JPH03258381A - Ultrasonic cleaning machine - Google Patents

Abstract

PURPOSE:To carry out ultrasonic cleaning without need for a cleaning tank by discharging a medium from a medium feed pipe to form the medium layer between the vibrating surface of an ultrasonic vibrator and the surface of a material to be cleaned and ultrasonically vibrating the material through the layer. CONSTITUTION:The ultrasonic vibrator 1 is positioned at a minute distance from the surface 7 of a material 6 to be cleaned. The medium feed pipe 3 is arranged close to the vibrator 1. A medium 5 is discharged from the feed pipe 3 to form the layer of the medium 5 between the vibrating surface 2 of the vibrator 1 and the surface 7 of the material 6, and the material 6 is ultrasonically vibrated through the layer. Since a cleaning tank is not needed, the performance of the ultrasonic wave to be impressed is not affected by the shape and capacity of the cleaning tank, density of the medium, etc., and ultrasonic cleaning is stably carried out at all times. Consequently, the amt. of the medium to be used is economically reduced, and the ultrasonic output can also be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an ultrasonic cleaning machine, and more particularly to an ultrasonic cleaning machine that does not require a cleaning tank.

(Prior technology) Ultrasonic cleaning machines apply ultrasonic waves to the object to be cleaned through a medium to remove particles (dirt) attached to the surface of the object to be cleaned, and are widely used in the manufacturing process of precision parts. has been done. This conventional ultrasonic cleaning machine uses a method in which a medium is stored in a cleaning tank and ultrasonic waves are applied to the medium.

(Problem to be solved B) However, in this conventional ultrasonic cleaning machine, the ultrasonic performance is affected by the shape and capacity of the cleaning tank that stores the medium, the density (specific gravity) of the medium, etc., and its design and adjustment are extremely difficult. It was difficult. Also, since the cleaning tank must be filled with medium, it is inevitable that the amount of medium used will increase.
- There was also the problem of re-adhesion of particles that had been peeled off. The purpose of this invention is to eliminate the above-mentioned drawbacks of ultrasonic cleaning machines, and it is possible to perform ultrasonic cleaning without the need for a cleaning tank, and there is no need to worry about particles re-adhering. The aim is to provide washing machines.

(Means for Solving the Problems) The present invention includes an ultrasonic vibrating body positioned with a slight gap between the cleaning surface of an object to be cleaned, and a medium supply disposed near the ultrasonic vibrating body. The medium is discharged from the medium supply pipe to form a layer of the medium between the vibration surface of the ultrasonic vibrator and the cleaning surface of the object to be cleaned, and the ultrasonic wave is applied to the object to be cleaned through this layer. The above-mentioned problem is attempted to be solved by configuring an ultrasonic cleaner to apply sonic vibrations.

(Function) When a medium such as water or a solvent is discharged from the medium supply pipe, the medium forms a layer between the cleaning surface of the object to be cleaned and the vibration surface of the ultrasonic vibrator. Then, ultrasonic vibrations from the ultrasonic vibrator are applied to the object to be cleaned through this layer, and ultrasonic cleaning is performed. The medium supply pipe is configured to move following the movement of the ultrasonic vibrator, and a layer of medium is always formed between the ultrasonic vibrator and the cleaning surface. Therefore, it is possible to perform cleaning work continuously while moving the ultrasonic vibrator. Further, the problem of removing air bubbles from ultrasonic vibrations on the cleaning surface can be solved.

(Embodiment) FIG. 1 is a sectional view of an embodiment of an ultrasonic cleaning machine according to the present invention. In the figure, reference numeral 1 denotes a plate-shaped ultrasonic vibrator, the lower surface of which serves as a vibrating surface 2.

Reference numeral 3 denotes a medium supply pipe, and this medium supply pipe 3 is provided with a nozzle 4, which spouts a medium 5 toward the vibrating surface 2, thereby causing a collision between the vibrating surface 2 and the cleaning surface 7 of the object 6 to be cleaned. A layer of medium between 5
It seems to form.

As the medium 5, city water, pure water, alcohol, solvent, etc. can be used.

Note that 8 in the figure represents particles attached to the cleaning surface 7. The frequency of the ultrasonic vibration applied from the vibrating surface 2 to the cleaning surface 7 varies depending on the type of particles to be cleaned, but is approximately 28 Hz to 6.8 MHz. In addition, as shown in the figure, the vibration surface 2 is set at a predetermined angle θ with respect to the cleaning surface 7 to prevent particle stagnation, eliminate uneven cleaning, eliminate uneven cleaning, and use ultrasonic waves. Efforts are being made to remove the air bubbles that occur. This angle θ is determined between 0 degrees and several tens of degrees depending on various conditions and uses. Note that 9 in the figure is a skirt provided at the edge of the vibrating surface 2 to prevent the medium from flowing out.

In this embodiment, the medium supply pipe 3 has one nozzle 4, but a plurality of nozzles 4 may be provided as in the embodiment shown in FIGS. 2 and 3. In this case, a large area Cleaning can be performed efficiently.

Furthermore, if a vibrating surface 2' with a small area is used as in the embodiment shown in FIGS. 4 and 5, precision cleaning of a small area is also possible.

(Effects of the Invention) This invention has the above configuration and does not require a cleaning tank, so the performance of the applied ultrasonic waves depends on the shape and capacity of the cleaning tank, the density (specific gravity) of the medium, etc. This enables stable ultrasonic cleaning at all times. In addition, the amount of medium used is extremely small, making it economical. Furthermore, the distance between the vibrating surface of the ultrasonic vibrator and the cleaning surface of the object to be cleaned is short, so that the ultrasonic output can be small.

Also, since the medium is constantly flowing out from the medium supply pipe, -
Particles that have been peeled off will not re-adhere to the object to be cleaned. It has excellent effects such as, and is extremely practical.

[Brief explanation of drawings]

FIG. 1 is a sectional view of one embodiment of an ultrasonic cleaner according to the present invention, FIG. 2 is a perspective view of another embodiment, and FIG. 3 is a sectional view thereof. Moreover, FIGS. 4 and 5 are perspective views of still other embodiments. DESCRIPTION OF SYMBOLS 1... Ultrasonic vibrator, 2... Vibration surface, 3... Medium supply pipe, 4... Nozzle, 5... Medium, 6... Object to be cleaned, 7... Cleaning surface , 8... particles, 9...
·skirt. Figure 3 Figure 4 Figure 5

Claims (1)

[Claims] It consists of an ultrasonic vibrator positioned with a slight gap from the cleaning surface of the object to be cleaned, and a medium supply pipe placed near the ultrasonic vibrator, and a medium is discharged from the medium supply pipe. A layer of a medium is formed between the vibrating surface of the ultrasonic vibrating body and the cleaning surface of the object to be cleaned, and ultrasonic vibrations are applied to the object to be cleaned through this layer. Ultrasonic cleaning machine.