JPH0138649Y2 - - Google Patents
Info
- Publication number
- JPH0138649Y2 JPH0138649Y2 JP1982126722U JP12672282U JPH0138649Y2 JP H0138649 Y2 JPH0138649 Y2 JP H0138649Y2 JP 1982126722 U JP1982126722 U JP 1982126722U JP 12672282 U JP12672282 U JP 12672282U JP H0138649 Y2 JPH0138649 Y2 JP H0138649Y2
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- valve
- chamber
- pressure regulating
- inlet
- 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
- 230000001105 regulatory effect Effects 0.000 claims description 21
- 239000003973 paint Substances 0.000 claims description 19
- 239000007921 spray Substances 0.000 claims description 12
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 235000013361 beverage Nutrition 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Description
【考案の詳細な説明】
本考案は、末端における弁部の開閉回数が著し
く多い噴霧ガンを使用する塗装装置に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a coating apparatus that uses a spray gun in which a valve portion at its end is opened and closed extremely many times.
液体塗料を常時一定圧力のもとに間欠的に供給
する必要のある塗装装置には、加圧塗料供給源か
ら噴霧ガンに到る塗料供給路に、従来例えば第１
図のように、一次側流入口１および二次側流出口
２があるほか流入口１に近く、比較的弱いばね３
により閉止する弁体４を設けた弁室５と、調圧室
６とをダイヤフラム７により仕切る状態のもとに
ねじ８により締め付け結合するほか、調圧室６内
にはダイヤフラム７を押圧するばね９と調整ねじ
１０により調節することができるようにすると共
に、ダイヤフラム７と前記弁体４とを弁杆１１に
より連結し、以つて流入口１を一定の比較的高圧
の塗料供給源１２に連通させたまま調整ねじ１０
を適切に調定した状態のもとに二次側流出口２に
対する供給塗料を一定の低圧に保つようにした減
圧弁を使用し、あるいは第２図のように第１図に
おけるばね９および調節ねじ１０に代え調圧室６
内に加圧空気を空気供給源１３から供給するよう
にした減圧弁を使用するのであるが、前者即ち第
１図の減圧弁によれば二次側の圧力調節は微調整
が可能でかつ応答も比較的良好であるため多用さ
れているが、二次側圧力を変更もしくは調節する
場合に遠隔操作ができない不利があり、また第２
図の減圧弁によれば遠隔操作に適応するが、圧力
調整の対象流体が特に圧縮性が殆んどない液体塗
料である関係上、二次側塗料の消費により弁室５
内容積の急激な縮減傾向に基づくダイヤフラム７
全体の作動に先だつて周辺寄り部分だけが変形
し、これに伴なう調圧室６の容積膨張により調圧
室６内の圧力が一時的に低下するから、二次側塗
料の消費に伴ない即座に弁４を開通させる必要性
があるにも拘わらず、調圧室６の一時的圧力低下
による作動の遅れが生じて応答が遅くなる欠点が
あり、また反対に二次側塗料の消費が停止された
場合には、前記とは反対に調圧室６の容積が減少
して調圧室６内の圧力が一時的に増大するから、
二次側塗料の消費停止に伴ない即座に弁４を閉止
させる必要があるにも拘わらず、作動が遅延して
これ亦応答が遅れる等、作動が不安定で微調整が
困難なため、二次側末端の間欠的消費が頻繁な場
合あるいは二次側圧力の精度が要求される場合に
は適応しない重大欠点がある。 For coating equipment that needs to intermittently supply liquid paint under constant pressure, conventionally, for example, a first
As shown in the figure, there is a primary inlet 1 and a secondary outlet 2, as well as a relatively weak spring 3 that is close to the inlet 1.
A valve chamber 5 equipped with a valve body 4 that is closed by a valve body 4 and a pressure regulating chamber 6 are separated by a diaphragm 7 and are fastened together with screws 8. In addition, a spring is provided in the pressure regulating chamber 6 to press the diaphragm 7. 9 and an adjusting screw 10, and the diaphragm 7 and the valve body 4 are connected by a valve rod 11, thereby communicating the inlet 1 with a relatively high pressure paint supply source 12. Adjustment screw 10
By using a pressure reducing valve which maintains the supply of paint to the secondary outlet 2 at a constant low pressure under a properly adjusted condition, or by using the spring 9 and adjustment shown in FIG. Pressure regulating chamber 6 instead of screw 10
A pressure reducing valve is used that supplies pressurized air from the air supply source 13 to the inside.The former, that is, the pressure reducing valve shown in FIG. is also widely used because it is relatively good, but it has the disadvantage that it cannot be remotely controlled when changing or adjusting the secondary side pressure, and the secondary
The pressure reducing valve shown in the figure is suitable for remote control, but because the fluid to be adjusted for pressure is a liquid paint with almost no compressibility, the consumption of the secondary paint causes the valve chamber to
Diaphragm 7 based on the tendency of rapid reduction in internal volume
Prior to the entire operation, only the peripheral portion is deformed, and the accompanying volume expansion of the pressure regulating chamber 6 causes a temporary drop in the pressure within the pressure regulating chamber 6, so the secondary paint is consumed. Although there is a need to open the valve 4 immediately, there is a drawback that the response is slow due to a delay in operation due to a temporary pressure drop in the pressure regulating chamber 6, and conversely, the consumption of secondary paint is reduced. When the pressure regulating chamber 6 is stopped, the volume of the pressure regulating chamber 6 decreases and the pressure within the pressure regulating chamber 6 temporarily increases, contrary to the above.
Although it is necessary to close the valve 4 immediately due to the stoppage of consumption of the secondary side paint, the operation is delayed and the response is delayed, so the operation is unstable and fine adjustment is difficult. It has a serious drawback that it is not suitable for cases where intermittent consumption of the downstream end is frequent or where accuracy of the downstream pressure is required.
本考案は、弁室と調圧室との中間に二枚のダイ
ヤフラムにより仕切る状態の中継室を設け、弁室
あるいは調圧室に急激な圧力変化に伴なつてダイ
ヤフラムの外周寄り部分が変形してもこの変形に
より他側室内容積を直接変化させることなく外気
に連通した中継室において吸収し、これにより乱
調を起すことなく安定した作動のもとに二次側圧
力を僅かな変動幅のもとにほぼ一定に保つことが
できるようにした型式の圧力調整装置を採択し
て、これを塗料供給源から末端における弁部の開
閉回数が著しく多い噴霧ガンに到る塗料供給路に
介設したことを特徴とするものであり、以下添付
図面に例示する態様について詳細に説明する。 The present invention provides a relay chamber partitioned by two diaphragms between the valve chamber and the pressure regulating chamber, so that the outer periphery of the diaphragm deforms when there is a sudden pressure change in the valve chamber or pressure regulating chamber. This deformation allows the secondary side pressure to be absorbed by the relay chamber that communicates with the outside air without directly changing the internal volume of the other side chamber, and this allows the outlet side pressure to be adjusted even within a small range of fluctuation without causing disturbances and under stable operation. We adopted a type of pressure regulating device that can maintain a nearly constant pressure, and installed it in the paint supply path from the paint supply source to the spray gun, where the valve at the end has a significantly large number of opening and closing times. Hereinafter, embodiments illustrated in the accompanying drawings will be described in detail.
第３図のように、圧力調整装置として、一次側
流入口１および二次側流出口２があるほか流入口
１に近くばね３により閉止し易い傾向の弁体４を
設けた弁室５と、調圧室６と、大気への流通孔１
４がある中継室１５とを、中間に中継室１５が位
置する状態のもとに室間がダイヤフラム１６およ
び１７により仕切られるようにねじ８により締め
付け結合するほか、ダイヤフラム１６と弁体４と
を弁杆１１により連結し、かつダイヤフラム１６
と１７とはこれを連動するようにそれぞれの接触
片１８と１９とにより中央部分において対接させ
た構成の圧力調整装置を設け、この圧力調整装置
の流入口１を加圧塗料供給源１２に接続すると共
に、二次側流出口２には末端における弁部の開閉
回数が著しく多い高速間欠噴霧型の噴霧ガン２０
を接続し、使用に当つては流入口１に常時例えば
９Kg／cm2の加圧塗料を塗料供給源１２から供給す
るようにすると共に、調圧室６には例えば１〜７
Kg／cm2の一定の加圧空気を空気供給源１３から導
入することにより、二次側流出口２に接続した噴
霧ガン２０に常時一定圧の加圧塗料を供給するこ
とができるのであつて、噴霧ガン２０の間欠噴射
を一分間当り3000回行ないつつ二次側液圧の変化
を測定すると第４図および第５図のとおりであ
り、噴霧ガン２０の開閉による二次側圧力の変化
は0.1Kg／cm2に止まるばかりでなく、噴霧ガン２
０の閉止に伴ない瞬時に前回の圧力値へ復元し、
しかも空気圧を1.0〜7.0Kg／cm2の諸段階に設定し
て二次側供給圧力を大幅に調節しても噴霧ガン２
０の開閉による圧力の変動は常に0.1Kg／cm2以内
であることが確認できたのである。 As shown in FIG. 3, the pressure regulating device includes a primary inlet 1 and a secondary outlet 2, as well as a valve chamber 5 near the inlet 1 and equipped with a valve body 4 that tends to be easily closed by a spring 3. , a pressure regulation chamber 6, and a communication hole 1 to the atmosphere.
4 is connected to the relay chamber 15 with the relay chamber 15 located in the middle using screws 8 such that the chambers are partitioned by diaphragms 16 and 17. connected by a valve rod 11 and a diaphragm 16
and 17 are interlocked with each other by a pressure regulating device configured such that they face each other at the center by respective contact pieces 18 and 19, and the inlet 1 of this pressure regulating device is connected to the pressurized paint supply source 12. At the same time, a high-speed intermittent spray type spray gun 20 is connected to the secondary outlet 2 and the valve part at the end is opened and closed many times.
When in use, a pressurized paint of, for example, 9 kg/cm 2 is always supplied to the inlet 1 from the paint supply source 12, and the pressure regulating chamber 6 is supplied with, for example, 1 to 7
By introducing a constant pressurized air of Kg/cm 2 from the air supply source 13, it is possible to constantly supply pressurized paint at a constant pressure to the spray gun 20 connected to the secondary outlet 2. Figures 4 and 5 show the changes in the secondary fluid pressure measured while the spray gun 20 performs intermittent injection 3000 times per minute, and the changes in the secondary pressure due to opening and closing of the spray gun 20 are as follows: Not only does it stop at 0.1Kg/ cm2 , but the spray gun 2
0 is closed, it instantly restores the previous pressure value,
Moreover, even if the air pressure is set in various stages from 1.0 to 7.0 Kg/cm 2 and the secondary side supply pressure is greatly adjusted, the spray gun 2
It was confirmed that the pressure fluctuation due to opening and closing of zero was always within 0.1Kg/cm 2 .
なお両ダイヤフラム１６および１７はその中央
部分において固着してもよいのである。 Note that both diaphragms 16 and 17 may be fixed at their central portions.
以上説明したように、本考案によれば、二枚の
ダイヤフラムにより仕切られた中継室を弁室と調
圧室との中間に設けて室内圧力の急激な変動によ
るダイヤフラムの部分的変形があつてもこれを中
継室において吸収して他側への影響を緩和し、圧
力変化を中央部において機械的に正確に伝達する
ようにした圧力調整装置を加圧塗料供給源と高速
間欠噴霧型の噴霧ガンとの中間の塗料供給路に介
設したから、著しく簡単な構造により速い応答の
もとに安定した圧力調整機能を発揮させることが
でき、従来品に比確して復元性に優れているばか
りでなく、高速な間欠的塗料供給に当り二次側圧
力の変動を著しく抑制することができ、従つて転
動しつつ連続的に搬送される飲料用缶体内面への
コーテイングに使用する噴霧塗装装置として好適
である。 As explained above, according to the present invention, a relay chamber partitioned by two diaphragms is provided between the valve chamber and the pressure regulating chamber to prevent partial deformation of the diaphragm due to rapid fluctuations in indoor pressure. This is absorbed in the relay room to alleviate the influence on other sides, and a pressure adjustment device that mechanically accurately transmits pressure changes in the center is connected to a pressurized paint supply source and a high-speed intermittent sprayer. Because it is installed in the paint supply path between the gun and the gun, it has an extremely simple structure that allows for a stable pressure adjustment function with a quick response, and it has superior resilience compared to conventional products. In addition, it is possible to significantly suppress fluctuations in the pressure on the secondary side when supplying paint intermittently at high speed, making it possible to use the spray to coat the inner surface of beverage cans that are continuously conveyed while rolling. Suitable as a coating device.
図面において、第１図および第２図はそれぞれ
従来の塗装装置に装備された圧力調整装置を各別
に示す縦断側面図、第３図は一実施態様における
本考案の塗装装置の一部縦断側面図、また第４図
および第５図はそれぞれ本考案に装備した圧力調
整装置の圧力測定結果を各別に示す線図である。
１……流入口、２……流出口、３……ばね、４
……弁体、５……弁室、６……調圧室、１１……
弁杆、１２……加圧塗料供給源、１４……流通
孔、１５……中継室、１６……ダイヤフラム、１
７……ダイヤフラム、２０……噴霧ガン。
In the drawings, FIGS. 1 and 2 are longitudinal sectional side views showing respective pressure regulating devices installed in a conventional coating apparatus, and FIG. 3 is a partial longitudinal sectional side view of the coating apparatus of the present invention in one embodiment. , and FIGS. 4 and 5 are diagrams showing the pressure measurement results of the pressure regulating device installed in the present invention, respectively. 1... Inlet, 2... Outlet, 3... Spring, 4
... Valve body, 5 ... Valve chamber, 6 ... Pressure regulation chamber, 11 ...
Valve rod, 12... Pressurized paint supply source, 14... Distribution hole, 15... Relay chamber, 16... Diaphragm, 1
7...Diaphragm, 20...Spray gun.
Claims (1)
近くばね３により閉止傾向に弁体４を設けた弁室
５と、加圧空気導入型調圧室６と、大気への流通
孔１４がある中継室１５とを、中間に中継室１５
が位置する状態のまま室間がダイヤフラム１６お
よび１７により仕切られるように結合するほか、
ダイヤフラム１６と弁体４とを弁杆１１により連
結し、かつダイヤフラム１６と１７とはこれを中
央部分において連動するように関連させた構成の
液体圧力調整装置を設けると共に、この圧力調整
装置における流入口１を加圧塗料供給源１２に接
続するほか、流出口２には末端における弁部の開
閉回数が著しく多い噴霧ガン２０を接続したこと
を特徴とする塗装装置。 In addition to an inlet 1 and an outlet 2, there is a valve chamber 5 near the inlet 1 with a valve body 4 that tends to close due to a spring 3, a pressurized air introduction type pressure regulating chamber 6, and a communication hole 14 to the atmosphere. One relay room 15 and one relay room 15 in the middle.
In addition to joining so that the chambers are partitioned by diaphragms 16 and 17 while remaining in the position,
A liquid pressure regulating device is provided in which the diaphragm 16 and the valve body 4 are connected by the valve rod 11, and the diaphragms 16 and 17 are interlocked in the central portion. A coating device characterized in that an inlet 1 is connected to a pressurized paint supply source 12, and an outlet 2 is connected to a spray gun 20 whose end valve part opens and closes extremely many times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12672282U JPS5933521U (en) | 1982-08-20 | 1982-08-20 | painting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12672282U JPS5933521U (en) | 1982-08-20 | 1982-08-20 | painting equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5933521U JPS5933521U (en) | 1984-03-01 |
| JPH0138649Y2 true JPH0138649Y2 (en) | 1989-11-20 |
Family
ID=30288044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12672282U Granted JPS5933521U (en) | 1982-08-20 | 1982-08-20 | painting equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5933521U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2586128Y2 (en) * | 1990-03-10 | 1998-12-02 | 株式会社 ニレコ | Viscous fluid control device |
| WO2013191011A1 (en) * | 2012-06-22 | 2013-12-27 | 株式会社村田製作所 | Liquid delivery device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5395552A (en) * | 1977-01-31 | 1978-08-21 | Matsushita Electric Works Ltd | High speed memory unit |
| JPS53137427A (en) * | 1978-05-17 | 1978-11-30 | Nippon Regulator Kk | Air booster with bias regulating means |
| JPS55149530A (en) * | 1979-05-11 | 1980-11-20 | Hitachi Seiko Ltd | External noise eliminating method in digitizer |
-
1982
- 1982-08-20 JP JP12672282U patent/JPS5933521U/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5395552A (en) * | 1977-01-31 | 1978-08-21 | Matsushita Electric Works Ltd | High speed memory unit |
| JPS53137427A (en) * | 1978-05-17 | 1978-11-30 | Nippon Regulator Kk | Air booster with bias regulating means |
| JPS55149530A (en) * | 1979-05-11 | 1980-11-20 | Hitachi Seiko Ltd | External noise eliminating method in digitizer |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5933521U (en) | 1984-03-01 |
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