JPS60114386A - Ultrasonic washing method and device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention relates to an ultrasonic cleaning method and apparatus.

As shown in FIG. 1, in a conventional cleaning device, an ultrasonic vibrator B is installed in a cleaning tank A, inserted into a cleaning liquid C, and then the object to be cleaned is irradiated with ultrasonic waves to perform cleaning. And cleaning tank A
An overflow tank E receives the cleaning liquid that overflows from the tank, and a pump F sucks the overflow liquid and sends it to the cleaning tank A via a filter 〇.

Conventional devices had the following drawbacks.

(1) The items to be cleaned must be placed in a cleaning basket, which is inconvenient.

(2) If the amount of material to be cleaned is large, uneven cleaning may occur.

(♂ Inside the cleaning tank ((The absolute amount of cleaning e and C put in is large.

(A) The container for transporting the object to be cleaned requires an up-and-down and a transport mechanism, resulting in a complicated structure.

(3) When the object to be cleaned is pulled up after cleaning, there is a risk that the dirt floating on the liquid surface will re-adhere.

The inventor of the present invention has conducted various researches in order to eliminate the above-mentioned drawbacks of the conventional method and to perform cleaning in an assembly line.As a result, (/') the cleaning liquid is caused to flow down in a curved manner from above, and the object to be cleaned is placed in an upright position. At the same time, the object to be cleaned is irradiated with ultrasonic waves to be cleaned.

G2) Open a flow port for the cleaning liquid to flow down into the liquid storage tank installed above, install a liquid receiving tank to receive the cleaning liquid below this flow opening, and connect this liquid receiving tank with a liquid return pipe equipped with a pump. Connected to the liquid storage tank, connecting the flow outlet and the liquid receiving tank so as to form a passage with a partition and an ultrasonic diaphragm, and providing conveyance rollers above and below the passage for conveying the object to be cleaned. .

The inventors have found that better results can be obtained by using the method described above, and have proposed the present invention.

The method of the present invention will be explained in detail based on the embodiment of the apparatus shown in FIG. 2.A liquid storage tank for storing cleaning liquid is installed above. Then, a flow log is opened at one end of the bottom plate 3 of the liquid storage tank to allow the cleaning liquid to flow down. A flow guide 1.5 having an arcuate cross section is provided on the side opposite to the wall of the liquid storage tank of this flow outlet 3, and a partition plate B is provided extending from the upper end of this flow guide fii5 to the bottom plate 3 to allow the cleaning liquid to flow down. Guided by the guide plate 3, the logs are arranged so as to flow down in a bay shape.

On the other hand, a liquid receiving tank 7 is installed below the flowing log to receive the cleaning liquid.・This liquid receiving tank 7 is connected to the liquid storage tank 2 through a liquid return pipe, A, pump 2
and a filter 70 are installed to remove dirt from the received cleaning liquid through the filter 10, and only the cleaning liquid is returned to the liquid storage tank 2.

One of the downstream logs is connected to the liquid receiving tank 7 by a partition plate //, and the other downstream log is connected by an ultrasonic diaphragm /2,
A passage /3 is formed between the partition // and the ultrasonic diaphragm /2 to allow the cleaning liquid / to flow down. The ultrasonic vibrator/g is fixed to the field path/3j rule of the ultrasonic diaphragm/-2.

Also, there are several conveyor rollers on the top and bottom of the passageway/3, respectively.
---, /shio', -m- are rotatably attached to the partition plate // to clean plate-like objects such as liquid crystal glass, metal plates, substrates, etc.
B is designed to be transported in an upright position.

The device of the present invention is constructed as described above, and the cleaning liquid is sufficiently stored in the liquid storage tank 2 by the partition wall A.
Use the guide on the left side of the flow guide plate to flow down from the flow log in a bay shape.

This flowing cleaning liquid/inside, the upper and lower conveyor rollers/left, -
--/, lt'.

Pass the object to be cleaned/B in an upright state with the guidance of -m-, irradiate the object to be cleaned/B with ultrasonic vibration from the ultrasonic vibrator/g, and shake the object/B slightly back and forth. Rinse and clean.

The cleaning liquid after cleaning flows into the liquid receiving tank 7 (17), filters 70 using a pump to remove dirt, and returns to the liquid storage tank.

In the method of the present invention, the flowing cleaning liquid/inside is cleaned?
Since the cleaning liquid is passed through in an upright state, the dirt falls down as the cleaning liquid flows down, and there is no possibility of it re-attaching as in the conventional method.

Dad, since it can simply pass through in an upright position, it can be easily passed through the processing lines before and after it.

In the device of the present invention, the passage /3 through which the cleaning liquid / flows down is connected to the partition plate // and the ultrasonic vibrating squid /! Since it is formed with can be improved.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a conventional device, and FIG. 2 is a sectional view of an embodiment of the device of the present invention. In addition, / in the figure is the cleaning liquid, C is the liquid storage tank, G is the outlet, 7
is the liquid receiving tank, is the liquid return pipe, is the pump, // is the partition jk, /, 2 is the ultrasonic diaphragm, /3 is the passage, /S, /left' is the transport roller, /B is the covered It's something to wash. Patent applicant Shimada Rika Kogyo Co., Ltd. Figure 1 Figure 2 481-

Claims (2)

[Claims] (1) An ultrasonic cleaning method characterized by causing a cleaning liquid to flow down from above in a bay shape, passing an object to be cleaned upright through the flow, and irradiating the object with ultrasonic waves. (2) Open a flow port to allow the cleaning solution to flow down into the liquid storage tank installed above, install a liquid receiving tank to receive the cleaning liquid below this flow port, and use the liquid receiving tank as a liquid return tank with a pump. Connected to the liquid storage tank with a pipe, and connected to form a passage between the flow outlet and the liquid receiving tank with a partition plate and an ultrasonic vibrator 2, and a conveyor roller that conveys the object to be cleaned up and down the passage. An ultrasonic cleaning device characterized by being provided with.