JPH0824809A - Ultrasonic cleaning apparatus - Google Patents

Abstract

PURPOSE:To prevent the manufacturing cost and electric power consumption of an ultrasonic cleaning apparatus from rising even in the case in which the apparatus is composed to be of a large size and at the same time make the apparatus possible to carry out cleaning efficiently while preventing the occur rence of a noise trouble. CONSTITUTION:A long work (an object article for cleaning) 1 is supported by the right and left work supporting tools 2a, 2b and immersed in a cleaning liquid in a rectangular cleaning tank 3 and moved up and down reciprocally by a supporting tool elevating apparatus 4. A vibrator base 5 in the tank positioned on the side lower than both work supporting tools 2a, 2b is moved reciprocally in the longitudinal direction (in the right and left directions) of the rectangular cleaning tank 3. The right and left work supporting tools 2a, 2b are provided with a plurality of work receiving parts 7a, 7b in the directions (in the back and forth directions) at a right angle to the longitudinal direction (the right and left directions) and also the vibrator base 5 is provided with a plurality of ultrasonic vibrators 8 in the same direction (in the back and forth directions).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ultrasonic cleaning apparatus suitable for cleaning a long work (object to be cleaned).

[0002]

2. Description of the Related Art Conventionally, an ultrasonic cleaning device has been widely put to practical use for cleaning various works such as mechanical parts and electronic parts. This device is equipped with a cleaning tank to which a cleaning liquid is supplied and a cleaning tank. With an ultrasonic vibrator mounted inside, in which the work is immersed in the cleaning liquid in the tank, cavitation is generated in the cleaning liquid by the ultrasonic vibrator, and cleaning is performed by utilizing this cavitation action. Is.

[0003]

However, in this cleaning device, when the cleaning tank is provided in a large size because the ultrasonic vibrator is installed in the cleaning tank, the ultrasonic vibrator correspondingly corresponds to this. The number of mounted devices has to be increased, which not only increases the device cost, but also increases power consumption and tends to cause noise problems. In particular, it was remarkable in the case of a large-sized apparatus capable of simultaneously cleaning a plurality of long works (objects to be cleaned).

In view of such drawbacks, the present invention has made earnest studies to solve them, and as a result, has a plurality of work receivers mounted at predetermined intervals in a direction orthogonal to the longitudinal direction of the rectangular cleaning tank, and , A vertical movement of a pair of workpiece supports arranged in the longitudinal direction of the cleaning tank so as to face each other, and a plurality of work supports positioned below the supports and extending in a direction orthogonal to the longitudinal direction of the cleaning tank. It is possible to prevent the increase of the device cost and the power consumption even if the device is configured to be a large-sized device by configuring the vibrator base equipped with the ultrasonic vibrator described above to move in the longitudinal direction. It was found that the cavitation effect can be effectively imparted to the work and good cleaning can be performed while preventing the noise problem.

[0005]

That is, an ultrasonic cleaning apparatus according to the present invention comprises a rectangular cleaning tank to which a cleaning liquid is supplied,
A pair of work supports having a plurality of work receivers mounted at predetermined intervals in a direction orthogonal to the longitudinal direction of the cleaning tank and arranged at predetermined intervals in the longitudinal direction of the cleaning tank so as to face each other. A tool, a support tool elevating device capable of vertically moving the pair of workpiece supports together with the cleaning tank so as to move up and down together in the cleaning solution in the tank, and the inside of the tank. Located in a tank below the work support moved into the cleaning liquid,
Also, a vibrator base in which a plurality of ultrasonic vibrators are mounted at predetermined intervals in a direction orthogonal to the longitudinal direction of the cleaning tank, and a vibrator moving device that reciprocates the vibrator base in the longitudinal direction of the cleaning tank. It is characterized by having.

The work receiver is composed of a free roller and a drive roller, and the drive roller is provided with a pinion which is rotated by being engaged with a fixed rack when the work support is moved up and down. Is preferred.

[0007]

In FIG. 1, a long cylindrical work 1 to be cleaned is supported by the left and right work supports 2a and 2b and immersed in the cleaning liquid in the rectangular cleaning tank 3, so that both work supports 2a and 2b are supported. 2b are vertically reciprocated together in the cleaning liquid by the support lifting device 4. Also, both work support tools 2
The vibrator base 5 located in the tank below a and 2b is reciprocated in the longitudinal direction (left-right direction) of the rectangular cleaning tank 3 by the vibrator moving device 6.

The work supports 2a and 2b are provided with eight work receivers 7a and 7b (see FIG. 3) in a direction (front-back direction) orthogonal to the longitudinal direction (horizontal direction) of the rectangular cleaning tank 3. In addition, the vibrator base 5 is equipped with four ultrasonic vibrators 8 (or ultrasonic vibrators) in the same direction (front-back direction).

Therefore, for a group of eight long workpieces,
A cavitation effect can be imparted through the four ultrasonic vibrators 8 groups, and moreover, the work 1 group and the ultrasonic vibrator 8 groups can be made to approach and separate from each other to effectively impart the cavitation effect. Therefore, even if the device is configured in a large size, it is possible to prevent an increase in device cost and power consumption, and to perform good cleaning while preventing the occurrence of noise problems.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment according to the present invention will be described below. FIG. 1 is a front view and FIG. 2 is a plan view of this drawing.
3 and FIG. 3 which is a Z arrow view of FIG.
Has a rectangular shape in a plan view, that is, it is provided longer in the direction of arrow A in the drawing (hereinafter, this direction is referred to as the longitudinal direction) than in the front-back direction orthogonal to the direction of arrow A (the left-right direction) in the drawing and is new. A supply port 10 for supplying the cleaning liquid, a discharge port 11 for extracting the cleaning liquid used and contaminated, and the like are mounted.

Further, the apparatus frame 11 mounted so as to straddle the cleaning tank 3 in the longitudinal direction has the left and right legs 12
The upper frame 13 is attached to the upper ends of the b and 12a, and the vertical frames 14a and 14 are attached to the upper frame 13.
b, the frame 13,
The support elevating device 4 and the vibrator moving device 6 are attached via 14a and 14b.

That is, the support moving device 4 includes a shaft 16 rotatably supported by bearings 15a and 15b mounted on the vertical frames 14a and 14b, and a driving device 17 mounted on the upper frame 13. The shaft coupling 18 that connects the output shaft of the device 17 to the shaft 16, the pinions 19a and 19b mounted on the shaft 16, and the slide guide rail mechanisms 20a and 20b, the vertical frames 14a and 14
Arms 21a, 21 mounted on b so as to be able to move up and down
b and the rack 2 attached to the arms 21a and 21b
2a, 22b, three photoelectric tube type sensors 23 (see FIG. 2) mounted at predetermined positions on the upper end, middle portion and lower end of the vertical frame 14b, and a light blocking piece 24 mounted at predetermined positions on the arm 21b. It consists of and.

Therefore, the arms 21a and 21b can be moved up and down by rotating the shaft 16 in the forward and reverse directions by the driving device 17, and at that time, by the light shielding piece 24 which is moved up and down together with the arm 21b, the vertical movement is achieved. When the light rays detected by the photoelectric tube type sensors 23 mounted at predetermined positions on the middle and lower ends of the frame 14b are blocked, the rotation direction of the output shaft of the motor 17 is controlled in the opposite direction based on the signal. .

Therefore, the work supports 2a and 2b mounted on the lower ends of the arms 21a and 21b are attached to the rectangular cleaning tank 3 respectively.
It can be reciprocated up and down in the cleaning liquid inside, and when the light rays detected by the photoelectric tube type sensor 23 mounted at a predetermined position on the upper end of the vertical frame 14b are blocked,
Based on the signal, the rotation of the output shaft of the prime mover 17 is stopped, whereby the work supports 2a and 2b can be moved slightly above the upper end of the rectangular cleaning tank 3.

The vertical reciprocation in the cleaning liquid in the rectangular cleaning tank 3 is performed during the cleaning of the work, and
The movement of the rectangular cleaning tank 3 slightly above the upper end is carried out when the work is taken in and out of the tank. Further, the work support tools 2a and 2b are constructed by mounting eight work receivers 7a and 7b at predetermined intervals on brackets 25a and 25b (see FIG. 3) mounted on the lower ends of the arms 21a and 21b. However, the receivers 7a and 7b are formed in a semicircular shape.

Therefore, both ends 7a and 7b can support the end portion in the longitudinal axis direction of the cylindrical elongated work 1 to be cleaned, and the work 1 thus supported.
Owing to its own weight, it does not separate from both receivers 7a and 7b even when it is immersed in the cleaning liquid. Note that FIG. 3 shows a state in which the arms 21a and 21b are moved downward as much as possible so that they are brought close to the upper surface of the upper frame 13.

Next, the vibrator moving device 6 includes a rack 30 mounted on the upper frame 13, a pinion 32 mounted on an output shaft of a driving device 31, and one movable bracket on which the driving device 31 is mounted. 33 (see FIG. 3), the gate-shaped bracket 35 suspended by the bracket 33 and the other movable bracket 34, and mounted on the upper frame 13 at predetermined positions of the right end portion, the intermediate portion, and the left end portion. It is composed of three photoelectric tube type sensors 36 (see FIG. 2) and a light shielding piece 37 attached to an intermediate portion of the movable bracket 34. The movable brackets 33 and 34 are connected to the upper frame 1 via the slide guide rail mechanisms 38a and 38b.
3 so that it can be moved, that is, the upper frame 1
3 is installed so that it can move in the extending direction (longitudinal direction of the rectangular cleaning tank 3).

Therefore, the movable brackets 33, 34 and the gate-shaped bracket 35 can be reciprocated in the longitudinal direction of the rectangular cleaning tank 3 by rotating the output shaft of the prime mover 31 forward and backward, and at that time. When the light-shielding piece 37 that is reciprocally moved in the horizontal direction together with the movable bracket 34 shields the light rays detected by the photoelectric tube type sensors 36 mounted at the predetermined positions of the right end portion and the left end portion of the upper frame 13, Based on the signal, the rotation direction of the output shaft of the prime mover 32 is controlled in the reverse direction. Therefore, the vibrator base 5 mounted on the lower end of the gate-shaped bracket 35 so as to be positioned in the tank below the work support tools 2a, 2b is provided with one end in the longitudinal direction of the rectangular cleaning tank 3 and the other end opposite thereto. It can be reciprocated between.

When the light beam detected by the photoelectric tube type sensor 36 mounted at a predetermined position in the middle portion of the upper frame 13 is blocked, the rotation of the output shaft of the motor 32 is stopped based on the signal, and Thus, the vibrator base 5 to which the ultrasonic vibrator 8 is attached can be moved to the middle portion in the longitudinal direction of the rectangular cleaning tank 3. The reciprocating motion between one end of the rectangular cleaning tank 3 in the longitudinal direction and the opposite end is performed during cleaning of the work, and the movement of the rectangular cleaning tank 3 at the intermediate portion in the longitudinal direction is stopped with respect to the tank. This is done when the work is taken in and out.

Thus, according to the present cleaning apparatus, with the empty work supports 2a, 2b moved slightly above the upper end of the rectangular cleaning tank 3, the work receiving devices 7a, 7b are operated by using an appropriate cargo handling device. To support the work 1 and then switch on a control panel (not shown) to drive the motors 17, 3.
1 and two ultrasonic oscillators 40a, 4 mounted on each of the upper ends of the vertical frames 14a, 4b.
Activate 0b.

Then, the ultrasonic vibrator 8 is actuated, and the work supports 2a and 2b are moved downward together, so that the work receivers 7a and 7b are moved downward, and the work 1 group supported thereon is rectangular. It is immersed in the cleaning liquid in the cleaning tank 3.

Thereafter, the cleaning solution is vertically reciprocated for a predetermined time. In parallel with this, the gate-shaped bracket 35 is reciprocated in the longitudinal direction of the rectangular cleaning tank 3. Therefore, together with this, the vibrator base 5 is reciprocated in the same direction. The vibrator base 5 is reciprocated between one end in the longitudinal direction of the rectangular cleaning tank 3 and the other end opposite thereto.

Therefore, the cavitation effect of the four ultrasonic oscillators 8 mounted on the vibrator base 5 is
It is possible to impart the eight long workpieces 1 over the entire length, and the workpieces 1 can be moved toward and away from the ultrasonic vibrator 8 so that the cavitation effect can be effectively exerted. Therefore, as a synergistic effect of these, Even if it is configured as a large-sized device, it is possible to prevent an increase in device cost and power consumption, and to perform good cleaning while preventing the occurrence of noise problems.

Although one embodiment of the present invention has been described above, in the present invention, the work receiver of the work support is
As shown in FIGS. 4 to 6, the drive roller 4 includes a free roller 42 and a drive roller 43.
3 may be provided in a mode in which the pinion 45 that is engaged with the fixed rack 48 and rotated when the work support is moved up and down is mounted.

By providing in such a mode, it is possible to rotate the work during cleaning and to uniformly impart the cavitation action from multiple directions, and thus to further enhance the cleaning effect.

FIG. 4 is a front view, FIG. 5 is a right side view of FIG. 4, and FIG. 6 is a view taken in the direction of the arrow Y. The work support tools 2c and 2d have arms 21a, on which racks 22a and 22b are mounted. Two
It is attached to the lower end of 1b (see FIGS. 1 to 3). That is, in the work support tools 2c and 2d, the free roller 42 and the drive roller 43, which are rotatably mounted on the bracket 41, constitute the work receiver 44, and the drive roller 4
The pinion 45 is attached to 3. The bracket 4
1 includes arms 21 a and 21 via a connecting bracket 46.
b.

On the other hand, the legs 12a, 12 of the device frame 11
A rack bracket 47 is attached to b, two fixed racks 48 are suspended in each of them, and the above-mentioned pinion 45 is meshed with the rack 48. The work receiver 44 composed of the free roller 42 and the drive roller 43 is similarly attached to the right side portion omitted in FIG. 5, and thus eight work receivers 44 are formed.

Thus, by vertically reciprocating the work supports 2c and 2d in the cleaning liquid in the rectangular cleaning tank 3, the work 1 supported by the work receiver 44 can be rotated. The cavitation effect can be uniformly imparted from multiple directions, and the cleaning effect can be further enhanced.

Although not shown, the rectangular cleaning tank 3 is equipped with a device for regenerating the cleaning liquid contaminated (or deteriorated) by use to circulate a new cleaning liquid. It is composed of a thread film, a degassing film, a vacuum pump, a heat exchanger, and the like. Therefore, a cleaning liquid having a temperature and a liquid quality suitable for cleaning can be circulated, but as the cleaning liquid, a necessary one can be appropriately selected according to the cleaning conditions.

[0030]

As described above, according to the present invention, a cavitation effect can be imparted to a plurality of long work groups through a small number of ultrasonic vibrator groups, and the work groups and ultrasonic waves can be applied. It is possible to effectively cause a cavitation effect by moving the vibrator group and the vibrator group away from each other. Therefore, even when the vibration device group is configured in a large device, it is possible to prevent increase in device cost and power consumption, and noise. It is possible to obtain an ultrasonic cleaning device that can perform good cleaning while preventing the occurrence of problems.

[Brief description of drawings]

FIG. 1 is a front view of an ultrasonic cleaning device.

FIG. 2 is a plan view of FIG.

3 is a Z arrow view of FIG. 1. FIG.

FIG. 4 is a front view showing another aspect of the work support tool.

FIG. 5 is a right side view of FIG.

FIG. 6 is a view on arrow Y of FIG.

[Explanation of symbols]

 1 Work 2a to 2d Work Support 3 Rectangular Cleaning Tank 4 Support Lifting Device 5 Vibrator Base 6 Vibrator Moving Device 7a, 7b Work Receiving 8 Ultrasonic Vibrator 11 Device Frame 42 Free Roller 43 Drive Roller 44 Work Receiving 45 Pinion 48 fixed racks

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Joji Aoki Toray Engineering Co., Ltd. 4845 Mishima City, Shizuoka Prefecture

Claims (2)

[Claims] 1. A rectangular cleaning tank to which a cleaning liquid is supplied, and a plurality of work receivers mounted at predetermined intervals in a direction orthogonal to the longitudinal direction of the cleaning tank, and the cleaning so as to face each other. A pair of work supports arranged at predetermined intervals in the longitudinal direction of the tank and the pair of work supports can be moved up and down together so as to be taken in and out of the cleaning tank, and together with the cleaning solution in the tank. And a support elevating device capable of reciprocating vertically, and a plurality of superpositions located in the tank below the work support moved into the cleaning solution in the tank and in a direction orthogonal to the longitudinal direction of the cleaning tank. An ultrasonic cleaning apparatus comprising: a vibrator base having sonic vibrators mounted at predetermined intervals; and a vibrator moving device that reciprocates the vibrator base in a longitudinal direction of the cleaning tank. 2. The ultrasonic cleaning apparatus according to claim 1, wherein the work receiver is composed of a free roller and a drive roller, and the drive roller meshes with a fixed rack when the work support moves up and down. An ultrasonic cleaning device, which is equipped with a pinion that is rotated by being rotated.