JP2008023480A - Paint supplying apparatus - Google Patents

Paint supplying apparatus Download PDF

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JP2008023480A
JP2008023480A JP2006200655A JP2006200655A JP2008023480A JP 2008023480 A JP2008023480 A JP 2008023480A JP 2006200655 A JP2006200655 A JP 2006200655A JP 2006200655 A JP2006200655 A JP 2006200655A JP 2008023480 A JP2008023480 A JP 2008023480A
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flow path
individual
cleaning liquid
paint
valve
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Nobuyuki Hayashi
信之 林
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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 paint supplying apparatus which enables a sure wash of the inside of a color change valve. <P>SOLUTION: The color change valve 10 is structured so that an open/close valve 22 is made to communicate with a plurality of separate passages 34 diverged from a common passage 12 and a cleaning-liquid supplying source 35A and paint supplying sources 35B-35F are connected to the open/close valve 22, wherein the color change valve 10 has an induction member 40 consisting of a turning part 42 which is arranged in the common passage 12 and an advancing part 43 which is projected from the turning part 42 and arranged in the separate passage 34. As the direction of a stream of the cleaning liquid flowing in the common passage 12 is changed to the side of the separate passage 34 by hitting the turning part 42 and guided into the separate passage 34 along the outer face of the advancing part 43, the cleaning liquid surely flows into the separate passage 34 to clean the inside of the separate passage 34. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、色替えバルブを備えた塗料供給装置に関するものである。   The present invention relates to a paint supply apparatus provided with a color change valve.

塗料供給装置に用いられる色替えバルブとして、特許文献１に記載されているものがある。これは、共通流路と、共通流路から分岐した複数の個別流路と、各個別流路に連通する開閉弁とを備えている。共通流路の最も上流側から分岐した個別流路に連なる開閉弁には、洗浄液供給源が接続され、それ以外の開閉弁には塗料供給源が接続されている。また、共通流路の下流端には、塗装ガンに至る供給路が接続されている。   As a color change valve used in a paint supply device, there is one described in Patent Document 1. This includes a common channel, a plurality of individual channels branched from the common channel, and an on-off valve communicating with each individual channel. A cleaning liquid supply source is connected to the open / close valve connected to the individual flow path branched from the most upstream side of the common flow path, and a paint supply source is connected to the other open / close valves. In addition, a supply path to the coating gun is connected to the downstream end of the common flow path.

色替えの際には、全ての塗料用の開閉弁を閉弁した状態で洗浄液用の開閉弁を開弁し、洗浄液によって共通流路と供給路と塗装ガンを洗浄する。洗浄後は、洗浄液用の開閉弁を閉弁し、別の色の塗料を供給する。
特開平７−１６５１１号公報 When changing colors, all the on-off valves for paint are closed, and the on-off valves for the cleaning liquid are opened, and the common flow path, the supply path, and the coating gun are washed with the cleaning liquid. After washing, the on / off valve for the washing liquid is closed and another color paint is supplied.
JP-A-7-16511

洗浄の際には、塗料用の開閉弁は弁口を閉じた閉弁状態となっているため、共通流路から分岐している各個別流路の上流端は袋小路状となる。このような袋小路状の個別流路には洗浄液が進入し難いことから、個別流路内で塗料が残留する虞があり、十分な洗浄効果を期待できないという問題がある。
本発明は上記のような事情に基づいて完成されたものであって、色替えバルブ内を確実に洗浄できるようにすることを目的とする。 At the time of cleaning, since the on-off valve for the paint is in a closed state with the valve port closed, the upstream end of each individual flow path branched from the common flow path is in the form of a bag path. Since it is difficult for the cleaning liquid to enter such an individual flow path having a bag path, the paint may remain in the individual flow path, and there is a problem that a sufficient cleaning effect cannot be expected.
The present invention has been completed based on the above circumstances, and an object thereof is to ensure that the inside of the color change valve can be cleaned.

上記の目的を達成するための手段として、請求項１の発明は、色替えバルブを介して塗装ガンに塗料を供給するためのものであって、前記色替えバルブが、共通流路から複数の個別流路を分岐させるとともに、前記複数の個別流路に夫々開閉弁を連通させ、いずれか１つの前記開閉弁には洗浄液供給源を接続し、残りの複数の前記開閉弁には夫々複数種類の塗料供給源を接続し、前記共通流路の下流端に前記塗装ガンを接続した形態となっている塗装装置において、前記共通流路内に配置された転向部と、前記転向部から突出して前記個別流路内に配置された進入部とを備えた誘導部材が設けられているところに特徴を有する。   As a means for achieving the above object, the invention of claim 1 is for supplying paint to a coating gun via a color change valve, wherein the color change valve is connected to a plurality of common flow paths. The individual flow paths are branched, and the on / off valves are respectively connected to the plurality of individual flow paths. A cleaning liquid supply source is connected to any one of the on / off valves, and a plurality of types are provided to the remaining plurality of on / off valves. In the coating apparatus in which the paint supply source is connected, and the coating gun is connected to the downstream end of the common flow path, a turning portion disposed in the common flow path, and a protrusion projecting from the turning portion. It is characterized in that a guide member having an entry portion arranged in the individual flow path is provided.

請求項２の発明は、請求項１に記載のものにおいて、前記進入部の前記個別流路への進入深さが、前記個別流路の奥行き深さの１／２かそれよりも大きい寸法とされているところに特徴を有する。   According to a second aspect of the present invention, in the one according to the first aspect, the depth of entry of the entry portion into the individual flow path is a dimension that is 1/2 or greater than the depth depth of the individual flow path. It has the characteristics where it is done.

請求項３の発明は、請求項１または請求項２に記載のものにおいて、前記個別流路の断面形状が円形をなし、前記進入部が、前記個別流路と同心の円柱形をなし、前記進入部の外径が、前記個別流路の内径の１／２かそれよりも小さい寸法とされているところに特徴を有する。   According to a third aspect of the present invention, in the first or second aspect of the present invention, the individual channel has a circular cross-sectional shape, the entry portion has a cylindrical shape concentric with the individual channel, and It is characterized in that the outer diameter of the entry portion is ½ or smaller than the inner diameter of the individual flow path.

請求項４の発明は、請求項１ないし請求項３のいずれかに記載のものにおいて、前記転向部が、前記共通流路内を流れる洗浄液を前記個別流路側に誘い込むように傾斜した転向面を備えているところに特徴を有する。   According to a fourth aspect of the invention, there is provided the invention according to any one of the first to third aspects, wherein the turning portion has a turning surface inclined so as to draw the cleaning liquid flowing in the common flow channel toward the individual flow channel. It has features where it is provided.

請求項５の発明は、請求項１ないし請求項４のいずれかに記載のものにおいて、前記複数の開閉弁のうち前記共通流路の最も上流側の位置から分岐した前記個別流路に連なる開閉弁に、前記洗浄液供給源が接続されているところに特徴を有する。   According to a fifth aspect of the present invention, in any one of the first to fourth aspects, the open / close connected to the individual flow path branched from the most upstream position of the common flow path among the plurality of open / close valves. A characteristic is that the cleaning liquid supply source is connected to the valve.

＜請求項１の発明＞
共通流路内を流れる洗浄液は、転向部に当たることによって流れの向きを個別流路側へ変えられ、さらに転向部に連なる進入部の外面に沿って個別流路内に誘導される。これにより、共通流路内の洗浄液は、確実に個別流路内に流入することができるので、個別流路内を確実に洗浄することができる。 <Invention of Claim 1>
The cleaning liquid flowing in the common channel is changed to the individual channel side by hitting the turning part, and is further guided into the individual channel along the outer surface of the entry part connected to the turning part. As a result, the cleaning liquid in the common flow channel can surely flow into the individual flow channel, so that the individual flow channel can be reliably washed.

＜請求項２の発明＞
進入部の個別流路への進入深さを、個別流路の奥行き深さの１／２かそれよりも大きい寸法としているので、進入部による洗浄液の誘導経路が長くなり、洗浄液を確実に個別流路内に流入させることができる。 <Invention of Claim 2>
Since the depth of entry into the individual flow path of the entry portion is set to be 1/2 or more than the depth depth of the individual flow path, the cleaning liquid guiding path by the entry portion becomes longer, and the washing liquid is surely separated. It can flow into the flow path.

＜請求項３の発明＞
進入部の外径を、個別流路の内径の１／２かそれよりも小さい寸法としているので、個別流路内における洗浄液の流入可能な容積が十分に確保される。これにより、洗浄液は確実に個別流路内に流入することができる。 <Invention of Claim 3>
Since the outer diameter of the entry portion is ½ or smaller than the inner diameter of the individual flow path, a sufficient volume for allowing the cleaning liquid to flow into the individual flow path is secured. Thereby, the cleaning liquid can surely flow into the individual flow path.

＜請求項４の発明＞
共通流路を流れる洗浄液は、転向面によって確実に個別流路に流入することができる。 <Invention of Claim 4>
The cleaning liquid flowing through the common flow channel can surely flow into the individual flow channel by the turning surface.

＜請求項５の発明＞
共通流路の最も上流側の位置から分岐した個別流路に連なる開閉弁に、洗浄液供給源を接続したので、洗浄液は、全ての塗料用の個別流路に確実に流入することができる。 <Invention of Claim 5>
Since the cleaning liquid supply source is connected to the on-off valve connected to the individual flow path branched from the most upstream position of the common flow path, the cleaning liquid can surely flow into the individual flow paths for all the paints.

＜実施形態１＞
以下、本発明を具体化した実施形態１を図１乃至図４を参照して説明する。本実施形態の塗料供給装置は、塗装の際には色替えバルブ１０を介して複数種類の塗料を選択的に供給するとともに、色替えの際には洗浄液を色替えバルブ１０を介して塗装ガン１６に供給するようにしたものである。
色替えバルブ１０は、１本のマニホールド１１に、６つのバルブ機構２０Ａ〜２０Ｆを取り付けたものである。マニホールド１１内には、断面形状が円形をなす１本の直線状の共通流路１２が、その下流端をマニホールド１１の端部に接続口２０として開口させて形成されている。接続口２０には継手１４の上流端が接続され、継手１４の下流端には供給路１５の上流端が接続され、供給路１５の下流端に塗装ガン１６が接続されている。 <Embodiment 1>
A first embodiment of the present invention will be described below with reference to FIGS. The paint supply apparatus according to the present embodiment selectively supplies a plurality of types of paint via the color change valve 10 during painting, and supplies a cleaning liquid via the color change valve 10 during color change. 16 is provided.
The color change valve 10 is obtained by attaching six valve mechanisms 20 </ b> A to 20 </ b> F to one manifold 11. In the manifold 11, a single linear common channel 12 having a circular cross-sectional shape is formed with the downstream end thereof opened as a connection port 20 at the end of the manifold 11. The upstream end of the joint 14 is connected to the connection port 20, the upstream end of the supply path 15 is connected to the downstream end of the joint 14, and the coating gun 16 is connected to the downstream end of the supply path 15.

６つのバルブ機構２０Ａ〜２０Ｆは、全て同じ構造であり、複数の部品を組み付けて構成されるケーシング２１内には、マニホールド１１の近くに位置する開閉弁２２が設けられている。開閉弁２２は、一次室２３と二次室２４とを筒状の弁シート２５を介して連通させ、弁シート２５に対して一次室２３側から弁体２６を当接・離間させるようになっている。一次室２３には、塗料供給源３５Ｂ〜３５Ｆ又は洗浄液供給源３５Ａに接続される流入孔２７が連通している。弁体２６にはロッド２８の一端が固着され、ロッド２８の他端にはピストン２９が固着され、ピストン２９は圧縮コイルバネ３０のバネ力が常時付与されている。弁体２６は、圧縮コイルバネ３０により、弁シート２５に当接して弁口３１を閉じる閉弁方向に付勢されているが、加圧室３２に作動エアを供給すると、弁体２６が弁シート２５から離間して弁口３１を開放させ、開閉弁２２が開弁状態となる。開弁状態では、一次室２３から二次室２４（個別流路３４）側への液体（塗料又は洗浄液）の流通が許容される。   The six valve mechanisms 20A to 20F all have the same structure, and an on-off valve 22 located near the manifold 11 is provided in a casing 21 configured by assembling a plurality of components. The on-off valve 22 allows the primary chamber 23 and the secondary chamber 24 to communicate with each other via a cylindrical valve seat 25, and causes the valve body 26 to contact and separate from the valve chamber 25 from the primary chamber 23 side. ing. The primary chamber 23 communicates with an inflow hole 27 connected to the paint supply sources 35B to 35F or the cleaning liquid supply source 35A. One end of a rod 28 is fixed to the valve body 26, and a piston 29 is fixed to the other end of the rod 28, and the spring force of the compression coil spring 30 is always applied to the piston 29. The valve body 26 is urged by a compression coil spring 30 in a valve closing direction that abuts the valve seat 25 and closes the valve port 31. When operating air is supplied to the pressurizing chamber 32, the valve body 26 is moved to the valve seat 26. The valve port 31 is opened away from the valve 25 and the on-off valve 22 is opened. In the valve open state, the flow of liquid (paint or cleaning liquid) from the primary chamber 23 to the secondary chamber 24 (individual flow path 34) is allowed.

二次室２４は、弁シート２５の円形断面の連通孔３３よりも大径の円形断面の孔状をなし、二次室２４における弁シート２５とは反対側の端部には、共通流路１２の内壁からマニホールド１１の外壁に連通する円形断面の分岐孔１３が、同軸状に連なっている。分岐孔１３の内径は二次室２４の内径と同寸法であり、二次室２４と弁シート２５の連通孔３３と分岐孔１３は、個別流路３４を構成している。この個別流路３４の中心線（軸線）は、共通流路１２の中心線（軸線）に対して直角をなしている。つまり、個別流路３４は共通流路１２に対して直角に分岐している。   The secondary chamber 24 has a hole shape with a circular cross section larger in diameter than the communication hole 33 with a circular cross section of the valve seat 25, and a common flow path is provided at the end of the secondary chamber 24 opposite to the valve seat 25. A branch hole 13 having a circular cross section that communicates from the inner wall of 12 to the outer wall of the manifold 11 is coaxially connected. The inner diameter of the branch hole 13 is the same as the inner diameter of the secondary chamber 24, and the communication hole 33 and the branch hole 13 of the secondary chamber 24 and the valve seat 25 constitute an individual flow path 34. The center line (axis line) of the individual flow path 34 is perpendicular to the center line (axis line) of the common flow path 12. That is, the individual flow path 34 branches at a right angle with respect to the common flow path 12.

６つのバルブ機構２０Ａ〜２０Ｆは、マニホールド１１を挟んで互いに反対側に位置するように３つずつ分かれて配置され、マニホールド１１（共通流路１２）の長さ方向に沿って一定のピッチで並んでいる。また、マニホールド１１の一方の側に位置する３つのバルブ機構２０Ａ，２０Ｃ，２０Ｅと他方の側位置する３つのバルブ機構２０Ｂ，２０Ｄ，２０Ｆは、互いに共通流路１２の長さ方向において１／２ピッチずつずれた配置、つまり、千鳥配置となっている。したがって、６つの個別流路３４は、共通流路１２の長さ方向において互いに異なる位置に開口していることになる。   The six valve mechanisms 20A to 20F are arranged separately by three so as to be located on opposite sides of the manifold 11, and are arranged at a constant pitch along the length direction of the manifold 11 (common flow path 12). It is out. Further, the three valve mechanisms 20A, 20C, 20E located on one side of the manifold 11 and the three valve mechanisms 20B, 20D, 20F located on the other side are ½ in the length direction of the common flow path 12. The arrangement is shifted by a pitch, that is, a staggered arrangement. Accordingly, the six individual flow paths 34 are opened at different positions in the length direction of the common flow path 12.

６つのバルブ機構２０Ａ〜２０Ｆのうち共通流路１２の最も上流側に位置する個別流路３４と連通するバルブ機構２０Ａ（開閉弁２２）には、洗浄液供給源３５Ａに接続されている。そして、洗浄液の個別流路３４よりも下流側に開口する５つの個別流路３４と連通する５つのバルブ機構２０Ｂ〜２０Ｆには、夫々、互いに種類（色）の異なる５つの塗料の塗料供給源３５Ｂ〜３５Ｆが接続されている。   Of the six valve mechanisms 20A to 20F, the valve mechanism 20A (open / close valve 22) communicating with the individual flow path 34 located on the most upstream side of the common flow path 12 is connected to the cleaning liquid supply source 35A. The five valve mechanisms 20B to 20F communicating with the five individual flow paths 34 opening downstream from the individual flow paths 34 of the cleaning liquid have paint supply sources for five different types of paint (colors). 35B to 35F are connected.

上記色替えバルブ１０には、洗浄液による個別流路３４の洗浄効果を高めるための手段として誘導部材４０が設けられている。誘導部材４０は、全体として中実のピン形状をなし、基部４１と転向部４２と進入部４３とを一体に形成したものである。
基部４１は、円形断面であって、外径寸法が軸線方向において一定であり、外径寸法に対して軸線方向の寸法が少し小さいドラム形をなす。基部４１の外径寸法は、分岐孔１３の内径よりも僅かに小さい寸法であり、共通流路１２よりも小さい寸法（例えば、共通流路１２の２／３の寸法）となっている。
転向部４２は、円形断面であって、外径寸法が軸線方向において次第に小さくなるようなテーパ状をなし、転向部４２の最大径側の端部が基部４１に対して同軸状に連なっている。転向部４２の最大外径は基部４１の外径と同じ寸法であり、転向部４２の軸線方向の寸法は、転向部４２の最大外径に対して充分に大きく、共通流路１２の内径とほぼ同じ寸法である。かかる転向部４２の外周面は、共通流路１２の長さ方向（軸線方向）に対して傾斜した転向面４２Ｓとなっている。
進入部４３は、円形断面であって、外径寸法が軸線方向において一定であり、外径寸法に対して軸線方向の寸法が充分に大きい円柱形をなす。進入部４３の外径寸法は、転向部４２の最小外径と同じ寸法であり、進入部４３は転向部４２における基部４１とは反対側の端部に対して同軸状に連なっている。 The color change valve 10 is provided with a guide member 40 as means for enhancing the cleaning effect of the individual flow path 34 by the cleaning liquid. The guide member 40 has a solid pin shape as a whole, and is formed integrally with a base 41, a turning portion 42, and an entry portion 43.
The base portion 41 has a circular cross section, and has a drum shape in which the outer diameter dimension is constant in the axial direction, and the axial dimension is slightly smaller than the outer diameter dimension. The outer diameter dimension of the base 41 is slightly smaller than the inner diameter of the branch hole 13 and is smaller than the common flow path 12 (for example, 2/3 of the common flow path 12).
The turning portion 42 has a circular cross section and has a tapered shape whose outer diameter dimension gradually decreases in the axial direction, and the end portion on the maximum diameter side of the turning portion 42 is concentrically connected to the base portion 41. . The maximum outer diameter of the turning portion 42 is the same as the outer diameter of the base portion 41, and the axial dimension of the turning portion 42 is sufficiently larger than the maximum outer diameter of the turning portion 42. The dimensions are almost the same. The outer peripheral surface of the turning portion 42 is a turning surface 42 </ b> S that is inclined with respect to the length direction (axial direction) of the common flow path 12.
The entry portion 43 has a circular cross section and has a cylindrical shape whose outer diameter dimension is constant in the axial direction and whose axial dimension is sufficiently larger than the outer diameter dimension. The outer diameter of the entry portion 43 is the same as the minimum outer diameter of the turning portion 42, and the entry portion 43 is connected to the end of the turning portion 42 opposite to the base 41 in a coaxial manner.

かかる誘導部材４０は、マニホールド１１に対してバルブ機構２０Ａ〜２０Ｆを組み付ける前に、予めマニホールド１１に組み付けられる。共通流路１２の内壁における各分岐孔１３とは反対側の位置には、円形の凹部１７が形成されており、誘導部材４０は、基部４１を先に向けて分岐孔１３からマニホールド１１内に差し入れ、基部４１を凹部１７に嵌合させる。このとき基部４１は、凹部１７に対して圧入することによって固着してもよく、接着剤で固着してもよく、溶接によって固着してもよい。誘導部材４０を組み付けた状態では、転向部４２が共通流路１２内を横切るように位置し、転向部４２の軸線と共通流路１２の軸線とは直角に交差する。また、進入部４３は、個別流路３４内に同軸上に進入した状態となっている。個別流路３４に対する進入部４３の進入深さは、個別流路３４の奥行き深さのほぼ１／２となっている。また、進入部４３の外径寸法は、個別流路３４における二次室２４及び分岐孔１３の内径のほぼ１／２である。尚、誘導部材４０は洗浄液用の個別流路３４にも設けられている。   The guide member 40 is assembled in advance to the manifold 11 before the valve mechanisms 20A to 20F are assembled to the manifold 11. A circular recess 17 is formed at a position on the inner wall of the common flow path 12 opposite to each branch hole 13, and the guide member 40 is placed from the branch hole 13 into the manifold 11 with the base 41 facing forward. Insert and fit the base 41 into the recess 17. At this time, the base 41 may be fixed by press-fitting into the concave portion 17, may be fixed with an adhesive, or may be fixed by welding. In the state where the guide member 40 is assembled, the turning part 42 is positioned so as to cross the common flow path 12, and the axis of the turning part 42 and the axis of the common flow path 12 intersect at a right angle. Further, the entry portion 43 is in a state of entering the individual flow path 34 coaxially. The entry depth of the entry portion 43 with respect to the individual flow path 34 is approximately ½ of the depth depth of the individual flow path 34. Further, the outer diameter dimension of the entry portion 43 is approximately ½ of the inner diameter of the secondary chamber 24 and the branch hole 13 in the individual flow path 34. The guide member 40 is also provided in the individual flow path 34 for the cleaning liquid.

次に、本実施形態の作用を説明する。
色替えの際には、全ての塗料用の開閉弁２２を閉弁した状態（弁口３１を閉じた状態）で洗浄液用の開閉弁２２のみを開弁し、洗浄液を共通流路１２内に供給する。共通流路１２内に供給される洗浄液は、供給路を通って塗装ガン１６内に至り、塗装ガン１６のノズルから噴出される。洗浄液が通過した流路内に残留していた塗料は、洗浄液とともに洗い流されるとともに、流路の内壁に付着している塗料も除去される。 Next, the operation of this embodiment will be described.
At the time of color change, only the cleaning liquid on / off valve 22 is opened with all the paint on / off valves 22 closed (the valve port 31 is closed), and the cleaning liquid is put into the common flow path 12. Supply. The cleaning liquid supplied into the common channel 12 reaches the coating gun 16 through the supply channel and is ejected from the nozzle of the coating gun 16. The paint remaining in the flow path through which the cleaning liquid has passed is washed away together with the cleaning liquid, and the paint adhering to the inner wall of the flow path is also removed.

さて、洗浄の際には、塗料用の開閉弁２２は弁口３１を閉じた閉弁状態となっているため、共通流路１２から分岐している各個別流路３４の上流端（共通流路１２とは反対側の端部）は袋小路状となる。このような袋小路状の個別流路３４には洗浄液が進入し難いのであるが、本実施形態では、その対策として誘導部材４０を設けている。
即ち、共通流路１２内を下流側に向かって流れる洗浄液は、転向部４２に当たり、転向面４２Ｓの傾斜によって進入部４３側つまり個別流路３４側へ流れの向きを変えられ、進入部４３の外周面に沿いつつ個別流路３４内に進入する。これにより、個別流路３４内に残留している塗料が洗浄液と一緒に洗い流されるとともに、個別流路３４の内壁に付着している塗料も洗浄液によって除去される。 When cleaning, the on-off valve 22 for paint is in a closed state with the valve port 31 closed, and therefore, the upstream end (common flow) of each individual flow path 34 branched from the common flow path 12. The end on the side opposite to the path 12) is in the form of a bag path. Although it is difficult for the cleaning liquid to enter the bag-shaped individual flow path 34, in this embodiment, the guide member 40 is provided as a countermeasure.
That is, the cleaning liquid flowing toward the downstream side in the common flow path 12 hits the turning portion 42, and the flow direction is changed to the entrance portion 43 side, that is, the individual flow passage 34 side by the inclination of the turning surface 42 </ b> S. It enters the individual flow path 34 along the outer peripheral surface. Thereby, the paint remaining in the individual flow path 34 is washed away together with the cleaning liquid, and the paint adhering to the inner wall of the individual flow path 34 is also removed by the cleaning liquid.

上述のように本実施形態においては、共通流路１２内の洗浄液の流れを個別流路３４側へ転向させる誘導部材４０を設けたので、個別流路３４内を確実に洗浄することができる。
また、進入部４３の個別流路３４への進入深さを、個別流路３４の奥行き深さのほぼ１／２の寸法としているので、進入部４３による洗浄液の誘導経路が長くなり、洗浄液を確実に個別流路３４内に流入させることができる。
また、進入部４３の外径を個別流路３４の内径のほぼ１／２の寸法としているので、個別流路３４内における洗浄液の流入可能な容積が十分に確保される。これにより、洗浄液は確実に個別流路３４内に流入することができる。
また、転向部４２が、共通流路１２内を流れる洗浄液を個別流路３４側に誘い込むように傾斜した転向面４２Ｓを備えているので、共通流路１２を流れる洗浄液は、転向面４２Ｓによって確実に個別流路３４に流入することができる。
また、共通流路１２の最も上流側の位置から分岐した個別流路３４に連なる開閉弁２２に、洗浄液供給源３５Ａを接続したので、洗浄液は、全ての塗料用の個別流路３４に確実に流入することができる。 As described above, in the present embodiment, since the guide member 40 for turning the flow of the cleaning liquid in the common channel 12 toward the individual channel 34 is provided, the inside of the individual channel 34 can be reliably cleaned.
In addition, since the depth of entry of the entry portion 43 into the individual flow path 34 is approximately half the depth of the depth of the individual flow path 34, the cleaning liquid guiding path by the entry portion 43 is lengthened, and the washing liquid is removed. It is possible to reliably flow into the individual flow path 34.
In addition, since the outer diameter of the entry portion 43 is approximately ½ of the inner diameter of the individual flow path 34, a sufficient volume for allowing the cleaning liquid to flow into the individual flow path 34 is ensured. Thereby, the cleaning liquid can surely flow into the individual flow path 34.
Further, since the turning section 42 includes the turning surface 42S inclined so as to draw the cleaning liquid flowing in the common flow path 12 toward the individual flow path 34, the cleaning liquid flowing in the common flow path 12 is surely secured by the turning face 42S. Can flow into the individual flow path 34.
In addition, since the cleaning liquid supply source 35A is connected to the on-off valve 22 connected to the individual flow path 34 branched from the most upstream position of the common flow path 12, the cleaning liquid is reliably supplied to all the individual flow paths 34 for the paint. Can flow in.

＜他の実施形態＞
本発明は上記記述及び図面によって説明した実施形態に限定されるものではなく、例えば次のような実施態様も本発明の技術的範囲に含まれる。
（１）個別流路に対する誘導部材の進入部の進入深さは、個別流路の奥行きの半分以下の寸法または半分以上の寸法であってもよい。
（２）誘導部材の進入部の外径は、個別流路の内径の１／２よりも大きい寸法であってもよい。
（３）誘導部材は、個別流路と同心に配置せず、個別流路に対して偏心して配置してもよい。
（４）誘導部材の軸線は、個別流路の軸線に対して傾いていてもよい。
（５）個別流路の断面形状は、円形に限らず、長円形、楕円形、方形等の形状としてもよい。
（６）誘導部材の進入部の断面形状は、円形に限らず、長円形、楕円形、方形等の形状としてもよい。
（７）誘導部材は、中実の丸ピン状に限らず、内部が中空となった筒形でもよい。筒形の場合、筒を構成する壁に貫通孔を形成してもよい。
（８）誘導部材は、軸線が直線状をなすピン状に限らず、Ｌ字形に屈曲した形状であってもよい。
（９）誘導部材の進入部は、外径寸法が軸方向において一定の円柱形に限らず、軸方向において外径寸法が変化するテーパ形状であってもよい。
（１０）誘導部材の転向部は、軸方向において外径寸法が変化するテーパ形状に限らず、外径寸法が軸方向において一定の円柱形にしてもよい。
（１１）誘導部材の進入部の断面形状を、個別流路の断面形状とは異なる形状としてもよい。
（１２）上記実施形態では複数の個別流路が共通流路を挟んで千鳥配置となっているが、個別流路の配置形態はこれに限らず、対をなす個別流路が共通流路を挟んで対向するように配置してもよく、複数の個別流路が共通流路から同じ側に枝分かれするように並列していてもよい。
（１３）１つの共通流路から分岐する個別流路の数は、６つに限らず、５つ以下または７つ以上としてもよい。
（１４）誘導部材は、洗浄液用の個別流路に設けなくてもよい。
（１５）個別流路は、共通流路に対して直角に分岐せず、共通流路に対して斜めに方向に分岐していてもよい。 <Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) The depth of entry of the guiding member with respect to the individual channel may be less than half the depth of the individual channel or more than half.
(2) The outer diameter of the entrance portion of the guide member may be larger than ½ of the inner diameter of the individual flow path.
(3) The guide member may not be arranged concentrically with the individual flow path but may be arranged eccentric with respect to the individual flow path.
(4) The axis of the guide member may be inclined with respect to the axis of the individual flow path.
(5) The cross-sectional shape of the individual channel is not limited to a circle, and may be an oval, an ellipse, a square, or the like.
(6) The cross-sectional shape of the entrance portion of the guide member is not limited to a circle, and may be an oval, an ellipse, a square, or the like.
(7) The guide member is not limited to a solid round pin shape, and may be a cylindrical shape having a hollow inside. In the case of a cylindrical shape, a through hole may be formed in a wall constituting the cylinder.
(8) The guide member is not limited to a pin shape whose axis is a straight line, but may be a shape bent in an L shape.
(9) The entrance portion of the guide member is not limited to a cylindrical shape whose outer diameter dimension is constant in the axial direction, but may be a tapered shape whose outer diameter dimension changes in the axial direction.
(10) The turning portion of the guide member is not limited to the tapered shape in which the outer diameter dimension changes in the axial direction, and may be a columnar shape in which the outer diameter dimension is constant in the axial direction.
(11) The cross-sectional shape of the entry portion of the guide member may be different from the cross-sectional shape of the individual flow path.
(12) In the above embodiment, the plurality of individual channels are arranged in a staggered manner with the common channel interposed therebetween, but the arrangement form of the individual channels is not limited to this, and the paired individual channels have the common channel. You may arrange | position so that it may pinch | interpose and may be arranged in parallel so that several separate flow paths may branch on the same side from a common flow path.
(13) The number of individual channels branched from one common channel is not limited to six, and may be five or less or seven or more.
(14) The guide member may not be provided in the individual flow path for the cleaning liquid.
(15) The individual flow paths may be branched obliquely with respect to the common flow path without being branched at right angles to the common flow path.

実施形態１の全体構成図Overall configuration diagram of Embodiment 1 色替えバルブの一部切欠正面図Partially cutaway front view of color change valve 図２の部分拡大断面図Partial enlarged sectional view of FIG. 色替えバルブの断面図Cross section of color change valve

符号の説明Explanation of symbols

１０…色替えバルブ
１２…共通流路
１６…塗装ガン
２２…開閉弁
３４…個別流路
３５Ｂ〜３５Ｆ…塗料供給源
３５Ａ…洗浄液供給源
４０…誘導部材
４２…転向部
４３…進入部 DESCRIPTION OF SYMBOLS 10 ... Color change valve 12 ... Common flow path 16 ... Coating gun 22 ... On-off valve 34 ... Individual flow path 35B-35F ... Paint supply source 35A ... Cleaning liquid supply source 40 ... Guidance member 42 ... Turning part 43 ... Entrance part

Claims (5)

色替えバルブを介して塗装ガンに塗料を供給するためのものであって、
前記色替えバルブが、共通流路から複数の個別流路を分岐させるとともに、前記複数の個別流路に夫々開閉弁を連通させ、いずれか１つの前記開閉弁には洗浄液供給源を接続し、残りの複数の前記開閉弁には夫々複数種類の塗料供給源を接続し、前記共通流路の下流端に前記塗装ガンを接続した形態となっている塗料供給装置において、
前記共通流路内に配置された転向部と、前記転向部から突出して前記個別流路内に配置された進入部とを備えた誘導部材が設けられていることを特徴とする塗料供給装置。 For supplying paint to the paint gun via the color change valve,
The color change valve branches a plurality of individual channels from a common channel, and communicates an on-off valve to each of the plurality of individual channels, and a cleaning liquid supply source is connected to any one of the on-off valves, In the paint supply apparatus in which a plurality of types of paint supply sources are connected to the remaining plurality of on-off valves, and the paint gun is connected to the downstream end of the common flow path,
A paint supply apparatus comprising: a turning member disposed in the common flow path; and a guide member provided with an entry part projecting from the turning part and disposed in the individual flow path. 前記進入部の前記個別流路への進入深さが、前記個別流路の奥行き深さの１／２かそれよりも大きい寸法とされていることを特徴とする請求項１記載の塗料供給装置。 2. The paint supply apparatus according to claim 1, wherein an entry depth of the entry portion into the individual flow path is set to a dimension that is 1/2 or greater than a depth depth of the individual flow path. . 前記個別流路の断面形状が円形をなし、
前記進入部が、前記個別流路と同心の円柱形をなし、
前記進入部の外径が、前記個別流路の内径の１／２かそれよりも小さい寸法とされていることを特徴とする請求項１又は請求項２記載の塗料供給装置。 The individual channel has a circular cross-sectional shape,
The entry part has a cylindrical shape concentric with the individual flow path,
The coating material supply apparatus according to claim 1 or 2, wherein an outer diameter of the entry portion is a size that is 1/2 or smaller than an inner diameter of the individual flow path. 前記転向部が、前記共通流路内を流れる洗浄液を前記個別流路側に誘い込むように傾斜した転向面を備えていることを特徴とする請求項１ないし請求項３のいずれかに記載の塗料供給装置。 The coating material supply according to any one of claims 1 to 3, wherein the turning section includes a turning surface inclined so as to draw the cleaning liquid flowing in the common flow channel toward the individual flow channel. apparatus. 前記複数の開閉弁のうち前記共通流路の最も上流側の位置から分岐した前記個別流路に連なる開閉弁に、前記洗浄液供給源が接続されていることを特徴とする請求項１ないし請求項４のいずれかに記載の塗料供給装置。 The cleaning liquid supply source is connected to an open / close valve connected to the individual flow path branched from the most upstream position of the common flow path among the multiple open / close valves. 5. The paint supply apparatus according to any one of 4 above.
JP2006200655A 2006-07-24 2006-07-24 Paint supplying apparatus Pending JP2008023480A (en)

Priority Applications (1)

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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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Family

ID=39114671

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Link
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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0369793A (en) * 1989-08-07 1991-03-26 Tsurumi Seiki:Kk Device and method of measuring groundwater
JPH08117658A (en) * 1994-10-18 1996-05-14 Toyota Auto Body Co Ltd Coating material feeder

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0369793A (en) * 1989-08-07 1991-03-26 Tsurumi Seiki:Kk Device and method of measuring groundwater
JPH08117658A (en) * 1994-10-18 1996-05-14 Toyota Auto Body Co Ltd Coating material feeder

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