KR100825860B1 - Menufacturing apparatus for flat panel disply panel and menufacturing method using the same - Google Patents

Abstract

An apparatus is provided to grind four sides of a glass sheet used for manufacturing a flat panel display without turning the glass sheet or a suction table so that the width of apparatus is minimized for cost reduction and transportation. A grinding apparatus(200) for grinding four sides of glass used for manufacturing a flat panel display includes a first suction table which holds a sheet of glass to grind a first longer side and a first shorter side, a horizontal transfer device(260) which transfers the glass sheet after grinding the first longer side and the first shorter side, a second suction table which holds the transferred glass sheet to grind a second longer side and a second shorter side, a first grinding device(230) which grinds the first longer side on the first suction table, a second grinding device(240) which grinds the first shorter side on the first suction table and the second shorter side on the second suction table, and a third grinding device(250) which grinds a second longer side on the second suction table.

Description

Manufacturing apparatus of flat panel display panel {Menufacturing Apparatus For Flat Panel Disply Panel And Menufacturing Method Using The Same}

1 and 2 show a conventional polishing table.

3 shows a conventional polishing apparatus.

4 shows a first embodiment of a table according to the invention.

5 shows the rotating member of the first embodiment.

FIG. 6 shows a polishing apparatus having the table shown in FIG. 4.

7A and 7B illustrate a polishing method using the polishing apparatus shown in FIG.

8A and 8B show another polishing method according to the present invention.

9 shows a second embodiment of a table according to the present invention and a polishing apparatus having the same.

** Description of the symbols for the main parts of the drawings **

100: table 110: 'ㄱ' type table

111: vacuum hole 121,122,123: auxiliary table

200: polishing apparatus 210: first polishing module

220: second polishing module 230: first polishing portion

231: spindle 232: grinding wheel

240: second polishing portion 250: third polishing portion

260: horizontal transfer means 270: vertical transfer means

A: first long side B: first short side

C: 2nd long side D: 2nd short side

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a polishing apparatus and method for a flat panel display, and more particularly, to a polishing apparatus and method capable of continuously polishing four sides of a panel without rotation of a panel or a table on which the panel is adsorbed.

In general, a flat panel display panel is cut to the required size from the original glass. Since the cut panel has sharp edges, the panel is polished to four sides using abrasive grinds.

Referring to FIG. 1, a conventional polishing apparatus includes a rectangular table 10 and an abrasive grindstone 20 for absorbing a panel p '. The table 10 is composed of a base 12 and a top plate (11). In addition, the abrasive grind 20 is provided with a pair of upper and lower (21, 22) to polish the upper and lower edges of the panel (p ') at the same time.

However, since the conventional table 10 configured as described above has a fixed area of the panel that can be adsorbed, when the area is different, there is a need to replace the top plate (see FIG. 2).

Referring to FIG. 3, the conventional polishing apparatus 30 loads the panel p with the first polishing module 31 to adsorb the table, and the polishing unit 20a for short side polishing is fixed while the table is horizontally moved. The first short side B and the second short side D are simultaneously polished while passing through 20b). At this time, of course, the upper and lower edges of the short sides B and D are polished at the same time.

As such, when both short sides B and D are polished, the panel p is transferred to the rotation module 32 to rotate the panel by 90 °.

The rotated panel is transferred to the second polishing module 33 and the first long side A and the second long side C while passing through the long side polishing parts 20c and 20d fixedly installed while the table is horizontally moved in the same manner. ) To polish at the same time.

However, the conventional polishing apparatus 30 must rotate 90 ° in order to polish the four sides of the panel. Due to the rotation of the panel, there is a problem in that the width of the equipment is too large because the panel rotation radius is required. Panels are becoming larger and larger, for example, in the case of 100-inch panels, the width of the equipment considering the rotation radius is close to 3m, which increases the manufacturing cost and makes it very difficult to transport the equipment.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a polishing apparatus and method capable of continuously polishing four sides of a panel without rotation of a table or panel adsorbing the panel.

It is another object of the present invention to provide a polishing apparatus and method which does not require replacing the table corresponding to the area of the panel.

In order to solve the above technical problem, the polishing apparatus of the flat panel display according to the present invention includes a first table for adsorbing the panel in a state capable of polishing the first long side and the first short side; Horizontal conveying means for conveying the panel in a horizontal direction; A second table for adsorbing the transferred panel in a state capable of polishing the second long side and the second short side; a first polishing unit for polishing the first long side of the panel adsorbed to the first table; adsorbed to the first table A second polishing portion for polishing the first short side of the panel and the second short side of the panel adsorbed to the second table; And a third polishing portion for polishing the second long side of the panel adsorbed to the second table. In other words, the module for polishing the first long side and the first short side of the panel and the module for polishing the second long side and the second short side of the panel are separated. Therefore, all four sides can be polished without rotating the panel.

In this case, it is preferable that the panel is driven to move along the sides of the first, second, and third polishing units, respectively, fixed to each table.

In addition, since the adsorption area varies depending on the area of the panel or on the long side or the short side of the same panel, it is preferable to make each table sufficiently large so as to be applicable to all of them. At this time, the first table or the second table is formed with a plurality of vacuum holes in order to prevent the vacuum disappearing, it is more preferable that the plurality of vacuum holes are vacuum controlled by a plurality of valves.

In addition, the first table or the second table may be formed in a 'b' shape, the first table and the second table is preferably provided with an auxiliary table for supporting the surface that does not adsorb. The auxiliary table may be installed to be movable, and a vacuum hole may also be formed to suck the panel.

In addition, the first table or the second table may be formed in a 'ㅁ' shape.

In particular, the second table is preferably provided with an alignment means for adjusting the position of the panel so as to suck the horizontally transported panel in the state capable of polishing the second long side and the second short side, the alignment means is the horizontal movement It may be a vertical conveying means for conveying the panel in a direction orthogonal to the conveying direction of the panel by the means.

According to an exemplary embodiment of the present invention, a method of grinding an edge of a flat panel display panel includes: 1) polishing a first long side of the panel and a first short side adjacent to the first long side by using a first polishing unit and a second polishing unit, respectively. ; 2) horizontally moving the panel of which the first long side and the first short side are polished; And 3) polishing a second long side of the horizontally transferred panel and a second short side adjacent to the second long side by using a third polishing unit and the second polishing unit, respectively.

Another method of grinding the edges of a flat panel display panel according to the present invention comprises the steps of: 1) loading a first panel on a first table; 2) polishing a first long side of the first panel and a first short side adjacent to the first long side using a first polishing unit and a second polishing unit, respectively; 3) transferring the first panel of which the first long side and the first short side are polished to a second table, and loading a second panel on the first table; 4) polishing the first long side of the second panel using the first polishing unit; 5) simultaneously polishing the first short side of the second panel and the second short side of the first panel using the second polishing unit; 6) polishing the second long side of the first panel by using a third polishing unit. In particular, the steps 4) to 6) are preferably performed simultaneously.

Hereinafter, with reference to the accompanying drawings will be described in detail the configuration and operation of the present invention.

Figure 4 shows one embodiment of a table 100 which is a component of the polishing apparatus according to the present invention.

Referring to this, a table 110 having an 'a' shape for adsorbing the panel P to allow the first long side A and the first short side B to be polished is provided. 'Adsorb so that the first long side (A) and the first short side (B) can be polished' means that the first long side (A) and the first long side (A) One short side B is adsorbed so as to protrude out of the table 110. In other words, in order for the abrasive grind to polish a side, it is necessary to fix the panel, especially the edge to be polished, so that the table does not interfere with the operation of the abrasive grind.

Therefore, the '110' shaped table 110 has a predetermined distance inside the first long side A and the first short side such that the first long side A and the first short side B protrude outwardly of the table 110. It adsorb | sucks and fixes inside the predetermined distance of (B).

Of course, a plurality of vacuum holes 111 are formed on the table 110 to vacuum the panel. The plurality of vacuum holes 111 are also controlled by a plurality of vacuum shutoff / supply valves to adapt to panels of various areas. That is, by dividing the plurality of vacuum holes into two or more blocks, vacuum control is performed according to the area of the panel so that there is no vacuum loss.

On the other hand, the table 100 is provided with auxiliary tables 121, 122, 123 to prevent the panel from sagging in the portion that does not suck. The auxiliary tables 121, 122, and 123 may have a structure capable of simply supporting the panel from below, but may also form a vacuum hole 111 like the table 110. The vacuum hole may also be vacuum controlled by a plurality of valves.

However, since the second long side C and the second short side D supported by the auxiliary tables 121, 122, and 123 are not polished sides, the second long side C and the second short side D must be outside. It does not have to be supported to protrude in the direction. That is, it may be provided to support the second long side C and the second short side D, and may support the inside thereof. In addition, unlike the table 110, which is fixedly installed, the auxiliary tables 121, 122, and 123 are provided to be movable and disposed at appropriate positions according to the area of the panel.

On the other hand, the panel (p) is to be adsorbed in the correct position of the table 110 to be accurate polishing. The table 110 is provided with a rotating member 130 for fine alignment of the panel p. That is, after loading the panel p on the table 110, the position of the panel is detected by a vision camera (not shown) provided at the top, and the rotating member 130 supporting the center of the panel is rotated to The panel is finely aligned. A plurality of vacuum holes are formed in the rotating member 130 to rotate in a state where the panel p is adsorbed. Of course, when rotating the panel should not apply a vacuum to the table 110 and the auxiliary table (121, 122, 123).

Referring to FIG. 5, the rotating member 130 includes a driving unit 133 that provides a rotational driving force, an elevating unit 132 for elevating and driving in a state in which the panel is adsorbed, and an upper plate 131 for adsorbing the panel. It is composed of The lifting unit 132 raises and rotates the panel before rotating the panel. This is to prevent interference or damage by the table when the panel is rotated.

Referring to FIG. 6, the polishing apparatus 200 according to the present invention includes a first polishing module 210 for polishing the first long side A and the first short side B of the panel p, and a second long side ( C) and the second polishing module 220 for polishing the second short side (D) is divided.

The first polishing module 210 includes a first table 110a having a '-' shape and first auxiliary tables 121a, 122a, and 123a, and is polished while moving along the first long side A. FIG. And a second polishing portion 240 for polishing while moving along the first short side B. FIG.

In addition, the second polishing module 220 is a second table (110b) of the form of 'b (it depends on the viewing direction, substantially the same shape as the first polishing table) and the second auxiliary table 121b And 122b, 123b, and a third polishing unit 230 for polishing while moving along the second long side A. The second short side B may be polished by the second polishing unit 240.

Here, the polishing unit 230, 240, 250 includes an abrasive grinding wheel 232 and a spindle 231 for rotating the grinding grinding wheel 232 at high speed. In addition, each of the polishing units 230, 240, and 250 is configured as a pair arranged up and down as shown in Figure 1 can simultaneously polish the upper and lower edges of each side.

In addition, a horizontal transfer means 260 for horizontally transferring the panel p adsorbed on the first table 110a to the second table 110b is provided.

The operation state and polishing method of the polishing apparatus configured as described above will be described. First, the panel p is adsorbed to the first table 110a. At this time, the first long side A and the first short side B, which are polished sides, are adsorbed so as to protrude outward of the first table 110a. . That is, the panel p is loaded to adsorb the inside of the predetermined distance between the first long side A and the first short side B. FIG. Of course, sagging of the panel is prevented by the first auxiliary tables 121a, 122a, 123a.

When the panel p is loaded as described above, the first long side A is polished while the first polishing unit 230 is moved, and the first short side B is polished while the second polishing unit 240 is moved.

When the first long side A and the first short side B of the panel are polished by this process, the panel is transferred to the second table 110b by the horizontal moving means 260.

In the same manner, the conveyed panel adsorbs the second long side C and the second short side D to protrude outward of the second table 110b.

In this state, the second long side C is polished while the third polishing unit 250 is moved. In addition, the second short side D is polished by moving the second polishing unit 240 to the right in the drawing.

Thus, all four sides can be polished without rotating the panel.

7A and 7B illustrate a method of polishing a small area panel p 'using the apparatus of FIG. 6.

Polishing the first long side (A) and the first short side (B) of the panel in the first polishing module 210 is the same as above, and will be omitted here.

Referring to FIG. 7A, the panel on which the first long side A and the first short side B are polished is transferred to the second table 110b of the second polishing module 220 by the horizontal transfer means 260. However, when the area of the panel is small, it cannot be adsorbed in the state where the second long side C and the second short side D can be polished only by horizontal feeding. That is, in the state of FIG. 7A, the second short side D is polishable, but the second long side C is not polishable.

Therefore, the position must be adjusted so that the second table 110b can be adsorbed in a state where the second long side C and the second short side D can be polished. This position alignment can be carried out by transferring the panel in a direction orthogonal to the conveying direction of the panel by the horizontal moving means 260, as shown in FIG. For this purpose, a vertical transfer means 270 for transferring the panel in the vertical direction may be used as the alignment means.

Here, the horizontal transfer means 260 or the vertical transfer means 270 may be applied to all known means, and thus, no separate configuration has been described.

8A and 8B show another polishing method according to the present invention. 8A, the first long side A of the first panel p1 is polished by the first polishing unit 230, and the first short side B is polished by the second polishing unit 240. This is the same as the previous embodiment.

Referring to FIG. 8B, the first panel p1 of which the first long side A and the first short side B are polished as described above is transferred to the second table 110b using the horizontal moving unit 260. At the same time, the second panel p2 is loaded into the first table 110a.

In this state, the first long side A of the second panel p2 is polished using the first polishing unit 230, and the second panel p2 of the second panel p2 is polished using the second polishing unit 240. The first short side B and the second short side D of the first panel p1 are simultaneously polished, and the second long side C of the first panel p1 is formed using the third polishing unit 250. To polish. In other words, the first short side B of the second panel p2 and the second short side D of the first panel p1 are simultaneously polished according to the movement of the second polishing unit 240. To this end, the first polishing module 210 and the second polishing module 220 are disposed closer to each other than the polishing apparatus shown in FIG. 5.

FIG. 9 shows another polishing apparatus according to the present invention. Compared with the embodiment shown in FIG. 6, it can be seen that the table is different.

In more detail, it can be seen that the tables 110c and 110d are formed in the shape of 'ㅁ'. This is no configuration difference from the conventional table shown in Fig. 1, but the use state is different. That is, the first table 110c having a rectangular shape is provided, and the first long side A and the first short side B of the panel are adsorbed so as to protrude outwardly on the first table 110c. Similarly, a quadrangular second table 110d is provided, and the second long side C and the second short side D of the panel are adsorbed so as to protrude outwardly on the second table 110d.

Except for the tables 110c and 110d, other configurations are the same as those of the polishing apparatus of FIG. Therefore, although not shown, a vertical transfer means is also provided for the application of the small area panel p '.

According to the present invention, there is an effect that the four sides of the panel can be continuously polished without rotating the panel or the table on which the panel is adsorbed.

In addition, the long side and the short side can be polished in one panel with different areas or without changing the table. Therefore, it is very easy to install and process because of its compatibility with various panel areas. Moreover, even in large panels or long sides, the polishing quality can be improved because the entire longitudinal direction of both sides is supported and fixed at the bottom.

Claims (24)

An apparatus for polishing corners of a flat panel display panel, A first table for absorbing the panel in a state capable of polishing the first long side and the first short side; Horizontal conveying means for conveying the panel in which the first long side and the first short side are polished in a horizontal direction; A second table for absorbing the transferred panel in a state capable of polishing the second long side and the second short side; A first polishing unit for polishing the first long side of the panel adsorbed to the first table; A second polishing unit for polishing a first short side of the panel adsorbed to the first table and a second short side of the panel adsorbed to the second table; And And a third polishing portion for polishing the second long side of the panel adsorbed to the second table. The method of claim 1, And the first, second and third polishing units are driven to move along the side to be polished, respectively. The method of claim 1, And a plurality of vacuum holes are formed in the first table or the second table, and the plurality of vacuum holes are vacuum controlled by a plurality of valves. The method of claim 1, And the first table or the second table is formed in a '-' shape. The method of claim 4, wherein The first table further includes a first auxiliary table for supporting the second long side, the second short side, or the inside thereof. And the second table further comprises a second auxiliary table for supporting the first long side, the first short side, or the inside thereof. delete The method of claim 5, wherein And the first or second auxiliary table is movably installed. The method of claim 5, wherein And a plurality of vacuum holes are formed in the first or second auxiliary table. The method of claim 8, And the plurality of vacuum holes are vacuum controlled by a plurality of valves. The method of claim 1, The first table or the second table, And a rotating member which rotates while supporting the center of the panel to align the panel. The method of claim 10, And a plurality of vacuum holes are formed in the rotating member. The method of claim 10, And the rotating member is driven up and down. The method of claim 1, The first table or the second table is a polishing device of the flat panel display panel, characterized in that formed in a 'ㅁ' shape. The method of claim 1, And flattening means for adjusting the position of the panel so that the second table is horizontally transported with the second long side and the second short side adsorbed. The method of claim 14, And the alignment means is a vertical conveying means for conveying the panel in a direction orthogonal to the conveying direction of the panel by the horizontal moving means. In the method of polishing the edge of the flat panel display panel, 1) polishing a first long side of the panel and a first short side adjacent to the first long side using a first polishing unit and a second polishing unit, respectively; 2) horizontally moving the panel of which the first long side and the first short side are polished; And And 3) polishing the second long side of the horizontally transferred panel and the second short side adjacent to the second long side by using a third polishing unit and the second polishing unit, respectively. Polishing method of the panel. The method of claim 16, Step 1) or step 3), A polishing method of a flat panel display panel, wherein each polishing unit is polished while moving along each side while the panel is fixed. The method of claim 16, After step 2), 2-1) A method of polishing a flat panel display panel, further comprising the step of adjusting the position of the panel to polish the second long side and the second short side of the horizontally transferred panel. The method of claim 18, Step 2-1) is a method for polishing a flat panel display panel, characterized in that for transferring the panel in a direction perpendicular to the horizontal transfer direction of the step 2). In the method of polishing the edge of the flat panel display panel, 1) loading the first panel into the first table; 2) polishing a first long side of the first panel and a first short side adjacent to the first long side using a first polishing unit and a second polishing unit, respectively; 3) transferring the first panel of which the first long side and the first short side are polished to a second table, and loading a second panel on the first table; 4) polishing the first long side of the second panel using the first polishing unit; 5) simultaneously polishing the first short side of the second panel and the second short side of the first panel using the second polishing unit; And 6) polishing the second long side of the first panel using a third polishing unit. The method of claim 20, Step 2), 4), 5) or 6), A polishing method of a flat panel display panel, characterized in that each polishing unit is polished while moving along each side while the panels are fixed. The method of claim 20, And 4) to 6) are performed simultaneously. The method of claim 20, After step 3) above, And 3-1) adjusting the position of the first panel so as to polish the second long side and the second short side of the horizontally moved first panel. The method of claim 23, Wherein step 3-1) is characterized in that for transferring the first panel in a direction orthogonal to the horizontal transfer direction of the first panel of the step 3).

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