JPH0685075U - Ultrasonic cleaning equipment - Google Patents

Abstract

(57) [Summary] [Purpose] To obtain an ultrasonic cleaning device without uneven cleaning of the object to be cleaned. [Structure] Cleaning tank 1 and vibrating surface 4 at the bottom of cleaning tank 1
The first cleaning tank 2 and the second cleaning tank 3 in which the ultrasonic vibrator 4 having a is provided and the cleaning tank 1 is provided with the ultrasonic vibrator 4 respectively.
Further, the object 6 to be cleaned is held at a fixed position above the ultrasonic transducer 4, and a cleaning liquid 7 such as water or detergent is put in the cleaning tank 1 so as to bury the object 6 to be cleaned. In an ultrasonic cleaning device for cleaning an object to be cleaned 6 by ultrasonic vibration generated from the ultrasonic vibrator 4, a vibrating surface 4 of the ultrasonic vibrator 4 is used.
The positions of a are provided so as to be different from each other by ¼ wavelength of the ultrasonic standing wave or an odd multiple thereof, and the maximum amplitude of the standing wave is ¼ wavelength in the first cleaning tank 2 and the second cleaning tank 3. The deviation, that is, the node of the standing wave that causes uneven cleaning in the first cleaning tank 2 and the maximum amplitude (antinode) of the standing wave with large vibration energy in the second cleaning tank 3 complement each other, and the cleaning of the cleaning target 6 is performed. Becomes uniform.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an ultrasonic cleaning device that cleans mechanical oil, smut, chips, etc. attached to metal parts during mechanical processing such as pressing and cutting of metal parts.

[0002]

[Prior art]

 Conventionally, strong vibration energy due to ultrasonic vibration is used to clean strong dirt during mechanical processing such as press working and cutting of metal parts. There is a drawback that uneven cleaning occurs due to the presence.

Therefore, an ultrasonic oscillator that generates ultrasonic waves of different frequencies is provided in the cleaning tank, and the ultrasonic waves are sequentially switched at predetermined time intervals to oscillate to improve cleaning unevenness due to standing waves. Has been proposed (see, for example, Japanese Patent Publication No. 62-54557).

[0004]

[Problems to be solved by the device]

 However, the above-mentioned conventional technique requires a plurality of ultrasonic transducers in one cleaning tank, which is expensive in terms of cost. In particular, when the amount of the object to be cleaned is large and the lead time is short, the cleaning process is performed several times, which requires a plurality of cleaning tanks, resulting in a more expensive device.

The present invention is intended to solve the above problems, and it is an object of the present invention to provide an inexpensive ultrasonic cleaning device that has uniform cleaning effect without uneven cleaning of the object to be cleaned. is there.

[0006]

[Means for Solving the Problems]

 The present invention has been made in order to solve the above-mentioned problems. A cleaning tank and an ultrasonic vibrator having a vibrating surface at the bottom of the cleaning tank are provided, and an object to be cleaned is placed at a fixed position above the ultrasonic vibrator. In an ultrasonic cleaning device that holds the cleaning object, puts a cleaning solution such as water or detergent into the cleaning tank so that the cleaning object is buried, and cleans the cleaning object by the ultrasonic vibration generated from the ultrasonic vibrator. , The cleaning tank is divided into a first cleaning tank and a second cleaning tank each equipped with an ultrasonic transducer, and the installation position of the vibration surface of each ultrasonic transducer of the first cleaning tank and the second cleaning tank is It is assumed that they are provided with a difference of ¼ wavelength of the standing wave of ultrasonic waves or an odd multiple thereof.

[0007]

[Action]

 The cleaning tank having the above configuration is divided into a first cleaning tank and a second cleaning tank each provided with an ultrasonic vibrator, and the vibration surfaces of the ultrasonic vibrators of the first cleaning tank and the second cleaning tank are removed. Since the mounting position is set to be different by 1/4 wavelength of the ultrasonic standing wave or an odd multiple thereof, the maximum vibration of the standing wave due to the mutual relationship between the first cleaning tank and the second cleaning tank. By utilizing the fact that the width shifts by 1/4 wavelength, the object to be cleaned is first put in either the first cleaning tank or the second cleaning tank and then cleaned, and then the other second cleaning tank or the first cleaning tank. By exchanging with a tank, that is, the node of the standing wave that becomes the cleaning mura in the first cleaning tank or the second cleaning tank and the maximum amplitude of the standing wave with large vibration energy in the second cleaning tank or the first cleaning tank (antinode) ) Complement each other, and the cleaning of the object to be cleaned becomes uniform.

[0008]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS.

Reference numeral 1 denotes a cleaning tank, and the cleaning tank 1 is divided into a first cleaning tank 2 and a second cleaning tank 3. Reference numeral 4 denotes an ultrasonic oscillator having a vibrating surface 4a for oscillating ultrasonic waves, which is fixed to the bottom of the first cleaning tank 2 and has a standing wave in the second cleaning tank 3 from the vibrating surface 4a of the first cleaning tank 2. Is fixed so as to be the vibrating surface 4a at a position lower by a quarter wavelength or an odd multiple thereof, and each is driven by the output of an ultrasonic oscillator (not shown). Reference numeral 5 denotes a placing net which is provided at a distance of ½ wavelength from the vibrating surface 4a of the ultrasonic oscillator 4 of the first cleaning tank 2 and places and holds the object to be cleaned 6 in a fixed position. Similarly to the distance from the bottom of one cleaning tank 2, a loading net 5 is also provided in the second cleaning tank 3 so as to hold the object 6 to be cleaned in a fixed position. 7 is a cleaning liquid such as water or detergent, and the liquid surface 7a of the second cleaning tank 3 is set lower than the liquid surface 7a of the first cleaning tank 2 by a quarter wavelength of the standing wave or an odd multiple thereof. There is.

The operation of this embodiment having the above configuration will be described.

When the object 6 to be cleaned is placed on the placing net 5 which holds the fixed position of the first cleaning tank 2 and the ultrasonic oscillator 4 is driven by the output of the ultrasonic oscillator (not shown), vibration occurs. A standing wave of ultrasonic waves is generated from the surface 4a, strong cavitation is obtained, and the object 6 to be cleaned is cleaned. However, as shown in Fig. 2, the vibration energy of the standing wave is large at the position of the maximum amplitude of the ultrasonic wave, that is, at a liquid depth that is an odd multiple of 1/4 wavelength, and the cleaning effect becomes maximum, and the integer of 1/2 wavelength is used. Since cleaning unevenness occurs around twice, after cleaning the first cleaning tank 2, the object 6 to be cleaned is taken out, transferred to the second cleaning tank 3, and the loading net of the first cleaning tank 2 is transferred. When placed on the same placement network 5 as the fixed position of 5, the standing wave of the ultrasonic wave from the vibrating surface 4a of the ultrasonic oscillator 4 is deviated by 1/4 wavelength and uneven cleaning occurs in the first cleaning tank 2. The cavitation in which the position of the node of the standing wave is displaced to the antinode of the standing wave is obtained, and the portion having the uneven cleaning in the first cleaning tank 2 is cleaned and the object 6 to be cleaned is uniformly cleaned.

Needless to say, the same cleaning action is performed in a procedure in which the object 6 to be cleaned is first placed in the second cleaning tank 3 and then placed in the first cleaning tank 2.

[0013]

[Effect of device]

 According to the present invention, the cleaning tank is divided into a first cleaning tank and a second cleaning tank each provided with an ultrasonic transducer, and the ultrasonic vibrations of the first cleaning tank and the second cleaning tank are divided. The object to be cleaned is held in a fixed position on the upper part of the child, and the position of the vibrating surface of the ultrasonic transducer is set to be different from each other by ¼ wavelength of the standing wave of ultrasonic waves or an odd multiple thereof. Thus, it is possible to provide an inexpensive ultrasonic cleaning device in which the cleaning of the object to be cleaned is uniform and there is no need to provide a plurality of ultrasonic vibrators per cleaning tank.

[Brief description of drawings]

FIG. 1 is a schematic sectional view of an ultrasonic cleaning apparatus according to an embodiment of the present invention.

FIG. 2 is a relationship diagram showing a relationship between a standing wave of ultrasonic waves and a cleaning effect in the ultrasonic cleaning apparatus according to the embodiment of the present invention.

[Explanation of symbols]

 1 Cleaning Tank 2 First Cleaning Tank 3 Second Cleaning Tank 4 Ultrasonic Transducer 4a Vibrating Surface 6 Cleaning Object 7 Cleaning Liquid 7a Liquid Level

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Nobuhiro Nogami 1 3-3 Shinjuyoji, Kashiwa-shi, Chiba Inside Hiritsu Hometec Co., Ltd.

Claims (1)

[Scope of utility model registration request] 1. A cleaning tank (1), an ultrasonic vibrator (4) having a vibrating surface (4a) at the bottom of the cleaning tank (1), and a fixed position above the ultrasonic vibrator (4). The object to be cleaned (6) is held in and the cleaning liquid (7) such as water or detergent is put into the cleaning tank (1) so as to bury the object to be cleaned (6),
An ultrasonic cleaning device for cleaning an object to be cleaned (6) by ultrasonic vibration generated from the ultrasonic vibrator (4), wherein the cleaning tank (1) is provided with an ultrasonic vibrator (4). The vibrating surface (4a) of the ultrasonic transducer (4) of each of the first cleaning tank (2) and the second cleaning tank (3) is divided into one cleaning tank (2) and the second cleaning tank (3). The ultrasonic cleaning apparatus is characterized in that the mounting positions are different by ¼ wavelength of the standing wave of ultrasonic waves or an odd multiple thereof.