JPS6012188A - Ultrasonic washing method and device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] Field of Technology> The disclosed technology is an ultrasonic cleaning method that quickly supplies cleaning liquid into a cleaning ffI tank and performs ultra-precise cleaning by blocking outside air as much as possible. belongs to the technical field of

Summary of the invention The invention of this application provides an ultrasonic cleaning method in which an object to be cleaned is immersed in a cleaning liquid in a cleaning tank and precision cleaned using an ultrasonic vibrator, and an ultrasonic cleaning device directly used therefor. It is an invention relating to, in particular, a closed cleaning tank is formed by closely fitting a lid to the frontage of the cleaning tank, and then the cleaning liquid is supplied into the cleaning tank by a fluid pressure transformer such as a compressor, etc. Precise cleaning is performed using the ultrasonic vibration energy of the ultrasonic vibrator, and after the specified cleaning is completed, the cleaning liquid in the cleaning chamber is transferred to the cleaning liquid storage tank by the differential pressure inside the cleaning tank or the like. An ultrasonic cleaning method in which the cleaning liquid adhering to the cleaning object is washed away through a fluid using the pressure difference in a cleaning tank or the like using the fluid pressure transformer after the cleaning liquid has been discharged, and the method is directly applied to the ultrasonic cleaning method. This is related to the ultrasonic cleaning device used.

<Prior Art> As is well known, when cleaning objects such as glass products such as lenses and other precision parts, precision cleaning using ultrasonic cleaning is generally performed.

<Problems with the prior art> In conventional ultrasonic cleaning, for example, cleaning baskets containing lenses to be cleaned are sequentially transported into each cleaning tank for a plurality of fixed cleaning tank groups. However, since the washing basket is moved up and down to carry in and out of each washing tank, the capacity of the washing tank itself must be relatively large. The volume of the cleaning liquid supplied and discharged from the tank also increases, and as a result, it takes a long time to supply and discharge the cleaning liquid, making it possible to eliminate all the dirty cleaning liquid in each cleaning tank for each cleaning.
Since the cleaning liquid is used for a predetermined number of times, dirt tends to reappear on the items to be washed, resulting in a significantly lower cleaning efficiency.

Furthermore, when a cleaning basket containing cleaned lenses is transported to the next cleaning tank, the dirty cleaning solution remaining on the lenses and the cleaning basket drips onto the new cleaning solution in the next cleaning tank, making the new cleaning solution dirty. This is inconvenient, and furthermore, since the cleaning basket is placed above the inside of the cleaning tank and taken out to the outside for transportation between each cleaning tank, dust and other particles in the outside air tend to adhere to the cleaned lenses. However, there was a disadvantage that the ultra-precision cleaning effect was impaired.

In addition, as mentioned above, most conventional ultrasonic cleaning equipment consists of multiple cleaning tanks, making the main body of the equipment large, occupying a large proportion of the installation space, and having poor mobility. There was a problem.

<Objective of the Invention> The object of the invention of this application is to solve the problems of ultrasonic cleaning based on the above-mentioned prior art as a technical problem, and to improve the cleaning efficiency by quickly supplying and discharging the cleaning liquid to the cleaning tank in a short period of time. In addition to improving the drainage of the washed items, it also reduces the amount of dust in the outside air. etc., and also completely washes off the cleaning liquid of the cleaning object (d) with purified water, etc., and also dries the cleaning object, so that this washing and drying process can be repeated sequentially, and is suitable for various industries.] It is an object of the present invention to provide an excellent ultrasonic cleaning method for precision cleaning that is useful in the field of cleaning applications, and an ultrasonic cleaning device that can be used directly in the method.

<Structure of the Invention> In accordance with the above-mentioned object, in addition to the invention of this application whose subject matter is the above-mentioned claims, or in order to solve the above-mentioned problems, the object to be washed is transferred to a washing tank by a predetermined means. A closed cleaning tank is formed by fitting the lid body tightly to the opening of the cleaning tank by a predetermined means, and then the sealing is performed through a differential pressure inside the tank such as the M sealed cleaning tank using a fluid pressure transformer such as a compressor. Supplying cleaning liquid from the cleaning liquid storage tank into the cleaning tank, the cleaning basket is immersed in the cleaning liquid, precision cleaning is performed using the ultrasonic vibration energy of the ultrasonic vibrator, and after the specified cleaning is completed, the cleaning liquid is applied to the differential pressure inside the tank. The cleaning liquid is discharged back to the cleaning liquid storage tank through the tank, and then the fluid is switched and supplied to the closed cleaning chamber via the tank pressure difference to wash away the cleaning liquid that has settled on the cleaning object. C. After being discharged to the outside of the sealed cleaning tank, the drying gas is radiated onto the cleaning items through the fluid pressure transformation device to dry them, and the cleaning process is repeated in the sealed cleaning tank to continuously dry the cleaning items. It takes technical measures to wash and dry the product.

<Embodiments - Configuration> Next, embodiments of the invention of this application will be described below based on the drawings.

Reference numeral 1 summarizes the gist of the invention of this application. 1 is an ultrasonic cleaning device, in which a panel 3 serving as a casing on a base 2 (the skeleton frame is omitted for convenience of illustration) has a frontage portion at the upper end in a substantially central portion thereof. A cleaning tank 5 having a cleaning tank 5 is provided, and a cleaning tank 5 having a cleaning tank 5 is provided, and the cleaning liquid is supplied from a cleaning liquid storage tank 8 provided at the bottom of the panel 3 through a switching valve 7. It is connected to the port 9, and the cleaning liquid storage tank 8
The cleaning liquid discharge port 10 is connected to the cleaning liquid supply port 13 of the cleaning tank 5 through a switching valve 11 and a filter 12, so that the cleaning liquid 14 can be purified and circulated freely.

The outside air communication port 15 at the top of the cleaning tank 5 communicates with the outside air through one switching valve 16 and is connected to an air compression source 18 as a fluid pressure transformer through the other switching valve 17. The compressed air source 18 is connected to the compressed air supply port 20 of the cleaning liquid storage 418 via a switching valve 19.

Further, the downward nozzle 21 provided in the upper part of the cleaning tank 5 is connected to the other air compression source 23 via a switching valve 22.

Furthermore, an upward nozzle 24 provided in the medium heat section in the cleaning tank 5
is connected via one switching valve 25 to a faucet of water supply or the like (not shown), and the faucet is connected via the other switching valve 26 to the purified water supply port 28 of the purified water storage tank 21 provided on the base 2. ing.

The purified water outlet 29 of the purified water storage tank 27 is connected to the purified water supply port 31 of the cleaning tank 5 via the switching valve 30, and the compressed air supply port 32 of the purified water storage tank 27 is connected to the purified water supply port 31 of the cleaning tank 5 via the switching valve 30.
is connected to the air compression source 18 which is connected to the cleaning liquid storage tank 8 via a switching valve 33, and supports a cleaning basket 34 provided to the opening 4 of the cleaning tank 5; has hooks 36, 36 extending downwardly on its lower surface, and its upper surface is fixedly supported by the tip of the support frame 37, and the base of the support frame 37 is connected to the panel 3.
It is inserted through a column 38 erected on the upper surface side and is slidable up and down via a cylinder device (not shown).

In addition, 39 is a well-known ultrasonic transducer, which is of the type that can be thrown into the cleaning tank 5, 4o is the cleaning object, 41 is purified water, and 42 is a switching valve, which is a type that can be thrown into the cleaning tank 5. 41 is discharged outside the tank.

<Embodiment - Effect> In the above configuration, lenses 40 as a plurality of cleaning objects.
40... As shown in FIG.
It is latched and set through a predetermined means.

Then, the support frame 31 is moved downward via a cylinder device (not shown) until the lid 35 comes into contact with the upper surface of the opening 4 of the cleaning tank 5, and the lower surface of the lid 35 is brought into contact with the cleaning tank 5.
is brought into close contact with the upper surface of the opening 4 to temporarily form a closed cleaning tank 5' as shown in FIG.

Next, one cycle of the cleaning process from the start to the end of cleaning will be explained by turning each valve on and off according to a time chart not shown in FIG.

The valve 19.11.1G is opened to supply the cleaning liquid 14 in the cleaning liquid storage tank 8 to the closed cleaning tank 5', the air pressure in the storage tank 8 is increased, and the cleaning liquid 14 is supplied to the closed cleaning tank 5'- It is quickly supplied and filled from the cleaning liquid supply 1B [1113].

Then, the dirt adhering to each lens 40, 40, . completely peeled off.

Then, when cleaning with the cleaning liquid 14 is completed, all valves other than valve 1.17 are closed, and the cleaning liquid 14 in the sealed cleaning 5' is stored by pressurizing the compressed air from the air compression source 18. It is quickly circulated back into the tank 8.

Next, the valve 33, 30, 16 is set to the one-port state, the air pressure in the purified water storage tank 27 is increased, and the purified water 41 is quickly supplied to the sealed cleaning tank 5' from the purified water supply port 31 of the sealed cleaning tank 5'.
The cleaning liquid 14 filled in the lens 15' and attached to each of the lenses 40, 40, . . . is washed away.

After the cleaning with the purified water 41 is completed, the valve 42
．． When 17 is opened, the purified water 41 in the hermetic washing 4I5' is quickly discharged to the outside of the tank by the pressurization of compressed air from the air compression source 18.

Furthermore, open the valve 42.25.1G and open the upward nozzle 24.
Purified water is used for the above-mentioned lens 40. 40... A final cleaning is performed after sprinkling water.

After finishing the final cleaning by sprinkling water, the valve 22.
16 is opened, compressed air generated from the air pressure source 23 is injected from the downward nozzle 21 onto the lenses 40, 40, etc., and is dried, completing one cycle of cleaning process:
do.

During cleaning, the sealed cleaning tank prevents dust from the outside air from adhering to the cleaned lenses 40 and 40.

Then, the beneficial body 35 is lowered 4 times through the cylinder device, the lower surface of the lid body 35 is separated from the frontage part 4 of the cleaning tank 5, and the closed cleaning tank 5' formed for cleaning is disassembled,
Cleaning of lenses 4o, 4o... is completed.

<Other Examples> It goes without saying that the embodiments of the invention of this application are not limited to the above-mentioned embodiments. For example, drying may be carried out while rotating a washing basket, or nitrogen or A variety of methods can be adopted, such as spraying hot air or the like to efficiently dry the cleaning items, or installing the ultrasonic vibrator either inside or outside the cleaning tank.

Further, the cleaning tank is not limited to a single tank type, and it goes without saying that the present invention can be applied to a plurality of cleaning tanks.

<Effects of the Invention> According to the invention of this application, in the ultrasonic cleaning method, the cleaning object is stored in the cleaning tank, the lid body is sealed in the cleaning tank,
Thereafter, the cleaning liquid is supplied into the tight cleaning tank via the pressure difference in the tank, and the object to be washed is washed via the ultrasonic vibration energy of the ultrasonic vibrator. By sequentially supplying fluid and gas to finish cleaning the object to be cleaned, the external air is shut off and the closed cleaning tank is quickly filled with cleaning liquid, making effective use of ultrasonic imaging energy. This provides an efficient and uniform precision device, and also has the excellent effect of being able to clean and finish the cleaning items smoothly and in a short time.

During scheduled cleaning, the cleaning items are not taken out from the cleaning tank, which prevents dust from the outside air from adhering to the cleaned items, further increasing cleaning accuracy. This has the advantage of significantly improving efficiency.

In addition, a cleaning tank with an opening in the casing is arranged in -W1 stage, and a lid body is tightly attached to the front part of the cleaning tank and can be detached freely. By connecting the storage W & tank to the cleaning tank above,
The entire device is smaller and requires less installation space.
It is easy to move, and the supply and discharge of cleaning liquid into and out of the cleaning tank is smooth, significantly shortening cleaning time.
Even one cleaning tank has an excellent 1ζ effect that sufficiently increases cleaning efficiency.

[Brief explanation of the drawing]

The drawings are detailed explanatory diagrams of the invention of this application, and FIGS. 1 and 2 are schematic structural diagrams of the ultrasonic cleaning device, and FIG. 3 is an explanatory diagram of opening and closing time charts of each valve. 40...Washing object, 5...Cleaning tank, 14...Cleaning liquid, 34...Washing basket, 35...Washing corner support, 39...Ultrasonic vibrator, 4... Opening, 3...
Casing, 19.11.7... Switching valve, 18... Fluid transformer, 8... Cleaning liquid storage tank, 1
...Ultrasonic cleaning equipment

Claims (2)

[Claims] (1) In an ultrasonic cleaning method in which the object to be cleaned is immersed in a cleaning liquid in a cleaning tank and precision cleaned using an ultrasonic vibrator, the cleaning object is stored in the cleaning tank and then the cleaning tank is sealed via a lid. A cleaning liquid is supplied into the sealed cleaning tank via a pressure difference in the tank, and the object to be cleaned is precisely cleaned by the ultrasonic vibrator, and after the specified cleaning is completed, the cleaning liquid is discharged via a pressure difference in the tank. An ultrasonic cleaning method characterized in that the cleaning liquid adhering to the cleaning object is washed away by supplying fluid into the closed cleaning tank via a pressure difference in the tank. (2) In an apparatus that is directly used in an ultrasonic cleaning method in which an object to be cleaned is immersed in a cleaning liquid in a cleaning tank and precision cleaned with an ultrasonic vibrator, the cleaning tank has an opening and is provided in a casing, The lid body is in close contact with the opening of the cleaning tank and can be detached freely, and the cleaning liquid storage tank M is connected to the cleaning tank via a switching valve and connected to the fluid pressure transformer. An ultrasonic cleaning device featuring: