JPH0632234Y2 - Ultrasonic cleaning equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention is an ultrasonic cleaning apparatus suitable for cleaning a screen plate for printing, etc., in which the number of vibrators is adjusted without impairing the cleaning effect. The present invention relates to an ultrasonic cleaning device that is reduced in cost.

<Prior Art> A conventional ultrasonic cleaning apparatus for cleaning a long-sized object to be cleaned such as a screen plate has a cleaning tank 4 containing a cleaning liquid for cleaning and an object to be cleaned 1 as shown in FIG. And a vertical mechanism 6 for vertically moving the object to be cleaned 1 with respect to the cleaning tank 4 by vertically moving the frame 5. The ultrasonic transducers 2 are arranged on the transducer plate 3 in the upper and lower two stages, and in a zigzag manner so that the lower transducers are located below the intermediate position between the upper transducers.

By arranging the ultrasonic transducers 2 as described above, when the object to be cleaned 1 moves up and down the cleaning tank 4, a portion having an insufficient cleaning effect occurring between the transducers on the upper stage and the transducers on the lower stage is By supplementing with the vibrator, a sufficient cleaning effect can be obtained over the entire object to be cleaned.

<Problems to be solved by the invention> However, according to the conventional configuration, since the transducers are arranged in the upper and lower two stages, the number thereof is large, and accordingly, the output of the ultrasonic transmitter is also large and the cost is high. There was a point.

<Means for Solving the Problems> The present invention has been devised to solve the above-mentioned problems, and includes a cleaning tank containing a cleaning liquid, and a cleaning tank which is attached to the cleaning tank via a moving mechanism to clean an object to be cleaned. What is claimed is: 1. An ultrasonic cleaning device, comprising: a holding frame; and a vibration plate provided on a side wall of the cleaning tank, in which a plurality of ultrasonic vibrators are arranged. The ultrasonic transducers are arranged at intervals, and the moving mechanism moves the object to be cleaned in the vertical direction as well as in the horizontal direction to position the ultrasonic transducer in the horizontal direction when the object to be cleaned is moved up and down. The ultrasonic cleaning apparatus is characterized by displacing a by a / 2.

<Operation> Since the ultrasonic transducers are arranged in a line in the horizontal direction at a distance a from each other, when the object to be cleaned descends, the ultrasonic transducers move to an intermediate position between the transducers (a distance of 1 / 2a). Although the part where the sound wave is not sufficiently irradiated remains, when the object to be cleaned rises, the horizontal position of the transducer is displaced by 1 / 2a, and at this time, the part where the ultrasonic wave is not sufficiently irradiated is vibrated. Since the child is located, it is possible to irradiate the portion with ultrasonic waves.

<Embodiment> An embodiment of the present invention will be described in detail below with reference to the drawings.

FIGS. 1 (a) and 1 (b) are views showing the main part of the ultrasonic cleaning apparatus according to the present invention, respectively when the object to be cleaned 1 is descending and ascending. The cleaning tank 4 and the cabinet are omitted.

The ultrasonic transducers 2 are arranged in a row on the vibrating plate 3 so as to be separated from each other by a center distance a, and are provided on the side wall of the cleaning tank so as to face the object to be cleaned 1. The object to be cleaned 1 is held by a frame 5, and the frame 5 can be moved not only up and down but also left and right by a moving mechanism 7.

Generally, the intensity of ultrasonic waves emitted by an ultrasonic transducer is
It attenuates as the distance from the oscillator increases. Therefore, when the transducers 2 are arranged in a line as in this example, the intensity of ultrasonic waves is weak at the intermediate position between them, that is, in the vicinity of a distance of 1 / 2a. Therefore, as shown in FIG.
When dipped, the part of the article to be cleaned 1 facing the intermediate position is not sufficiently cleaned.

The feature of the present invention is that when the object to be cleaned 1 has been lowered by the moving mechanism 7, the moving mechanism 7 moves to the right (or left) by a distance 1 / 2a.
That is, it is configured to move horizontally only and then rise as shown in FIG. 1 (b). Therefore, the position on the article to be cleaned 1 facing the center of the vibrator is displaced by a distance 1 / 2a from the position where the center was facing when descending.

That is, when rising, the center of the oscillator with strong ultrasonic waves
This coincides with a portion that was not sufficiently generated when descending, and as a result, the object to be cleaned 1 can be irradiated with ultrasonic waves substantially uniformly over the whole. When the cleaning target 1 has finished rising, the moving mechanism 7 moves to the left (or right) by the distance 1 /.
It moves by 2a, returns to the initial position, and repeats the above-mentioned operation as necessary.

In this embodiment, the moving mechanism 7 is used to displace the object to be cleaned 1 left and right, but the structure 1 displaces the vibrator 2 and the diaphragm 3 left and right only by moving the object 1 to be cleaned up and down. It is needless to say that the same effect can be obtained by using the above, or by using a configuration in which both the object to be cleaned 1 and the vibrator 2 and the diaphragm 3 are displaced.

<Effect> Therefore, a uniform cleaning effect can be obtained with a smaller number of vibrators than the conventional one, and the output of the ultrasonic oscillator may be small, so that the cost can be reduced.

[Brief description of drawings]

1 (a) and 1 (b) are front views showing the main part of an ultrasonic cleaning apparatus according to the present invention, FIG. 2 is a view showing a conventional ultrasonic cleaning apparatus, and FIG. (b) is a side sectional view thereof. 1 ... Object to be cleaned, 2 ... Ultrasonic transducer, 3 ... Vibration plate,
7 ... Moving mechanism

Claims (1)

[Scope of utility model registration request] 1. A cleaning tank containing a cleaning liquid, and a frame which is attached to the cleaning tank via a moving mechanism and holds an object to be cleaned.
An ultrasonic cleaning device provided on a side wall of the cleaning tank, comprising: a vibration plate in which a plurality of ultrasonic vibrators are arranged, wherein ultrasonic vibrators are arranged in a row at a distance a in the vibration plate. The moving mechanism moves the object to be cleaned in the vertical direction as well as in the horizontal direction so that the horizontal position of the ultrasonic transducer is a / 2 when the object to be cleaned is moved up and down. An ultrasonic cleaning device characterized by being displaced.