JPH06170340A - Cleaning device - Google Patents

Abstract

PURPOSE:To clean a step section uniformly and stably by setting a brush obliquely in the forwarding direction of a matter to be cleaned and adjusting the setting angle in accordance with the step of the matter to be cleaned in a cleaning device for cleaning the matter with step. CONSTITUTION:In a cleaning device for cleaning a matter 3 to be cleaned such as a liquid crystal panel with step 4 on its surface by means of a brush 1, the brush 1 is installed obliquely (angle theta) in the forwarding direction of the matter 3 to be cleaned. The brush 1 is moved to the center of the step 4 by the amount theta1 from the position (a) of hairs 3 of brush 1, in the case the brush is installed square in the forwarding direction of the matter 3 to be cleaned by the arrangement, and the bottom of the step 4 can be cleaned in a wider range. In the process that the matter 3 to be cleaned moves by the distance S, the hairs of brush are moved to the position C along the step 4 to carry out the cleaning of the step section 4 on the side of being farther to the forwarding direction of the matter 3 to be cleaned by a corner A of the step. The inclination angle of the brush 1 can be adjusted freely in accordance with the level of the step.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for cleaning an object to be cleaned having a step such as a liquid crystal panel with a brush or the like.

[0002]

2. Description of the Related Art For example, as shown in FIG. 7, not only a smooth surface of an object to be cleaned but also a stepped portion of an object to be cleaned 3 such as a liquid crystal panel having a narrow groove is almost uneven. 6 was attached to the rotary shaft 2 (rotating means not shown), and the brush 1 was rotated to perform cleaning.

Further, as shown in FIG. 8, there is also a method of arranging the object to be cleaned 3 obliquely and cleaning it. As described above, in order to secure the quality of the liquid crystal panel, the brush cleaning which is not affected by the scratches on the surface and the deterioration due to the chemical liquid is mainly used.

[0004]

However, in the method shown in FIG. 6, since the bristles 7 of the brush fall at the corner A (8) of the step portion 4 of the article 3 to be cleaned as shown in FIG. A shadow portion is formed on the portion 4 that is difficult to clean. As a result, uniform and stable cleaning up to the corner of the step portion 4 could not be performed.

Further, according to the method shown in FIG.
Since the direction of the bristles 7 of the brush is disturbed along the end face B of the above, there is a problem that cleaning unevenness occurs and bites into the center of the brush 1 at an acute angle, and the life of the bristles 7 of the brush is shortened.

Further, if the width 5 or the pitch 6 of the stepped portion 4 of the article to be cleaned 3 is narrowed, it becomes more difficult to ensure uniform and stable cleaning quality. Further, although the pushing state of the object to be cleaned 3 and the brush 1 has a great influence on the cleaning effect, the pushing amount of the object to be cleaned 3 is sensuously obtained, and the reproducibility or the displacement amount due to change cannot be grasped. Due to this, quantitative management control was not possible.

[0007]

In order to solve the above-mentioned problems, a cleaning apparatus of the present invention installs a brush obliquely with respect to the traveling direction of an object to be cleaned, and adjusts the angle by providing a turning mechanism on this brush. The display unit is provided with a function and displays the amount of pushing of the brush with respect to the object to be cleaned.

[0008]

By providing the brush obliquely with respect to the traveling direction of the object to be cleaned, the bristles of the brush, which are collapsed at the corners of the step of the object to be cleaned, follow the object to be cleaned by the amount of the slanted angle. Then, it is possible to move to the center of the step and wash the corners of the step uniformly and stably.

Further, when the width or pitch of the step of the object to be cleaned changes due to the angle adjusting function of the brush, the angle with respect to the advancing direction of the brush is moved according to the change.
Uniform and stable cleaning is possible.

Further, a change in the driving torque when the brush is pushed into the object to be cleaned is taken out and the displacement amount thereof is displayed on the display means to quantitatively grasp the change.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to the drawings.

FIG. 2 shows a step of cleaning a stepped portion of an article to be cleaned 3 such as a liquid crystal panel having a stepped surface. (D) and (f) show a state in which the brush 1 is attached obliquely to the traveling direction of the object to be cleaned 3, and after the object to be cleaned 3 has passed through the brush 1, at the position of (e). 180
After rotating once, and then passing through the brush 1 '(f), the cleaning of the stepped portion of the object to be cleaned 3 is completed.

The operation of the cleaning apparatus constructed as above will be described with reference to FIG. First, the object to be cleaned 3 having a step on the surface is conveyed by a conveying means (not shown).
It reaches the vicinity of the bristles 7 of the brush planted on the brush 1 and comes into contact with the step portion 4 of the article to be cleaned 3. Cleaning cannot be performed unless the gap between the surface of the brush 1 and the surface of the object to be cleaned 3 is less than 0 mm.
This gap varies depending on the material of the brush 1, the length and thickness of the bristles, the density of the bristles, the number of revolutions, etc., but it is about 0.5 mm to 2.0 mm.
Is set to. Since the brush 1 is provided obliquely with respect to the traveling direction of the article to be cleaned 3 by the amount of θ1, the step portion 4 is provided by the amount of θ1 from the position a of the bristles of the brush when not inclined.
By moving to the center, the bottom of the step portion 4 can be cleaned in a wider range.

Further, as shown in FIG. 3, the angle θ1 between the brush 1 and the object to be cleaned 3 is uniform with respect to the entire length L of the brush 1, and the cleaning unevenness due to the disorder of the bristles 7 of the brush and the center of the brush 1 are caused. Can be washed without worrying about the hair being worn away.

Further, in the process in which the object to be cleaned 3 travels the moving distance S by the transport means (not shown), the bristles 7 of the brush move to the position C along the step portion 4 and are hardly cleaned by the corner A of the step. By cleaning the shaded portion C, the cleaning of the step portion 4 on the side farther in the traveling direction of the object to be cleaned 3 is completed.

Immediately after the contact between the brush 1 and the object 3 to be cleaned in the cleaning process, the end face B of the object 3 to be cleaned separates the bristles 7 of the brush into the positions of g · h · i, but the cleaning is completed. This state is maintained until you do. As a result, the end face is cleaned under the same conditions over the entire length, and can be cleaned without worrying about uneven cleaning. At this time, since the corner of the object to be cleaned 3 on the brush 1 is not an acute angle like θ2 in FIG. 8, the wear of the bristles is reduced as compared with the conventional case.

Then, the stepped portion 4 of the object to be cleaned 3 rotated 180 degrees in the step of FIG. 2 (e) is further advanced by the conveying means (not shown), and is slanted with respect to the advancing direction like the first brush 1. The opposite side of the step portion 4 is cleaned by the provided brush 1 ', and the cleaning of the entire object 3 to be cleaned is completed.

Next, a second embodiment will be described with reference to FIG. FIG. 4 is an external perspective view showing the brush turning mechanism, which has a handle 16, a bearing 15, a rotary shaft 14, and a worm wheel 13 for transmitting a rotary motion to a linear motion on a peripheral edge of the rotary table 12, and an upper part thereof. Support metal fitting 10 for fixing the brush 1 to the
It is composed of a connecting plate 11 for connecting 0s.
When the width 5 or the pitch 6 of the stepped portion 4 of the object to be cleaned 3 is changed, the shadow C of the stepped portion 4 is generated unless θ1 of the brush 1 which is already obliquely arranged is moved in accordance with the change. Therefore, the brush 1 is rotated by the turning table 12.
To enable uniform and stable washing.

Next, a third embodiment will be described with reference to FIG. FIG. 5 shows a brush 1 for cleaning an object to be cleaned 1.
It is composed of a drive motor 9 for rotating the motor, a signal processing unit for signal-processing a change in torque of the drive motor 9, and a monitor 17 for visually confirming the signal. The foreign matter adhering to the article to be cleaned 3 can be easily removed, and the foreign matter adhered to the article 3 to be cleaned is difficult to remove. Therefore, as shown in FIG. 5, the brush 1 attached to the drive motor 9 comes into contact with the object to be cleaned 3 with respect to the pushing amount of the brush 1 and the object to be cleaned 3, which is conventionally set in order to enhance the cleaning effect. The previous torque is displayed as a reference voltage on the monitor 17 by the signal processing unit,
The signal processing unit expresses the torque after the brush 1 comes into contact with the object to be cleaned 3 as the displacement amount on the monitor 17, so that the pushing amount can be quantitatively controlled. In this embodiment, the change in the torque amount can be visually confirmed,
If the pushing amount of the object to be cleaned 3 is automatically controlled according to the change in the torque amount, the cleaning can be more automated.

[0020]

As described above, according to the present invention, by providing the brush obliquely with respect to the traveling direction of the object to be cleaned, it is possible to obtain a uniform and stable cleaning effect on the step portion of the object to be cleaned. . Further, the wear of the brush is small and the life of the brush can be extended.

Further, by providing the brush with the turning mechanism, the mounting angle can be adjusted in accordance with the width and pitch of the stepped portion of the object to be cleaned, and the same cleaning effect can be obtained. Further, the amount of pushing between the brush and the object to be cleaned can be quantitatively controlled by the display means.

[Brief description of drawings]

FIG. 1 is an enlarged perspective view of a main part of a cleaning device according to a first embodiment of the present invention.

FIG. 2 is a diagram showing a cleaning process in the example.

FIG. 3 is a diagram showing a relationship between a brush and an object to be cleaned.

FIG. 4 is an external perspective view showing the configuration of a brush turning mechanism according to a second embodiment of the present invention.

FIG. 5 is a configuration diagram of a cleaning device according to a third embodiment of the present invention.

FIG. 6 is a configuration diagram of a conventional first cleaning device.

FIG. 7 is a perspective view of an object to be cleaned.

FIG. 8 is a configuration diagram of a second conventional cleaning device.

FIG. 9 is an enlarged perspective view of a main part of a conventional cleaning device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Brush 3 Object to be cleaned 4 Stepped portion 8 Stepped corner A 9 Drive motor 10 Support metal fitting 11 Connecting plate 12 Swiveling plate 13 Worm wheel 14 Rotating shaft 15 Bearing 16 Handle 17 Monitor

Claims (1)

[Claims] 1. A cleaning device for cleaning an object to be cleaned having a step, wherein the brush is installed obliquely to a traveling direction of the object to be cleaned, and the brush of the brush is installed in accordance with the step of the object to be cleaned. A cleaning device comprising an adjusting means for adjusting an installation angle and a display means for displaying a pushing amount of the brush with respect to the object to be cleaned.