KR910005977Y1 - Cleaning equipment for excluding a fluorescent material - Google Patents

Abstract

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Description

Cleaner for removing phosphor

1 is a schematic side cross-sectional view of a cleaning apparatus according to the prior art.

2 is a schematic side cross-sectional view of the cleaning device according to the present invention.

* Explanation of symbols for main parts of the drawings

11: rail support frame 11a: motor base

11b: guide rail 12: motor

13 drive pulley 14 carrier frame

15: panel carrier 15 ': clamp head rotation axis

16: hinge 17: driven pulley

18: clamp head 19: clamp

20 panel 21 washing liquid bath

22: wettable friction material 23: solenoid valve

24: cleaning liquid, supply pipe 25: flange

26: overflow cleaning liquid recovery piping 27: air cylinder

The present invention relates to a cleaning apparatus for removing the phosphor deposited on the end of the panel of the color brown tube, in particular, the phosphor coated in addition to the unnecessary part of the phosphor coating process in the manufacturing process of the panel of the color brown tube, that is, the effective screen of the panel The present invention relates to an improved cleaning apparatus capable of automatically removing the odor and completely preventing damage to the effective screen of the panel due to splashing or scattering of the cleaning liquid.

In the conventional cleaning method, there was a method in which the cleaning liquid was sprayed to the cleaning part by a nozzle at the beginning, and this method was used to disperse the cleaning liquid to the effective screen during rotation of the panel and movement of the nozzle. There was this. As a countermeasure for this, a washing apparatus as shown in FIG. 1 has been presented in Japanese Utility Model Publication No. 58-8380.

Looking at the structure of this washing apparatus, the washing liquid tank 3 in which the ultrasonic vibrator 2 is installed on the inner lower side is lifted by the washing liquid tank rising weight 9 so as to immerse the side part of the panel 1 over the entire circumference. When the panel support plate 6 is in contact with the end face of the panel 1, the cleaning liquid tank 3 stops and cleans the side surface of the panel by the vibration of the ultrasonic vibrator 2.

Then, when the predetermined washing time elapses, the washing liquid tank 3 is lowered by the air cylinder 10. At this time, the rocking mechanism 7 is provided in the cleaning liquid tank 3 in order to prevent damage to the surface of the effective screen due to the shaking of the cleaning side and the drop of liquid in the rising stop or the beginning of the lowering. On the other hand, the cleaning liquid is supplied from the cleaning liquid supply part 5a, and the cleaning liquid surface is kept constant by the overflow pipe 6.

Outer surface code | symbol 5b and 8 represent a washing | cleaning liquid discharge port and a washing | cleaning liquid adjustment tank, respectively. By the way, in the cleaning apparatus described above, the following problems have been found in the structure and working principle.

First, in the process of raising the side of the panel 1 by raising the cleaning solution tank 3 while the panel 1, which is the object to be cleaned, is immersed, the immersion depth of the panel side part is not constant due to the swelling of the cleaning solution. Second, the manufacturing cost of the cleaning solution tank is increased due to the use of an expensive ultrasonic vibrator to increase the cleaning efficiency, and the ultrasonic cleaning effect is reduced due to the incorporation of phosphors, graphite, and other foreign substances in the cleaning solution tank 3 after a certain period of time. Therefore, the workability is poor, such as the need to replace the cleaning liquid contained in the cleaning liquid tank and clean the inside of the cleaning liquid tank from time to time. Third, the side surface of the panel 1 is the first to the cleaning liquid tank 3. As a result of adopting a structure that is immersed all around, the cleaning liquid is inevitably stored through the overflow pipe 6, which is an air distribution means, inside the panel. In the process of being returned to the tank 8, there was a problem such that the cleaning liquid is scattered in the effective screen of the display panel damage.

In order to solve the above problems and drawbacks, the present invention aims to provide a rotating friction type cleaning apparatus capable of increasing the cleaning efficiency without being directly immersed in the cleaning liquid as a whole.

Another object of the present invention is to provide a cleaning apparatus having a structure in which the cleaning liquid tank is cleaned or the frequency of replacing the cleaning liquid is less than in the related art, and the operation is easy.

A further object of the present invention is to provide a cleaning apparatus in which an overflour means for maintaining a constant liquid level of the cleaning liquid in the cleaning liquid tank is provided outside the protective phase of the effective screen of the panel.

Next will be described in detail with reference to Figure 2 an embodiment that can achieve the object of the present invention.

The rail support frame 11 is a motor base portion 11a for mounting the motor 12 under the tip thereof, and a guide for guiding the panel carrier 15 to be arranged at a predetermined distance from the motor base portion 11a. The rail 11b is included. The carrier frame 14 is coupled to the panel carrier 15 via the hinge 16 so as to transport the panel carrier 15 along the guide rail 11b. In the fluorescent film cleaning process in which the apparatus of the present invention is used, the direction of the axis line Y of the panel carrier 15 is 3-18 degrees with respect to the vertical line X passing through the hinge 16, preferably at an angle of 5 degrees. The trademark positional relationship of the hinge 16 and the guide rail 11b is set so that it may incline. The driven pulley 17, which is brought into surface contact with the driving pulley 13 fixed to the shaft of the motor 12, is integral with the clamp head 18 by a rotation shaft 15 'passing through the center of the panel carrier 15. In this case, the panel 20 fixed to the clamp 19 is rotated in an inclined state.

The cleaning liquid tank 21 is configured to be movable vertically by a normal lifting mechanism such as an air cylinder 27, and an upper surface portion thereof is covered with a wet friction material 22 capable of holding the cleaning liquid in the center thereof.

Therefore, when the cleaning liquid is filled into the cleaning liquid tank 21 through the solenoid valve 23 and the cleaning liquid supply pipe 24 from the cleaning liquid storage tank (not shown), the cleaning liquid tank 21 is raised to partially cover the second side portion of the panel 1. When the panel 20 is rotated by the rotational force of the motor 12 in a state where the wettable friction material 22 is buried as a tile, a high cleaning effect can be obtained and the cleaning liquid can be removed by the diaphragm function of the friction material 22. The splashing phenomenon on the screen is eliminated to prevent damage to the panel.

The wettable friction material 22 can be used as long as it can contain the cleaning liquid and does not damage the panel. In this embodiment, the wettable friction material 22 is made of a woven material such as gauze. And the " b " shaped flange portion 25, which is a means for recovering the cleaning liquid overpropelled by the excessive supply of the cleaning liquid, is integrally formed on the outer surface of the cleaning liquid tank 23 deviating from the effective screen area of the panel. By doing so, it is possible to prevent damage to the effective screen of the panel due to the scattering of the cleaning liquid due to the overflow of the conventional art. Reference numeral 26 is a pipe for returning the overflow cleaning liquid accumulated in the flange portion 25 to the cleaning liquid storage tank (not shown).

On the other hand, the rotational speed of the panel 20 to be cleaned is preferably set to 15-20 RPM in consideration of the cleaning efficiency between the side face and the wettable friction material 22 and the wear of the friction material. In addition, since the phosphor or other foreign matter removed from the side part of the panel 20 during the cleaning process is collected on the friction material 22 without entering the inside of the cleaning solution tank 21, the cleaning of the cleaning solution tank is completed by shaking off at regular intervals. In addition, the replacement period of the cleaning liquid also increases in the long term, resulting in material savings. As described above, according to the present invention, the cleaning efficiency is increased, the screen of the panel is hardly damaged during the cleaning process, and a cleaning device capable of contributing to cost reduction can be obtained by prolonging the replacement time of the cleaning liquid.

Claims (3)

The panel carrier is hinged to the front end of the carrier frame and rotated on the head rotation shaft therein by the rotational force of the motor to rotate the panel clamped to the clamping head of the front end, and the panel clamped to the clamping head. In the cleaning device for removing phosphors having a wettable friction material in contact with the side portion, the cleaning liquid tank is configured to move up and down in its entirety, the axis (Y) of the panel carrier 15 is passed through the hinge (16) It is installed to be inclined at a predetermined angle with respect to the vertical line (X), and the wettable friction material 22 is formed in a plate shape and is covered with an upper surface of the cleaning liquid tank 21, and is provided on the outer surface of the cleaning liquid tank 21. A cleaning device for removing phosphors, characterized in that the flange portion (25) is integrally formed in an "L" shape for recovering an overflowing cleaning liquid. The cleaning apparatus for removing phosphors according to claim 1, wherein the rotation speed of the panel (20), which is the object to be cleaned, is 15-20 RPM. The cleaning device for removing phosphors according to claim 1, wherein an angle formed between the starting line (Y) of the panel carrier (15) and the vertical line (X) passing through the hinge (16) is 5 degrees.