JPH08197022A - Ultrasonic washer equipped with weir - Google Patents

Abstract

PURPOSE: To effectively transmit ultrasonic waves to the inside of material to be washed without the ultrasonic wave being damped in a washing tank only by soaking the bottom of the material to be washed into water in the washing tank in order to effectively when the inside of a vessel or the like as a matter of priority by using ultrasonic waves, and also to simplify the handling of the material to be washed. CONSTITUTION: A washer consists of a washing tank 1 consisting of an ultrasonic washing tank 2 having an ultrasonic vibrator transducer 3 and an overflow tank 4 placed adjacent to the ultrasonic washer 2, a circulation pump 7, transfer piping 8 and return piping 9. At the upper end of the sidewall between the ultrasonic washing tank 2 and the overflow tank 4, notches are formed, and the circulation pump 7 is operated to circulate washing water in the ultrasonic washing tank 2. The washing water is caused to flow out by gravity from the notches while the free surface is kept above to form weirs 5. A bottom guide plate 6 placed at the lower edges of the weirs 5 is fitted as a bridge between both the weirs 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic washing machine for washing a container such as an ampoule or a bottle with ultrasonic waves, by efficiently irradiating ultrasonic waves to the inside of the object to be washed, Furthermore, the present invention relates to an ultrasonic cleaner for the purpose of simplifying the transportation of the object to be cleaned.

[0002]

2. Description of the Related Art Conventionally, ultrasonic cleaners for containers such as ampoules and bottles have been used with the container being submerged in water in an ultrasonic cleaning tank.
A method of irradiating an object to be cleaned with ultrasonic waves and cleaning the same is generally performed.

[0003]

In the prior art, in the water of the ultrasonic cleaning tank, the object to be cleaned is irradiated with ultrasonic waves, and the surface of the object to be cleaned is contacted with water by cavitation by ultrasonic waves. Is generated, and the cavitation is used to clean the surface of the object to be cleaned by removing dirt and foreign substances.Generally, the inside of the container can be cleaned mainly when cleaning the container. Although required, in the conventional method,
Cavitation occurs first on the outer surface of the object to be cleaned, where the ultrasonic waves are attenuated and weakened inside the container.
Therefore, the cleaning effect on the inner surface of the container has a worse effect than the outer surface of the container.

In addition, in order to sufficiently clean the inner surface of the object to be cleaned, a powerful ultrasonic wave generator may be used.
The strong ultrasonic waves may damage the outer surface of the object to be cleaned.

As water in the ultrasonic cleaning tank, deaerated water is used to suppress cavitation in the tank or on the outer surface of the object to be cleaned, or water in the ultrasonic cleaning tank is circulated to remove water by ultrasonic waves. Carefully increase the water tension before use. It is possible to solve the above problems by performing ultrasonic cleaning while injecting new water, that is, air having a low tension that easily causes cavitation, into the object to be cleaned. Done.

However, in order to embody the above method, it is necessary to inject water into an object to be cleaned such as a container in the ultrasonic cleaning tank. Therefore, a water injection nozzle is inserted into the container to clean the object to be cleaned. Is required to be submerged in the ultrasonic cleaning tank, and the apparatus becomes complicated due to the supply and removal of the object to be cleaned into the ultrasonic cleaning tank, making the price of the automatic cleaning machine expensive.

The present invention has been made in view of the above problems of the prior art, and an object thereof is to efficiently clean the inside of the object to be cleaned and to clean the object to be cleaned. It is an object of the present invention to provide an ultrasonic cleaning device that can design and manufacture an ideal automatic cleaning machine for containers such as ampoules and bottles by a simple method without submerging in the ultrasonic cleaning tank.

[0008]

In order to achieve the above object, in an ultrasonic cleaner of the present invention, an overflow tank is provided on both sides adjacent to an ultrasonic cleaning tank having an ultrasonic vibrator, The bottom part of the overflow tank and the bottom part of the ultrasonic cleaning tank were connected by a return pipe, a circulation pump, and a feed pipe to provide a circulation system for cleaning water.

Further, by providing cutouts for supplying and taking out the object to be cleaned at both upper ends of the side wall of the ultrasonic cleaning tank which is in contact with the overflow tank, the circulation pump is operated to remove the water in the overflow tank. It is sucked into the circulation pump through the return pipe and sent into the ultrasonic cleaning tank through the feed pipe. Therefore, the cleaning water in the ultrasonic cleaning tank flows out of the notch into the overflow tank to form a “cough”.

Further, the bottom guide plate of a thin metal plate reinforced on both sides is bridged to the positions of the lower edges of the weirs on both sides of the ultrasonic cleaning tank, and the object to be cleaned is submerged in the ultrasonic cleaning tank. Instead, it can be placed on the bottom guide plate and moved.

[0011]

When the circulation pump of the ultrasonic cleaning device configured as described above is operated, the water sent to the ultrasonic cleaning tank is
From the notch provided on the upper side wall of the ultrasonic cleaning tank, while having a free surface above, it flows out by gravity and forms a "cough." Therefore, the bottom guide plate is installed at the lower edge of the cough. Therefore, the ultrasonic waves emitted from the ultrasonic transducer installed immediately below the bottom guide plate are washed by placing the object to be cleaned on the bottom guide plate. It can be washed in the water of the tank, permeate the bottom guide plate and reach the object to be cleaned efficiently.

[0012]

EXAMPLES Examples will be described with reference to the drawings.
In FIG. 1, the cleaning tank main body 1 is a box type with an open upper part, and the inside is divided into three chambers, which consist of an ultrasonic cleaning tank 2 in the center and overflow tanks 4 on both sides. The upper end of the contacting side wall is cut out to provide a weir 5, and a bottom guide plate 6 is provided so as to bridge the lower edges of the both weirs 5.
Is installed. In addition, the bottom guide plate 6 is designed to efficiently transmit ultrasonic waves from the experience so far between the ultrasonic cleaning tank 2 portion, that is, between the inlet and outlet coughs 5.
A thin stainless steel plate having a thickness of 0.3 mm and reinforced on both sides is used.

The ultrasonic transducer 3 is horizontally installed in the lower central portion of the bottom guide plate, and the distance between the upper surface of the ultrasonic transducer 3 and the water surface of the ultrasonic cleaning tank 2 is set by the screwed leg 16. A quarter of the ultrasonic wavelength in water generated by the ultrasonic transducer 3
It can be adjusted within the above range.

Further, a circulation pump 7 is installed, and a feed pipe 8
By connecting the ultrasonic cleaning tank 2 to the overflow tanks 4 on both sides with the return pipe 9 and operating the circulation pump 7, the circulation pump 7 sucks the water in the overflow tank 4 to the ultrasonic cleaning tank 2. By the water supply, the cleaning water in the ultrasonic cleaning tank 2 flows out from the cough 5 into the overflow tank 4, is again sucked by the circulation pump 7, and is supplied to the ultrasonic cleaning tank 2. Therefore, the cleaning water in the ultrasonic cleaning tank 2 is circulated.

An embodiment of a bottle ultrasonic cleaning machine will now be described with reference to the drawings. In FIG.
2 are individually transported from the right side of the cleaning tank main body 1 onto the bottom guide plate 6 by the transportation attachment 14, and only the bottom is immersed in the cleaning water in the ultrasonic cleaning tank 2.

Further, in the upper part of the ultrasonic cleaning tank 2, the cleaning water is injected into the bottle to be cleaned 12 by the water injection nozzle 10 mounted on the nozzle header 11 which moves up and down by the cleaning machine driving part 15, and the ultrasonic waves in the lower part The inside of the bottle to be cleaned 12 is cleaned by the ultrasonic waves emitted from the vibrator 3, and the peeled dirt and foreign substances are discharged to the outside of the bottle by the injected water.
It flows into the ultrasonic cleaning tank 2 and is discharged from the system through the overflow pipe 13. Although not shown in the drawing, generally, a filter is installed in the middle of the feed pipe 8 and the foreign matter is removed by the filter.

[0017]

Since the present invention is configured as described above, it has the following effects.

Unlike the conventional method, since the container such as the ampoule and the bottle is not submerged in the ultrasonic cleaning tank,
In water, ultrasonic waves are not attenuated by cavitation that occurs on the outer surface of the container to be cleaned, and penetrate the thin bottom plate guide. The inside of the container can be efficiently washed by reaching the washing water inside.

In the ultrasonic cleaning tank, the distance between the upper surface of the ultrasonic vibrator and the water surface is adjusted to an integral multiple of a quarter of the ultrasonic wavelength in water generated by the ultrasonic vibrator. By causing resonance between the upper surface of the ultrasonic transducer and the water surface, it becomes possible to apply stronger ultrasonic waves to the container to be cleaned, and a highly efficient ultrasonic cleaner can be provided.

Regarding the handling, the object to be cleaned is placed on the bottom guide plate, and while passing the cleaning water into the object to be cleaned, it is passed over the ultrasonic cleaning tank.
Since it can be washed, the ampoule
An automatic washing machine for containers such as bottles can be provided.

[0021]

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an embodiment of an ultrasonic cleaner having a cough.

FIG. 2 is a vertical cross-sectional view of an example showing a cleaning state of a container with an ultrasonic cleaning device having a cough.

[Explanation of symbols]

 1 Cleaning Tank Main Body 2 Ultrasonic Cleaning Tank 3 Ultrasonic Transducer 4 Overflow Tank 5 Cough 6 Bottom Guide Plate 7 Circulation Pump 8 Feed Pipe 9 Return Pipe 10 Water Injection Nozzle 11 Nozzle Header 12 Washed Bottle 13 Overflow Pipe 14 Transfer Attachment 15 Cleaning Machine drive part 16 Leg with screw

Claims (2)

[Claims] 1. A cleaning tank body (1) comprising an ultrasonic cleaning tank (2) having an ultrasonic vibrator (3) and an overflow tank (4) adjacent to the ultrasonic cleaning tank (2), and a circulation pump. (7) An ultrasonic cleaner comprising a feed pipe (8) and a return pipe (9), wherein water sucked from the overflow tank (4) through the return pipe (9) by the circulation pump (7) is fed into the feed pipe. Through the notch provided in the upper part of the side wall of the ultrasonic cleaning tank (2) which is sent to the ultrasonic cleaning tank (2) through (8) and is in contact with the overflow tank (4) of the ultrasonic cleaning tank (2), while having a free surface above the gravity, An ultrasonic cleaner having a circulation system that flows into the overflow tank (4) and forms a cough (5). 2. The super according to claim 1, further comprising a bottom guide plate (6) installed so as to bridge the lower edges of the left and right weirs (5) provided on both walls of the ultrasonic cleaning tank (2). Sonic cleaner.