• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    This invention relates to an electrostatic spray gun. The purpose of the invention is to provide an opportunity to improve the charging of the coloring matter. For this, the gun is provided with an electrode system integrated into the rotating socket to increase the charge. The rotating bell 21 is made of an insulating 21 material, and the electrode system is made up of one or more annular electrodes 40, which are in turn turned relative to each other, mounted on the inner side surface 39 of the socket 21 and offset relative to the spray edge. The electrode system can be made in the form of wire electrodes built in the socket closely aligned to each other, passing in the direction of the generator, one ends of which are in contact with the varnish in the distribution chamber made in the rotating socket, and the other ends are placed on the inner side surface of the socket near spray edge. The electrode system, which is integrated into the rotating socket, reduces resistance, made of a semiconductor material. 3 z.p, f-ly. Zil.h ^^ 25NЛ / 26g00! SOOch > & SA) H ^ ^ ^ ^ d.2 W
    公开号:SU1708146A3
    申请号:SU874203670
    申请日:1987-11-17
    公开日:1992-01-23
    发明作者:Бенедек Дьердь
    申请人:Benedek Gyoergy；
    IPC主号:
    专利说明:

    This invention relates to an electrostatic spray gun.
    The purpose of the invention is to provide an opportunity to improve the charging of the coloring matter.
    Fig. 1 shows a spray gun for varnish, a longitudinal section; figure 2 - the bell cut; on fig.Z - the same, option.
    The gun contains an insulating body 1 with channels 2 and 3, respectively, for varnish and air, a prefix 4 of insulating material, which is fixed to the body 1 by means of a removable fastening ring 5. In channel 2 for l.a, a needle valve 6 with a plastic rod is placed .
    The tapering orifice of the nozzle 7 serves as a valve seat for the tip of the needle valve 6.
    A reservoir 8 is provided for supplying lacquer to which a short plastic tube 11 is connected through a hose 9 and a connecting pipe 10. Nenna with pipe 12 communicated with the sock lacquer. A metal handle 13 provides a nozzle 14 for supplying compressed air to the handle 13, in which an air valve 15 is installed, connected by a rod 16 to a pressure lever 17. Air channel 3 is connected through a conical control valve 18 and channel 19 with an air valve 15. Control valve 18 is fixed on the elongated part of the adjusting screw 20.
    The prefix 4 of insulating material is provided with a rotating socket 21 mounted on a shaft 22 having a drive of rotation 23 of the socket. There is an annular distribution chamber 24 on the back of the rotating socket, and slots 25 are made on the inner surface. The socket itself has an annular edge 26. In the attachment there is a hole 27, which forms a continuation of channel 2, and a nipple 28, which bores hole 27 with an annular distribution chamber 24. In channel 2 for lacquer, an electrode 29 is placed, connected through a high-voltage cable 30 to a generator 31.
    The size of the needle valve 6, which is valuable in the lacquer channel 2, is connected to the stem 32, which passes through the gland 33 and the seal 34 and is connected to the pressure lever through the disc spring 35. The stem is spring-loaded spring 36.
    Instead of a prefix, a spray head 37 can be used. A duct 2 is made in the attachment to supply air to the actuator 23. The gun is equipped with an electrode system built into the rotating socket 21 to increase the charge.
    Fig. 2 shows an example when the rotating bell 21 is made of an insulating material, and the electrode system is made up of one or more ring 0 electrodes 40 fixed on the inner side surface 39 of the bell and offset relative to the spray edge 26. friend
    FIG. 3 shows another possible embodiment of a spray nozzle for a spray gun. According to this example, the socket 21 is made of an insulating material, and the electrode system is made up of wire electrodes 41 which are closely spaced to each other and pass aperture in the direction of the generator, one ends of which come into contact with the varnish in the rotating socket 17. the distribution chamber 33, and the other ends are placed on the inner lateral surface 40 of the socket near the spray edge.
    A built-in electrode system in a rotating bell that reduces the resistance is made of a semiconductor material.
    The electrostatic spray gun operates as follows.
    The compressed air required for the device to operate when 5 is applied to the push lever 17 through the nozzle 14 into the handle 13, then into the channel 3 located in the insulating housing 1 through the valve 15, the channel 19 and the adjusting valve 18. Then the air enters the channel 38 and enters into the actuator 23 of the rotating socket 21, which, on the basis of a method well known in the art, converts the energy of compressed air into a rotary spacer and, using the shaft 22, brings the socket 21 into 5 rotation.
    During the pressing of the pressure lever 17, the rod 32 with the help of a cup spring 35 acts on the spring 36 and removes the needle valve 6 from the nozzle 7, ensuring that the varnish passes forward.
    When the needle valve 6 is opened, the lacquer enters the opening 27 made in the body of the attachment 4 and forms the continuation of the channel 2 and passes through the outlet nozzle 5 28 into the annular distribution chamber 24 and then through the slots 25 to the annular edge 26, from which the varnish is sprayed.
    Electrostatic charging of the varnish is provided by the connection of the electrode 29 through
    high voltage cable 30 with generator 31.
    Figure 2 shows an example of the embodiment of the socket according to the invention, when electrodes 40, between which there is no metallic contact, are located on the inner side surface 39 of the socket. In this case, during operation, their contact with the hand or with the object being processed is excluded, reduces the electrical resistance of the lacquer film, which is located in the area between the annular distribution chamber 24 and the spraying annular edge 26, the passage through the slots 25 and along the inner surface 39,
    In the exemplary embodiment according to FIG. 3 closely spaced metal wire electrodes 41 reduce the resistance of the lacquer film in the area between the annular distribution chamber 5/1 body chamber 24 and the spray ring edge 26. The arrangement of the electrodes in the socket 21 also excludes their contact with both the hand and the workpiece, In addition, their individual capacitance is so small that it is insufficient under the conditions of a given operating voltage to accumulate the minimum charge necessary to produce a flammable spark.
    Thus, the invention combines mainly two spray systems using an attachment. There is a possibility of using a rotating socket on the already existing electropneumatic devices.
    An attachment consisting of a rotating socket and its drive can be secured with the same fastening ring 5, which originally served to lock the spray head 37.
    权利要求:
    Claims (4)
    [1]
    Claim iv An electrostatic paint spray gun with an insulating body, made with paint and air ducts, a nozzle fixed to the body and supplying paint, and a needle valve with a plastic rod in the paint canal, which passes through the insulating body, 3 of which an electrode in contact with the lacquer flow, connected by a cable with a high voltage source, is placed on the casing by means of a removable fastening ring an insulating material attachment fitted with schayuschims bell and drive, characterized in that. In order to provide an opportunity to improve the charging of the coloring matter, the gun is equipped with an electrode system integrated into the rotating socket to increase the charge.
    [2]
    2. The gun according to claim 1, characterized in that the rotating socket is made of an insulating material, and the electrode system is designed as mounted on the inner side surface of the socket and displaced relative to the spray edge of one or more ring electrodes, which are in turn displaced relative to each other .
    [3]
    3. The gun according to claim 1, wherein the rotating socket is made of an insulating material, and the electrode system is designed as wire electrodes embedded in the socket and closely spaced to each other. in the direction of the generator, one ends of which are in contact with the varnish with the distribution chamber in the rotating socket, and the other ends are placed on the inner side surface of the socket near the spray edge.
    [4]
    4. The gun according to claims 1 to 3, which is the fact that the electrode system, which is integrated in the rotating socket, reduces the resistance, is made of a semiconductor material.
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    类似技术:
    公开号 | 公开日 | 专利标题
    AU643192B2|1993-11-11|Electrostatic rotary atomizing liquid spray coating apparatus
    US4241880A|1980-12-30|Electrostatic spray gun
    US3583632A|1971-06-08|Electrostatic spray coating apparatus
    US4598871A|1986-07-08|Multiple process electrostatic spray gun having integral power supply
    US4852810A|1989-08-01|Apparatus for electrostatic coating of objects
    US5409162A|1995-04-25|Induction spray charging apparatus
    US4478370A|1984-10-23|Air atomizing nozzle assembly
    US4380320A|1983-04-19|Electrostatic powder spray gun nozzle
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    US7784718B2|2010-08-31|Electrostatic paint sprayer
    US6685106B1|2004-02-03|Paint spraying device
    US3837573A|1974-09-24|Apparatus for electrified spraying
    SU1708146A3|1992-01-23|Electrostatic varnish spraying gun
    EP2903748B1|2017-11-08|Spray tip assembly for electrostatic spray gun
    US3425625A|1969-02-04|Electrostatic spray device
    US4235381A|1980-11-25|Devices for covering objects with electrostatic dust
    EP1129784B1|2003-12-17|Electrostatic painting machine selectively used in two ways and a method for the same
    GB2136319A|1984-09-19|Spraying equipment
    US6672521B2|2004-01-06|High-speed rotation atomizer for application of powder paint
    US3591080A|1971-07-06|Electrostatic spray gun
    EP0243043B1|1991-06-26|Electrostatic rotary atomizing liquid spray coating apparatus
    JPH0673642B2|1994-09-21|Spray coating device for conductive coating liquid
    SU1708145A3|1992-01-23|Apparatus for electrostatic spraying of varnish
    SU1607967A1|1990-11-23|Electrostatic sprayer
    同族专利:
    公开号 | 公开日
    HUT47048A|1989-01-30|
    GB2197600A|1988-05-25|
    CH673412A5|1990-03-15|
    DD262817A5|1988-12-14|
    GB2197600B|1990-11-07|
    DE3731530A1|1988-05-19|
    GB8726548D0|1987-12-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2644903C2|2012-10-01|2018-02-14|Грако Миннесота Инк.|Spray tip assembly for electrostatic spray gun|
    DE10324074B4|2003-05-27|2006-01-26|Dürr Systems GmbH|Bell plate for a rotary atomizer|
    DE102004017891B3|2004-04-13|2005-11-10|Daimlerchrysler Ag|Bell plate for rotating paint atomizer for motor vehicle paint has distribution gap and paint directing means to prevent paint deposits|
    FR2915114B1|2007-04-23|2010-09-10|Sames Technologies|SPRAYING DEVICE, PROJECTION DEVICE COMPRISING SUCH AN ORGAN, AND PROJECTION INSTALLATION COMPRISING SUCH A DEVICE|
    DE102013212039A1|2013-06-25|2015-01-08|Volkswagen Aktiengesellschaft|applicator|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    HU864754A|HUT47048A|1986-11-18|1986-11-18|Multiple-purpose electrostatic paint sprayer|
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