JPS6232606Y2 - - Google Patents
Info
- Publication number
- JPS6232606Y2 JPS6232606Y2 JP1982122222U JP12222282U JPS6232606Y2 JP S6232606 Y2 JPS6232606 Y2 JP S6232606Y2 JP 1982122222 U JP1982122222 U JP 1982122222U JP 12222282 U JP12222282 U JP 12222282U JP S6232606 Y2 JPS6232606 Y2 JP S6232606Y2
- Authority
- JP
- Japan
- Prior art keywords
- piston
- cylinder
- valve
- spray gun
- pressure receiving
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000007921 spray Substances 0.000 claims description 22
- 239000007788 liquid Substances 0.000 claims description 10
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 238000012856 packing Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000010422 painting Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Nozzles (AREA)
- Spray Control Apparatus (AREA)
Description
【考案の詳細な説明】
本考案は、液体を噴霧するための特に遠隔自動
制御に適する空圧制御式スプレーガンに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pneumatically controlled spray gun particularly suitable for remote automatic control for atomizing liquids.
この種のスプレーガンの一般的な構成は、噴霧
する液体を噴霧ノズルに導く液体供給路に設けら
れた吐出口開閉弁の開閉を空圧シリンダにより制
御するようになつており、吐出口開閉弁の弁棒は
空圧シリンダの空圧受圧室側底部を貫通してシリ
ンダ内を摺動可能に設けたピストンに結合されて
おり、ピストンは空圧受圧室と反対側に設けられ
た圧縮バネにより常時吐出口開閉弁をその弁座に
押圧して閉鎖する方向に付勢されている。液体噴
霧時は送気管に設けた電磁弁等を遠隔制御により
開きシリンダ内の空圧受圧室に圧力空気を送気す
ることにより、上記のバネの力に抗してピストン
を弁が開く方向に移動せしめ、これによつて液体
をノズルに供給して噴霧を行なう。 The general configuration of this type of spray gun is such that a pneumatic cylinder controls the opening and closing of a discharge opening/closing valve provided in a liquid supply path that leads the liquid to be sprayed to a spray nozzle. The valve stem of the pneumatic cylinder is connected to a piston that penetrates the bottom of the pneumatic pressure receiving chamber side and is slidable inside the cylinder, and the piston is moved by a compression spring provided on the opposite side of the pneumatic pressure receiving chamber. The discharge port opening/closing valve is always pressed against its valve seat and biased in a direction to close it. When spraying liquid, a solenoid valve installed in the air supply pipe is opened by remote control and pressurized air is sent to the pneumatic pressure receiving chamber in the cylinder, which moves the piston in the direction in which the valve opens against the force of the spring mentioned above. This causes the liquid to be supplied to the nozzle for atomization.
以上の如く、圧力空気を空圧シリンダに給送す
ることによつてピストンに結合された弁棒を引く
ため、弁棒はシリンダの空圧受圧室側の底部を貫
通する構成となり、この貫通部には空圧受圧室内
の空気圧に対して気密を保持して弁棒の移動を可
能とするためにパツキンが挿入され、シリンダ内
の空圧受圧室側からパツキン押え部材で押圧して
パツキンを弁棒の外周面と貫通孔の内周面に密接
するようにしている。 As described above, in order to pull the valve stem connected to the piston by supplying pressurized air to the pneumatic cylinder, the valve stem is configured to pass through the bottom of the cylinder on the pneumatic pressure receiving chamber side, and this penetrating portion A gasket is inserted into the cylinder to maintain airtightness against the air pressure in the air pressure receiving chamber and to enable movement of the valve stem.The gasket is pressed from the air pressure receiving chamber side in the cylinder with a gasket holding member to press the gasket against the air pressure inside the cylinder. The outer circumferential surface of the rod and the inner circumferential surface of the through hole are brought into close contact.
ところで、従来の上記構成の空圧制御式スプレ
ーガンにおいては、吐出口開閉弁の弁棒が結合さ
れているピストンは単にその外周部にＯリングを
装着した単純な円板状のものが一般に使用されて
おり、そのために空圧シリンダーはピストンの両
側に、空圧受圧室側にはパツキン押え部材とその
受部を収容するに要する長さが、又その反対側に
は上記の圧縮バネを装備するのに必要な長さが
夫々必要となり、それに伴つてシリンダ全長が長
くなり、スプレーガン全体の大型化が免れなかつ
た。これがため、この空圧制御式自動スプレーガ
ンを自動塗装設備等に装着して使用した場合、ス
プレーガンの慣性重量が大きいことからスプレー
ガンの移動停止時の振れの多発、あるいは移動装
置の大型化等の種々の問題点が発生していた。 By the way, in the conventional pneumatically controlled spray gun with the above configuration, the piston to which the valve stem of the discharge port opening/closing valve is connected is generally a simple disk-shaped piston with an O-ring attached to its outer circumference. Therefore, the pneumatic cylinder is equipped on both sides of the piston, the length required to accommodate the gasket holding member and its receiving part is on the pneumatic pressure receiving chamber side, and the above-mentioned compression spring is installed on the opposite side. As a result, the overall length of the cylinder becomes longer, which inevitably increases the size of the spray gun as a whole. For this reason, when this pneumatically controlled automatic spray gun is attached to automatic painting equipment, etc., the inertial weight of the spray gun is large, resulting in frequent vibrations when the spray gun stops moving, or an increase in the size of the moving device. Various problems such as these occurred.
本考案は、従来の空圧制御式スプレーガンの上
記の問題点の解決に役立つ小型軽量な特に遠隔自
動制御に適する空圧制御式スプレーガンを提供す
ることを目的とする。 SUMMARY OF THE INVENTION An object of the present invention is to provide a pneumatically controlled spray gun that is small and lightweight and particularly suitable for remote automatic control, which helps solve the above-mentioned problems of conventional pneumatically controlled spray guns.
この目的は、本考案にもとづき、前記構成の空
圧制御式スプレーガンにおいて吐出口開閉弁々棒
が結合されるピストンの形状を従来の円板状と変
えて、空圧受圧室側に凹入部を向け端縁部に外方
に張出した鍔を有するコツプ状とし、上記のパツ
キン押え部材とその受部が前記ピストンの凹入部
に包含され、前記の圧縮バネの少くとも一部がシ
リンダ内面と鍔以外のピストン外周面との間に収
容される如く配置することにより達成される。 This purpose is based on the present invention, in which the shape of the piston to which the discharge port opening/closing valve rod is connected is changed from the conventional disc shape in the pneumatically controlled spray gun having the above configuration, and a recess is formed on the side of the pneumatic pressure receiving chamber. The above-mentioned packing pressing member and its receiving part are included in the recessed part of the piston, and at least a part of the above-mentioned compression spring is connected to the inner surface of the cylinder. This is achieved by arranging it so that it is accommodated between the piston outer circumferential surface other than the flange.
以下、本考案の詳細を図に示す実施例にもとづ
いて説明する。 Hereinafter, details of the present invention will be explained based on embodiments shown in the drawings.
第１図乃至第３図に示す実施例において、ノズ
ルキヤツプ１、ノズルチツプ２、シーリングニツ
プル４より構成されるノズル部は、空圧シリンダ
本体１２の前端にノズルナツト３により取付けら
れている。シリンダ本体１２の前端部の中心部に
は弁シート５が螺着され、その内部に設けられた
弁座５ａに接離する弁ボール６とにより、弁シー
ト５の先端に設けられた吐出口２７の開閉弁を構
成している。弁ボール６は、弁棒２２の先端に結
合されており、この弁棒はシリンダ本体１２の底
部を貫通した後、シリンダ室内を通り、シリンダ
室内を摺動可能に設けられたピストン１３に、弁
棒に形成された鍔２２ａと六角ナツト１８により
一体的に結合されている。シリンダ底部の弁棒２
２が貫通する個所には、気密を保持するためのパ
ツキン８を充填するリセスが設けられ、シリンダ
室側からおすアダプタ７、複数段のＶ形パツキン
８、めすアダプタ９を挿入した後、パツキンリセ
スに続いてシリンダ底部に設けられた押え部材受
け部１２ａのめねじにパツキン押え部材２０をね
じ込んでめすアダプター９を介してパツキン８を
締付け、パツキン８が弁棒２２の外周面とシリン
ダ１２のパツキンリセスの内面に適当な押圧力で
密着して気密を保持している。なお符号２１はＯ
リングを示す。その結果、シリンダ底部とピスト
ン１３との間には空圧受圧室２６が形成される。
弁棒２２が貫通するシリンダ底部と弁シート５の
間の空間には、噴霧すべき液体を吐出口２７に圧
送するためのエルボ２３が接続されている。又、
空圧受圧室２６に接続する流路１２ｂには圧力空
気給送管を接続するためのエア口金２４が接続さ
れている。 In the embodiment shown in FIGS. 1 to 3, a nozzle section consisting of a nozzle cap 1, a nozzle tip 2, and a sealing nipple 4 is attached to the front end of a pneumatic cylinder body 12 by a nozzle nut 3. A valve seat 5 is screwed into the center of the front end of the cylinder body 12, and a discharge port 27 provided at the tip of the valve seat 5 is formed by a valve ball 6 that approaches and separates from a valve seat 5a provided inside. It constitutes an on-off valve. The valve ball 6 is connected to the tip of a valve rod 22, and after passing through the bottom of the cylinder body 12, the valve ball 6 passes through the cylinder chamber and is attached to the piston 13, which is slidably provided in the cylinder chamber. It is integrally connected by a collar 22a formed on the rod and a hexagonal nut 18. Valve stem 2 at the bottom of the cylinder
A recess is provided at the place where the gasket 2 penetrates, into which a gasket 8 is filled to maintain airtightness.After inserting the male adapter 7, the multi-stage V-shaped gasket 8, and the female adapter 9 from the cylinder chamber side, the gasket recess is inserted. Next, screw the gasket holding member 20 into the female thread of the presser member receiving portion 12a provided at the bottom of the cylinder, and tighten the gasket 8 via the female adapter 9, so that the gasket 8 is connected to the outer peripheral surface of the valve stem 22 and the gasket of the cylinder 12. It adheres to the inner surface of the recess with an appropriate pressing force to maintain airtightness. Note that the code 21 is O
Showing the ring. As a result, an air pressure receiving chamber 26 is formed between the cylinder bottom and the piston 13.
An elbow 23 is connected to a space between the bottom of the cylinder through which the valve rod 22 passes and the valve seat 5 and the elbow 23 is used to forcefully feed the liquid to be sprayed to the discharge port 27 . or,
An air mouthpiece 24 for connecting a pressure air supply pipe is connected to the flow path 12b connected to the air pressure receiving chamber 26.
さて、ピストン１３の形状は、本考案にしたが
い、空圧受圧室２６側に凹入部を向け端縁部に外
周方向に張出した鍔１３ａを有するコツプ状に形
成され、鍔１３ａの外周面にはＯリング溝が形成
され、Ｏリング１０及びバツクアツプリング１１
を装着してシリンダ内周面との間の気密を保持し
ている。前記のパツキン押え部材２０とその受け
部１２ａはピストン１３の凹入部に包含されてい
る。鍔１３ａ以外のピストン１３の外周面とシリ
ンダ１２内周面との間には、ピストン１３を、こ
れに弁棒２２を介して接続された弁ボール６がそ
の弁座に押圧される方向に付勢するピストンスプ
リング１４が少くともその一部が収容される如く
設けられている。スプリング１４は一端がピスト
ン１３の鍔１３ａに当接し、他端を締付ボルト２
５により四隅でシリンダ本体１２の後端面に固定
されたスプリング押え部材１５で押圧されてシリ
ンダ内に締め込まれている。なお、スプリング押
え部材１５をシリンダ本体に取付ける際、第２図
及び第３図に示す如く、スプリング押え部材１５
の外面に該スプレーガンの取付金具２８が重ねて
取付けられる。スプリング押え部材１５の中央部
にはスプリング１６を介してノブ１７が螺着され
ている。又スプリング押え部材１５に対向するピ
ストン１３の面にはクツシヨン１９が装着されて
いる。 Now, according to the present invention, the shape of the piston 13 is formed into a pot shape with a flange 13a projecting outward in the outer circumferential direction at the end edge with the concave portion facing the air pressure receiving chamber 26 side, and the outer peripheral surface of the flange 13a is An O-ring groove is formed, and an O-ring 10 and a back-up spring 11 are formed.
is installed to maintain airtightness between the cylinder and the inner peripheral surface. The aforementioned packing pressing member 20 and its receiving portion 12a are included in the recessed portion of the piston 13. The piston 13 is attached between the outer circumferential surface of the piston 13 other than the collar 13a and the inner circumferential surface of the cylinder 12 in a direction in which a valve ball 6 connected to the piston 13 via a valve rod 22 is pressed against its valve seat. At least a portion of the piston spring 14 is disposed so as to accommodate the biasing piston spring 14. The spring 14 has one end in contact with the collar 13a of the piston 13, and the other end in contact with the tightening bolt 2.
5, the four corners of the cylinder body 12 are pressed by spring pressing members 15 fixed to the rear end surface of the cylinder body 12 and tightened into the cylinder. In addition, when attaching the spring presser member 15 to the cylinder body, as shown in FIGS. 2 and 3, the spring presser member 15
A mounting bracket 28 of the spray gun is attached to the outer surface of the spray gun. A knob 17 is screwed into the center of the spring pressing member 15 via a spring 16. Further, a cushion 19 is attached to the surface of the piston 13 facing the spring pressing member 15.
このスプレーガンは以上の如く構成されている
ので、エア口金２４より圧力空気がシリンダ内の
空圧受圧室２６に送気されると、ピストン１３は
スプリング１４の力に抗して弁棒２２、弁ボール
６と共にノブ１７側に摺動し、弁シート５の吐出
口２７が開かれ、エルボ２３より弁シート５内の
弁室に圧送された液体は、吐出口２７、シーリン
グニツプル４の貫通孔を経てノズルチツプ２の開
口部より霧となつて噴出する。 Since this spray gun is constructed as described above, when pressurized air is sent from the air mouthpiece 24 to the air pressure receiving chamber 26 in the cylinder, the piston 13 resists the force of the spring 14 and moves the valve rod 22, The valve ball 6 slides toward the knob 17 side, and the discharge port 27 of the valve seat 5 is opened. The mist is ejected from the opening of the nozzle tip 2 through the hole.
エア口金２４よりの圧力空気の圧入が解除され
ると、ピストンスプリング１４によつてピストン
１３はノズルの方向に押し戻され、弁棒２２を介
して弁ボール６は弁シート５の弁座５ａに当接し
て吐出口２７を閉じ、液体の吐出、噴霧が停止さ
れる。 When the pressurized air from the air mouthpiece 24 is released, the piston 13 is pushed back toward the nozzle by the piston spring 14, and the valve ball 6 hits the valve seat 5a of the valve seat 5 via the valve rod 22. This closes the discharge port 27 and stops the discharge and spraying of the liquid.
この装置では、ピストン１３の形状を上記の如
く鍔付コツプ形とし、その外周にピストンスプリ
ング１４の少くとも一部を保持し、一方凹入部に
パツキン押え部材２０及びその受け部１２ａを包
含するようにしたことにより、従来の空圧制御式
スプレーガンではピストンの両側に夫々別個に必
要としたこれらを収容するに要する長さを、相当
部分共用することができ、シリンダの長さをそれ
だけ短かくすることができるので、空圧制御式ス
プレーガンの小型軽量化が達成され、これを自動
塗装設備等に装着使用した場合、移動停止時の振
れの多発、あるいは移動装置の大型化の防止に顕
著な効果を得ることができる。 In this device, the shape of the piston 13 is a flanged cup shape as described above, and at least a part of the piston spring 14 is held on its outer periphery, while the seal holding member 20 and its receiving part 12a are included in the recessed part. By doing so, a considerable portion of the length required to accommodate these components, which were required separately on both sides of the piston in conventional pneumatically controlled spray guns, can be shared, and the length of the cylinder can be shortened accordingly. As a result, the pneumatically controlled spray gun has been made smaller and lighter, and when installed in automatic painting equipment, etc., it is extremely effective in preventing frequent vibrations when stopping movement or increasing the size of the moving equipment. effect can be obtained.
第１図は本考案による空圧制御式スプレーガン
の実施例の縦断面図、第２図はその上面図、第３
図はその下面図である。
１，２……噴霧ノズル、５ａ……弁座、６……
吐出口開閉弁（弁ボール）、８……パツキン、１
２……シリンダ、１３……ピストン、１３ａ……
鍔、１４……圧縮バネ（ピストンスプリング）、
２０……パツキン押え部材、２２……弁棒、２３
……液体供給用エルボ、２４……圧力空気給送用
口金、２６……空圧受圧室、２７……吐出口。
Fig. 1 is a longitudinal sectional view of an embodiment of the pneumatically controlled spray gun according to the present invention, Fig. 2 is a top view thereof, and Fig. 3
The figure is a bottom view. 1, 2... Spray nozzle, 5a... Valve seat, 6...
Discharge port opening/closing valve (valve ball), 8... Packing, 1
2...Cylinder, 13...Piston, 13a...
Tsuba, 14...compression spring (piston spring),
20...Packing member, 22...Valve stem, 23
... Elbow for liquid supply, 24 ... Mouthpiece for supplying pressurized air, 26 ... Air pressure receiving chamber, 27 ... Discharge port.
Claims (1)
た吐出口開閉弁の開閉を空圧シリンダにより制御
する空圧制御式スプレーガンであつて、上記吐出
口開閉弁の弁棒が上記空圧シリンダの空圧受圧室
側底部をパツキンを介して貫通し、該シリンダ内
を摺動可能なピストンに結合され、上記パツキン
は空圧受圧室側よりパツキン押え部材で押圧さ
れ、上記ピストンは空圧受圧室の反対側に設けた
圧縮バネで常時吐出口開閉弁をその弁座に押圧し
て閉鎖する方向に付勢され、圧力空気を上記空圧
受圧室に給送している間上記ピストンは上記の圧
縮バネに抗して弁を開く位置に保持されるように
したスプレーガンにおいて、上記のピストンの形
状を空圧受圧室側に凹入部を向け、端縁部に外周
方向に張出した鍔を有するコツプ状とし、上記の
パツキン押え部材とその受け部とが上記のピスト
ンの凹入部に包含され、上記の圧縮バネの少くと
も一部がシリンダ内面と鍔以外のピストン外周面
との間に収容される如く配置されていることを特
徴とするスプレーガン。 A pneumatically controlled spray gun that uses a pneumatic cylinder to control the opening and closing of a discharge opening/closing valve provided in a liquid supply path that leads liquid to a spray nozzle, wherein the valve stem of the discharge opening/closing valve is connected to the pneumatic cylinder. The bottom part of the pneumatic pressure receiving chamber is penetrated through a gasket and is connected to a piston that can slide inside the cylinder. A compression spring provided on the opposite side of the piston is normally biased in the direction of closing the discharge port opening/closing valve by pressing it against its valve seat, and while supplying pressurized air to the air pressure receiving chamber, the piston is In a spray gun that is held in a position where the valve is opened against a compression spring, the piston has the above-mentioned shape with the concave portion facing the air pressure receiving chamber and a flange extending toward the outer circumference at the end edge. The seal presser member and its receiving portion are contained in the recessed portion of the piston, and at least a portion of the compression spring is housed between the inner surface of the cylinder and the outer circumferential surface of the piston other than the flange. A spray gun characterized by being arranged in a manner that allows
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12222282U JPS5927846U (en) | 1982-08-13 | 1982-08-13 | Pneumatically controlled spray gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12222282U JPS5927846U (en) | 1982-08-13 | 1982-08-13 | Pneumatically controlled spray gun |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5927846U JPS5927846U (en) | 1984-02-21 |
| JPS6232606Y2 true JPS6232606Y2 (en) | 1987-08-20 |
Family
ID=30279451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12222282U Granted JPS5927846U (en) | 1982-08-13 | 1982-08-13 | Pneumatically controlled spray gun |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5927846U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5337653A (en) * | 1976-09-15 | 1978-04-06 | Pfizer | 111deoxyy111oxaprostaglandin compound |
| JPS566555U (en) * | 1979-06-28 | 1981-01-21 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5532954Y2 (en) * | 1977-03-09 | 1980-08-05 |
-
1982
- 1982-08-13 JP JP12222282U patent/JPS5927846U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5337653A (en) * | 1976-09-15 | 1978-04-06 | Pfizer | 111deoxyy111oxaprostaglandin compound |
| JPS566555U (en) * | 1979-06-28 | 1981-01-21 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5927846U (en) | 1984-02-21 |
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