JPS6035161Y2 - cleaning equipment - Google Patents

Description

[Detailed description of the invention] The present invention relates to a cleaning device that cleans a certain area of the inner surface of a concave container-shaped object to be cleaned. The present invention relates to an apparatus that automatically and completely removes unnecessary portions of the fluorescent film coating process, that is, the film coated on areas other than the effective screen of the panel.

Conventional cleaning methods apply cleaning liquid to the cleaning area using one or more nozzles to clean the area, which means that cleaning is equivalent to a series of intermittent operations, and the total cleaning time is not sufficient within a certain pitch time. There are drawbacks such as the cleaning liquid scattering onto the effective screen when the nozzle rotates and the nozzle moves, and the size of the panel to which it can be applied is limited, making the cleaning area uneven and potentially damaging the appearance.

SUMMARY OF THE INVENTION An object of the present invention is to provide an apparatus capable of cleaning the side surface of a color cathode ray tube panel, which is a concave container-shaped object to be cleaned, in a stationary state, while eliminating the above-mentioned drawbacks.

According to the present invention, there is a storage tank for cleaning liquid, an overflow communication pipe installed in the upper part of the storage tank and in the center part to keep the liquid level at a constant level, and a concave container-shaped container to be cleaned in the lower part. A cleaning tank equipped with a backing that determines the immersion depth of the body, and a concave container-shaped object placed in a predetermined position above with its concave side facing down, is immersed in the cleaning solution in this cleaning tank until it reaches the backing. It has a mechanism for raising the cleaning tank to clean the object to be cleaned, a pump for supplying the cleaning liquid from the cleaning liquid storage tank to the cleaning tank, and a mechanism for lowering the cleaning tank after cleaning the concave container-shaped object to be cleaned. A cleaning device that can automatically clean in a short time can be obtained.

The details of the present invention will be explained below with reference to embodiments shown in the drawings.

FIG. 1 is a sectional view showing an example of a panel, and the inner surface 2 of the panel 1 is immersed in a cleaning liquid within a certain range a for cleaning.

FIG. 2 shows a schematic diagram of an embodiment of the present invention.

In the figure, the cleaning tank 6 is raised by the cleaning tank raising plow 8 while the cleaning liquid 7 is supplied from the cleaning liquid storage tank 4 to the cleaning tank 6 by the pump 5.

When the end surface of the panel 1 comes into contact with the backing 9, the cleaning tank 6 stops rising, and the cleaning liquid level inside the panel 1 rises.

At this time, if air bubbles are generated in the cleaning liquid 7 transferred from the pump 5, when the bubbles are crushed, the liquid scatters and adheres to the membrane surface 3 of the effective screen. Therefore, a bubble stopper 10 with a mesh is provided. When the cleaning liquid level reaches the end face, the cleaning liquid 7 is returned to the cleaning liquid storage tank 4 through the communication pipe 11.

During this time, clean the inner surface 2 of the panel other than the effective screen 3,
When the set time is reached, the flow of the cleaning liquid is changed by the switching valve 12 and the cleaning liquid is returned from the pump 5 to the cleaning liquid storage tank 4 and the cleaning tank 6, and then the cleaning tank 6 is lowered by the air cylinder 13.

3 shows the panel 1 at rest and the cleaning tank 6 is just raised, and FIG. 4 shows the cleaning tank 6 raised so that the end face of the panel 1 is in contact with the backing 9 and the panel is immersed in the cleaning liquid 7. show.

Figure 5 shows that the cleaning liquid level inside the panel 1 rises and the communication pipe 1
The cleaning state of the inner surface 2 of the panel 1 is shown when the upper end surface of the panel 1 is reached.

As is clear from the above explanation, the cleaning device of the present invention has a good cleaning effect, provides a more uniform cleaning area, eliminates panel processing defects due to cleaning liquid scattering, and reduces panel processing costs by shortening the cleaning time. Demonstrate the effect of

Furthermore, since there are no restrictions on the applicable panels, it is possible to automate mixed production of a wide variety of products.

[Brief explanation of drawings]

Fig. 1 is a sectional view showing an example of a color cathode ray tube panel, Fig. 2 is a schematic illustration of an embodiment of the cleaning device according to the present invention, and Figs. 3, 4, and 5 are illustrations of the cleaning process. be. 1...Panel, 2...Inner side of the panel,
3...Panel effective screen, 4...Cleaning liquid storage tank, 5...Pump, 6...Cleaning tank,
7...Cleaning liquid, 8...Cleaning tank lifting peg, 9...Backing, 10...Bubble stopper, 111...Communication pipe , 12...Switching valve, 13...Air cylinder for lowering the cleaning tank 14...Panel chuck, 15...
・Frame, 16... Casters, 17...
- Guide frame for upper and lower cleaning tanks, 18...Chain wheel, 19...Hanging chain, 20...Arm for upper and lower cleaning tanks.

Claims (1)

[Scope of utility model registration request] A storage tank for cleaning liquid, an overflow communication pipe installed in the center of the storage tank to maintain the liquid level at a constant level, and a concave container at the bottom to determine the immersion depth of the object to be cleaned. A cleaning tank equipped with a backing and a concave container-shaped object to be cleaned, which is placed in a predetermined position above and with its concave side facing down, placed in the cleaning solution in the cleaning tank, and the cleaning tank is raised to immerse it until it reaches the backing. 1. A cleaning device comprising: a mechanism; a pump for supplying cleaning liquid from a cleaning liquid storage tank to the cleaning tank; and a mechanism for lowering the cleaning tank after cleaning a concave container-shaped object to be cleaned.