JPH0420547Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention cleans the object to be cleaned by emitting ultrasonic waves generated by a bolt tightening vibrator from a submerged vibration valve placed in the cleaning tank. However, this paper relates to improvements to ultrasonic cleaning equipment.

(Prior art) Conventionally, as this type of ultrasonic cleaning device, the sixth
As shown in the figure, a submerged vibration valve 2 formed of a metal material on the inner side of the cleaning tank wall 1 that is the object to be installed.
A bolt tightening vibrator 3 is placed on the outer surface side, and these are connected to each other with bolts 3a of the vibrator 3, and each surface facing the tank wall 1 is watertightly pasted with silicone adhesives 4 and 5. By fixing it, the ultrasonic waves generated by the bolted vibrator 3 are transmitted to the submerged vibration valve 2.
There are already known devices configured to emit radiation from

(Problem to be solved by the invention) By the way, in the ultrasonic cleaning device as shown in Fig. 6, ultrasonic waves are emitted from the submerged vibration valve 2 into the cleaning liquid in the cleaning tank, and However, if the ultrasonic vibration energy of the submerged vibration valve 2 is insufficient or if there is vibration of the tank wall 1, the cleaning effect may be insufficient. It may be sufficient.

(Means for solving the problem) This invention focuses on the fact that localized ultrasonic waves are generated when a bubble bursts, and not only emits ultrasonic waves from a submerged vibrating valve, but also emits ultrasonic waves from outside into the liquid. Air is sent to the tip of the vibrating valve to actively generate air bubbles, and the synergistic effect of the cavitation effect of ultrasonic radiation and the action of the air bubbles generated by air injection enables effective cleaning of the object to be cleaned. An object of the present invention is to provide an ultrasonic cleaning device that can perform ultrasonic cleaning.

In the present invention, in a configuration including a submerged vibration valve and a bolted vibrator that are connected to each other through the wall surface of an attached object, the liquid passes through the bolted vibrator and passes through the inside of the liquid vibratory valve. The above-mentioned problems of the prior art are solved by providing gas or liquid feed holes that open on the surface of the medium vibration valve.

(Function) In the ultrasonic cleaning device of the present invention, a gas or liquid feeding hole is provided which penetrates the bolt tightening vibrator and opens on the surface of the submerged vibration valve through the inside of the submerged vibration valve. By sending air from an air compressor, etc. to the tip of the submerged vibrating valve using the feed hole, a large amount of air bubbles can be generated in the cleaning liquid stored in the cleaning tank, and as a result, the submerged vibrating valve In addition to the original cavitation effect caused by the ultrasonic vibrations, a synergistic effect can be obtained between the local ultrasonic action, such as the fact that air bubbles caused by air feeding adhere to and destroy the object to be cleaned. Therefore, the cleaning effect can be improved compared to simply emitting ultrasonic waves into the cleaning liquid. Furthermore, it can also be used by squirting liquid from the feed hole.

(Example) Hereinafter, an example of the ultrasonic cleaning apparatus according to the present invention will be described with reference to the drawings.

1 and 2 show a first embodiment of the present invention. In these figures, the ultrasonic cleaning device is constructed by installing a submerged vibration valve 12 and a bolt tightening vibrator 13 interconnected inside and outside of a wall surface 11 of an attached body 10. .

The submerged vibration valve 12 has a relatively flat umbrella-shaped main body shape, and its tip end surface is a tapered surface 12b in the shape of a cone or a pyramid. A screw shaft 12a used for connection with a bolted vibrator 13 is integrally formed on the rear side of the vibration valve 12. The vibration valve 12 can be formed using a metal material, and if it is formed from a synthetic resin mixed with a reinforcing agent such as carbon fiber or metal powder, the acoustic impedance of water can be approximated. It is possible to improve matching when transmitting ultrasonic waves from No. 12 to water.

Bolt tightening vibrator (Language van type vibrator) 1
3, piezoelectric elements 13c and 13d made of ceramic or the like are sandwiched between a horn part 13a and a backmast part 13b and fixed by tightening with a bolt 13e.
Insulating ring 13f such as glass fiber between
By arranging both piezoelectric elements 13c, 13d
The electrode part on the overlapping surface is the + pole, and the horn part 1
A conductive circuit is formed by using the electrode portions of both piezoelectric elements 13c and 13d that contact the piezoelectric elements 3a and back mass portion 13b as one pole.

This bolt tightening vibrator 13 is formed with an air feed hole 17a that passes through the bolt 13e and the horn portion 13a along its central axis, and the submerged vibration valve 12 is communicated with the air feed hole 17a. An air feeding hole 17b is formed. The air feed holes 17b pass through the inside of the vibration valve 12 and are opened at a plurality of locations on the tapered surface 12b as shown in FIG. When the diameter of the bolt 13e is about 10 mm, the diameter of the air feeding holes 17a and 17b is 1 to 1.5 mm.
It is set to about mm.

For the bolt tightening vibrator 13, the bolt shaft 12a protruding outward from the insertion hole formed in the wall surface 11 of the object to be attached 10 is connected to the horn portion 1 of the vibrator 13.
The submerged vibration valve 12 is attached by being screwed into the screw hole formed in 3a.

During installation, O-rings 14 and 1 made of silicon or the like are installed between the submerged vibration valve 12 and the bolted vibrator 13 and the wall surface 11 of the object to be installed 10.
5 is interposed. These O-rings 14,
15 is positioned and held by grooves formed on the back surface of the vibrating valve 12 and the horn portion 13a of the vibrator 13, and the submerged vibrating valve 12 and the bolted vibrator 1 are held in position.
3 are screwed and connected to each other, they are slightly compressed and deformed, thereby maintaining the distances G ₁ and G ₂ between the opposing surfaces, and also fixing each distance watertightly. If these O-rings 14 and 15 are installed at a position that has an area of about 70% of the diameter of the submerged vibration valve 12 and the bolt tightening vibrator 13, vibration propagation loss can be extremely reduced.

In addition, a submerged vibration valve 12 and a bolt tightening vibrator 13
For connection, a sleeve pipe 16 is fitted onto the axis of the screw shaft 12a, and this through pipe 16 is used as a stopper to connect the submerged vibration valve 12 and the bolted vibrator 13 as well as between the wall surface 11. You can also set each interval.

An air hose 18 connected to an air compressor or the like is connected to the end of the bolt 13e where the rear end opening of the air feed hole 17a is located.

In the ultrasonic cleaning device configured in this way, the third
As shown in the figure, by connecting the submerged vibration valve 12 and the bolted vibrator 13 to each other via the tank wall 21 of the washing tank 20, a small washing machine or the like can be constructed, for example.

In this case, the cleaning tank 20 is filled with a suitable cleaning liquid (for example, water or a mixture of water and a surfactant), the bolted vibrator 13 is energized and excited, and at the same time compressed air is supplied through the air hose 18. When feeding into the feed holes 17a and 17b, the ultrasonic vibration of the bolt tightening vibrator 13 is transmitted from the horn portion 13a to the main body of the submerged vibration valve 12 via the screw shaft 12a, and further from the submerged vibration valve 12 to the horizontal vibration. The air is emitted as a compressional wave in the direction, and along with this, the air feeding holes 17a, 17 are emitted from the opening of the tapered surface of the submerged vibration valve 12.
The air that has passed through b becomes bubbles and is released into the cleaning liquid. As a result, the cavitation effect of the ultrasonic energy and the synergistic effect of the large amount of air bubbles caused by the air feeding make it possible to effectively clean clothes and other objects to be cleaned.

At this time, the ultrasonic waves generated by the bolt tightening vibrator 13 are blocked by O-rings 14 and 15 placed between the submerged vibration valve 12 and the bolt tightening vibrator 13 so as not to propagate to the tank wall 21, so that they are concentrated. Therefore, radiation can be emitted into the cleaning tank 20 only from the submerged vibration valve 12. Furthermore, the opening of the air feed hole 17b is located on the tapered surface 12b, which is the tip end surface of the vibration valve 12, so that a large amount of sufficiently small air bubbles can be generated by the action of ultrasonic waves. The cleaning effect can be sufficiently increased by the action of adhering to and destroying the object to be cleaned.

4 and 5 show a second embodiment of the invention. In this case, the ultrasonic cleaning device has a unit structure in which the box body 30 housing the bolt tightening vibrator 13 is used as the object to be attached, and the submerged vibration valve 12 is exposed outside the wall surface 31 to be inserted into the cleaning tank 20. It is composed of Other details are the same as in the first embodiment described above.

In addition, instead of gas such as air, liquid may be ejected from the feeding holes 17a, 17b, and the liquid may be applied to the object to be cleaned at the same time as sending the ultrasonic waves.

(Effects of the invention) As explained above, the ultrasonic cleaning device of the invention radiates ultrasonic waves generated by the bolt tightening vibrator from the submerged vibration valve, and also generates bubbles by feeding air. Therefore, due to the synergistic effect of the cavitation action of the ultrasonic waves and the local action of the ultrasonic waves due to the destruction of air bubbles, the cleaning action can be exerted extremely efficiently and effectively.

[Brief explanation of the drawing]

FIG. 1 is an enlarged sectional view showing a first embodiment of the ultrasonic cleaning device according to the present invention, FIG. 2 is a front view of the same, and FIG.
The figure is a partially cutaway side view of the ultrasonic cleaning device of the first embodiment installed in a cleaning tank, Figure 4 is a perspective view showing the second embodiment of the present invention, and Figure 5 is a view of the second embodiment. FIG. 6 is a side sectional view of the ultrasonic cleaning device shown in FIG. 10... Mounted object, 11, 21, 31... Wall surface, 12... Submerged vibration valve, 12a... Screw shaft, 1
2b... Tapered surface, 13... Bolt tightening vibrator, 13a... Horn part, 14, 15... O ring, 17a, 17b... Feeding hole, 20... Cleaning tank.

Claims (1)

[Claims for Utility Model Registration] (1) In an ultrasonic cleaning device equipped with a submerged vibration valve and a bolted vibrator that are connected to each other through the wall surface of an attached object, a liquid that penetrates the bolted vibrator and An ultrasonic cleaning device characterized by having a gas or liquid feed hole that passes through the inside of the medium vibration valve and opens on the surface of the submerged vibration valve. (2) The submerged vibration valve has a conical or pyramidal tapered surface on its tip surface, and the gas or liquid feeding hole is opened in the tapered surface. The ultrasonic cleaning device according to item 1.