JP2005349348A - Charging apparatus for spraying apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a charging apparatus for a spraying apparatus capable of carrying out electrostatic spraying by attaching it to an already existing spraying apparatus but not an exclusive electrostatic spraying apparatus. <P>SOLUTION: The charging apparatus for a spraying apparatus comprises a charging band 7 attached to a spraying nozzle 3 of a spraying apparatus 1 in a detachable manner and giving electrostatic charge to a spray agent 6 to be sprayed by the spraying nozzle 3, a transformer 9 for generating high voltage, and a controller 11 provided with a high-voltage supply part 10 for supplying a high voltage generated by the transformer 9 to the charging band 7. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a charging device for a spraying device that charges and sprays a spray agent such as an agricultural chemical, and in particular, can perform electrostatic spraying by attaching to an existing spraying device that is not a dedicated electrostatic spraying device. The present invention relates to a charging device for a spreader.

  Generally, when spraying a spray agent such as an agricultural chemical on an open field or a house, various spraying machines are used. The spray sprayed from the nozzle of the sprayer depends on the initial speed and the direction of spraying, so it may be dispersed in the atmosphere or soil without adhering to the crop or other objects. Not only was the consumption of the agent excessive, but the amount of application was uneven, making it very difficult to attach an appropriate amount of the agent to the back of the leaves and bushes of the crop.

  Therefore, electrostatic spraying devices that can efficiently attach the spray to the entire crop by applying high-voltage static electricity to the spray are sold. For example, Japanese Patent Application Laid-Open No. 2004-49999 Proposed. According to these electrostatic spraying devices, the suction force of the spraying agent is several tens of times that of gravity due to the electrostatic charging action, and the spraying agent can be efficiently attached to the entire crop. Since the amount of the agent used can be reduced, the operation cost can be reduced and the influence on the human body can be reduced.

JP 2004-49999 A

  Since all of the conventional electrostatic spraying devices are dedicated devices, when performing electrostatic spraying, in addition to existing spraying devices that are not electrostatic spraying devices, newly install electrostatic spraying devices. There is a problem that it is necessary to purchase, which is an economic burden for the user.

  Moreover, since the large-sized spraying device for outdoor fields and the small-sized spraying device for houses are different forms, the electrostatic spraying apparatus must be manufactured in each form, and there is a problem that the manufacturing cost is high. .

  The present invention has been made to solve the above problems, and provides a charging device for a spreader that can perform electrostatic spraying by being attached to an existing spreader that is not a dedicated electrostatic sprayer. For the purpose.

  A charging device for a spreader according to the present invention is detachably attached to a spray nozzle of a sprayer, a charge band for charging a spray sprayed from the spray nozzle with static electricity, and a high voltage generating means for generating the high voltage. And high voltage supply means for supplying the high voltage generated by the high voltage generation means to the charge band.

  The charging band is made of a material having conductivity and flexibility, and covers a band part that covers the periphery of the spray nozzle; a support part that contacts the spray nozzle and supports the spray nozzle; and the band part And an urging member that urges the support portion toward the inner side of the band portion.

  An insulating cover may be provided outside the band portion of the charge band.

  A fastener may be provided at one end of the charge band, and a plurality of openings for fastening the fastener may be formed along the longitudinal direction of the charge band at the other end.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1A is an explanatory diagram showing the configuration of an existing spreader, FIG. 1B is an explanatory diagram showing the configuration of a charging device for a spreader according to an embodiment of the present invention, and FIG. (B) is a side sectional view showing a fastening screw and an opening for fastening a charging band.

  The charging device for the spreader according to the embodiment of the present invention can be applied to all sprays such as outdoor cultivation, house cultivation, planting tree, etc., and is mounted on, for example, an existing spreader 1 as shown in FIG. The The spreader 1 includes a container 2 (tank) that stores a spray agent such as agricultural chemicals, a spray nozzle 3 that sprays the spray agent, and a supply pipe 5 that supplies the spray agent in the container 2 to the spray nozzle 3 by a compressor 4. Have

  As shown in FIG. 1 (B), the charging device for a spreader of the present invention is detachably attached to the spray nozzle 3 of the spreader 1 and charges the spray agent 6 sprayed from the spray nozzle 3 with static electricity. A band 9, a transformer 9 (transformer) that boosts the voltage supplied from a power source 8 such as a battery to a high voltage, and a high voltage supply unit 10 that supplies the high voltage supplied from the transformer 9 to the charging band 7 are provided. And a controller 11.

  As shown in FIGS. 1 (B) and 2 (A), the charging band 7 includes a band portion 12 that covers the periphery of the spray nozzle 3 and a needle that contacts the spray nozzle 3 to support the spray nozzle 3. And a spring 14 (a biasing member) that is attached to the inner surface of the band portion 12 and biases the support portion 13 toward the inner side of the band portion 12.

  The band part 12 is made of a material having conductivity and flexibility, such as stainless steel. The support portion 13 is made of, for example, plastic. The spring 14 is accommodated in an accommodating portion 15 fixed to the inner surface of the band portion 12.

  An insulating cover 16 made of an insulator is provided outside the band portion 12 of the charging band 7.

  As shown in FIG. 2B, a fastening screw 17 is provided at one end of the charging band 7, and a plurality of screws screwed to fasten (screw) the fastening screw 17 to the other end. An opening 18 is formed along the longitudinal direction of the charging band 7. Since the diameter of the charging band 7 can be changed by changing the position of the opening 18 for fastening the fastening screw 17, it can be applied to the spray nozzle 3 of various sizes.

  The transformer 9 outputs a high voltage of, for example, 50,000 volts to 70,000 volts.

  The high voltage supply unit 10 of the controller 11 is configured by making a wiring (circuit) for making a positive electrostatic charge a high voltage on a printed board. Further, the controller 11 is provided with a changeover switch 19 that performs ON / OFF switching when supplying or not supplying a high voltage.

  The controller 11 has a first output terminal 20 (+ terminal) and a second output terminal 21 (− terminal), and the first output terminal 20 is connected to the charge band 7 via the first lead wire 22. The second output terminal 21 is grounded via the second lead wire 23. In addition, you may fix the 1st lead wire 22 to the hose of the existing spreader 1 with a tape.

  The controller 11 is heat-resistant, and is composed of a box in which a printed circuit board is hardened with a thermosetting resin such as an epoxy resin. The controller 11 is black so that the internal structure is not easily known by a third party. It is preferably boxed.

  It is preferable to install a high resistance body or an eddy current prevention body in the controller 11.

  The power source 8 is a battery usually used for automobiles or compressors, for example.

  Next, the operation of the charging device for the spreader according to the embodiment of the present invention will be described. First, the charging band 7 is attached to the spray nozzle 3 of the existing spreader 1. At that time, in accordance with the size of the spray nozzle 3, the fastening screw 17 is inserted into the opening 18 at an appropriate position of the band portion 12 and fastened.

  Next, the changeover switch 19 of the controller 11 is turned ON, and a high voltage is applied from the high voltage supply unit 10 of the controller 11 to the band unit 12 of the charging band 7. As a result, positive static electricity can be charged in the band portion 12 and negative static electricity can be charged in the vicinity of the spray nozzle of the spray nozzle 3 (see FIG. 1B).

  Therefore, since the spray 6 that comes out of the spray port of the spray nozzle 3 is charged with negative static electricity, the suction force of the spray 6 is improved, and the spray 6 can be efficiently attached to the entire crop. Can do. As a result, the usage amount of the spray 6 can be reduced, so that the work cost can be reduced and the influence on the human body can be reduced.

  According to the charging device for the spreader according to the embodiment of the present invention, it is possible to perform electrostatic spraying by attaching to the existing spreader 1 that is not a dedicated electrostatic spreader. It is not necessary to purchase a spraying device, and the burden on the user can be reduced.

  Further, the present invention can be applied to any type of spreader regardless of the type, such as a large spreader for outdoor use and a small spreader for house use.

  Furthermore, when the spring 14 in the storage part 15 and the support part 13 provided at the tip thereof extend and contract, it is possible to adapt and attach to spray nozzles having different diameters.

  The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the technical matters described in the claims.

  For example, the controller 11 may include a voltage adjustment unit that adjusts the voltage value supplied to the charge band 7.

  Further, in the case of a spreader provided with a plurality of spray nozzles 3, it has a plurality of charge bands 7 for mounting on each spray nozzle 3.

(A) is explanatory drawing which shows the structure of the existing spreader, (B) is explanatory drawing which shows the structure of the charging device for spreaders which concerns on embodiment of this invention.

(A) is a front view which shows a charge band, (B) is side sectional drawing which shows the fastening screw and opening part which fasten a charge band.

Explanation of symbols

1: Sprinkler 2: Container 3: Spray nozzle 4: Compressor 5: Supply pipe 6: Spraying agent 7: Charge band 8: Power supply 9: Transformer 10: High voltage supply unit 11: Controller 12: Band unit 13: Support unit 14 : Spring 15: Storage portion 16: Insulating cover 17: Fastening screw 18: Opening portion 19: Changeover switch 20: First output terminal 21: Second output terminal 22: First lead wire 23: Second lead wire

Claims (4)

A charging band that is detachably attached to the spray nozzle of the spreader and charges the spray sprayed from the spray nozzle with static electricity;
High voltage generating means for generating the high voltage;
High voltage supply means for supplying a high voltage generated by the high voltage generation means to the charge band;
A charging device for a spreader characterized by comprising:   The charging band is made of a material having conductivity and flexibility, and covers a band part that covers the periphery of the spray nozzle; a support part that contacts the spray nozzle and supports the spray nozzle; and the band part The charging device for a spreader according to claim 1, further comprising an urging member attached to an inner surface of the urging member and urging the support portion toward an inner side of the band portion.   The charging device for a spreader according to claim 1, wherein an insulating cover is provided outside the band portion of the charging band.   A fastener is provided at one end of the charge band, and a plurality of openings for fastening the fastener at the other end are formed along the longitudinal direction of the charge band. The charging device for a spreader according to any one of claims 1 to 3.

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