KR100630430B1 - An oven for bake or dry of wide LCD glass - Google Patents

Abstract

The present invention relates to an oven for firing after chemical deposition of large area LCD glass or for drying after washing.

In the present invention, a robot arm (Robot-Arm) is put into a large area LCD glass that requires firing or drying in one open type oven (Oven). Then, the heat generating means in which the rod-shaped heating means is built-in heats and dries the inside of the oven. At the same time, the process gas supplied from the outside is evenly ejected through the through hole uniformly formed in the heat generating means to help dry the glass, while the fume generated when the heavy metal is heated is mixed with oxygen in the air. Combined) is discharged to an outlet formed on one side of the oven. Therefore, the present invention allows the process gas ejected through the heating means and the heating means built in the heat generating means to dry the entire glass evenly, and in particular, the process gas removes the fume.

The present invention incorporates a rod-shaped heating means into the heat generating means so that the heating means supports the heat generating means, thereby preventing the sag of the heat generating means, which has a large area for drying the large area glass, and at the same time, the heat generating means. By simplifying the structure of the heat generating means, it is easy to manufacture, install, and maintain the heat generating means, while not only significantly reducing the thickness of the heat generating means, but also sintering the glass evenly by the process gas evenly ejected through the through hole of the heat generating means. By drying, drying efficiency is improved.

Description

An oven for bake or dry of wide LCD glass}

1 is a cross-sectional view showing the structure of a heating means applied to a conventional oven.

Figure 2 is a cross-sectional view showing the configuration of a conventional oven.

Figure 3 is a side cross-sectional view showing a detailed configuration of the hot plate of the present invention.

Figure 4 is a cross-sectional view showing a detailed configuration of the heating means of the present invention.

Figure 5 is a cross-sectional view showing the overall configuration of the present inventors oven.

Figure 6 a, b is a perspective view showing another embodiment of the present invention.

     <Description of Signs of Major Parts of Drawings>

10: heating means 11: heating means

12: through-hole 20: main body (oven)

21: heating space 22: support means

23 outlet

The present invention relates to an oven for firing after chemical deposition of large area LCD glass or for drying after washing.

In general, it is no exaggeration to say that the quality and yield of LCD glass are determined according to the processing state and cleaning state of the surface, and it is noted that the treatment and management state of the LCD glass surface is important.

As described above, an oven is used as one of devices for depositing or applying a chemical on the surface of the LCD glass, firing, or washing and drying impurities.

One or more heat generating means are installed in the above-described oven. Referring to the conventional structure of the heat generating means, as shown in FIG. 1, the heating wire 1 is formed in a constant pattern, and insulation is formed on both surfaces thereof. Mica (2; Mica) is laminated for each, and the aluminum plate (3), which is a heating plate, is laminated on the outer side of the mica (2).

However, in the case of such heat generating means, in view of the current trend of LCD glass technology, which has become larger in size, the heat generating means must also be enlarged, but there is a problem that the thickness of the stacked components is large and sagging due to its own weight. Was.

To compensate for this, as shown in the accompanying drawings, as shown in FIG. 2, the reinforcement pipe 4 is arranged to support the lower surface of the heat generating means, so that the number of heat generating means in the oven having the same volume is reduced. Was.

Particularly, in the related art, in the oven as shown in FIG. 2, hot air is blown out from the center of each stage of the oven to both sides. However, the hot air is not uniformly transferred to the LCD glass and is unevenly fired or dried. There was a problem.

An object of the present invention created in view of the above problems is to provide a heating means that does not sag even if the area is wide, easy to install and maintain the heating means, and to be able to sinter or dry the LCD glass evenly. It is to provide an oven for baking after chemical deposition of area LCD glass or drying after washing.

In order to achieve the above object, the present invention provides an oven for heating a large-area LCD glass, wherein at least one insert is inserted from one side to the other direction to generate heat by receiving power from the outside; A heat generating means configured to generate heat by heat conducted from the above-described heating means, including one or more through-holes which communicate with a plurality of holes in one side direction and evenly eject the process gas supplied from the outside; A heating space formed by the above-described heat generating means stacked at a predetermined interval inside the main body having a predetermined volume to accommodate the LCD glass to be introduced; Support means provided in the above-described heating space for supporting the LCD glass; It is formed only in one direction of the above-described heating space is characterized in that it comprises a discharge port for the LCD glass is drawn in / out, the process gas is discharged.

In the present invention, the robot arm (Robot-Arm) is injected into a large area LCD glass requiring firing or drying in one open oven (Oven). Then, the heat generating means in which the rod-shaped heating means is built-in heats and dries the inside of the oven. At the same time, the process gas supplied from the outside is evenly ejected through the through hole uniformly formed in the heating means to help dry the glass, while the fumes generated when the heavy metal is heated in the oven are oxygen in the air. Generated in combination with the discharge to an outlet formed on one side of the oven. Therefore, in the present invention, the heating means built in the heating means and the process gas ejected through the heating means dry the entire glass evenly and remove the fume at the same time.

In the present invention as described above, the above-described heating means may be, for example, an IR plate that emits far infrared rays while generating heat, which may be made of or include a metal oxide or ceramic material.

On the other hand, the heating means included in the above-described heating means of the present invention may be, for example, a rod-shaped heater having a heating wire such as nickel or chromium.

Here, the above-described heating means may be installed, for example, penetrating from one side of the heat generating means to the other side.

In addition, the above-described heating means may be inserted into, for example, an intermediate portion of one side of the heating means, and a plurality of symmetrical inserts may be inserted at both sides about the middle.

Here, the heating means satisfies any structure as long as it can support the heat generating means.

In addition, the above-described through hole may be narrower or wider, for example, from the end from which the process gas enters from the outside to the other end.

Here, the difference in the diameter of the through hole is to be able to evenly eject the process gas supplied from the outside, the structure for forming the through hole for this satisfies any.

Meanwhile, in the present invention, the above-mentioned support means may be, for example, spherical quartz, and may be three-dimensionally moved by the robot arm.

Here, the shape and the material of the support means satisfy any thing as long as it can prevent diffuse reflection without damaging the surface of the LCD glass.

On the other hand, in the present invention, the discharge port may be opened and closed by, for example, the opening and closing means installed in the main body, in this case, the opening and closing means may be formed with a separate discharge hole.

In addition, the process gas used for the purpose of drying and removing the fume in the present invention may be an N 2 (nitrogen) gas, but is not limited thereto.

An embodiment of the present invention as described above will be described with reference to the accompanying drawings.

First, the present invention, as shown in the accompanying drawings, Figures 3 to 5, the heating means 11 is inserted into one or more directions from one side to the other direction to generate heat by receiving power from the outside, and the heating means 11 and the horizontal And a plurality of holes 12a are formed in one direction and communicate with each other to generate heat by heat conducted from the above-described heating means 11, including one or more through holes 12 which evenly eject the process gas supplied from the outside. Heat generating means (10); A heating space 21 formed by the above-described heat generating means 10 stacked at a predetermined interval inside the main body 20 having a predetermined volume to accommodate the LCD glass G to be introduced therein; Support means 22 provided in the above-described heating space 21 to support the LCD glass G; It is formed to include only the one side of the above-described heating space 21 to the LCD glass (G) in / out, and comprises a discharge port 23 for discharging the process gas.

Here, the heat generating means 10 of the present invention is an IR plate that emits far infrared rays while generating heat, and is made of or include a metal oxide or ceramic material.

In addition, the above-described heating means 11 of the present invention is a rod-shaped heater for receiving a heating wire made of nickel / chromium material is inserted from one side to the other side of the heat generating means 10, the heating means 11 described above When power is supplied, heat is generated by the electrical resistance of the heating wire itself, and the generated heat heats the heat generating means 10 including the metal oxide or ceramic so that the heat generating means 10 radiates far infrared rays.

In addition, the heating means 11 supports the heat generating means 10 to minimize the sagging of the heat generating means 10 enlarged to be applied to the large area LCD glass G by its own weight.

However, the conventional heating means is composed of a thin plate-shaped hot wire plate printed with a heating wire, not only does not generate a high heat generation temperature, but also does not support the sagging of the enlarged heating means, causing deformation of the overall shape.

At this time, the above-described heating means 11 of the present invention is inserted into a hole (Hole) formed in one side middle portion of the heat generating means 10, one may be inserted in the middle portion, both sides around the middle portion Two or more may be inserted symmetrically in the.

This is selectively applied in consideration of the heat generation temperature and deflection of the heat generating means 10.

In addition, the above-described through hole 12 is preferably the same diameter as a whole, it is also preferable to evenly eject the process gas supplied from the outside with a difference in diameter.

On the other hand, the support means 22 described above prevents diffuse reflection of heat while applying spherical quartz to avoid damaging the surface of the LCD glass (G).

At this time, the support means 22 is moved according to the control route set in advance in the front, rear, left and right directions by a separate robot arm.

In the present invention, as shown in (a) and (b) of FIG. 6, the above-described hole 12a may be formed upward from the through-hole 12 in one direction of the heat generating means 10. It can also be formed up and down.

In the present invention as described above, the rod-shaped heating means is built in the heating means so that the heating means supports the heating means, thereby preventing the drooping phenomenon of the heating means that must be large for drying the large area glass. By simplifying the structure of the heat generating means, it is easy to manufacture, install, and maintain the heat generating means, while not only significantly reducing the thickness of the heat generating means, but evenly spreading the glass by the process gas evenly ejected through the through hole of the heat generating means. By baking or drying, the effect of improving a drying efficiency is acquired.

Claims (12)

In the oven for heating a large area LCD glass, the heating means 11 is inserted into one or more directions from one side to the other direction to generate heat by receiving power from the outside, and the heating means 11 is formed in a horizontal direction with the aforementioned heating means 11. Heat generating means 10 for generating heat by the heat conducted from the above-described heating means 11, including one or more through-holes 12 to communicate the plurality of holes 12a in the plane direction and evenly eject the process gas supplied from the outside and; A heating space 21 formed by the above-described heat generating means 10 stacked at a predetermined interval inside the main body 20 having a predetermined volume to accommodate the LCD glass G to be introduced therein; Support means 22 provided in the above-described heating space 21 to support the LCD glass G; The chemical vapor deposition of the large-area LCD glass, characterized in that it is formed in only one side of the heating space 21 described above, including an outlet 23 for allowing the LCD glass G to be drawn in and out, and the process gas is discharged. Oven for post-firing or drying after washing. 2. The oven of claim 1, wherein the heating means (10) comprises an IR plate that emits far infrared rays while generating heat. 3. The oven of claim 2, wherein the heat generating means (10) IR plate comprises a metal oxide, followed by firing or cleaning and drying after chemical deposition of the large area LCD glass. 3. The oven of claim 2, wherein the heat generating means (10) is an IR plate comprising a ceramic material. 3. The oven of claim 2, wherein the heat generating means (10), the IR plate itself is made of a metal oxide, followed by firing or cleaning and drying after chemical deposition of the large area LCD glass. 3. The oven of claim 2, wherein the heat generating means (10), the IR plate itself is made of a ceramic material, and then fired or chemically cleaned and dried after chemical vapor deposition of the large-area LCD glass. The method of claim 1, wherein the heating means 11 comprises a rod-shaped heater that is inserted from one side of the heat generating means 10 to the other side after firing or cleaning and drying after chemical deposition of the large-area LCD glass For the oven. 8. The oven according to claim 7, wherein a heating wire of nickel is inserted into a rod-shaped heater, which is the heating means. 8. The oven of claim 7, wherein a heating wire of chromium material is inserted in a rod-shaped heater, which is the heating means. 8. The oven of claim 7, wherein the heater, which is the heating means, is configured by inserting one or more inserts into the heat generating means. 10. The chemical vapor deposition of the large-area LCD glass according to claim 1, wherein the through hole 12 is configured to have a diameter difference from the end to which the process gas is supplied to the other side so as to evenly eject the supplied process gas. Oven for post-firing or drying after washing. 12. The oven according to claim 11, wherein the diameter of the through hole (12) gradually decreases from the end to the other direction, followed by firing or cleaning after drying the large area LCD glass.

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