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公开(公告)号：JP2004148239A
公开(公告)日：2004-05-27
申请号：JP2002317849
申请日：2002-10-31
Applicant: Anest Iwata Corp , アネスト岩田株式会社
Inventor： OCHII YASUHIRO , MOROHOSHI ATSUSHI
Abstract: PROBLEM TO BE SOLVED: To obtain a spray gun for electrostatic coating which is safe and easy to use by a worker, is excellent in productivity and economy and can contribute to spread of active utilization of a water-base paint eventually leading to solution of environmental problems.
SOLUTION: The external electrification electrostatic coating spray gun has an atomizer disposed at the tip of a spray gun barrel and a high-voltage generator behind the same and is provided with an external electrification electrode by projecting the electrode, separated from the route for the coating material supplied to the atomizer by maintaining electrical insulation therefrom and connected to the high-voltage output part of the high-voltage generator, toward a fore position evading the outer mist flow of the atomizer. The spray gun is provided with a contact terminal connected to the output section of the high-voltage generator within the above barrel at least on ≥1/4 part of the circumference around the atomizer axis. The contact end of the external electrode formed of an insulation material over the entire part is exposed at the front end electrode at one end and exposed at a contact end at the other end is connected to the contact terminal and isfixable in this position. Also, the spray gun is provided with connecting positions of the external electrode circumferentially around the spraying axis. And also, the spray gun is provided with a means which makes the connecting positions of the external electrode rotatable around the axis of spraying of the atomizer.
COPYRIGHT: (C)2004,JPO-
公开(公告)号：JP2006055813A
公开(公告)日：2006-03-02
申请号：JP2004243079
申请日：2004-08-24
Applicant: Anest Iwata Corp , アネスト岩田株式会社
Inventor： MATSUMOTO TAKUYA , OCHII YASUHIRO , TAKECHI MASANORI
Abstract: PROBLEM TO BE SOLVED: To provide a spray gun for electrostatic coating which has small load on workers, is small-sized and lightweight and safely used in the operation and by which resources are saved and environmental pollution is reduced.
SOLUTION: In the spray gun for electrostatic coating having a high voltage generator 5 and treating the side of a coating material as earth potential, a discharge electrode 35 and an earth electrode 36 opposed to the discharge electrode 35 is provided within a compressed air passage 9 for jetting, compressed air passed through the electrodes is ionized and jetted from an air cap 20 as jetted air and a charge electrode 6 is arranged in a zone not reaching a spray zone in the outside of a central air port 21 of the air cap 20 arranged in the outside of the coating material spray port 26.
COPYRIGHT: (C)2006,JPO&NCIPIAbstract translation: 要解决的问题：为了提供对工作人员负载小的静电涂装用喷枪，体积小，重量轻，安全使用，节省资源，减少环境污染。 解决方案：在具有高电压发生器5的静电涂布用喷枪中，将涂层材料的一侧作为地电位处理，与放电电极35相对的放电电极35和接地电极36设置在压缩 用于喷射的空气通道9，通过电极的压缩空气被离子化并作为喷射空气从空气帽20喷射，并且充电电极6布置在未到达喷雾区域的中心空气端口21的外部的喷射区域 布置在涂料喷雾口26外侧的气帽20.版权所有（C）2006，JPO＆NCIPI
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公开(公告)号：JP2006051427A
公开(公告)日：2006-02-23
申请号：JP2004234040
申请日：2004-08-11
Applicant: Anest Iwata Corp , アネスト岩田株式会社
Inventor： MATSUMOTO TAKUYA , OCHII YASUHIRO , TAKECHI MASANORI
CPC classification number: B05B5/0533 , B05B5/03 , B05B7/066 , B05B7/0815
Abstract: PROBLEM TO BE SOLVED: To provided an electrostatic coating spray gun excellent in operability and employing low voltage system for improving safety and for more miniaturization, the spray gun having been demanded since there are many problems in which an electrically conductive coating material causes a problem when electrified directly, consequently an external electrode system of indirect electrification is generally used however such system brings about a practical problem in handleability and safety when miniaturized.
SOLUTION: The electrostatic coating spray gun is constituted in such a way that an atomizer is arranged at the distal end of the spray gun to atomize the coating material discharged from a coating material nozzle arranged in the central part of the atomizer and the atomized coating material is applied to the objected to be coated while applying high-voltage static electricity to particles of the atomized coating material, wherein the potential of coating material side of the spray gun is set to be ground potential, a charging electrode as an external electrode is arranged on the outside surface or inside surface of an air cap and a compressed air flow passage is formed between a coating material jetting spout of the ground potential and the charging electrode. A discharge from the electrode to the coating material side (grounded side) is restrained in charging by compressed air, so that required potential is maintained, ionized discharging is efficiently performed and particles of the coating material are electrified. As a result, since a potential drop is prevented, the voltage necessary for electrifying particles of the coating material can be lowered.
COPYRIGHT: (C)2006,JPO&NCIPIAbstract translation: 要解决的问题：为了提供优异的可操作性和采用低压系统以提高安全性和更小型化的静电喷涂枪，由于存在导电涂层材料引起的许多问题，所以需要喷枪 直接通电的问题，因此通常使用间接带电的外部电极系统，但是当小型化时，这种系统带来可操作性和安全性的实际问题。 解决方案：静电喷涂喷枪的构造方式是使雾化器布置在喷枪的远端，以雾化从布置在雾化器的中心部分的涂料喷嘴排出的涂料， 将雾化的涂料施加到被涂覆的物体上，同时对雾化涂料的颗粒施加高压静电，其中喷枪的涂料侧的电位被设定为地电位，充电电极作为外部 电极布置在空气帽的外表面或内表面上，并且在地电位的喷涂喷嘴和充电电极之间形成压缩空气流动通道。 通过压缩空气对从电极到涂料侧（接地侧）的放电进行限制，从而保持需要的电位，有效地进行离子化放电，并使涂料的粒子通电。 结果，由于防止了电位降，可以降低涂覆材料颗粒带电所需的电压。 版权所有（C）2006，JPO＆NCIPI
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公开(公告)号：JP2004148240A
公开(公告)日：2004-05-27
申请号：JP2002317850
申请日：2002-10-31
Applicant: Anest Iwata Corp , アネスト岩田株式会社
Inventor： MATSUMOTO TAKUYA , OCHII YASUHIRO
Abstract: PROBLEM TO BE SOLVED: To improve safety and handleability by constituting an external electrode which maintains a high voltage by adequately limiting the electric current to a paint to be supplied in such a manner that the electrode is made attachable and detachable by maintaining the insulation from an atomizer which is a ground potential side in the case of electrostatic coating of the conductive paint.
SOLUTION: On the outer side of a spray gun having the atomizer at its tip, an external electrode body which consists of an insulation material over the entire part and has the electrode projected at its tip is freely attachably and detachably provided on a high-voltage output part of the gun body so as to be made easily exchangeable. The attaching and detaching section is set so that a distance at which a juncture with a high-voltage output end through a current-limiting high resistance reaches an outside surface exposure section can be sufficiently taken. The above section can be made to maintain safety and can be made shorter by providing the same with a turning over section. Further, the electrode body itself is simplified and is made exchangeable with a single action of exchange and in addition, the electrode body is configured of a flexible and elastic material for the purpose of failure prevention.
COPYRIGHT: (C)2004,JPO
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