JPH0647360A - Ultrasonic washing apparatus - Google Patents

Abstract

PURPOSE:To apply uniform washing action on an article to be washed by eliminating the washing impossible part due to an air sump by supporting the rotary shafts provided to the left and right of a washing basket in a freely rotatable manner by the bearing parts provided to the left and right walls of a washing water tank having an ultrasonic oscillation part at the lower part thereof. CONSTITUTION:When a flask or a test tube is washed, an article 16 to be washed is put in the washing basket 4 supported in a washing water tank 1 in a freely rotatable manner to close the tank 1 by a lid and the washing basket 4 is slowly rotated while ultrasonic waves are oscillated from the ultrasonic oscillation part 3. When the mouth of the hollow article 16 is turned upward by the rotation of the washing basket 4 in the washing water tank 1, the air in the air sump 17 of the article 16 to be washed is vented by buoyancy and the air sump is filled with water and, therefore, the entire inner surface of the hollow part of the article to be washed receives ultrasonic washing action. The article 16 to be washed received in the washing basket 4 is revolved along with the washing basket 4 to approach or separate with respect to the ultrasonic oscillation part 3 to be averagely washed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ultrasonic cleaning device, and more particularly to an ultrasonic cleaning device used for cleaning hollow containers such as flasks and test tubes in medical institutions and laboratories.

[0002]

The ultrasonic cleaning machine is for cleaning the surface of an object to be cleaned by placing the object to be cleaned in a cleaning water tank having an ultrasonic wave oscillating section and transmitting the vibration of ultrasonic waves to water. However, since the flask, the test tube and the like are hollow containers, one of which is closed, when placed in the washing water tank, an air layer or an air pool remains in the container and some portions are not washed. In addition, the effect of ultrasonic cleaning varies depending on the distance from the oscillating unit, so when the position is far from the oscillating unit or at the position where it is attenuated due to frequency resonance, the cleaning effect may weaken. However, there is a problem that the uniform cleaning action cannot be received.

The object of the present invention is that even when cleaning a hollow container or the like, there is no risk of uncleanable parts due to air pockets, and a uniform cleaning effect can be obtained at any position inside the cleaning car. An object is to provide a sonic cleaning device.

[0004]

In order to achieve the above object, an ultrasonic cleaning apparatus of the present invention comprises a cleaning water tank having an ultrasonic wave oscillating portion at its lower portion and bearing portions on opposite side walls.
The cleaning basket is equipped with a water-permeable cleaning basket that accommodates an object to be cleaned and is inserted into the cleaning water tank. The inner cleaning basket has left and right rotating supports. It is characterized in that it is rotatably supported by a bearing portion provided in the.

[0005]

[Function] Since the cleaning basket containing the hollow container to be cleaned is rotatably supported by the horizontal shaft in the cleaning water tank,
When ultrasonic cleaning is performed by oscillating ultrasonic waves in the cleaning water tank while rotating the cleaning basket, when the mouth of the hollow cleaning object reaches the position above the cleaning water tank, the air layer inside the hollow cleaning object Air escapes by buoyancy, the interior of the hollow object to be cleaned is filled with water, and the entire surface of the container to be cleaned is subjected to ultrasonic cleaning.

The rotation of the cleaning basket changes the distance and the positional relationship between the ultrasonic oscillator and the object to be cleaned, so that the object to be cleaned is cleaned on average.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. The washing water tank 1 is provided with an ultrasonic wave oscillating unit 3 at the bottom of a hollow casing 2 that is filled with water.
Bearings 5a and 5b for rotatably supporting an inner cleaning basket 4 described later are provided on the left and right side plates 1a and 1b facing each other.

FIG. 2 is an enlarged view of the cleaning basket 4 which is rotatably set in the cleaning water tank 1. As shown in FIG. 2, the cleaning basket 4 is composed of a frame body 6 made of a material such as a wire mesh and a lattice frame that allows water to pass through inside and outside, and a part of the frame body 6 constitutes an opening / closing lid 7. A pair of rotary support shafts 8a and 8b are integrally formed on the left and right side surfaces in the longitudinal direction.

As shown in FIG. 1, the cleaning basket 5 includes a pair of left and right rotary support shafts 8a, 8b, and the bearings 4a, 4 of the cleaning water tank 1.
It is rotatably supported in the washing water tank 1 by being liquid-tightly supported by b.

A gear 9 is fixed to one of the support shafts 8a of the cleaning basket 4 projecting outside the bearings 5a and 5b of the cleaning water tank 1. The gear 9 connects a driving device 10 such as a motor via a timing belt 11. The washing basket 4 is rotated in the washing water tank 1 by the driving device 10 at a relatively low speed. In the figure, 12 is a bearing housing, 13 is a bearing, and 14 is a nut.

Thus, when cleaning an object to be cleaned such as a flask or a test tube, the object to be cleaned 16 is put in the cleaning basket 4 rotatably supported in the cleaning water tank 1 as shown in FIG. Tighten 8 and slowly rotate the cleaning basket 4 in the cleaning water tank 1 while oscillating ultrasonic waves from the ultrasonic wave oscillating section 3 of the cleaning water tank.

In this case, as shown in FIG. 3a, the object to be cleaned such as a flask and a test tube is a hollow body whose one end is closed. Alternatively, an air pocket 17 may occur.
Therefore, as it is, the portion of the air layer 17 is not washed because ultrasonic waves are not transmitted, but in the present invention, the washing basket 4 rotates in the washing water tank 1 to rotate the mouth of the hollow article 16 to be washed as shown in FIG. 3b. When the water is directed to the top of the wash water tank 1, the air pool 1
Since the air inside 7 is removed by buoyancy and filled with water, the entire hollow inside of the object to be cleaned 16 is subjected to ultrasonic cleaning.

Further, the object to be cleaned 16 housed in the cleaning basket 4 rotates together with the cleaning basket 4 to move toward and away from the ultrasonic wave oscillating portion 3, so that the cleaning basket 4 is closed. The object 16 to be cleaned is cleaned on average.

[0014]

As described above, in the ultrasonic cleaning apparatus of the present invention, the uncleanable portion due to the air layer is eliminated, the entire surface of the hollow object to be cleaned such as the test tube is guaranteed, and the object to be cleaned with respect to the ultrasonic oscillator is As the position of changes, the average cleaning action is received.

[Brief description of drawings]

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

FIG. 2 is an enlarged perspective view of a washing basket,

FIG. 3a is an explanatory view of the operation of the present invention, showing a central longitudinal cross-sectional view at the start of cleaning;

3b is an explanatory view of the operation of the present invention, showing a central longitudinal cross-sectional view of the washing basket rotated 180 degrees from the position of FIG. 3a;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Washing water tank, 2 ... Casing, 3 ... Ultrasonic oscillating part, 4 ... Washing basket 5a, 5b ... Bearing part, 7 ... Opening / closing lid, 8a, 8b ... Rotating spindle, 9 ... Gear, 10 ... Driving device, 11 ... Timing belt, 16 ... Object to be cleaned,
17 ... Air trap.

Claims (2)

[Claims] 1. A cleaning water tank having an ultrasonic wave oscillating portion at a lower portion thereof and bearing portions provided on opposite left and right side walls, and a water-permeable cleaning basket for accommodating an object to be cleaned and inserted into the cleaning water tank. And an ultrasonic cleaning device in which the cleaning basket has left and right rotation supports, and the rotation support shaft is rotatably supported by bearings provided on the left and right side walls of the cleaning water tank. 2. The ultrasonic cleaning device according to claim 1, further comprising drive means for rotating the cleaning basket.