JP2961070B2 - Cleaning tank - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning tank used for aqueous cleaning of metal parts.

[0002]

2. Description of the Related Art As shown in FIG. 2, a conventional washing tank is provided with a washing tank 9 containing the washing water 2 and a drain tank 10 containing the draining agent 3, and the washing liquid in the previous step adheres thereto. After the work 8 was washed in the washing tank 9, the work 8 was lifted and placed in the drain tank 10 to drain the water.

In FIG. 2, reference numeral 5 denotes a water supply pipe to the washing tank 9, reference numeral 6 denotes an overflow water pipe connected to an upper portion of the washing tank 9, and arrows indicate directions in which the work 8 moves.

[0004]

When the above-mentioned conventional washing tank is used for washing with water, the work is rinsed in the washing tank, and then the work is taken out into the air (atmosphere) and put into the drain tank. The work often rusted under the influence of oxygen in the air. In addition, as shown in FIG. 2, the water 2 brought by the work floats on the surface of the drain tank, and when the work is taken out of the drain tank, the water is re-adhered to the work and the drain may be insufficient. .

An object of the present invention is to provide a washing tank capable of solving the above problems.

[0006]

According to the present invention, there is provided a washing tank comprising a partition plate having an upper part in a tank body and a lower end partly spaced above a bottom surface of the tank body. A liquid drainage agent having a higher specific gravity than the cleaning liquid contained in the two parts on both sides of the plate, being insoluble in the cleaning liquid, and having a small surface tension; and the liquid drainage agent in one part of the tank body partitioned by the partition plate And a cleaning liquid contained above and in contact with the cleaning liquid.

[0007]

In the washing tank of the present invention, one part in the tank body divided by the partition plate has a function of a washing tank, and the object to be washed is washed with the washing liquid. The object to be cleaned thus washed is moved down one part of the tank into the draining agent, where the cleaning liquid attached to the object to be cleaned is removed by the agent having a small surface tension. Get kicked out. The purged cleaning liquid floats upward due to the specific gravity and is integrated with the cleaning liquid in one part of the tank. Thereafter, the object to be cleaned moves sideways, moves to the other portion in the tank containing the liquid drainage agent, and moves upward in the other portion.

Therefore, the cleaning liquid does not float on the surface of the draining agent in the other part. Also, since the object to be cleaned is not exposed to oxygen in the air after cleaning with the cleaning liquid, and the cleaning liquid does not adhere again to the object to be cleaned after draining, rusting of the object to be cleaned, such as steel, is prevented. Can be prevented.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIG. The present embodiment relates to a water rinsing tank having a water draining function for rinsing a work to which a cleaning liquid that has been washed in the previous step is attached.

A vertical partition plate 4 for partitioning the inside of the tank main body 1 into left and right portions 1A and 1B is provided at an upper portion substantially at the center of the tank main body 1 in FIG. 1, and the lower end of the partition plate 4 has a tank bottom. It is located above the main body 1 at an interval, and a communication portion 1C that connects the portions 1A and 1B is formed in this portion.

A water supply pipe 5 is opened above one part 1A, and an overflow water pipe 6 is connected above the same part 1A. A liquid level gauge 7 for controlling the liquid level of the draining agent 3 is provided in the other portion 1B.

In the tank body 1 configured as described above,
First, the draining agent 3 is put into the portions 1A and 1B in the tank body 1,
The liquid level is set to an appropriate height above the lower end of the draining plate 4. As the draining agent 3, one having a higher specific gravity than water, being insoluble in water, and having a low surface tension is used. For example, fluorocarbon (FC77) can be used.

Then, one part 1 of the water supply pipe 5
Water is supplied into A, and water 2 is supplied until it overflows from the overflow pipe 6. Since the draining agent 3 does not dissolve in water and has a higher specific gravity than water, the supplied water 2 is stored in contact with and above the draining agent 3 in the portion 1A, and accordingly, the other portion 1B The liquid level of the draining agent 3 also rises. In this case, the surface of the portion 1A where the water 2 and the draining agent 3 are in contact with each other is set to be higher than the lower end of the partition plate 4.

In the present embodiment, when the work 8 is washed with water, the work 8 is put into the water 2 of the one part 1A in the tank body 1 and is held for a certain time while the water is discharged from the water supply pipe 5. Wash with water. During this time, the dirty water overflows from the overflow water pipe 6. When the washing is completed, the work 8 is moved downward as shown by the arrow so that the entirety of the work 8 comes into contact with the draining agent 3. At this time, the water adhering to the work 8 is driven out by the draining agent 3 having a small surface tension, and rises upward to be integrated with the water 2 for washing in the portion 1A. Thereafter, as shown by the arrow, the work 8 is connected to the communication portion 1C.
The tank body 1 containing the draining agent 3 after being moved sideways through
Is moved upward in the other part 1B of the work, and the work 8 is taken out into the air.

In the present embodiment, as described above, washing and draining can be performed without taking out the work 8 into the air, and rust can be prevented from being generated on the work 8. Further, the water expelled from the work 8 is integrated with the water 2 for washing in one part 1A where the water is washed, and the water expelled from the work 8 does not enter the other part 1B. In addition, water does not adhere to the work 8 after draining.

Although the above embodiment relates to a water washing tank for washing and draining a work to which a cleaning liquid which has been washed in a previous step has adhered, the present invention cleans a work or the like with a cleaning liquid other than water. It can be widely applied to a washing tank for draining liquid.

[0017]

Since the present invention has the structure described in the claims, the object to be cleaned is prevented from being corroded by cleaning with the cleaning liquid and draining the liquid without bringing the object to be cleaned into the air. The cleaning liquid can be reliably drained without the cleaning liquid adhering to the object to be cleaned.

[Brief description of the drawings]

FIG. 1 is a sectional view of one embodiment of the present invention.

FIG. 2 is a sectional view of a conventional washing tank and a drain tank.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tank main body 1A, 1B Parts in tank main body 1C Communication part 2 Water 3 Drainage agent 4 Partition plate 5 Water supply pipe 6 Overflow water pipe 7 Liquid level gauge 8 Work 9 Rinse tank 10 Drain tank

Claims (1)

(57) [Claims] 1. A partition plate whose upper part in a tank body is divided into two parts and a lower end is positioned above a bottom surface of the tank body with a space therebetween, and a cleaning liquid contained in two parts on both sides of the partition plate in the tank body. A liquid draining agent having a higher specific gravity, not soluble in the cleaning liquid, and having a small surface tension, and a cleaning liquid stored above and in contact with the liquid draining agent in one part of the tank body partitioned by the partition plate. A washing tank characterized by comprising: