JPH0611007U - Liquid flow rate adjustment mechanism - Google Patents
Liquid flow rate adjustment mechanismInfo
- Publication number
- JPH0611007U JPH0611007U JP10908991U JP10908991U JPH0611007U JP H0611007 U JPH0611007 U JP H0611007U JP 10908991 U JP10908991 U JP 10908991U JP 10908991 U JP10908991 U JP 10908991U JP H0611007 U JPH0611007 U JP H0611007U
- Authority
- JP
- Japan
- Prior art keywords
- flow rate
- rate adjusting
- needle valve
- tube body
- elastic tube
- 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
Landscapes
- Fluid-Driven Valves (AREA)
- Nozzles (AREA)
- Coating Apparatus (AREA)
- Flow Control (AREA)
- Lift Valve (AREA)
Abstract
(57)【要約】
【目的】 塗装装置の塗料の送量等を迅速かつ精確に調
整し、かつ、優れた工場内レイアウト性能とメンテナン
ス性能を有する液体の流量調整機構を提供する。
【構成】 進退自在のニードル弁３と、ニードル弁３の
進退作動用の弾性チューブ体５を内臓装着した流量調整
部１と、電気信号空気圧変換器２との組合せからなり、
電気信号空気圧変換器２と流量調整部１は隔離配列され
て可撓性のエアーホース６で接続され、さらに、弾性チ
ューブ体５は、流量調整部１の中空部１１に膨縮径自在
にストレート状に収納されると共に、前端をニードル弁
３の後端に接続し、かつ、後端を流量調整部１に固定し
てエアーホース６と連通して装着され、電気信号４によ
るエアー圧をエアーホース６を介して弾性チューブ体５
に伝達し、そのエアー圧による弾性チューブ体６の膨縮
径によってニードル弁３を進退させて流量調整をなす構
造が特徴である。
(57) [Summary] [Purpose] To provide a liquid flow rate adjusting mechanism that adjusts the amount of paint, etc., of a coating device quickly and accurately and has excellent in-plant layout performance and maintenance performance. [Structure] A combination of a needle valve 3 capable of advancing and retreating, a flow rate adjusting unit 1 in which an elastic tube body 5 for advancing and retracting the needle valve 3 is installed, and an electric signal pneumatic converter 2,
The electric signal / pneumatic pressure converter 2 and the flow rate adjusting unit 1 are separately arranged and connected by a flexible air hose 6, and the elastic tube body 5 is straightened in a hollow portion 11 of the flow rate adjusting unit 1 so that the diameter can be freely expanded and contracted. It is housed in a circular shape, and the front end is connected to the rear end of the needle valve 3 and the rear end is fixed to the flow rate adjusting unit 1 so as to communicate with the air hose 6, and the air pressure by the electric signal 4 is supplied to the air. Elastic tube body 5 through hose 6
And the flow rate is adjusted by advancing and retracting the needle valve 3 by the expansion and contraction diameter of the elastic tube body 6 due to the air pressure.
Description
【０００１】[0001]
本考案は、例えばスプレーガン等の塗装機への塗料の送出量調整等に使用する 液体の流量調整機構に関するものである。 The present invention relates to a liquid flow rate adjusting mechanism used for adjusting the amount of paint delivered to a coating machine such as a spray gun.
【０００２】[0002]
例えば、自動車車体の塗装において、自動塗装機によって美装仕上げを得るた めには、塗膜の均一性が重要な要件となる。しかし、塗り込み性の観点からは、 車体の部分によって意図的に塗膜を厚くする必要があり、スプレーガン等の塗装 機からの塗料吐出量を、その要求膜厚の変動に対応させて迅速かつ精確に調整す ることが要求される。 For example, in the coating of automobile bodies, the uniformity of the coating film is an important requirement in order to obtain a beautiful finish with an automatic coating machine. However, from the standpoint of coatability, it is necessary to intentionally increase the thickness of the coating film depending on the car body, and the amount of coating material discharged from a coating machine such as a spray gun can be adjusted quickly in response to fluctuations in the required film thickness. And precise adjustment is required.
【０００３】 そこで、以上の要求性能を満す流量調整機構として、実公平２ー３１１６７号 公報に示されたものがある。即ち、この公知例のものは「エンコーダを有するパ ルスモーターからなるパルス駆動部と、回転運動を直線運動に変換する運動変換 機構とニードル弁を有する流量調整部からなり、このパルス駆動部と流量調整部 は隔離配列されてケーブル接続されており、パルス信号による該パルスモーター の回転をケーブルを介して該流量調整部に伝達し、その伝達された回転を直線運 動に変換してニードル弁に伝達し、パルス信号に同期させたニードル弁の進退作 動によって送出量を調整する構造」になっている。Therefore, as a flow rate adjusting mechanism satisfying the above-mentioned required performance, there is one disclosed in Japanese Utility Model Publication No. 2-31167. That is, this known example is composed of a "pulse drive unit consisting of a pulse motor having an encoder, a motion conversion mechanism converting a rotary motion into a linear motion, and a flow rate adjusting unit having a needle valve. The adjusting unit is arranged in an isolated arrangement and is connected to the cable, and the rotation of the pulse motor due to the pulse signal is transmitted to the flow rate adjusting unit via the cable, and the transmitted rotation is converted into linear movement to be transferred to the needle valve. The structure is such that the delivery amount is adjusted by the forward / backward movement of the needle valve that is transmitted and synchronized with the pulse signal.
【０００４】[0004]
以上の公知例の液体の流量調整機構は、塗装機の塗料調整に用いると、迅速か つ精確に塗料送出量を調整する作用が存在する。しかし、・パルス駆動部と流量 調整部に接続されて両者間の回転伝達をなすケーブルは、円滑な回転伝達をなす 為には、長さが概ね５メートル以内に制限されると共に、曲げ半径も概ね１メー トル以上に大きくする必要があり、限定されたスペース内で自由度の高いレイア ウト性能が求められる工場の量産塗装機用として実用性に欠ける、・回転伝達機 構が存在して伝達部分の摩耗を生じ易いので、精確な流量調整機能を維持するた めのメンテナンスコストが高くなる、・流量調整部に運動変換機構が存在するの で、流量調整部が膨大化重量化する、以上の実用上の諸難点がある。 The above-described liquid flow rate adjusting mechanism of the known example has a function of quickly and accurately adjusting the paint delivery amount when used for the paint adjustment of a coating machine. However, ・ The cable connected to the pulse drive unit and the flow rate adjustment unit for transmission of rotation between them is limited to a length of approximately 5 meters or less in order to ensure smooth transmission of rotation. It needs to be larger than approximately 1 meter, which is not practical for mass-production coating machines in factories that require layout flexibility with a high degree of freedom in a limited space. ・ Rotation transmission mechanism exists for transmission. Since the parts are likely to be worn, the maintenance cost for maintaining the accurate flow rate adjustment function is high. ・ The movement adjustment mechanism is present in the flow rate adjustment section, so the flow rate adjustment section becomes huge and heavy. There are various practical problems.
【０００５】 本考案は、以上の従来技術の諸難点を解消する液体の流量調整機構を提供する ものである。The present invention provides a liquid flow rate adjusting mechanism that solves the above-mentioned problems of the conventional technology.
【０００６】[0006]
以上の技術課題を解決する本考案の流量調整機構は「進退自在のニードル弁と 、該ニードル弁の進退作動用の弾性チューブ体を装着した流量調整部と、電気信 号空気圧変換器との組合せからなり、該電気信号空気圧変換器と該流量調整部は 隔離配列されて可撓性のエアーホースで接続され、さらに、前記弾性チューブ体 は、前記流量調整部の中空部に膨縮径自在にストレート状に収納されると共に、 前端を前記ニードル弁の後端に接続し、かつ、後端を流量調整部に固定して前記 エアーホースと連通して装着され、電気信号によるエアー圧を前記エアーホース を介して前記弾性チューブ体に伝達し、該エアー圧による前記弾性チューブ体の 膨縮径によってニードル弁を進退させて流量調整をなす構造」が特徴である。 The flow rate adjusting mechanism of the present invention that solves the above technical problem is a combination of an "advance and retractable needle valve, a flow rate adjusting section equipped with an elastic tube body for advancing and retracting the needle valve, and an electric signal pneumatic converter. The electric signal pneumatic pressure converter and the flow rate adjusting unit are separately arranged and connected by a flexible air hose, and the elastic tube body is expandable and contractible in a hollow portion of the flow rate adjusting unit. It is stored straightly, the front end is connected to the rear end of the needle valve, and the rear end is fixed to the flow rate adjusting part and is connected in communication with the air hose. The structure is characterized in that it is transmitted to the elastic tube body via a hose, and the needle valve is advanced and retracted by the expansion and contraction diameter of the elastic tube body by the air pressure to adjust the flow rate.
【０００７】[0007]
以上の構成の本考案の流量調整機構は、電気信号によって制御されるエアー圧 が、電気信号空気圧変換器から送出されてエアーホースを通して弾性チューブ体 に伝達されると、その弾性チューブ体はエアー圧に比例して弾性的に膨縮径作用 をなす。そして、その膨縮径作用をなす弾性チューブ体は、後端が流量調整部に 固定され、かつ、前端が進退自在のニードル弁の後端に接続されているので、そ の膨縮径に基づく弾性チューブ体の長さ伸縮によってニードル弁が進退作動し、 そのニードル弁の進退によって流量調整部から送出される液体の送出量を、迅速 かつ精確に調整することができる。 In the flow rate adjusting mechanism of the present invention having the above configuration, when the air pressure controlled by the electric signal is sent from the electric signal pneumatic pressure converter and transmitted to the elastic tube body through the air hose, the elastic tube body is compressed by the air pressure. Elastically expands and contracts in proportion to. Since the rear end of the elastic tube body that performs the expansion / contraction diameter action is fixed to the flow rate adjusting portion and the front end is connected to the rear end of the retractable needle valve, it is based on the expansion / contraction diameter. The needle valve is moved forward and backward by the expansion and contraction of the length of the elastic tube body, and the forward and backward movement of the needle valve allows the amount of liquid delivered from the flow rate adjusting unit to be adjusted quickly and accurately.
【０００８】 そして、以上の流量調整作用をなす流量調整部と電気信号空気圧変換器は隔離 配列されて可撓性のエアーホースで接続されているので、そのエアーホースは、 長さが概ね２５メートルまでにしてゼロ近い極微小半径の曲げ半径が実用的に可 能になり、前記の電気信号空気圧変換器と流量調整部の間隔とエアーホースの配 設姿勢の採択自由度が、従来のものより特段に向上する。そして、流量調整機構 の全体を通して回転摺動部が存在しないので、精確な流量調整を維持するための 精度が長期間安定すると共に、流量調整部の小形化軽量化が可能になる。以上の 作用がある。[0008] Since the flow rate adjusting section that performs the above-mentioned flow rate adjusting action and the electric signal pneumatic converter are separated and connected by a flexible air hose, the length of the air hose is approximately 25 meters. By doing so, a bending radius of a very small radius close to zero becomes practically possible, and the degree of freedom in adopting the distance between the electric signal pneumatic converter and the flow rate adjusting unit and the installation posture of the air hose is higher than that of the conventional one. Improves remarkably. Since there is no rotary sliding part throughout the flow rate adjusting mechanism, the accuracy for maintaining accurate flow rate adjustment is stable for a long period of time, and the flow rate adjusting part can be made smaller and lighter. It has the above effects.
【０００９】[0009]
以下、実施例に基づいて詳しく説明する。自動車車体の量産塗装装置の塗料調 整に応用した本考案の一実施例を示す図１図２を参照して、本考案の流量調整機 構は進退自在のニードル弁３と弾性チューブ体５を内臓装着した流量調整部１と 、電気信号４（電圧）によってエアー入力部１６からの入力エアーを所要のエア ー圧に変換調整して圧力エアーを送出する公知の電気信号空気圧変換器２（以下 、単に変換器２という）との組合せからなり、その変換器２のエアー送出口７と 流量調整部１の弾性チューブ体５の後端が可撓性のエアーホース６によって接続 され、エアー送出口７と弾性チューブ体５の中空部１１がエアーホース６を通し て連通している。 Hereinafter, a detailed description will be given based on examples. FIG. 1 showing an embodiment of the present invention applied to the paint adjustment of a mass-production painting apparatus for automobile bodies. Referring to FIG. 2 and FIG. 2, the flow rate adjusting mechanism of the present invention includes a needle valve 3 and an elastic tube body 5 which can move back and forth. A built-in flow rate adjusting unit 1 and a known electric signal pneumatic pressure converter 2 (hereinafter referred to as an electric signal pneumatic pressure converter 2 for converting and adjusting the input air from the air input unit 16 into a required air pressure by an electric signal 4 (voltage) and sending out compressed air. , The converter 2), and the air outlet 7 of the converter 2 and the rear end of the elastic tube body 5 of the flow rate adjusting unit 1 are connected by a flexible air hose 6. 7 and the hollow portion 11 of the elastic tube body 5 communicate with each other through the air hose 6.
【００１０】 詳しくは、流量調整部１は、図２参照、前半にニードル弁３を進退自在に内蔵 して、そのニードル弁３の進退によって液体送入口８から流入した液体を調量し て液体送出口９から送出するニードル弁構造に構成されている。そして、この流 量調整部１の後半は、外套管部１０となって中空部１１に、下記に詳述する弾性 チューブ体５をストレート状に収納している。即ち、弾性チューブ体５は、概ね ０．５kg／cm2〜５kg／cm2のエアー圧によって中空胴部１５が膨径したり縮径す る高弾性のゴム製細長体のチューブであり、両端に前端固定具１２と後端固定具 １３を有し、その前端固定具１２がニードル弁３の後端に連結されて弾性チュー ブ体５の前端を閉鎖すると共に、後端固定具１３が、外套管１０側の固定ボルト １４によって外套管１０に固定され、さらに、この後端固定具１３はエアーホー ス６の先端と連結され、エアーホース６と弾性チューブ体５は連通し、弾性チュ ーブ体６は外套部１０内に膨径縮径自在に装着されている。Specifically, referring to FIG. 2, the flow rate adjusting unit 1 has a needle valve 3 built in the first half thereof so as to be able to move forward and backward, and as the needle valve 3 moves forward and backward, the liquid flowing in from the liquid inlet 8 is metered. It has a needle valve structure for delivering from the delivery port 9. In the latter half of the flow rate adjusting portion 1, an outer tube portion 10 is formed, and an elastic tube body 5, which will be described in detail below, is housed in the hollow portion 11 in a straight shape. That is, the elastic tube member 5 is a tube of approximately 0.5kg / cm 2 ~5kg / cm hollow body portion 15 by the air pressure of 2 you diameter or upset high elastic rubber elongate body, both ends Has a front end fixing tool 12 and a rear end fixing tool 13, and the front end fixing tool 12 is connected to the rear end of the needle valve 3 to close the front end of the elastic tube body 5, and the rear end fixing tool 13 is It is fixed to the outer tube 10 by a fixing bolt 14 on the outer tube 10 side, and the rear end fixture 13 is connected to the tip of the air hose 6 so that the air hose 6 and the elastic tube body 5 communicate with each other. The body 6 is mounted in the outer jacket 10 so as to be capable of expanding and contracting.
【００１１】 そして、エアーホース６から伝送されてきたエアー圧によって、弾性チューブ 体５が図示点線のように膨径または縮径すると、弾性チューブ体５の長さが伸縮 して、その先端が流量調整部１の周壁に対して、図示矢印Ａのように相対的に進 退作動し、その進退作動によってニードル弁３を進退させて流量調整する構造に なっている。Then, when the elastic tube body 5 is expanded or contracted by the air pressure transmitted from the air hose 6 as shown by the dotted line in the figure, the length of the elastic tube body 5 expands and contracts, and the tip of the elastic tube body 5 flows. As shown by an arrow A in the drawing, the needle valve 3 is moved forward and backward relative to the peripheral wall of the adjusting portion 1, and the needle valve 3 is moved forward and backward to adjust the flow rate.
【００１２】 以上の実施例の流量調整機構は、前記の作用がある。即ち、変換器２から送出 されるエアー圧力に基づく弾性チューブ体５の膨縮径による長さ伸縮量と、その エアー圧力との相関を予め計量しておくと、変換器２へ入力する電気信号４の制 御によって、ニードル弁３から調量送出される塗料の送量を迅速かつ精確に調整 することができる。そして、当該調整機構の主要部を連結するエアーホース６は 、概ね２５メートル長まで実用可能である上、ゼロに近い極小の曲げ半径でも実 用可能であり、さらに、回転機構不存在のため精度維持性能も良く、量産工場に おける塗装装置の塗料の調整装置用として極めて有用に使用できる。The flow rate adjusting mechanism of the above embodiment has the above-mentioned operation. That is, if the correlation between the length expansion / contraction amount due to the expansion / contraction diameter of the elastic tube body 5 based on the air pressure sent from the converter 2 and the air pressure is measured in advance, the electric signal input to the converter 2 is obtained. By the control of 4, it is possible to quickly and accurately adjust the amount of paint to be metered from the needle valve 3. The air hose 6 that connects the main parts of the adjusting mechanism can be practically used up to a length of about 25 meters, and can be used even with a minimum bending radius close to zero. It has good maintenance performance and can be used very usefully as a paint adjusting device for painting equipment in mass production plants.
【００１３】[0013]
以上の説明のとおり、本考案の液体の流量調整機構は、液体の流量調整が迅速 かつ精確にできる優れた性能を有すると共に、隔離した機構主要部を接続するエ アーホースの長さと曲げ半径が自由度高く採択可能になる優れたレイアウト性能 を有し、その上、回転摺動機構の不存在によって精度維持のメンテナンス性の向 上と、機構の小形化軽量化を図る優れた実用性を有し、工場の量産塗装装置の塗 料の流量調整用等として極めて有用に使用できる。 As described above, the liquid flow rate adjustment mechanism of the present invention has excellent performance that allows quick and accurate adjustment of the liquid flow rate, and the length and bending radius of the air hose connecting the isolated main parts of the mechanism are free. It has excellent layout performance that can be adopted frequently, and also has excellent practicability to reduce the size and weight of the mechanism by improving the maintainability of accuracy maintenance due to the absence of the rotary sliding mechanism. It can be used very usefully for adjusting the flow rate of coating material in mass production coating equipment in factories.
【図１】本考案一実施例の液体の流量調整機構を示す正
面図FIG. 1 is a front view showing a liquid flow rate adjusting mechanism according to an embodiment of the present invention.
【図２】図１実施例の流量調整部の拡大正面図FIG. 2 is an enlarged front view of a flow rate adjusting unit of FIG. 1 embodiment.
１ 流量調整部 ２ 電気信号空気圧変換器 ３ ニードル弁 ４ 電気信号 ５ 弾性チューブ体 ６ エアーホース ７ エアー送出口 １０ 外套管部 １１ 中空部 １３ 固定具 １４ 固定ボルト １５ 中空胴部 １６ エアー入力部 DESCRIPTION OF SYMBOLS 1 Flow rate adjusting part 2 Electric signal pneumatic converter 3 Needle valve 4 Electric signal 5 Elastic tube body 6 Air hose 7 Air outlet 10 Outer tube part 11 Hollow part 13 Fixing tool 14 Fixing bolt 15 Hollow body part 16 Air input part
Claims (1)
の進退作動用の弾性チューブ体を装着した流量調整部
と、電気信号空気圧変換器との組合せからなり、該電気
信号空気圧変換器と該流量調整部は隔離配列されて可撓
性のエアーホースで接続され、さらに、前記弾性チュー
ブ体は、前記流量調整部の中空部に膨縮径自在にストレ
ート状に収納されると共に、前端を前記ニードル弁の後
端に接続し、かつ、後端を流量調整部に固定して前記エ
アーホースと連通して装着され、電気信号によるエアー
圧を前記エアーホースを介して前記弾性チューブ体に伝
達し、該エアー圧による前記弾性チューブ体の膨縮径に
よってニードル弁を進退させて流量調整をなす構造を特
徴とする液体の流量調整機構。1. A combination of an advancing / retreating needle valve, a flow rate adjusting unit having an elastic tube body for advancing / retreating the needle valve, and an electric signal pneumatic pressure converter, wherein the electric signal pneumatic pressure converter and the electric signal pneumatic pressure converter are combined. The flow rate adjusting parts are arranged in an isolated arrangement and connected by a flexible air hose, and further, the elastic tube body is accommodated in the hollow part of the flow rate adjusting part in a straight shape so that the diameter can be expanded and contracted, and the front end thereof is It is connected to the rear end of the needle valve and fixed at the rear end to the flow rate adjusting part so as to communicate with the air hose, and the air pressure by an electric signal is transmitted to the elastic tube body through the air hose. A flow rate adjusting mechanism for a liquid, characterized in that the needle valve is moved forward and backward by the expansion and contraction diameter of the elastic tube body by the air pressure to adjust the flow rate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10908991U JPH0726732Y2 (en) | 1991-12-10 | 1991-12-10 | Liquid flow rate adjustment mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10908991U JPH0726732Y2 (en) | 1991-12-10 | 1991-12-10 | Liquid flow rate adjustment mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0611007U true JPH0611007U (en) | 1994-02-10 |
| JPH0726732Y2 JPH0726732Y2 (en) | 1995-06-14 |
Family
ID=14501312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10908991U Expired - Lifetime JPH0726732Y2 (en) | 1991-12-10 | 1991-12-10 | Liquid flow rate adjustment mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0726732Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012529050A (en) * | 2009-06-05 | 2012-11-15 | エックスワイ，エルエルシー | Continuously regulated precision pressure fluid delivery system |
-
1991
- 1991-12-10 JP JP10908991U patent/JPH0726732Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012529050A (en) * | 2009-06-05 | 2012-11-15 | エックスワイ，エルエルシー | Continuously regulated precision pressure fluid delivery system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0726732Y2 (en) | 1995-06-14 |
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Legal Events
| Date | Code | Title | Description |
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| EXPY | Cancellation because of completion of term |