1 and the required discharge amount of powder onto the same surface.
【手続補正２】[Procedure Amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】図４[Name of item to be corrected] Fig. 4
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【図４】 上記サンプルの塗布面Ｃｈ．２上の
塗布面投影面積と同面への粉体必要吐出量との対象図。FIG. 4 shows the coated surface Ch. 2 is a target diagram of the projected area of the coating surface on 2 and the required discharge amount of powder onto the same surface.
Claims (4)
立体的被塗物に対して向けられた粉体スプレイガン及び
ノズルにより粉体を塗布する装置において、加圧エア源
（１５）より粉体スプレイガン（１，１Ａ）に至る配管
（２，２Ａ）上に、ソレノイドバルブ（１１）、電空変
換式エア圧制御装置（１０，１０Ａ）及びエアエジェク
トポンプ（３，３Ａ）の順に配設され、かつ、上記ソレ
ノイドバルブ（１１）、電空変換式エア圧制御装置（１
０，１０Ａ）がＣＰＵ即ち中央処理装置（２０）に電気
接続され、また上記エアエジェクトポンプ（３，３Ａ）
への粉体供給管（５，５Ａ）は流動床式粉体供給タンク
（６又は６Ａ）内部に接続され、更にコンベア（２１）
及び被塗物（０）に対する位置検出器（２５）及び移動
距離検出器（２６）が上記ＣＰＵに電気接続されること
を特徴とする粉体塗布装置。1. An apparatus for applying powder by means of a powder spray gun and a nozzle directed to a three-dimensional object to be coated which moves at a constant speed by a conveyor, wherein the powder is supplied from a pressurized air source (15). A solenoid valve (11), an electropneumatic conversion type air pressure control device (10, 10A), and an air eject pump (3, 3A) are arranged in this order on a pipe (2, 2A) leading to a spray gun (1, 1A). In addition, the solenoid valve (11), the electropneumatic conversion type air pressure control device (1
0,10A) is electrically connected to the CPU or central processing unit (20), and the air eject pump (3,3A) is also connected.
The powder supply pipe (5, 5A) is connected to the inside of the fluidized bed type powder supply tank (6 or 6A), and further the conveyor (21)
And a position detector (25) and a movement distance detector (26) for the object (0) to be coated are electrically connected to the CPU.
される粉体がその輸送路上において摩擦式に、又はコロ
ナピンにより静電気の内部帯電されたものである請求項
１の粉体塗布装置。2. The powder coating apparatus according to claim 1, wherein the powder supplied into the powder spray gun (1, 1A) is electrostatically internally charged by a friction type or corona pin on its transportation path. .
される粉体が、そのガンのノズルの外部においてコロナ
ピンにより外部帯電されるものである請求項１の粉体塗
布装置。3. The powder coating apparatus according to claim 1, wherein the powder discharged from the powder spray gun (1, 1A) is externally charged by a corona pin outside the nozzle of the gun.
（８，８Ａ）系路上の電空変換式エア圧制御装置（１
０，１０Ａ）の次にエア圧検出器（９，９Ａ）の配設さ
れた請求項１の粉体塗布装置。4. An electropneumatic conversion type air pressure control device (1) on a pressurized air pipe (8, 8A) system path from a pressurized air source (15).
The powder coating apparatus according to claim 1, wherein an air pressure detector (9, 9A) is provided next to (0, 10A).
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10516893A JP3489035B2 (en) | 1993-04-07 | 1993-04-07 | Powder coating equipment |
| US08/530,142 US5741558A (en) | 1993-04-07 | 1994-04-07 | Method and apparatus for coating three dimensional articles |
| AU66282/94A AU6628294A (en) | 1993-04-07 | 1994-04-07 | Method and apparatus for coating three dimensional articles |
| CA002159216A CA2159216C (en) | 1993-04-07 | 1994-04-07 | Method and apparatus for coating three dimensional articles |
| EP94914073A EP0693973B1 (en) | 1993-04-07 | 1994-04-07 | Method and apparatus for coating three dimensional articles |
| DE69429163T DE69429163T2 (en) | 1993-04-07 | 1994-04-07 | METHOD AND DEVICE FOR COATING THREE-DIMENSIONAL ARTICLES |
| PCT/US1994/003828 WO1994022589A1 (en) | 1993-04-07 | 1994-04-07 | Method and apparatus for coating three dimensional articles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10516893A JP3489035B2 (en) | 1993-04-07 | 1993-04-07 | Powder coating equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07880A true JPH07880A (en) | 1995-01-06 |
| JP3489035B2 JP3489035B2 (en) | 2004-01-19 |
Family
ID=14400159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10516893A Expired - Fee Related JP3489035B2 (en) | 1993-04-07 | 1993-04-07 | Powder coating equipment |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0693973B1 (en) |
| JP (1) | JP3489035B2 (en) |
| AU (1) | AU6628294A (en) |
| CA (1) | CA2159216C (en) |
| DE (1) | DE69429163T2 (en) |
| WO (1) | WO1994022589A1 (en) |
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| JP2014088933A (en) * | 2012-10-31 | 2014-05-15 | Shimizu Gokin Seisakusho:Kk | Fastening ring for connecting valve and pipe joint, powder coating method therefor, and valve and pipe joint |
| JP2015160162A (en) * | 2014-02-26 | 2015-09-07 | 株式会社エルエーシー | curved surface printing system |
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| DE19738144C2 (en) * | 1997-09-01 | 1999-12-09 | Wagner International Ag Altsta | Method for controlling an electrostatic coating device and electrostatic coating system |
| DE19748375A1 (en) | 1997-11-03 | 1999-05-06 | Itw Gema Ag | Method and device for powder spray coating |
| DE19748376A1 (en) * | 1997-11-03 | 1999-05-06 | Itw Gema Ag | Method and device for powder spray coating |
| DE10115463A1 (en) | 2001-03-29 | 2002-10-02 | Duerr Systems Gmbh | Atomizer for a coating system and process for its material supply |
| DE10115470A1 (en) | 2001-03-29 | 2002-10-10 | Duerr Systems Gmbh | Coating system with an atomizer change station |
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| DE10115467A1 (en) | 2001-03-29 | 2002-10-02 | Duerr Systems Gmbh | Tool changing system for one machine |
| DE10202711A1 (en) | 2002-01-24 | 2003-07-31 | Duerr Systems Gmbh | Sprayer unit for electrostatic serial coating of workpieces comprises an electrode array integrated into the ring section of insulating material on the outer housing of the unit |
| DE10231421A1 (en) | 2002-07-11 | 2004-01-22 | Dürr Systems GmbH | Method and system for supplying a powder coating device |
| DE10233198A1 (en) | 2002-07-22 | 2004-02-05 | Dürr Systems GmbH | rotary atomizers |
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| DE10240451A1 (en) | 2002-09-02 | 2004-03-11 | Dürr Systems GmbH | Sensor arrangement for a coating system |
| DE10245594A1 (en) | 2002-09-30 | 2004-04-08 | Dürr Systems GmbH | Collision detection method |
| US6991178B2 (en) | 2003-01-24 | 2006-01-31 | Dürr Systems, Inc. | Concentric paint atomizer shaping air rings |
| DE102004019946A1 (en) | 2004-04-23 | 2005-11-17 | Dürr Systems GmbH | Fluidizing body for a powder coating system |
| US8671495B2 (en) | 2006-11-06 | 2014-03-18 | Durr Systems, Inc. | Scraper pig |
| DE102007061498B3 (en) * | 2007-12-18 | 2009-02-19 | Wd Beteiligungs Gmbh | Method for powder coating of wood substrates, involves continuously transporting and placing wood substrates, where wood substrate is sprayed successively on two sides with lacquer powder |
| CN101690923B (en) * | 2009-10-10 | 2013-05-01 | 华南农业大学 | Microcomputer based control device for constant-pressure atomization of pipeline |
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| DE102017130289A1 (en) * | 2017-12-18 | 2019-06-19 | quickcoating GmbH | Device for powder coating of objects |
| EP4141390B1 (en) * | 2021-08-31 | 2024-03-20 | Wagner International AG | Measuring device for measuring a coating powder mass flow, which can be generated with compressed gas, in a powder line and conveying device for coating powder |
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| US3054697A (en) * | 1960-02-29 | 1962-09-18 | Ford Motor Co | Electrostatic painting |
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| US3594211A (en) * | 1966-10-20 | 1971-07-20 | Ransburg Electro Coating Corp | Automatic coating system |
| US3691991A (en) * | 1968-04-26 | 1972-09-19 | Atlas Copco Ab | Apparatus for spray-coating components |
| US3556255A (en) * | 1968-06-17 | 1971-01-19 | Sperry Rand Corp | Electrostatic application of solid lubricants |
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| SU1087191A2 (en) * | 1983-03-09 | 1984-04-23 | Проектный Институт Научно-Производственного Объединения "Лакокраспокрытие" | Apparatus for automatic painting of articles |
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| SU1358998A1 (en) * | 1986-03-11 | 1987-12-15 | Проектный Институт Научно-Производственного Объединения "Лакокраспокрытие" | Installation for automatic application of coatings |
| US5217745A (en) * | 1989-06-28 | 1993-06-08 | Baldev Patel | Method and apparatus for applying a programmable pattern to a succession of moving objects |
| DE3926624A1 (en) * | 1989-08-11 | 1991-02-14 | Gema Ransburg Ag | ELECTROSTATIC POWDER COATING DEVICE |
| US5056462A (en) * | 1989-11-27 | 1991-10-15 | Nordson Corporation | Coating system with correction for non-linear dispensing characteristics |
| US5202214A (en) * | 1989-12-19 | 1993-04-13 | Canon Kabushiki Kaisha | Process of producing-electrophotographic photosensitive member |
-
1993
- 1993-04-07 JP JP10516893A patent/JP3489035B2/en not_active Expired - Fee Related
-
1994
- 1994-04-07 AU AU66282/94A patent/AU6628294A/en not_active Abandoned
- 1994-04-07 CA CA002159216A patent/CA2159216C/en not_active Expired - Fee Related
- 1994-04-07 EP EP94914073A patent/EP0693973B1/en not_active Expired - Lifetime
- 1994-04-07 DE DE69429163T patent/DE69429163T2/en not_active Expired - Fee Related
- 1994-04-07 WO PCT/US1994/003828 patent/WO1994022589A1/en active IP Right Grant
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014088933A (en) * | 2012-10-31 | 2014-05-15 | Shimizu Gokin Seisakusho:Kk | Fastening ring for connecting valve and pipe joint, powder coating method therefor, and valve and pipe joint |
| JP2015160162A (en) * | 2014-02-26 | 2015-09-07 | 株式会社エルエーシー | curved surface printing system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1994022589A1 (en) | 1994-10-13 |
| CA2159216A1 (en) | 1994-10-13 |
| DE69429163T2 (en) | 2002-07-18 |
| EP0693973B1 (en) | 2001-11-21 |
| DE69429163D1 (en) | 2002-01-03 |
| EP0693973A4 (en) | 1996-11-13 |
| JP3489035B2 (en) | 2004-01-19 |
| CA2159216C (en) | 2005-09-13 |
| EP0693973A1 (en) | 1996-01-31 |
| AU6628294A (en) | 1994-10-24 |
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