JP2004014319A - Static eliminator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable complete elimination of the static charged on a container. <P>SOLUTION: This static eliminator is used for removing the static charged on the inner and outer faces of a bottle as a container and comprises a loop nozzle 12 which has a loop part 12b that is bent in loop shape and is formed of a discharge port 14 for injecting air on the outside of the bottle 30 and a straight nozzle 11 which has a straight part 11d that passes through the center of the loop part 12b and is formed of a discharge port for injecting air to the inside of the bottle 30. Air which is ionized by a pair of electrodes made of a discharge needle and a conductor installed in the device unit 10 is supplied to each nozzle 11, 12. Thereby, the ionized air is blown on both the inner face and the outer face of the bottle 30, and the static electricity charged on both the inner and outer faces of the bottle 30 is removed. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a static electricity removing device that generates ionized air to remove static electricity charged in a container for storing beverages such as sports drinks and tea, cosmetics, medicines, and the like.
[0002]
[Prior art]
BACKGROUND ART Beverages such as mineral water, sports drinks, and Japanese tea are sold in bottles made of a soft synthetic resin such as polyethylene terephthalate or polyester. Further, cosmetics, chemicals, and the like may be stored in a glass container. To fill them into bottles, it is necessary not only to wash and sterilize the bottles in advance, but also to remove static electricity charged on the bottles. The reason why the static electricity charged on the bottle is removed is that, if the static electricity is charged, foreign substances such as dust may adhere to the surface of the bottle in a process of transporting the bottle after cleaning and sterilization.
[0003]
Therefore, it is necessary to remove the static electricity from each bottle in order to prevent the adhesion of foreign substances caused by static electricity, but it is difficult to remove the static electricity even if the insulator is connected to the ground. There is.
[0004]
[Problems to be solved by the invention]
As a method of removing static electricity charged on an article, a static eliminator called an ionizer or an ion generator has been researched and developed, and it has been found that the static electricity can be neutralized by blowing ionized air onto the article. However, when ionized air was blown to the outer surface of the bottle in order to remove the static electricity charged on the resin bottle, the inner surface of the bottle was charged more than before neutralizing the static electricity on the outer surface. It turned out to increase, and it was insufficient for the charge removal of a bottle.
[0005]
An object of the present invention is to make it possible to reliably remove static electricity charged in a container in a short time.
[0006]
[Means for Solving the Problems]
The static eliminator of the present invention is a static eliminator for removing static electricity charged on the inner and outer surfaces of a container, and includes a loop portion which is curved in a loop shape and has a discharge port formed to eject air to the outer surface of the container. Loop nozzle, a straight nozzle having a straight portion formed with a discharge port for ejecting air to the inner surface of the container through the center of the loop portion, each of the nozzles is attached, from the air supply source An apparatus main body having an air flow path for guiding air to the nozzle, an electrode pair including a discharge needle and a conductor provided in the apparatus main body, and ionizing air flowing through the air flow path; and the electrode pair And a power supply unit for supplying power to the power supply.
[0007]
In the static eliminator of the present invention, the electrode pair is provided in each of an air flow path for guiding air to the loop nozzle and an air flow path for guiding air to the straight nozzle.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view showing the whole of a static electricity removing device according to an embodiment of the present invention, FIG. 2 is a front view of FIG. 1 in a state where static electricity in a container is removed, and FIG. FIG. 4 is an enlarged sectional view taken along line AA in FIG.
[0009]
As shown in FIG. 1, two nozzles, a straight nozzle 11 and a loop nozzle 12, are attached to the apparatus main body 10. The straight nozzle 11 is connected to the base end 11a, the support part 11b which is bent in a direction substantially perpendicular to the base end 11a and extends straight, and the straight nozzle 11 is straightened parallel to the support part 11b via the reversing part 11c. A straight portion 11d is extended, and a plurality of discharge ports 13 for ejecting air radially outward are formed at the tip of the straight portion 11d.
[0010]
On the other hand, the loop nozzle 12 has a base end portion 12a and a loop portion 12b connected thereto and curved in a loop shape so as to surround the tip end portion of the straight portion 11d in a circular shape with a gap therebetween. A plurality of ejection ports 14 for ejecting air inward in the radial direction are formed inside. The loop portion 12b has a circular shape when viewed from the direction along the straight portion 11d, but has a coil shape such that the distal end of the loop portion 12b is displaced from the base end 12a in the axial direction, which is the direction along the straight portion 11d. It has become. Although the loop portion 12b of the illustrated loop nozzle 12 is formed as a single turn in a coil shape, the loop portion 12b may be formed by a coil portion having a plurality of turns. May be formed in a closed annular shape, and the base end portion 12a may communicate with a part of the closed annular shape.
[0011]
The nozzles 11 and 12 are detachably attached to heads 15 and 16 attached to the apparatus main body 10, and the heads 15 and 16 are formed of a conductor such as an aluminum alloy. FIG. 4 is a sectional view showing one head 15, and the other head 16 has the same structure. Joints 17 for detachably mounting the nozzles 11 and 12 are screwed to the heads 15 and 16. Each of the heads 15 and 16 is detachable from an air supply block 18 provided on the apparatus main body 10 and made of an insulating material such as resin. The air supply block 18 has external threads 19 a formed on the heads 15 and 16. Is formed with a female screw 19b to be screw-coupled to. Two air supply blocks 18 are provided in the apparatus main body 10 corresponding to the respective nozzles 11 and 12, and each of the air supply blocks 18 has the same structure.
[0012]
The air supply block 18 is formed with an air flow path 22 that communicates the air inlet 21 with the nozzles 11 and 12, and the air inlet 21 is provided with an air supply source 23 such as a fan or a compressor through an air introduction path 24. The filter 25 is connected to the air introduction passage 24 and is provided with a filter 25 for removing foreign matter such as dust in the air. Therefore, the air discharged from the air supply source 23 is supplied from the air inlet 21 to the nozzles 11 and 12 via the air flow path 22.
[0013]
Discharge needles 26 are attached to the air supply block 18 so as to correspond to the heads 15 and 16, and the tips of the discharge needles 26 enter the heads 15 and 16. A cylindrical bush 27 made of an insulating material for discharge adjustment is incorporated in the heads 15 and 16, and the bush 27 surrounds the tip of the discharge needle 26, and a gap between the bush 27 and the discharge needle 26 is formed. An air passage 22 is formed.
[0014]
The heads 15 and 16 made of conductors and the discharge needles 26 constitute discharge electrode pairs, respectively, and a high frequency voltage of several kHz or more is supplied from the power supply unit 28 to these discharge electrodes. Thereby, the air flowing in the air flow path 22 is ionized by the corona discharge generated between the discharge electrode pairs. In order to electrically connect the heads 15 and 16 to the terminals of the power supply unit 28, an annular connection terminal 29 is provided between the end face of the air supply block 18 and the end faces of the nozzles 15 and 16. Therefore, the air supplied from the air supply source 23 and flowing through the air flow path 22 is ionized by corona discharge and supplied to the respective nozzles 11 and 12.
[0015]
FIG. 2 shows a state in which static electricity charged in a PET (polyethylene terephthalate) bottle 30 is removed, and the apparatus main body 10 is configured such that the straight part 11d of the straight nozzle 11 faces downward, and a fixed base (not shown). When the static electricity of the bottle 30 is removed, the bottle 30 is moved upward from the lower side with the tip thereof facing upward, and the straight portion 11d of the straight nozzle 11 is moved to the tip of the bottle 30. And the loop portion 12b of the loop nozzle 12 faces the outer surface of the bottle 30.
[0016]
In this manner, while moving the bottle 30 along the straight portion 11d of the straight nozzle 11, air is supplied from the air supply source 23, and power is supplied from the power supply unit 28 to the electrode pair consisting of the heads 15, 16 and the discharge needle 26. Is supplied, ionized air is supplied to each of the nozzles 11 and 12. Thereby, ionized air is blown to the outer peripheral surface of the bottle 30 from the discharge port 14 provided in the loop portion 12 b of the loop nozzle 12, and the bottle 13 is discharged from the discharge port 13 formed in the straight portion 11 d of the straight nozzle 11. Ionized air is blown onto the inner peripheral surface of the 30. Therefore, even if the inner and outer surfaces of the bottle 30 are charged with static electricity, both the inner and outer surfaces are removed at once, so that the static electricity of the bottle 30 can be reliably removed.
[0017]
This static eliminator, when filling a container such as a bottle with a beverage at a beverage manufacturing plant or the like, removes the static electricity charged on the bottle 30 in advance, so that the bottle 30 is charged during the transportation process of the bottle 30 or the like. The static electricity can be removed, and it is possible to prevent dust and dust from adhering to the bottle 30 due to the charged static electricity in a transportation process or the like. Thereby, the cleanliness of the filled beverage can be increased.
[0018]
As described above, the removal of static electricity from the bottle 30 may be performed by moving the bottle 30 by fixing the static electricity removing device, or by moving the bottle 30 by fixing the bottle 30. As long as the bottle 30 and the straight portion 11d are relatively moved in the axial direction, one or both of them may be moved. Further, when removing the static electricity, the tip of the bottle 30 may be directed downward instead of pointing the tip of the bottle 30 upward, or the bottle 30 may be relatively moved so as to be inclined.
[0019]
The present invention is not limited to the above embodiment, and can be variously modified without departing from the gist thereof. For example, FIG. 2 shows the case where the present invention is applied to the case where a PET bottle 30 is filled with a beverage. It can be applied for its static elimination.
[0020]
Although the illustrated static electricity elimination device is provided with two heads 15 and 16 that form an electrode pair with the discharge needle 26 in the apparatus main body 10, only one electrode pair is used to ionize the air flowing through the air flow path 22. The ionized air may be branched and supplied to the two nozzles 11 and 12.
[0021]
The base ends 11a and 12a of the respective nozzles 11 and 12 are attached to the apparatus main body 10 adjacent to each other. However, if the head 15 is separated from the head 16, the support portion 11b is not provided to the straight nozzle 11. A straight portion 11d can be provided at the distal end of the base end portion 11a.
[0022]
【The invention's effect】
According to the present invention, static electricity charged in a container such as a resin bottle can be almost simultaneously removed from both the inside and outside thereof, so that the static electricity charged in the container can be reliably removed. Moreover, the static electricity in the container can be quickly removed by the operation of blowing the ionized air.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an entire static electricity removing device according to an embodiment of the present invention.
FIG. 2 is a front view of FIG. 1 in a state where static electricity of the container is removed.
FIG. 3 is a plan view of FIG. 1;
FIG. 4 is an enlarged sectional view taken along line AA in FIG.
[Explanation of symbols]
Reference Signs List 10 apparatus main body 11 straight nozzle 11a base end 11b support part 11c inversion part 11d straight part 12 loop nozzle 12a base end 12b loop part 13 discharge port 14 discharge port 15 head 16 head 17 joint 18 air supply block 19a male screw 19b female screw 21 Air inlet 22 Air flow path 23 Air supply source 24 Air introduction path 25 Filter 26 Discharge needle 27 Bush 28 Power supply unit 29 Connection terminal 30 Bottle (container)

Claims (2)

A static eliminator for removing static electricity charged on the inner and outer surfaces of the container,
A loop nozzle having a loop portion which is formed in a loop shape and has a discharge port for ejecting air to the outer surface of the container,
A straight nozzle having a straight portion formed with a discharge port that ejects air to the inner surface of the container through the center of the loop portion,
An apparatus main body in which each of the nozzles is attached, and an air flow path for guiding air from an air supply source to the nozzles is formed;
An electrode pair having a discharge needle and a conductor provided in the device main body, and ionizing air flowing through the air flow path,
And a power supply unit for supplying power to the electrode pair. The static eliminator according to claim 1, wherein the electrode pair is provided in each of an air flow path for guiding air to the loop nozzle and an air flow path for guiding air to the straight nozzle. .

Images