JP2008296167A - Cup gun for powder coating - Google Patents

Cup gun for powder coating Download PDF

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Publication number
JP2008296167A
JP2008296167A JP2007146954A JP2007146954A JP2008296167A JP 2008296167 A JP2008296167 A JP 2008296167A JP 2007146954 A JP2007146954 A JP 2007146954A JP 2007146954 A JP2007146954 A JP 2007146954A JP 2008296167 A JP2008296167 A JP 2008296167A
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gun
cup
paint
powder coating
powder
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JP2007146954A
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JP5148174B2 (en
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Haruhisa Umizumi
晴久 海住
Nobufumi Sakurai
宣文 櫻井
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Asahi Sunac Corp
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Asahi Sunac Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a cup gun for powder coating capable of keeping the fluidity of a powder paint A even holding a gun 11 obliquely, causing no interruption of feeding of the powder paint A from the gun 11, and being stable in ejection amount. <P>SOLUTION: In the cup gun 11, a porous plate 15 on the bottom surface of the paint cup 12 is made to be covered by the powder paint and a fluidizing air is made to stably flow in from the whole surface of the porous plate 15, by making the gun 11 able to be kept in the horizontal state due to bending of a bending part 17 even if the gun is inclined, by providing the freely bendable bending part 17 between the lower part of the gun 11 and a suction pipe 13 above a paint cup 12. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

この発明は、ガンの下部に塗料カップを吊り下げ、この吊り下げた塗料カップ内に吸引管を挿し入れ、ガンから吐出するエアーの吸引力により吸引管から塗料カップ内の粉体塗料を吸引して、ガン先から吐出エアーと共に粉体塗料を吐出する、手持ち式の塗料カップ付き粉体塗装ガンに関するものである。   In this invention, a paint cup is suspended under the gun, a suction pipe is inserted into the suspended paint cup, and the powder paint in the paint cup is sucked from the suction pipe by the suction force of air discharged from the gun. The present invention relates to a powder coating gun with a hand-held paint cup that discharges powder paint from the gun tip together with discharge air.

粉体塗装は、有機溶剤を含まず環境にやさしい塗装として水性塗装と同様に期待されている。   Powder coating is expected as an environmentally friendly coating that does not contain organic solvents, as well as aqueous coating.

ところで、小ロットの粉体塗装を行う場合や、粉体塗装のテストピースを作成する場合に、塗料タンクから粉体ホースを介して粉体塗料をガンに供給する通常の粉体塗装装置を用いると、小ロットの色替え毎に、塗料タンクの清掃、粉体ホースの清掃又は交換、ガンの清掃といった色替の手順を頻繁に行なう必要がある。   By the way, when performing small lot powder coating or creating a powder coating test piece, a normal powder coating apparatus that supplies powder coating from a coating tank to a gun via a powder hose is used. In each small lot color change, it is necessary to frequently perform color change procedures such as cleaning the paint tank, cleaning or replacing the powder hose, and cleaning the gun.

このため、小ロットの粉体塗装を行う場合や、粉体塗装のテストピースを作成する場合には、ガンの下部に塗料カップを直接吊り下げた手持ち式の塗料カップ付き粉体塗装ガンが使用されることが多い。この塗料カップ付きの粉体塗装ガン、即ち、粉体塗装用カップガンは、粉体ホースがなく、色替えが簡単であるから、小ロットの粉体塗装を行う場合や、粉体塗装のテストピースを作成する場合に使用すると好都合である。   For this reason, a powder coating gun with a hand-held paint cup with a paint cup suspended directly at the bottom of the gun is used for small lot powder coating or when creating a powder coating test piece. Often done. This powder coating gun with a paint cup, that is, a powder coating cup gun, does not have a powder hose and is easy to change colors. Conveniently used when creating pieces.

従来の粉体塗装用カップガンは、図４に示すように、ガン１の下部に塗料カップ２を吊り下げ、この塗料カップ２内に吸引管３を挿し入れ、ガン１にインジェクター４によって吐出エアー６を供給し、ガン１から吐出するエアーの吸引力により吸引管３から塗料カップ２内の粉体塗料Ａを吸引して、ガン先から吐出エアー６と共に粉体塗料を吐出する構造になっている。   As shown in FIG. 4, a conventional powder coating cup gun hangs a paint cup 2 below the gun 1, inserts a suction pipe 3 into the paint cup 2, and discharges air into the gun 1 by an injector 4. 6, the powder paint A in the paint cup 2 is sucked from the suction pipe 3 by the suction force of the air discharged from the gun 1, and the powder paint is discharged together with the discharge air 6 from the gun tip. Yes.

上記塗料カップ２の底面は、塗料カップ２内の粉体塗料を流動させる流動エアーを取り入れるために、多孔質板５によって形成されている。上記塗料カップ２の多孔質板５は、円筒形をした塗料カップ２の胴部下面の平坦面の全面に設置されている。   The bottom surface of the paint cup 2 is formed by a porous plate 5 in order to take in fluid air that causes the powder paint in the paint cup 2 to flow. The porous plate 5 of the paint cup 2 is installed on the entire flat surface of the lower surface of the body portion of the cylindrical paint cup 2.

ところで、手持ち式の粉体塗装用カップガンは、被塗装物の裏面を塗装するような場合に、図５に示すように、ガンを斜めにして塗装作業を行うことがある。   By the way, when a hand-held type powder coating cup gun is used to coat the back surface of an object to be coated, as shown in FIG.

ところが、ガンを斜めにすると、塗料カップ２内の粉体塗料Ａはあたかも水のような状態で流動しているため、塗料カップ２の底面の多孔質板５の上面を滑り、ガンの傾斜が大きくなると、図５に示すように、多孔質板５の端の部分に粉体塗料Ａがなく、多孔質板５が露出する部分が生じる。   However, when the gun is inclined, the powder paint A in the paint cup 2 flows as if it were in a water-like state, so that the upper surface of the porous plate 5 on the bottom surface of the paint cup 2 slides and the gun is inclined. When it becomes larger, as shown in FIG. 5, there is a portion where the porous plate 5 is exposed without the powder coating material A at the end portion of the porous plate 5.

このように多孔質板５の一部に、粉体塗料Ａが載っていない露出部分が形成されると、この部分からエアーが抵抗なく流入し、粉体塗料Ａが載った部分からはエアーが流入し難くなるため、粉体塗料Ａが流動しなくなり、ガン１からの粉体塗料Ａの吐出が息継ぎ現象を起こしたり、吐出量が不安定になり、塗装にスケが生じたりするという問題があった。   When an exposed portion where the powder coating material A is not placed is formed on a part of the porous plate 5 as described above, air flows in without resistance from this portion, and air flows from the portion where the powder coating material A is placed. Since it becomes difficult to flow in, the powder coating material A does not flow, and the discharge of the powder coating material A from the gun 1 causes a breathing phenomenon, the discharge amount becomes unstable, and the coating is squeezed. there were.

そこで、この発明は、ガンを斜めにしても、粉体塗料の流動性が保て、ガンからの粉体塗料の息継ぎ現象を起こさず、吐出量の安定した粉体塗装用カップガンを提供しようとするものである。   Accordingly, the present invention is to provide a powder coating cup gun that maintains the fluidity of the powder coating material even when the gun is inclined, does not cause the breathing phenomenon of the powder coating material from the gun, and has a stable discharge rate. It is what.

上記の課題を解決するために、この発明は、ガンの下部に塗料カップを吊り下げ、この吊り下げた塗料カップ内に吸引管を挿し入れ、ガンから吐出するエアーの吸引力により吸引管から塗料カップ内の粉体塗料を吸引して、ガン先から吐出エアーと共に粉体塗料を吐出する粉体塗装用カップガンにおいて、上記ガンの下部と塗料カップの上方の吸引管との間に、屈曲自在な屈曲部を設けたのである。   In order to solve the above-mentioned problems, the present invention suspends a paint cup at the lower part of a gun, inserts a suction pipe into the suspended paint cup, and draws the paint from the suction pipe by the suction force of air discharged from the gun. In a powder coating cup gun that sucks the powder paint in the cup and discharges the powder paint together with the discharge air from the gun tip, it can be bent between the lower part of the gun and the suction pipe above the paint cup A simple bent portion is provided.

上記のように、上記ガンの下部と塗料カップの上方の吸引管との間に、屈曲自在な屈曲部を設けると、ガンを傾けても、屈曲部が屈曲して塗料カップを水平状態に保つことができる。したがって、ガンを傾けても、塗料カップの底面の多孔質板が粉体塗料によって覆われた状態が維持されるので、多孔質板の端の部分が露出せず、多孔質板全体からエアーが流入し、塗料カップ内の粉体塗料全体が安定した流動状態を保つ。   As described above, if a bendable bend is provided between the lower part of the gun and the suction pipe above the paint cup, the bend will bend and keep the paint cup horizontal even when the gun is tilted. be able to. Therefore, even when the gun is tilted, the porous plate on the bottom surface of the paint cup is kept covered with the powder paint, so that the end portion of the porous plate is not exposed and air is discharged from the entire porous plate. It flows in and the whole powder paint in the paint cup keeps a stable fluid state.

上記屈曲部としては、フレキシブルチューブあるいはロータリージョイントによって形成することができる。   The bent portion can be formed by a flexible tube or a rotary joint.

上記屈曲部をフレキシブルチューブによって形成した場合、フレキシブルチューブが屈曲しすぎて折れると、粉体塗料の通路を遮断するおそれがあるため、フレキシブルチューブの折れを防止するために、フレキシブルチューブの周囲に、コイルスプリングからなるチューブサポートを被せることが好ましい。   When the bent portion is formed of a flexible tube, if the flexible tube is bent too much and bent, there is a risk of blocking the passage of the powder coating material.To prevent the flexible tube from being bent, around the flexible tube, It is preferable to cover a tube support made of a coil spring.

この発明によれば、以上のように、ガンを傾けても、塗料カップを水平状態に保つことができるので、塗料カップの底面の多孔質板全体から流動エアーが安定的に流入するため、ガンからの粉体塗料の息継ぎ現象を起こさず、安定した吐出量が得られる。   According to the present invention, since the paint cup can be kept in a horizontal state even when the gun is tilted as described above, the flowing air stably flows from the entire porous plate on the bottom surface of the paint cup. Therefore, a stable discharge amount can be obtained without causing a breathing phenomenon of the powder coating material.

図１は、この発明に係る粉体塗装用カップガンの第１の実施形態を示している。
この発明に係る粉体塗装用カップガンは、図１に示すように、ガン１１の下部に塗料カップ１２を吊り下げ、この吊り下げた塗料カップ１２内に吸引管１３を挿し入れ、ガン１１にインジェクター１４によって吐出エアー１６を供給し、ガン１１から吐出するエアーの吸引力により吸引管１３から塗料カップ１２内の粉体塗料Ａを吸引して、ガン先から吐出エアーと共に粉体塗料を吐出する構造になっている。 FIG. 1 shows a first embodiment of a powder coating cup gun according to the present invention.
As shown in FIG. 1, the powder coating cup gun according to the present invention suspends a paint cup 12 below the gun 11, inserts a suction pipe 13 into the suspended paint cup 12, The discharge air 16 is supplied by the injector 14, the powder paint A in the paint cup 12 is sucked from the suction pipe 13 by the suction force of the air discharged from the gun 11, and the powder paint is discharged together with the discharge air from the gun tip. It has a structure.

上記塗料カップ１２の底面は、塗料カップ１２内の粉体塗料を流動させる流動エアーを取り入れるために、多孔質板１５によって形成されている。上記塗料カップ１２の多孔質板１５は、円筒形を塗料カップ１２の胴部下面の全面に設置されている。   The bottom surface of the paint cup 12 is formed by a porous plate 15 in order to take in fluid air that causes the powder paint in the paint cup 12 to flow. The porous plate 15 of the paint cup 12 is installed in a cylindrical shape on the entire lower surface of the body portion of the paint cup 12.

上記ガン１１の下部と、吸引管１３の上方に接続したインジェクター１４との間には、ゴム製のフレキスブルチューブからなる屈曲自在な屈曲部１７を設けており、図１に鎖線で示すように、ガン１１を傾けた際に、屈曲部１７が屈曲して塗料カップ１２が水平状態に保たれるようになっている。上記フレキスブルチューブの具体例としては、１２×２２φのゴムチューブを使用することができる。   Between the lower part of the gun 11 and the injector 14 connected above the suction pipe 13, a bendable bending portion 17 made of a rubber flexible tube is provided. As shown by a chain line in FIG. When the gun 11 is tilted, the bent portion 17 is bent and the paint cup 12 is kept in a horizontal state. As a specific example of the flexible tube, a 12 × 22φ rubber tube can be used.

ガン１１から吐出するエアーの吸引力により吸引管１３から塗料カップ１２内の粉体塗料Ａが吸引されると、この吸引量に応じて塗料カップ１２の底面の多孔質板１５からエアーが塗料カップ１２内に流入し、この流入エアーにより塗料カップ１２の下部の粉体塗料Ａが流動する。   When the powder paint A in the paint cup 12 is sucked from the suction pipe 13 by the suction force of the air discharged from the gun 11, the air is sent from the porous plate 15 on the bottom surface of the paint cup 12 according to the suction amount. The powder paint A below the paint cup 12 flows by this inflow air.

次に、吸引管１３からの粉体塗料Ａの吸引作用は、粉体塗料の吐出量及び搬送エアーによって、即ち、ガン１１のグリップの下方に設けられたベンチュリー効果によるインジェクター１４により得られる。   Next, the suction action of the powder paint A from the suction pipe 13 is obtained by the injector 14 based on the venturi effect provided below the grip of the gun 11 by the discharge amount of the powder paint and the carrier air.

次に、図２は、上記屈曲部をフレキシブルチューブによって形成した場合、フレキシブルチューブが屈曲しすぎて折れると、通路を遮断するおそれがあるため、フレキシブルチューブの折れを防止するために、フレキシブルチューブの周囲に、コイルスプリングからなるチューブサポート１８を被せた実施形態を示している。このチューブサポート１８の材質としては、カーボン製、樹脂製、金属製のものを使用することができる。このチューブサポート１８を使用する場合、フレキシブルチューブとしては、比較的腰の弱い、折れ曲がり易いものも使用することができる。   Next, FIG. 2 shows that when the bent portion is formed of a flexible tube, the passage may be blocked if the flexible tube is bent too much. In order to prevent the flexible tube from being bent, An embodiment is shown in which a tube support 18 made of a coil spring is put on the periphery. As the material of the tube support 18, carbon, resin, or metal can be used. When this tube support 18 is used, a flexible tube that is relatively weak and easy to bend can be used.

また、図３は、屈曲部１７としてロータリージョイントを使用した例であり、このロータリージョイントは、ガンを傾けた際に、塗料カップ１２の自重により、屈曲する程度の固さのものを使用してもよいが、ガンを傾けた際に、手で屈曲させる固さのものでもよい。   FIG. 3 shows an example in which a rotary joint is used as the bent portion 17. The rotary joint is made of a material that can be bent by the weight of the paint cup 12 when the gun is tilted. However, it may be hard to bend by hand when the gun is tilted.

この発明に係る粉体塗装用カップガンの一実施形態を示す一部切り欠き側面図である。It is a partially cutaway side view showing an embodiment of a powder coating cup gun according to the present invention. この発明に係る粉体塗装用カップガンの他の実施形態を示す一部切り欠き側面図である。It is a partially cutaway side view showing another embodiment of a powder coating cup gun according to the present invention. この発明に係る粉体塗装用カップガンの他の実施形態を示す一部切り欠き側面図である。It is a partially cutaway side view showing another embodiment of a powder coating cup gun according to the present invention. 従来の粉体塗装用カップガンを示す一部切り欠き側面図である。It is a partially cutaway side view showing a conventional powder coating cup gun. 図４の粉体塗装用カップガンを斜めにした状態を示す一部切り欠き側面図である。FIG. 5 is a partially cutaway side view showing a state in which the powder coating cup gun of FIG. 4 is inclined.

符号の説明Explanation of symbols

１１ ガン
１２ 塗料カップガン
１３ 吸引管
１４ インジェクター
１５ 多孔質板
１６ 吐出エアー
１７ 屈曲部
１８ チューブサポート 11 Gun 12 Paint cup gun 13 Suction tube 14 Injector 15 Porous plate 16 Discharged air 17 Bent part 18 Tube support

Claims (4)

ガンの下部に塗料カップを吊り下げ、この吊り下げた塗料カップ内に吸引管を挿し入れ、ガンから吐出するエアーの吸引力により吸引管から塗料カップ内の粉体塗料を吸引して、ガン先から吐出エアーと共に粉体塗料を吐出する粉体塗装用カップガンにおいて、上記ガンの下部と塗料カップの上方の吸引管との間に、屈曲自在な屈曲部を設けたことを特徴とする粉体塗装用カップガン。   A paint cup is suspended at the bottom of the gun, a suction pipe is inserted into the suspended paint cup, and the powder paint in the paint cup is sucked from the suction pipe by the suction force of air discharged from the gun, A powder coating cup gun for discharging powder paint together with discharge air from a powder, characterized in that a flexible bending portion is provided between the lower part of the gun and the suction pipe above the paint cup Paint cup gun. 上記屈曲部をフレキシブルチューブによって形成した請求項１記載の粉体塗装用カップガン。   The powder coating cup gun according to claim 1, wherein the bent portion is formed of a flexible tube. 上記フレキシブルチューブの周囲に、コイルスプリングからなるチューブサポートを被せた請求項２記載の粉体塗装用カップガン。   The cup gun for powder coating according to claim 2, wherein a tube support made of a coil spring is covered around the flexible tube. 上記屈曲部を、ロータリージョイントによって形成した請求項１記載の粉体塗装用カップガン。   The powder coating cup gun according to claim 1, wherein the bent portion is formed by a rotary joint.
JP2007146954A 2007-06-01 2007-06-01 Powder coating cup gun Expired - Fee Related JP5148174B2 (en)

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JP2007146954A JP5148174B2 (en) 2007-06-01 2007-06-01 Powder coating cup gun

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JP2007146954A JP5148174B2 (en) 2007-06-01 2007-06-01 Powder coating cup gun

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JP2008296167A true JP2008296167A (en) 2008-12-11
JP5148174B2 JP5148174B2 (en) 2013-02-20

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020124381A1 (en) 2020-09-18 2022-03-24 Sata Gmbh & Co. Kg Hand-held material spray device with a paint spray gun for atomizing and applying a liquid material

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5132654U (en) * 1972-10-02 1976-03-10
JPS60134987U (en) * 1984-02-20 1985-09-07 日産自動車株式会社 hose
JP3077310U (en) * 2000-06-01 2001-05-18 武巧 周 Spray tool gun equipment
JP2007130521A (en) * 2005-11-08 2007-05-31 Before After:Kk Spray device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5132654U (en) * 1972-10-02 1976-03-10
JPS60134987U (en) * 1984-02-20 1985-09-07 日産自動車株式会社 hose
JP3077310U (en) * 2000-06-01 2001-05-18 武巧 周 Spray tool gun equipment
JP2007130521A (en) * 2005-11-08 2007-05-31 Before After:Kk Spray device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020124381A1 (en) 2020-09-18 2022-03-24 Sata Gmbh & Co. Kg Hand-held material spray device with a paint spray gun for atomizing and applying a liquid material

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