JPH0631212A - Coating material spraying apparatus - Google Patents
Coating material spraying apparatusInfo
- Publication number
- JPH0631212A JPH0631212A JP10185692A JP10185692A JPH0631212A JP H0631212 A JPH0631212 A JP H0631212A JP 10185692 A JP10185692 A JP 10185692A JP 10185692 A JP10185692 A JP 10185692A JP H0631212 A JPH0631212 A JP H0631212A
- Authority
- JP
- Japan
- Prior art keywords
- coating material
- motor
- pump
- spraying
- pressure
- 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.)
- Pending
Links
Landscapes
- Nozzles (AREA)
- Spray Control Apparatus (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、リシン、タイル等の高
粒度の建築用塗材の吹付装置に関し、特に、吹き初めの
塗材噴出圧を抑えて吹き付けにむらができるのを防止す
るようにした塗材吹付装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spraying device for high-granular coating materials for construction such as lysine and tiles, and more particularly, to suppress the spraying pressure of coating material at the beginning of spraying to prevent uneven spraying. The coating material spraying device.
【０００２】[0002]
【従来の技術】この種の塗材吹付装置の一例を、本発明
の一実施例を示す図１を参照して説明する。符号１は内
部に塗材通路２を形成したガンであつて、その先端に塗
材噴出用の塗材ノズル３が斜め姿勢で形成され、その塗
材ノズル３内に加圧エア噴出用のエアノズル５が背面側
を貫通して取り付けられ、エアホース６を介してエアコ
ンプレツサ７に接続されている。2. Description of the Related Art An example of a coating material spraying device of this type will be described with reference to FIG. 1 showing an embodiment of the present invention. Reference numeral 1 denotes a gun having a coating material passage 2 formed therein, and a coating material nozzle 3 for spraying coating material is formed in an oblique posture at the tip of the gun, and an air nozzle for jetting pressurized air into the coating material nozzle 3. 5 is attached penetrating the back side and is connected to an air conditioner press 7 via an air hose 6.
【０００３】ガン１の塗料通路２の後端には、上記した
エアコンプレツサ７からの加圧エアの一部をパイロツト
エアとして開閉される開閉弁９が接続され、その開閉弁
９が、モータ１０によつて駆動されるモーノポンプ１１
の吐出口に塗材ホース１２を介して接続されている。モ
ータ１０は、上記のエアホース６に介設したエアフロー
スイツチ１３と接続され、エアフロースイツチ１３のＯ
Ｎ・ＯＦＦと連動して起動と停止が行われるようになつ
ている。At the rear end of the paint passage 2 of the gun 1 is connected an on-off valve 9 which is opened and closed by using a part of the pressurized air from the air conditioner press 7 as pilot air. Mono pump 11 driven by 10
Is connected to the discharge port via the coating material hose 12. The motor 10 is connected to the air flow switch 13 provided on the air hose 6, and the O of the air flow switch 13 is turned on.
Starting and stopping are performed in conjunction with N / OFF.
【０００４】すなわち、エア用の開閉弁１５を開くと、
エアノズル５に加圧エアが供給され、それに伴い塗材用
の開閉弁９が開かれるとともに、エアフロースイツチ１
３を介してモータ１０が起動される。それにより、モー
ノポンプ１１から塗材が吐出されて塗材ノズル３に供給
され、塗材が上記の加圧エアにより粒状となつて噴出さ
れて被塗物に吹き付けられる。That is, when the on-off valve 15 for air is opened,
Pressurized air is supplied to the air nozzle 5, the opening / closing valve 9 for the coating material is opened accordingly, and the air flow switch 1
The motor 10 is started via 3. As a result, the coating material is discharged from the mono pump 11 and supplied to the coating material nozzle 3, and the coating material is ejected in the form of particles by the pressurized air and sprayed onto the object to be coated.
【０００５】そして、エア用の開閉弁１５を閉じると加
圧エアの供給が停止され、それに伴い塗材用の開閉弁９
が閉じられるとともにモータ１０が停止されて、吹き付
けが停止する。When the on-off valve 15 for air is closed, the supply of the pressurized air is stopped, and the on-off valve 9 for coating material is accordingly stopped.
Is closed and the motor 10 is stopped, and the spraying is stopped.
【０００６】[0006]
【発明が解決しようとする課題】ところでこのような塗
材吹付装置の塗材圧力の状態を実測値から見ると、吹き
付け時において、モータ１０が駆動されてモーノポンプ
１１から塗材が吐出されているときには、図３（ａ）に
示すように、加圧側であるポンプ側の圧力が２５Kg／cm
2 であると、噴出側であるガン側の圧力は、塗材ホース
１２の圧力損失で減圧されて５Kg／cm2 である。Looking at the state of the coating material pressure of such a coating material spraying device from the measured value, the motor 10 is driven and the coating material is discharged from the mono pump 11 at the time of spraying. At times, as shown in Fig. 3 (a), the pressure on the pump side, which is the pressurizing side, is 25 kg / cm.
When it is 2 , the pressure on the gun side, which is the ejection side, is 5 kg / cm 2 after being reduced by the pressure loss of the coating material hose 12.
【０００７】ここで、エア用の開閉弁１５を閉じると、
上記したように塗材用の開閉弁９が閉じるとともにモー
タ１０が停止して塗材の噴出が停止するのであるが、モ
ータ１０の慣性力や、エアフロースイツチ１３の作動の
タイムラグにより、塗材用の開閉弁９が閉じてからもし
ばらくモーノポンプ１１が回転するために、同図（ｂ）
に示すように、ポンプ側の圧力が２９Kg／cm2 と高くな
る。そして、モーノポンプ１１が停止から数分が経過す
ると、塗材ホース１２内の圧力が均一化されて、同図
（ｃ）に示すように、特に、ガン側の圧力が１５Kg／cm
2 と高圧に蓄圧された状態となる。Here, when the on-off valve 15 for air is closed,
As described above, the opening / closing valve 9 for the coating material is closed and the motor 10 is stopped to stop the jetting of the coating material. However, due to the inertia force of the motor 10 and the time lag of the operation of the air flow switch 13, the coating material can be coated. Since the mohno pump 11 rotates for a while even after the on-off valve 9 of FIG.
As shown in, the pressure on the pump side becomes as high as 29 Kg / cm 2 . When a few minutes have passed since the mohno pump 11 was stopped, the pressure in the coating material hose 12 is made uniform, and as shown in FIG. 7C, the pressure on the gun side is 15 kg / cm.
It becomes the state that the pressure was accumulated to 2 and high pressure.
【０００８】したがつて、次の吹き付けを行うために塗
材用の開閉弁９が開かれたときに、蓄圧された塗材が勢
い良く噴出され、その後は通常の塗材圧に下がるために
吹き付けにむらができ、それを補修するための吹き付け
等が必要となつて作業能率が悪い欠点があつた。Therefore, when the opening / closing valve 9 for the coating material is opened to perform the next spraying, the accumulated coating material is vigorously ejected, and thereafter the normal coating material pressure is lowered. There was a drawback that the spraying was uneven and the spraying to repair it was inefficient, resulting in poor work efficiency.
【０００９】なお、自動機のように、加圧エアは吹き放
しで、塗材用の開閉弁９の開閉と、モータ１０のＯＮ・
ＯＦＦとをスイツチで切り換えて、塗材の供給と停止の
みを制御する形式のものでも、モータ１０の慣性力で上
記と同様の不具合を呈していた。As in an automatic machine, the pressurized air is blown off to open / close the open / close valve 9 for coating material and turn on / off the motor 10.
Even in the type in which only the supply and the stop of the coating material are controlled by switching OFF and OFF with a switch, the same problem as described above was exhibited by the inertial force of the motor 10.
【００１０】[0010]
【課題を解決するための手段】本発明の塗材吹付装置
は、叙上の点に鑑み完成されたものであつて、モータ
を、塗材ポンプを正逆駆動させる可逆モータとするとと
もに、その可逆モータが正転時から停止する際に一定時
間逆転駆動してから停止させるモータ駆動制御装置を設
けた構成とした。The coating material spraying device of the present invention has been completed in view of the above points, and the motor is a reversible motor for driving the coating material pump in forward and reverse directions. When the reversible motor is stopped from the forward rotation, it is reversely driven for a certain period of time, and the motor drive controller is provided to stop the motor.
【００１１】[0011]
【作用】本発明は上記構成になり、吹き付けの停止に際
して可逆モータの正転が停止されると、モータ駆動制御
装置の作動により、可逆モータが一定時間逆転して塗材
ポンプが逆回転されてから改めて停止される。According to the present invention having the above-mentioned structure, when the forward rotation of the reversible motor is stopped when the spraying is stopped, the reversible motor is reversely rotated for a certain period of time by the operation of the motor drive control device to reversely rotate the coating material pump. It will be stopped again.
【００１２】この塗材ポンプの逆回転により、吹き付け
の停止の際にポンプが過剰に正回転することによつて一
旦高圧となつたポンプ側の圧力が下げられ、ポンプの再
停止後に塗材ホース内の圧力が均一化された場合にも、
ガン側の圧力が通常の吹き付け作動時と同程度に抑えら
れる。By the reverse rotation of the coating material pump, the pressure on the pump side, which once became high due to excessive forward rotation of the pump when the spraying is stopped, is lowered, and the coating material hose is stopped after the pump is stopped again. Even if the pressure inside is equalized,
The pressure on the gun side is suppressed to the same level as during normal spraying.
【００１３】したがつて、次に吹き付けを行う場合に、
塗材用の開閉弁を開いた直後から略一定の噴出圧で塗材
が噴出される。Therefore, when spraying next,
Immediately after opening the on-off valve for coating material, the coating material is ejected at a substantially constant ejection pressure.
【００１４】[0014]
【実施例】以下、本発明の一実施例を図１及び図２に基
づいて説明する。本実施例では、モーノポンプ１１を駆
動するモータ１０に、可逆モータが使用されているとと
もに、この可逆モータ１０に、既述したエアフロースイ
ツチ１３からの信号に基づいて可逆モータ１０の駆動を
制御するモータ駆動制御装置２０が接続されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. In the present embodiment, a reversible motor is used as the motor 10 that drives the mono pump 11, and the reversible motor 10 controls the drive of the reversible motor 10 based on the signal from the air flow switch 13 described above. The drive control device 20 is connected.
【００１５】このモータ駆動制御装置２０は、エアフロ
ースイツチ１３がＯＮすると可逆モータ１０を正転駆動
し、一方、エアフロースイツチ１３がＯＦＦになると、
可逆モータ１０を予め定めた一定時間逆転駆動したのち
改めて停止させるようになつている。The motor drive control device 20 drives the reversible motor 10 in the forward direction when the air flow switch 13 is turned on, while the air flow switch 13 is turned off when the air flow switch 13 is turned off.
The reversible motor 10 is reversely driven for a predetermined time and then stopped again.
【００１６】本実施例はこのような構造になり、エア用
の開閉弁１５を開くと、加圧エアが供給されまた塗材用
の開閉弁９が開かれるとともに、エアフロースイツチ１
３がＯＮすることによりモータ駆動制御装置２０を介し
て可逆モータ１０が正転駆動され、モーノポンプ１１か
ら塗材が吐出されて吹き付けが行われることは、従来技
術の項で説明したと同様である。This embodiment has such a structure. When the opening / closing valve 15 for air is opened, pressurized air is supplied and the opening / closing valve 9 for coating material is opened, and the air flow switch 1 is also provided.
3 is turned on, the reversible motor 10 is driven in the normal direction via the motor drive control device 20, and the coating material is discharged from the mono pump 11 to spray the same, as described in the section of the related art. .
【００１７】吹き付けの停止に際してエア用の開閉弁１
５を閉じると、加圧エアの供給が停止されるのと、塗材
用の開閉弁９が閉じられるのは同様であるが、エアフロ
ースイツチ１３がＯＦＦとなるのに伴い、モータ駆動制
御装置２０の作動により、可逆モータ１０が一定時間逆
転駆動され、モーノポーンプ１１が逆回転されてから改
めて停止される。On-off valve 1 for air when stopping spraying
5 is closed, the supply of the pressurized air is stopped and the on-off valve 9 for coating material is closed. However, as the air flow switch 13 is turned off, the motor drive controller 20 is closed. By the operation of, the reversible motor 10 is reversely driven for a certain period of time, and the mono pump 11 is reversely rotated and then stopped again.
【００１８】すなわち、図２（ａ）に示す吹き付け状態
から、その停止時に可逆モータ１０すなわちモーノポン
プ１１が過剰に正回転することにより、同図（ｂ）に示
すように、ポンプ側の圧力が２９Kg／cm2 と一旦高くな
つたところ、可逆モータ１０が一定時間逆転駆動される
ために、モーノポンプ１１が逆回転して、同図（ｃ）に
示すように、ポンプ側の圧力が５Kg／cm2 まで下げられ
る。そのため、その後数分が経過して塗材ホース１２内
の圧力が均一化された場合にも、同図（ｄ）に示すよう
に、ガン側の圧力が９Kg／cm2 と通常の吹き付け作動時
と同程度に抑えられる。That is, when the reversible motor 10, that is, the mono pump 11 is excessively rotated in the forward direction from the spraying state shown in FIG. 2 (a), the pressure on the pump side is 29 kg as shown in FIG. 2 (b). / Cm 2 once, the reversible motor 10 is reversely driven for a certain period of time, so the mono pump 11 rotates in the reverse direction, and the pressure on the pump side is 5 kg / cm 2 as shown in FIG. Can be lowered. Therefore, even when the pressure in the coating material hose 12 is made uniform several minutes after that, the pressure on the gun side is 9 kg / cm 2 during normal spraying operation, as shown in FIG. Can be suppressed to the same level as.
【００１９】したがつて、次に吹き付けを行う場合に、
塗材用の開閉弁９が開かれた直後から略一定の噴出圧で
塗材が噴出される。Therefore, when spraying next,
Immediately after the opening / closing valve 9 for the coating material is opened, the coating material is ejected at a substantially constant ejection pressure.
【００２０】なお、可逆モータ１０を逆転駆動する時間
は、例えば、モーノポンプ１１の吐出口付近に圧力セン
サを設けて、その蓄圧値に対応して制御するようにして
もよい。The time for which the reversible motor 10 is driven in reverse may be controlled, for example, by providing a pressure sensor near the discharge port of the mono pump 11 and corresponding to the accumulated pressure value.
【００２１】また、本発明は、加圧エアは吹き放しで、
塗材用の開閉弁９の開閉と、モータ１０のＯＮ・ＯＦＦ
とをスイツチで切り換えて、塗材の供給と停止のみを制
御する形式のものにも同様に適用できる。さらに、上記
実施例に示したモーノポンプに限らず、チユービングポ
ンプ等の他の回転容積型の塗材ポンプを使用した塗材吹
付装置全般について広く適用することができる。In the present invention, the pressurized air is blown off,
Opening and closing the on-off valve 9 for coating material and turning the motor 10 on and off
It can be similarly applied to a type in which and are switched by a switch to control only the supply and stop of the coating material. Further, the present invention is not limited to the mohno pump shown in the above-described embodiment, but can be widely applied to all coating material spraying devices using other rotary displacement type coating material pumps such as a tubing pump.
【００２２】[0022]
【発明の効果】以上詳細に説明したように、本発明によ
れば、吹き付けを停止した際に塗材ポンプが一定時間逆
転されることにより蓄圧分が取り除かれて、ガン側の圧
力が通常の吹き付け作動時と同程度に抑えられるから、
次に吹き付けを開始したときに初めから略一定の噴出圧
で塗材を噴出することができて、むらのない吹き付けを
行うことができる。それにより、補修のための吹き付け
が不要にできて作業能率を大幅に向上させることができ
る効果がある。As described in detail above, according to the present invention, when the spraying is stopped, the coating material pump is reversely rotated for a certain period of time to remove the accumulated pressure so that the pressure on the gun side becomes normal. Since it can be suppressed to the same level as when spraying,
Next, when the spraying is started, the coating material can be sprayed from the beginning with a substantially constant spraying pressure, and uniform spraying can be performed. As a result, there is an effect that spraying for repair can be made unnecessary and work efficiency can be greatly improved.
【図１】本発明の一実施例の構成図である。FIG. 1 is a configuration diagram of an embodiment of the present invention.
【図２】本実施例に係る塗材圧力の状態の説明図であ
る。FIG. 2 is an explanatory diagram of a state of coating material pressure according to the present embodiment.
【図３】従来例に係る塗材圧力の状態の説明図である。FIG. 3 is an explanatory diagram of a state of coating material pressure according to a conventional example.
１：ガン ３：塗材ノズル ５：エアノズル ６：エア
ホース ７：エアコンプレツサ ９：（塗材用）開閉弁
１０：可逆モータ １１：モーノポンプ（塗材ポン
プ） １２：塗材ホース １３：エアフロースイツチ
１５：（エア用）開閉弁 ２０：モータ駆動制御装置1: Gun 3: Coating material nozzle 5: Air nozzle 6: Air hose 7: Air conditioner press 9: (Coating material) opening / closing valve 10: Reversible motor 11: Mono pump (coating material pump) 12: Coating material hose 13: Air flow switch
15: Open / close valve (for air) 20: Motor drive control device
Claims (1)
該塗材ノズル内に加圧エア噴出用のエアノズルを臨ませ
たガンを、開閉弁を介して、モーノポンプ、チユービン
グポンプ等のモータで駆動される回転容積型の塗材ポン
プの吐出口に塗材ホースにより接続し、前記エアノズル
に加圧エアを供給するとともに、前記開閉弁を開きかつ
前記塗材ポンプを駆動することにより塗材を前記塗材ノ
ズルから粒状にして噴出して被塗物に吹き付け、前記開
閉弁を閉じかつ前記塗材ポンプを停止させることにより
前記吹き付けを停止するようにした塗材吹付装置におい
て、 前記モータを、前記塗材ポンプを正逆駆動させる可逆モ
ータとするとともに、該可逆モータが正転時から停止す
る際に一定時間逆転駆動してから停止させるモータ駆動
制御装置を設けたことを特徴とする塗材吹付装置。1. A gun having a coating material nozzle for jetting coating material at its tip and an air nozzle for jetting pressurized air facing the inside of the coating material nozzle, a mohno pump, a chubbing pump, etc. through an opening / closing valve. By connecting a discharge hose of a rotary displacement type coating material pump driven by the motor by a coating material hose, supplying pressurized air to the air nozzle, opening the on-off valve and driving the coating material pump. In a coating material spraying device, which sprays the coating material in a granular form from the coating material nozzle and sprays it onto the object to be coated, and stops the spraying by closing the on-off valve and stopping the coating material pump, The motor is a reversible motor that drives the coating material pump in forward and reverse directions, and a motor drive control device that reversely drives the motor for a certain period of time and then stops when the reversible motor stops from forward rotation. Coating material spray apparatus characterized by a.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10185692A JPH0631212A (en) | 1992-03-27 | 1992-03-27 | Coating material spraying apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10185692A JPH0631212A (en) | 1992-03-27 | 1992-03-27 | Coating material spraying apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0631212A true JPH0631212A (en) | 1994-02-08 |
Family
ID=14311672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10185692A Pending JPH0631212A (en) | 1992-03-27 | 1992-03-27 | Coating material spraying apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0631212A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003024834A (en) * | 2001-07-16 | 2003-01-28 | Asahi Sunac Corp | Electrostatic coating apparatus |
| US7292837B2 (en) | 2001-03-08 | 2007-11-06 | Murata Manufacturing Co., Ltd. | Mixer and converter using same |
| JP2013201934A (en) * | 2012-03-27 | 2013-10-07 | Yamabiko Corp | Chemical liquid-mixing and spraying apparatus |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5946160A (en) * | 1982-09-10 | 1984-03-15 | Iwata Tosouki Kogyo Kk | Apparatus for preventing spitting of sprayer |
-
1992
- 1992-03-27 JP JP10185692A patent/JPH0631212A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5946160A (en) * | 1982-09-10 | 1984-03-15 | Iwata Tosouki Kogyo Kk | Apparatus for preventing spitting of sprayer |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7292837B2 (en) | 2001-03-08 | 2007-11-06 | Murata Manufacturing Co., Ltd. | Mixer and converter using same |
| JP2003024834A (en) * | 2001-07-16 | 2003-01-28 | Asahi Sunac Corp | Electrostatic coating apparatus |
| JP4623878B2 (en) * | 2001-07-16 | 2011-02-02 | 旭サナック株式会社 | Electrostatic coating equipment |
| JP2013201934A (en) * | 2012-03-27 | 2013-10-07 | Yamabiko Corp | Chemical liquid-mixing and spraying apparatus |
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