KR20060117663A - Cleaning brush unit for manufacture of flat panel display - Google Patents

Abstract

A cleaning brush unit for manufacturing a flat panel display is provided to simplify the structure of an apparatus, by controlling the height of a brush using circle plate cams and a servomotor. A cleaning brush unit comprises a brush shaft(134) on which a brush(133) is installed, first and second bearing housings(136,137) installed at both ends of the brush shaft, and an elevating member(140) for elevating the first and second bearing housings to control the height of the brush shaft. The elevating member includes a servomotor(142), first and second circle plate cams(146a,146b) installed at a rotary shaft(144) of the servomotor, a first cam load(148) connected to the first bearing housing, and a second cam load(149) connected to the second bearing housing. The first and second cam loads have rollers contacted with the firs and second circle plate cams, respectively.

Description

CLEANING BRUSH UNIT FOR MANUFACTURE OF FLAT PANEL DISPLAY}

1 is a plan view schematically showing a cleaning apparatus for manufacturing a flat panel display with a cleaning brush unit according to an embodiment of the present invention;

Figure 2 is a front view schematically showing a cleaning device for manufacturing a flat panel display with a cleaning brush unit according to an embodiment of the present invention;

3 is a side view schematically showing a cleaning apparatus for manufacturing a flat panel display having a cleaning brush unit according to an exemplary embodiment of the present invention.

* Explanation of symbols for the main parts of the drawings

110: clean booth

120: worktable

130: upper brush unit

130 ': lower brush unit

140: lifting member

146a: disc cam

160: gauge

The present invention relates to a cleaning brush unit of a flat panel display (hereinafter referred to as an FPD). More specifically, the cleaning brush of a flat panel display, which can be easily manipulated and raised, is used to clean the FPD. It's about the unit.

In general, various devices such as a liquid crystal display device (LCD), a plasma display panel (PDP), an electroluminescent display (ELD), and a vacuum fluorescent display (VFD) are commonly used in flat panel displays.

Among them, LCD is the most used in that it has excellent image quality and uses low power despite various disadvantages. In order to manufacture such a liquid crystal panel, a very large number of cleaning processes are required. As a method for cleaning, a method of removing organic or inorganic substances deposited on glass using physical force and ultrasonic waves using pure water is one of the most commonly used cleaning brush units. Using to remove the foreign matter and particles generated before and after the glass and deposition.

In general, the cleaning brush unit is installed on one side of the upper and lower sides of the transfer apparatus, such as a conveying roller conveyor for conveying the liquid crystal panel, and cleans the particles attached to the upper and lower surfaces of the liquid crystal panel conveyed along the conveying roller conveyor with a brush. Will be performed.

On the other hand, the height of the cleaning brush unit is individually controlled by the height adjusting device such as the worm gear type or the ball screw method. It was impossible to recognize.

An object of the present invention is to provide a cleaning brush unit of a new type of flat panel display that can accurately and easily adjust the height interval of the brush.

The cleaning brush unit of the flat panel display for achieving the technical problem is a brush shaft mounted with a brush for cleaning the flat panel display; First and second bearing housings installed at both ends of the brush shaft; An elevating member for elevating the first and second bearing housings for height adjustment of the brush shaft; The lifting member is a motor; First and second disc cams installed to be eccentrically rotated on a rotation shaft of the motor; A first cam rod having a roller installed to be in contact with the cam surface of the first disc cam and connected to the first bearing housing; And a second cam rod having a roller installed to contact the cam surface of the second disc cam and connected to the second bearing housing.

According to one embodiment, the lifting member may further include a gauge for checking the movement interval of the first cam rod and the second cam rod.

Hereinafter, an embodiment of the present invention will be described in more detail with reference to FIGS. 1 to 3. In the drawings, the same reference numerals are given to components that perform the same function.

The embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as being limited by the embodiments described below. This embodiment is provided to more completely explain the present invention to those skilled in the art.

In this embodiment, the substrate is for manufacturing a flat panel display (FPD) device, and the FPD is a liquid crystal display (LCD), a plasma display (PDP), a vacuum fluorescent display (VFD), or a field emission (FED). Display), ELD (Electro Luminescence Display).

1 to 3 are a plan view, a front view and a side view schematically showing a cleaning apparatus for manufacturing a flat panel display having a cleaning brush unit according to an embodiment of the present invention.

1 to 3, in the flat panel display cleaning apparatus 100, a clean booth 110 on which a cleaning operation is performed is installed on a work table 120. The clean booth 110 is provided with a conveyor device 114 having a plurality of rollers 112 for automatically transporting the flat panel display 10.

Although not shown, a plurality of nozzle devices may be provided in the clean booth 110 to spray water during the cleaning operation of the large flat panel display. The large flat panel display 10 is conveyed in the X direction by the plurality of rollers 112.

In the work table 120, a pair of upper brush units 130 and lower brush units 130 ′ for cleaning the upper and lower surfaces of the flat panel display 10 are disposed on the clean booth 110.

The upper brush unit 130 includes a brush 133, a brush shaft 134, and a rotational motor 132 for rotating the brush shaft, and a first lifting member 140 for adjusting the height of the brush. Have First and second bearing housings 136 and 137 rotatably bearing are installed at both ends of the brush shaft 134, and the rotary motor 132 is connected to one end of the brush shaft 134 and the conventional coupling 138. Is connected by.

The first elevating member 140 is for finely adjusting the height of the brush unit using the disc cam to change the height of the upper brush 133 according to the thickness of the flat panel display 10.

Looking at the lifting member in more detail with reference to Figures 2 and 3, the lifting member 140 has a servo motor 142 and a rotating shaft 144 rotated by the servo motor, the first and second on the rotating shaft Disc cams 146a and 146b are installed. These disc cams 146a and 146b are for adjusting the height of the upper brush. A second lifting member 130 'for adjusting the height of the lower brush unit 130' is installed side by side next to the first lifting member. On the other hand, the lifting member has a control unit 141 for controlling the servo motor 142. The controller 141 converts the height of the upper brush according to the amount of rotation of the servomotor 142 to determine the height of the brush displayed by the operator, thereby controlling the height of the servo motor by controlling the amount of rotation of the servomotor.

As described above, in the present invention, the height adjustment of the upper brush and the lower brush is made by the servo motor 142 controlled by the controller.

Meanwhile, the first cam rod 148 and the second cam rod 149 are respectively installed in the first bearing 136 and the second bearing 137 of the upper brush shaft 134. The first cam rod 148 and the second cam rod 149 are installed to be moved up and down along the LM guide 150 installed on the frame. The first cam rod 148 and the second cam rod 149 are installed. At the bottom of the) has a roller (R) which is installed in contact with the cam surface of the disc cam. That is, the first cam rod 148 and the second cam rod 149 are raised and lowered according to the cam surface height of the disc cam. The movement interval of the first cam rod 148 is checked by the gauge 160 installed in the LM guide 150, and the movement of the first cam rod 148 is made according to the rotation of the disc cam 146a. On the display of the control unit 141, the operator can check the vertical movement amount of the first cam rod 148 or the second cam rod 149 by converting it into a height with the data provided from the servo motor, and if necessary, the servo motor 142. ) Can be adjusted in real time. If necessary, the operator can manually adjust the height by rotating the rotary shaft 144, although not shown in the drawings, the handle may be installed on the rotary shaft.

On the other hand, the lower brush unit 130 ′ has a conventional configuration including a brush 133 having the same configuration and function as the upper brush unit 130, a brush shaft 134, and a motor 132 for driving the brush shaft. It has a second lifting member 140 'for adjusting the height of the brush. The second elevating member 140 ′ has the same configuration and function as the first elevating member 140, the servo motor 142, the rotating shaft 144, the first and second disc cams 146a and 146b and the first cam rod. 148 and a second cam rod 149. The description of the lower brush unit 130 'is substantially the same as the upper brush unit described above, and a description thereof will be omitted.

As described above, the elevating member of the present invention can be finely adjusted up and down by using the disc cam, it is possible to know the vertical fluctuation amount.

On the other hand, in the present invention, the cleaning brush unit having the above configuration can be variously modified and can take various forms. It is to be understood that the invention is not to be limited to the specific forms referred to in the foregoing description, but rather includes all modifications, equivalents and substitutions that fall within the spirit and scope of the invention as defined by the appended claims. It must be understood.

In the above, the cleaning brush unit according to the present invention has been shown in the configuration and operation according to the above description and drawings, but this is just an example, and various changes and modifications are possible within the scope without departing from the spirit of the present invention. Of course.

As described above, the present invention has the following effects. First, since the height adjustment of the upper brush unit and the lower brush unit is made by the disc cam can simplify the installation structure. Second, the operator can not only check the vertical movement of the first cam rod and the second cam rod with the data provided from the servo motor, but also operate the servo motor if necessary to conveniently adjust the gap.

Claims (3)

In the cleaning brush unit of a flat panel display: A brush shaft mounted with a brush for cleaning the flat panel display; First and second bearing housings installed at both ends of the brush shaft; An elevating member for elevating the first and second bearing housings for height adjustment of the brush shaft; The lifting member is Servo motor; First and second disc cams installed to be eccentrically rotated on a rotation shaft of the servomotor; A first cam rod having a roller installed to be in contact with the cam surface of the first disc cam and connected to the first bearing housing; And a second cam rod having a roller installed to be in contact with the cam surface of the second disc cam and connected to the second bearing housing.  The method of claim 1, The lifting member is And a control unit for displaying the height variation of the brush shaft with the data provided from the servo motor, and controlling the height of the brush shaft by controlling the rotation amount of the servo motor. The method according to claim 1 or 2, The lifting member is And a gauge for checking movement intervals of the first cam rod and the second cam rod.

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