KR200322741Y1 - A Tray for Conveying Glass Base Plate for a Liquid Panel - Google Patents

Abstract

The present invention relates to a tray for transporting a glass substrate for a liquid crystal panel that transports raw materials of glass, which is the front surface of the liquid crystal panel, between processes in the production process of the liquid crystal panel, and improves the structure of the tray in the process of transporting the tray by the robot. It is to minimize the deformation.

For this purpose, the support bar 5 which consists of the upper plate 1 and the lower plate 2 formed in the form of a lattice, and a plurality of stoppers 4 and side bars 3 and maintains a predetermined distance in the centrally located stopper. Is fixed to the side bar at a predetermined interval with a loading bar (6) in the glass substrate transport tray for the liquid crystal panel, the inside of the lower plate 2, the metal material in the perpendicular direction of the robot fork inserted into the bottom of the lower plate The reinforcement 11 of this is integrally inserted, and the boss 7 is formed short in the upper part of the side bar 3 located in the connection surface of the upper board 1 and the side bar.

Description

Glass Tray Transport Tray for Liquid Crystal Panels {A Tray for Conveying Glass Base Plate for a Liquid Panel}

The present invention relates to a tray for transporting a glass substrate for a liquid crystal panel that transports raw materials of glass, which is the front surface of the liquid crystal panel, between processes in the production process of the liquid crystal panel. More specifically, the structure of the tray is improved to transport the tray by the robot. It relates to a glass substrate transport tray for a liquid crystal panel to minimize the deformation of the tray in the process.

In general, glass substrates used in the manufacture of flat panel displays, such as thin film transistor-liquid crystal displays (TFT-LCDs), plasma display panels (PDPs), and electroluminescent (EL), are used in glassmelting furnaces. The molten glass material is manufactured to a predetermined size through a molding process and a cutting process.

Such glass substrates have many defects caused by various factors such as thickness, warpage, flatness, transmittance, bubbles, foreign objects, scratches, irregularities, contamination, linearity, and size error. Much attention should be paid to the transport of finished glass substrates.

As a result, the glass substrates cut to a predetermined size (1100 x 1300 mm) through the forming and cutting processes of the glass are sequentially stacked in a tray and transported between the processes.

1 is a front view showing a conventional tray and FIG. 2 is a plan view showing a cut portion of Figure 1 and Figure 3 is a side view showing a cut portion of Figure 1, the conventional tray is a top plate formed in a grid form by injection A support bar (5) consisting of (1) and a lower plate (2) and both side bars (3) and a stopper (4), the stopper (4) maintaining a predetermined distance (between the loaded glass substrate and the glass substrate) Is fixed, and the loading bar 6 is installed at both sides of the side bars 3 so as to face each other so that the glass substrates held by the forks are sequentially stacked in a tray to be transported between processes.

In order to fix the side bar 3 to the upper plate 1 and the lower plate 2 configured as described above, as shown in FIG. 5, the side surfaces of the upper and lower plates 1 and 2 and the side bars 3 are located. The bosses 7 are formed on the bar 3 to form tabs 9 for fastening the bolts 8 to the upper plate 1 and the bosses 7 to the upper and lower plates 1 and 2. The bar 3 is fixed.

However, the conventional tray having such a structure has various problems as follows.

First, the upper plate 1 that is injected in the form of a lattice, as well as the lower plate 2 to which the entire load is applied, has a large amount of deformation in bending during transport of the tray by the robot fork, and the glass substrate loaded in the tray is severely deformed. As a result, the defect rate was intensified.

Second, because the length of the boss formed on the side bar to be fixed to the top plate is long, the support bar (5) and the loading bar (6) located on the upper side can not load the glass substrate, so the utilization rate of the tray is reduced.

The present invention has been made to solve such a conventional problem, to improve the structure of the upper plate and the lower plate constituting the tray to minimize the deformation of the glass substrate loaded on the tray in the process of transporting the tray by the robot fork The purpose is to make it possible.

Another object of the present invention is to reduce the length of the boss formed on the side bar to load the glass substrate in the support bar and the loading bar located on the top.

Another object of the present invention is to ensure that the stopper is fixed to the top, the bottom plate of the grate to maximize the weak part of the connection of the side bar.

According to the aspect of the present invention for achieving the above object, the upper plate and the lower plate formed in the form of a lattice, the upper and lower plates are fixed to both sides so that the upper and lower plates to maintain a constant interval and a plurality of loading bars are installed oppositely Bar and glass for transporting a liquid crystal panel glass tray consisting of a stopper fixed to the bar at a right angle to the side bar and fixed to a plurality of support bars, a robot fork is inserted into the bottom of the lower plate inside the lower plate The glass substrate transport tray for liquid crystal panel is provided by integrally inserting a reinforcing material of a metal material in a right angle direction, and forming a boss on the upper portion of the side bar located on the connection surface of the top plate and the side bar.

1 is a front view showing a conventional tray

FIG. 2 is a plan view cut away from a portion of FIG. 1; FIG.

FIG. 3 is a side view cut away from a portion of FIG. 1; FIG.

4 is a cross-sectional view taken along the line A-A of FIG.

5 is an enlarged vertical cross-sectional view of part “B” of FIG. 3;

Figure 6 is a longitudinal cross-sectional view of the upper and lower plates showing the main parts of the subject innovation

Figure 7 is an enlarged longitudinal sectional view showing the connection portion of the top plate and the side bar

8 is a partial plan view of the upper plate showing a part where the stopper is fixed;

Explanation of symbols on main parts of drawing

1: top plate 2: bottom plate

3: side bar 4: stopper

5: support bar 6: loading bar

7: boss 11: reinforcement

12: Slaughter

Hereinafter, with reference to Figures 6 to 8 showing the present invention as an embodiment in more detail as follows.

Figure 6 is a longitudinal cross-sectional view of the upper plate and the lower plate showing the main part of the present invention and Figure 7 is an enlarged longitudinal cross-sectional view showing the connection portion of the upper plate and the side, the same parts as the conventional tray configuration of the configuration of the present invention omitting the description thereof The same reference numerals will be given.

In the present invention, the reinforcing material 11 of the metal is integrally inserted into the lower plate 2 in the direction perpendicular to the robot fork 10 inserted to transport the tray, and the upper plate 2 and the side bar. The boss 7 is formed in the side bar 3 located in the connection surface of (3) shorter than the conventional tray.

Accordingly, when the side bar 3 is coupled to the top plate 1 by the operation of fastening the bolt 8 to the tab 9 formed on the boss 7, the bottom surface and the side bar 3 of the top plate 1 Since it is possible to secure enough space between the loading bar (6) formed in the) it is possible to load the glass substrate on the top of the tray.

That is, in the prior art, only 19 sheets of glass substrates were loaded and transported in the tray. However, the present invention shortens the length of the bosses 7 formed on the side bars 3 so that the upper part of the loading bar 6 is located at the uppermost side. Since sufficient space can be secured, 20 glass substrates can be loaded and transported.

In addition, the glass plate according to the deformation of the tray in the process of transporting the tray by the robot by inserting the reinforcing material 11 of the metal body in the right angle direction of the robot fork in the inside of the upper plate 1 as well as the lower plate 2. It is possible to further minimize the deformation of.

In consideration of the weight of the tray and the production cost, the cross section of the reinforcing member 11 inserted into the upper and lower plates 1 and 2 is applied in a “U” shape as shown in FIG. 6 in the embodiment of the present invention. However, when considering only the strength of the tray it will be understood that the cross section of the reinforcement 11 can be applied in various forms such as circular or polygonal.

As described above, the reinforcing member 11 inserted into the upper and lower plates 1 and 2 is made of aluminum alloy having a light weight and relatively high strength.

Accordingly, the reinforcement material 11 inserted into the upper and lower plates 1 and 2 even when the tray is lifted using the fork of the robot to transport the glass substrates between the processes in the state in which the glass substrates are stacked in the tray of the present invention. By minimizing the amount of deformation of the upper and lower plates (about 10-20%), the tray can be transported between processes while minimizing the amount of deformation of the glass substrate loaded in the tray.

On the other hand, as shown in Fig. 8, the upper surface of the upper and lower plates 1 and 2 to which the stopper 4 is fixed is about twice as much as conventional trays (conventionally: 12.5 mm, the present invention: 22.5mm) thicker to maximize the strength and improve the durability of the tray.

As described above, the tray of the present invention has several advantages as compared to the conventional tray.

First, as well as the lower plate, the upper plate has metal reinforcement inserts in the direction perpendicular to the fork of the robot.In the state of loading a large number of glass substrates (20 sheets) into the tray, the robot's forks are placed on the tray and the glass substrate is placed between the processes. Since the deformation of the tray is minimized during transportation, the defect rate of the glass substrate is minimized.

Second, even if the tray is slightly deformed during the transport of the glass substrate, when the tray is separated from the fork of the robot, the upper and lower plates, which were slightly deformed, are reduced to the initial state by the restoring force of the reinforcing material, thereby minimizing the amount of deformation of the glass substrate loaded on the tray. Done.

Third, since the length of the boss formed on the side bar can be reduced to sufficiently secure the gap between the support bar and the loading bar located at the top and the top, 20 glass substrates can be loaded in one tray.

Fourth, it is possible to secure the thickening of the upper and lower plates to which the stopper is fixed, about twice as thick as conventionally, so that the tray can be maintained in a more solid state.

Claims (4)

A top plate and a bottom plate formed in a lattice shape, and fixed to both sides of the top plate and the bottom plate so that the top plate and the bottom plate maintain a constant gap, and a plurality of loading bars are opposed to each other, and the glass plate is fixed in a direction perpendicular to the side bar. In the glass substrate transport tray for liquid crystal panel consisting of a stopper fixed to a plurality of support bars fixed to the insertion of the support plate, the inner side of the lower plate integrally inserts a metal reinforcement in the direction perpendicular to the robot fork inserted into the bottom of the lower plate and The liquid crystal panel glass substrate transport tray, characterized in that the boss formed on the upper portion of the side bar located on the connection surface of the upper plate and the side bar short. The method of claim 1, A tray for transporting a glass substrate for a liquid crystal panel, wherein a reinforcing material made of metal is integrally inserted in the right angle direction of the robot fork in the upper plate. The method according to claim 1 or 2, The liquid crystal panel glass substrate transport tray, characterized in that the cross section of the reinforcing material inserted into the upper and lower plates is "U" shaped. The method according to claim 1 or 2, And a reinforcing material inserted into the upper and lower plates is an aluminum alloy.