KR101804833B1

KR101804833B1 - Apparatus for coating a coating composition on a glass and system including the same

Info

Publication number: KR101804833B1
Application number: KR1020160006262A
Authority: KR
Inventors: 함영재; 신재석; 안경수
Original assignee: (주)노루페인트
Priority date: 2015-06-24
Filing date: 2016-01-19
Publication date: 2017-12-05
Also published as: KR20170000759A

Abstract

The coating agent coating apparatus may comprise a coating chamber, a filter, an exhaust line, a belt conveyor mechanism, at least two injection units and a coating agent supply unit. The coating chamber may receive a glass substrate. The coating chamber may have an inner surface coated with an antistatic film. The filter may be disposed on the upper surface of the coating chamber. The exhaust line may be connected to a lower side of the coating chamber. The belt conveyor mechanism may be disposed in the coating chamber to transport the glass substrate. The spray units may spray an energy-saving coating onto the surface of the glass substrate. The coating agent supply unit may supply the energy saving coating agent to the injection units in a predetermined amount.

Description

TECHNICAL FIELD [0001] The present invention relates to a glass coating agent coating apparatus and a system including the coating apparatus.

The present invention relates to an apparatus for coating a surface of a glass substrate with a coating agent having an infrared shielding property and an ultraviolet shielding ability, and a system including such an apparatus.

The present invention also relates to an apparatus for coating a coating material having transparent color, water repellency, and hydrophilicity capable of imparting various colors to the surface of a glass substrate, and a system including such an apparatus.

The present invention also provides a glass substrate with various functions such as an anti-static coating, an anti-smudge / anti-finger coating, an anti-glare coating, An apparatus for coating an impartable coating, and a system comprising such an apparatus.

Generally, in a building, a window is an essential part for viewability, lightness, ventilation, etc., and it is possible to design various window systems such as window color and special functionality depending on the glass element and the surface film. In particular, the energy load can be released outdoors through the glass. For indoor energy saving, glass having a structure in which a coating agent is coated on a glass substrate may be used. The coating agent can be coated on the glass substrate using a coating apparatus.

According to the related art, it may not be possible to precisely spray the coating onto the glass substrate. As a result, the coating agent on the glass substrate can locally have different thicknesses, so that the energy saving effect can be lowered.

In addition, to impart various colors to glass substrates, nano-dispersed pigments can be used to express various colors in a transparent manner. It can differentiate the architectural design by expressing the design and color on the exterior of the building, and simultaneously applying it to the glass substrate with the energy saving coating, so it can satisfy energy saving effect and the exterior design of the building at the same time.

In addition, water-repellent function and hydrophilic function can be imparted to the glass substrate for imparting specific functionalities of the glass.

The present invention provides a coating agent coating apparatus for coating an energy saving coating agent.

The present invention also provides a system including the above-described apparatus.

A coating agent coating apparatus according to one aspect of the present invention may include a coating chamber, a filter, an exhaust line, a belt conveyor mechanism, at least two injection units, and a coating agent supply unit. The coating chamber may receive a glass substrate. The coating chamber may have an inner surface coated with an antistatic film. The filter may be disposed on the upper surface of the coating chamber. The exhaust line may be connected to a lower side of the coating chamber. The belt conveyor mechanism may be disposed in the coating chamber to transport the glass substrate. The spray units may spray an energy-saving coating onto the surface of the glass substrate. The coating agent supply unit may supply the energy saving coating agent to the injection units in a predetermined amount. Wherein the energy saving coating agent comprises 20 to 60 parts by weight of an organic-inorganic hybrid binder including a fluorine-based compound, 10 to 60 parts by weight of an infrared ray and ultraviolet blocking compound metal oxide, 0.1 to 1 part by weight of a leveling agent, Section. The organic-inorganic hybrid binder containing the fluorine-based compound may contain 2 to 8% by weight of a fluorinated compound, 35 to 60% by weight of a reactive alkoxysilane compound, 10 to 30% by weight of an acrylic compound, 0.2 to 2% by weight of a basic catalyst, Gel-polymerizing the mixed mixture. Each of said injection units comprising at least one injection nozzle for injecting said energy saving coating material onto said glass substrate, a horizontal movement mechanism for moving said injection nozzle along a horizontal direction, and a horizontal movement mechanism for moving said horizontal movement mechanism along a vertical direction And may include a vertical movement mechanism. Wherein the injection nozzle comprises: a nozzle body having a nozzle hole toward a surface of the glass substrate; a first injection line formed along a vertical direction from an upper surface of the nozzle body to the nozzle hole to introduce the energy saving coating agent; And a second ejection line formed along the horizontal direction from the side surface of the nozzle body to the nozzle hole and forming a vortex in the energy saving coating agent by spraying gas along the horizontal direction with the nozzle hole. The flow rate of the energy saving coating agent introduced into the injection nozzle may be from 5.0 ml / min to 10 ml / min. The spray pressure of the spray nozzle for spraying the energy saving coating agent may be 0.2 Mpa to 0.3 Mpa.

In the exemplary embodiments, the spacing between the spray nozzles may be 200 mm. The distance between the injection nozzle and the glass substrate may be 200 mm.

In exemplary embodiments, the exhaust line may be connected to a lower side of the coating chamber adjacent the inlet of the coating chamber into which the glass substrate is to be carried. An exhaust pipe extending to the outlet of the coating chamber to which the glass substrate is taken out may be connected to the exhaust line.

In exemplary embodiments, the antistatic layer may include zinc (Zn), tin (Sn), or antimony (Sb).

In exemplary embodiments, the belt conveyor mechanism may include a drive motor, a pair of belt shafts rotated by the drive motor, a belt wound around the belt shafts to transport the glass substrate, And a glass substrate detection sensor for sensing the introduction of the glass substrate and activating the driving motor.

In exemplary embodiments, the belt conveyor mechanism may include a belt sensor for sensing a departure of the belt, a servo motor driven by the belt sensor, and a controller for returning the detached belt to its original position And may further include a return lever.

In the exemplary embodiments, the first injection line and the nozzle holes may be arranged along one vertical line.

In exemplary embodiments, the coating agent supply unit may include a tank in which the energy-saving coating agent is stored, and a metering pump disposed between the tank and the metering unit for constantly discharging the energy-saving coating material toward the metering unit. . &Lt; / RTI >

In exemplary embodiments, the injection unit may further include a horizontal ruler and a vertical ruler for horizontal and vertical positioning of the injection nozzle.

A coating agent coating system according to another aspect of the present invention may include a cleaning apparatus, an air blowing apparatus, a static eliminating apparatus, a coating apparatus, and a clean booth. The cleaning apparatus can clean the glass substrate. The air blowing apparatus may form an air curtain on the surface of the glass substrate. The static eliminator can remove static electricity from the surface of the glass substrate. The coating apparatus may include a coating chamber for receiving the glass substrate, a belt conveyor mechanism disposed in the coating chamber for transferring the glass substrate, and a spray unit for spraying an energy-saving coating agent onto the surface of the glass substrate . The clean booth may receive the static eliminator and the coating apparatus. Wherein the energy saving coating agent comprises 20 to 60 parts by weight of an organic-inorganic hybrid binder including a fluorine-based compound, 10 to 60 parts by weight of an infrared ray and ultraviolet blocking compound metal oxide, 0.1 to 1 part by weight of a leveling agent, Section. The organic-inorganic hybrid binder containing the fluorine-based compound may contain 2 to 8% by weight of a fluorinated compound, 35 to 60% by weight of a reactive alkoxysilane compound, 10 to 30% by weight of an acrylic compound, 0.2 to 2% by weight of a basic catalyst, Gel-polymerizing the mixed mixture. Wherein the coating apparatus comprises a coating chamber having an inner surface coated with an antistatic coating, the filter disposed on an upper surface of the coating chamber, an exhaust line connected to a lower side of the coating chamber, At least two spray units for spraying an energy saving coating agent onto the surface of the glass substrate and a coating agent supply for supplying the energy saving coating agent to the spray units in a predetermined amount, Unit. &Lt; / RTI > Each of said injection units comprising at least one injection nozzle for injecting said energy saving coating material onto said glass substrate, a horizontal movement mechanism for moving said injection nozzle along a horizontal direction, and a horizontal movement mechanism for moving said horizontal movement mechanism along a vertical direction And may include a vertical movement mechanism. Wherein the injection nozzle comprises: a nozzle body having a nozzle hole toward a surface of the glass substrate; a first injection line formed along a vertical direction from an upper surface of the nozzle body to the nozzle hole to introduce the energy saving coating agent; And a second ejection line formed along the horizontal direction from the side surface of the nozzle body to the nozzle hole and forming a vortex in the energy saving coating agent by spraying gas along the horizontal direction with the nozzle hole. The flow rate of the energy saving coating agent introduced into the injection nozzle may be from 5.0 ml / min to 10 ml / min. The spray pressure of the spray nozzle for spraying the energy saving coating agent may be 0.2 Mpa to 0.3 Mpa.

In exemplary embodiments, the cleaning apparatus includes at least one cleaning nozzle for spraying cleaning water onto the surface of the glass substrate, a brush rotatably connected to the cleaning nozzle for brushing the surface of the glass substrate, And at least one drying nozzle for spraying the drying air onto the glass substrate onto which the washing water is sprayed.

In exemplary embodiments, the air blowing device may include an air knife having at least one air injection hole disposed on the top of the glass substrate surface and for injecting air obliquely to the glass substrate surface have.

In the exemplary embodiments, the charge eliminating device may include a charge removing member disposed on the glass substrate surface, and a power source for supplying current to the charge member to charge the charge removing member.

In exemplary embodiments, at least one filter may be disposed on the upper surface of the clean booth.

According to the present invention described above, the cleaning device, the air blowing device, and the static eliminator can remove the foreign substance of the glass substrate by three orders. Further, since the coating operation is performed in the coating chamber in the clean booth, external foreign matter can be prevented from being adsorbed on the glass substrate.

Further, since the spray nozzle injects the vortex-type energy-saving coating agent onto the glass substrate, scattering of the energy-saving coating agent from the glass substrate can be suppressed. Therefore, the energy saving coating agent can be precisely coated on the glass substrate to a uniform thickness.

In addition, since the metering pump supplies the energy saving coating agent uniformly to the injection nozzle, the injection nozzle can more uniformly coat the energy saving coating agent on the glass substrate.

1 is a block diagram illustrating a coating system in accordance with an embodiment of the present invention.
2 is a front view showing a cleaning apparatus of the coating agent coating system shown in FIG.
3 is a front view of an air blowing apparatus of the coating system shown in Fig.
4 is a front view showing the static eliminating apparatus of the coating system shown in Fig.
5 is a front view showing a coating apparatus of the coating agent coating system shown in FIG.
6 is a plan view showing the coating apparatus shown in Fig.
7 is a left side view showing the coating apparatus shown in Fig.
8 is a front view showing a coating chamber of the coating apparatus shown in Fig.
Fig. 9 is a plan view showing the coating chamber shown in Fig. 8. Fig.
10 is a right side view of the coating chamber shown in FIG.
11 is a left side view showing the coating chamber shown in Fig.
12 is a front view showing a belt conveyor mechanism of the coating apparatus shown in Fig.
13 is a plan view of the belt conveyor mechanism shown in Fig.
14 is a left side view showing the belt conveyor mechanism shown in Fig.
Fig. 15 is a front view showing the injection unit of the coating apparatus shown in Fig. 5; Fig.
16 is a plan view showing the injection unit shown in Fig.
17 is a right side view showing the injection unit shown in Fig.
18 is a front view showing a scale of the injection unit shown in Fig.
19 is a plan view showing the scale shown in Fig.
20 is a right side view showing a ruler shown in Fig.
Fig. 21 is a sectional view showing the injection nozzle of the injection unit shown in Fig. 15. Fig.
22 is a front view showing a coating agent supply unit of the coating agent coating system shown in Fig.
23 is a plan view showing the coating agent supply unit shown in Fig.
24 is a right side view showing the coating agent supply unit shown in Fig.
25 is a front view showing a heat treatment apparatus of the coating agent coating system shown in Fig.
Figure 26 is a front view of a clean booth of the coating system shown in Figure 1;
27 is a plan view showing the clean booth shown in Fig.
28 is a cross-sectional view showing the arrangement relationship between the injection unit and the glass substrate for testing the injection performance of the injection unit.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The present invention is capable of various modifications and various forms, and specific embodiments are illustrated in the drawings and described in detail in the text. It should be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. Like reference numerals are used for like elements in describing each drawing.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, the terms "comprises", "having", and the like are used to specify that a feature, a number, a step, an operation, an element, a part or a combination thereof is described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

1 is a block diagram illustrating a coating system in accordance with an embodiment of the present invention.

1, a coating system according to the present embodiment may include a cleaning apparatus 100, an air blowing apparatus 200, a static eliminator 300, a coating apparatus 400, and a heat treatment apparatus 500 .

The cleaning apparatus 100 can remove foreign matter from the glass substrate using a cleaning liquid. In addition, the cleaning apparatus 100 may use a cleaning liquid to which an abrasive is added. Further, the cleaning apparatus 100 may dry the glass substrate to remove the cleaning liquid from the glass substrate.

The air blowing apparatus 200 may be disposed adjacent to the cleaning apparatus 100. The glass substrate from which the foreign substance has been removed by the cleaning apparatus 100 can be carried into the air blowing apparatus 200. The air blowing apparatus 200 can form an air curtain on the glass substrate by injecting air obliquely to the glass substrate. The air curtain can prevent foreign substances from adhering to the cleaned glass substrate. In addition, air ejected from the air blowing apparatus 200 to the glass substrate may remove foreign matter remaining on the glass substrate.

The static eliminator 300 may be disposed adjacent to the air blowing apparatus 200. The glass substrate from which the foreign substance is removed by the air blowing apparatus 200 can be carried into the static eliminator 300. [ The static eliminator 300 can remove the charged material on the glass substrate using static electricity. The fine electrification substance on the glass substrate which has not been removed by the cleaning apparatus 100 and the air blowing apparatus 200 can be removed by the static eliminator 300. [

The coating apparatus 400 may be disposed adjacent to the static eliminator 300. The glass substrate on which the fine electrification substance has been removed by the static eliminator 300 can be carried into the coating apparatus 400. [ The coating apparatus 400 may coat the glass substrate with an energy saving coating agent. In addition, the coating apparatus 400 may include a coating agent supply unit 500 for receiving a uniform amount of the energy-saving coating agent.

In this embodiment, the coatings can be used in various applications such as energy saving coatings, transparent color coatings, water repellent coatings, hydrophilic coatings, anti-static coatings, anti-smudge / anti-finger coatings, anti- glare coatings, hard coatings, and the like. Further, the glass coated with the coating agent using the coating apparatus 400 has a solar radiation transmittance of 25 to 55%, a visible light transmittance of 60 to 80%, a shielding coefficient of 0.4 to 0.7, a solar heat gain coefficient of 0.2 to 0.6 , A heat conduction rate of 5.0 to 6.0 W / m < 2 > K, and an ultraviolet light blocking rate of 90 to 99%.

Wherein the energy saving coating agent comprises 20 to 60 parts by weight of an organic-inorganic hybrid binder including a fluorine-based compound, 10 to 60 parts by weight of an infrared ray and ultraviolet blocking compound metal oxide, 0.1 to 1 part by weight of a leveling agent, Section. The organic-inorganic hybrid binder containing the fluorine-based compound may contain 2 to 8% by weight of a fluorinated compound, 35 to 60% by weight of a reactive alkoxysilane compound, 10 to 30% by weight of an acrylic compound, 0.2 to 2% by weight of a basic catalyst, Gel-polymerizing the mixed mixture.

In addition, the glass may include a glass plate and a LOW-E coating film to face the energy saving type coating film in order to maximize the heat insulating effect. However, coatings coated with a coating may have other physical properties besides those described above.

Further, the glass coated with the transparent color coating agent using the coating apparatus 400 may exhibit black, red, yellow, green, and blue while maintaining transparency, and various colors may be mixed by mixing the colors. In addition, the energy saving type coating material may include a color transparent coating film and an energy saving type coating film so as to face the coated glass. However, a glass coated with a color transparent coating agent may have other physical properties besides the above physical properties.

Also, a glass coated with a water-repellent coating agent and a hydrophilic coating agent using the coating apparatus 400 can be realized.

The heat treatment apparatus 600 may be disposed adjacent to the coating apparatus 400. The glass substrate coated with the energy saving coating agent may be brought into the heat treatment apparatus 600. [ The heat treatment apparatus 600 can heat treat the energy saving coating agent to cure the energy saving type coating agent on the glass substrate.

Additionally, the coating agent coating system may further comprise a clean booth (700). The clean booth 700 can receive the static eliminator 300 and the coating apparatus 400. The clean booth 700 can prevent foreign substances from entering the static eliminator 300 and the coating apparatus 400.

2 is a front view showing a cleaning apparatus of the coating agent coating system shown in FIG.

Referring to FIG. 2, the cleaning apparatus 100 may include a cleaning chamber 110, a conveyor 120, a cleaning nozzle 130, a brush 140, and a drying nozzle 150. The cleaning chamber 110 can receive the glass substrate. The conveyor 120 may be disposed inside the cleaning chamber 110 to transport the glass substrate. The conveyor 120 may include a roller conveyor, a belt conveyor, and the like.

The cleaning nozzle 130 may be disposed on the upper portion of the conveyor 120. The cleaning nozzle 130 can clean the glass substrate by spraying the cleaning liquid onto the glass substrate conveyed by the conveyor 120. [ Additionally, an abrasive may be added to the cleaning liquid.

The brush 140 may be rotatably connected to the lower surface of the cleaning nozzle 130. The brush 140 may brush the glass substrate from which the cleaning liquid has been sprayed from the cleaning nozzle 130 to remove the cleaning liquid and the foreign substance from the glass substrate.

The drying nozzle 150 may be disposed on top of the conveyor 120. The drying nozzle 150 can dry the glass substrate by spraying dry air onto the glass substrate. Therefore, the moisture on the glass substrate can be removed by the drying nozzle 150. [

3 is a front view of an air blowing apparatus of the coating system shown in Fig.

Referring to FIG. 3, the air blowing apparatus 200 may include an air blowing chamber 210, a conveyor 220, and an air knife 230. The air blowing chamber 210 can receive the glass substrate that has been cleaned by the cleaning apparatus 100. The conveyor 220 is disposed inside the air blowing chamber 210 to transport the glass substrate. The conveyor 220 may include a roller conveyor, a belt conveyor, and the like.

The air knife 230 may be disposed on top of the conveyor 220. The air knife 230 may include a knife body 232, an air inflow hole 234, and an air vent hole 236. The air inlet hole 234 may be formed on the upper surface of the knife body 232. High pressure air can be introduced into the interior of the knife body 232 through the air inlet hole 234. [ An air jet hole 236 may be formed on the side of the knife body 232. The air jet hole 236 can form an air curtain on the glass substrate by jetting high-pressure air toward the glass substrate. In particular, the air injection holes 236 are formed obliquely to the surface of the glass substrate to form an inclined air curtain with the surface of the glass substrate. High-pressure air is inclinedly incident on the surface of the glass substrate from the air injection hole 236, so that the foreign substances remaining on the glass substrate can be removed. Further, the air curtain can prevent foreign substances from being adsorbed on the glass substrate.

4 is a front view showing the static eliminating apparatus of the coating system shown in Fig.

Referring to FIG. 4, the static eliminator 300 may include a static elimination chamber 310, a conveyor 320, a static eliminator 330, and a power source 340. The charge elimination chamber 310 can receive the glass substrate. The conveyor 320 is disposed inside the charge elimination chamber 310, and can transport the glass substrate. The conveyor 320 may include a roller conveyor, a belt conveyor, and the like.

The discharge bar 330 may be disposed on top of the conveyor 320. The power supply 340 can supply current to the charge bar 330 to charge the charge bar 330. By the attractive force between the charged electrification bar 330 and the electrification material on the glass substrate, the electrification material can be adsorbed to the electrification bar 330. [ Thus, the fine charged material can be removed from the glass substrate.

FIG. 5 is a front view showing a coating apparatus of the coating system of FIG. 1, FIG. 6 is a plan view of the coating apparatus of FIG. 5, and FIG. 7 is a left side view of the coating apparatus of FIG.

5 through 7, the coating apparatus 400 may include a coating chamber 410, a belt conveyor mechanism 420, and a jetting unit 450. The belt conveyor mechanism 420 may be disposed inside the coating chamber 410 to transport the glass substrate. The injection unit 450 may be disposed on top of the belt conveyor mechanism 420 to inject energy-saving coatings onto the glass substrate.

FIG. 8 is a front view showing a coating chamber of the coating apparatus shown in FIG. 5, FIG. 9 is a plan view showing the coating chamber shown in FIG. 8, FIG. 10 is a right side view showing the coating chamber shown in FIG. 11 is a left side view showing the coating chamber shown in Fig.

8 to 11, the coating chamber 410 may include a first door 417 and a second door 418. [ The first door 417 may be disposed on the right side of the coating chamber 410 into which the glass substrate is introduced. The second door 418 may be disposed on the left side of the coating chamber 410 where the glass substrate is taken out.

The exhaust line 412 may be connected to the lower surface of the right side of the coating chamber 410. An exhaust pipe 414 connected to the exhaust line 412 may extend to the left side of the coating chamber 410 through a lower portion of the coating chamber 410. Accordingly, the foreign substances located in the inner right region of the coating chamber 410 can be exhausted directly to the exhaust line 412. [ In addition, the foreign substance located in the inner left region of the coating chamber 410 may be exhausted to the exhaust line 412 through the exhaust pipe 414. [

A filter 415 for removing foreign substances introduced into the coating chamber 410 may be disposed on the upper surface of the coating chamber 410. In addition, an antistatic film 416 may be coated on the inner surface of the coating chamber 410. The antistatic film 416 may include zinc (Zn), tin (Sn), antimony (Sb), and the like.

12 is a front view showing a belt conveyor mechanism of the coating apparatus shown in Fig. 5, Fig. 13 is a plan view showing the belt conveyor mechanism shown in Fig. 12, and Fig. 14 is a left side view to be.

Referring to Figures 12-14, the belt conveyor mechanism 420 may include a drive motor 422, a pair of belt shafts 424, 425, and a belt 426.

The drive motor 422 may be connected to one of the pair of belt shafts 424, 425. Thus, the other belt shaft 425 can be idle rotated. The pair of belt shafts 424 and 425 can be disposed along a direction substantially perpendicular to the carrying-in direction of the glass substrate. The belt 426 is wound on a pair of belt shafts 424 and 425 and can be rotated in an endless track manner. The glass substrate can be placed on the belt 426 and transported by the endless track rotation of the belt 426. [ The entire upper surface of the belt 426 supports the lower surface of the glass substrate, so that the glass substrate can be stably supported.

The belt conveyor mechanism 420 may further include a glass substrate detection sensor 428 for sensing the introduction of the glass substrate into the coating chamber 410 and actuating the driving motor 422.

The belt conveyor mechanism 420 may further include a belt detection sensor 434, a servo motor 430, and a return lever 432. [ The belt 426 may be offset in either end direction of the belt shafts 424 and 425 as the belt 426 rotates between the pair of belt shafts 424 and 425 for an extended period of time. As such, the biased belt 426 will not be able to accurately transport the glass substrate and will not be able to accurately and uniformly coat the energy saving coating on the glass substrate.

In order to prevent this, a pair of belt detection sensors 434 may be disposed adjacent to both sides of the belt 426. The belt detection sensor 434 can detect that the belt 426 is biased to the left or right. The belt detection sensor 434 may include a proximity sensor. The servo motor 430 may be driven by the sensing signal of the belt sensor 434. [ The return lever 432 may be connected to the servo motor 430. [ The return lever 432 can return the belt 426 to the original position by the driving force of the servo motor 430. [

Fig. 15 is a front view showing the spraying unit of the coating apparatus shown in Fig. 5, Fig. 16 is a plan view showing the spraying unit shown in Fig. 15, and Fig. 17 is a right side view showing the spraying unit shown in Fig.

15 through 17, the ejection unit 450 may include an ejection nozzle 460, a horizontal movement mechanism 470, and a vertical movement mechanism 480.

At least one or more (two in this embodiment) injection nozzles 460 may be used. The horizontal movement mechanism 470 can move the injection nozzle 460 along the horizontal direction. The vertical movement mechanism 480 can move the horizontal movement mechanism 470 along the vertical direction. Accordingly, the injection nozzle 460 can be moved to a desired position on the glass substrate along the horizontal and horizontal directions by the horizontal movement mechanism 470 and the vertical movement mechanism 480. The driving source of the horizontal movement mechanism 470 and the vertical movement mechanism 480 may include a motor, a cylinder, and the like.

The injection nozzle 460 may be movably connected to the pair of vertical guides 472. The vertical guides 472 may be movably connected to the pair of horizontal guides 474. Accordingly, the horizontal and vertical movement of the injection nozzle 460 can be guided by the horizontal guide 474 and the vertical guides 472. [

FIG. 18 is a front view showing a ruler of the injection unit shown in FIG. 15, FIG. 19 is a plan view showing a ruler shown in FIG. 18, and FIG. 20 is a right side view showing a ruler shown in FIG.

18-20, the injection unit 450 may further include a horizontal ruler 482 and a vertical ruler 484. [ The injection nozzle 460 may be movably connected to the horizontal scale 482 along the horizontal direction. The horizontal ruler 482 may be movably connected to the vertical ruler 484 along the vertical direction. Accordingly, the position of the injection nozzle 460 can be accurately ascertained through the horizontal ruler 482 and the vertical ruler 484.

Fig. 21 is a sectional view showing the injection nozzle of the injection unit shown in Fig. 15. Fig.

Referring to FIG. 21, the injection nozzle 460 may include a nozzle body 462, a first injection line 466, and a second injection line 468.

The nozzle body 462 may have a substantially cylindrical shape extending along the vertical direction. A nozzle hole 464 for spraying the energy saving coating agent may be formed at the lower end of the nozzle body 462. [

The first injection line 466 may extend from the top surface of the nozzle body 462 to the nozzle bore 464. A liquid energy-saving coating agent may be introduced into the first injection line 466. In particular, the first jet line 466 and the nozzle hole 464 may have a shape extending along one vertical line. The straight line structure of the first injection line 466 and the nozzle hole 464 can reduce the resistance and friction of the energy saving coating agent. As a result, the service life of the injection nozzle 460 can be extended.

The second injection line 468 may extend along the horizontal direction from the side of the nozzle body 462 to the nozzle hole 464. A high pressure gas may be introduced into the second injection line 468.

Thus, the liquid energy-saving coating material supplied to the nozzle hole 464 through the first injection line 466 has a vertical motion force, while the nozzle hole 464 is communicated through the second injection line 468, The gas supplied to the reaction vessel can have a horizontal movement force. As a result, a vortex can be formed in the energy-saving coating agent sprayed from the nozzle hole 464 because strong pressure gas collides with the liquid-phase energy-saving coating agent flowing in the vertical direction along the horizontal direction. The vortex-type energy-saving coating agent can be precisely deposited on the surface of the glass substrate without scattering from the surface of the glass substrate.

22 is a front view showing a coating agent supply unit of the coating agent coating system shown in Fig. 1, Fig. 23 is a plan view showing the coating agent supply unit shown in Fig. 22, Fig. 24 is a right side view .

22 to 24, the spraying apparatus 400 may further include a coating agent supply unit 500. [ The coating agent supply unit 500 may include a frame 510, a tank 530, a metering pump 540 and a control valve 550.

The frame 510 may be separately disposed outside the coating chamber 410. A caster 520 may be installed at the lower ends of the frame 510. Accordingly, the caster 520 can be used to easily move the frame 510 to a desired position.

The tank 530 may be mounted on the upper surface of the frame 510. Tank 530 may store energy-saving coatings. The tank 530 is connected to the spray nozzle 460 so that an energy saving coating agent can be supplied from the tank 530 to the spray nozzle 460.

The metering pump 540 may be disposed between the tank 530 and the injection nozzle 460. The metering pump 540 can continuously discharge the energy-saving coating agent by a predetermined amount. Therefore, a constant amount of the energy saving coating agent can always be supplied to the spraying nozzle 460. In this embodiment, since there are two injection nozzles 460, the metering pump 540 can also be two.

The control valve 550 may be installed between the tank 530 and the metering pump 540 to selectively control the supply of energy-saving coatings. Drain valve 560 may be connected to control valve 550 for the release of the remaining energy-saving coating in tank 530. [

25 is a front view showing a heat treatment apparatus of the coating agent coating system shown in Fig.

Referring to FIG. 25, the thermal processing apparatus 600 can heat-treat the glass substrate coated with the energy-saving coating agent by the coating apparatus 400. The heat treatment apparatus 600 may include a heat treatment chamber 610, a conveyor 620, and a heater 630. The heater 630 can heat the glass substrate conveyed into the heat treatment chamber 610 by the conveyor 620 to cure the energy saving coating agent.

FIG. 26 is a front view showing a clean booth of the coating agent coating system shown in FIG. 1, and FIG. 27 is a plan view showing the clean booth shown in FIG. 26.

26 and 27, the clean booth 700 accommodates the static eliminator 300 and the coating apparatus 400 to prevent foreign substances from entering the static eliminator 300 and the coating apparatus 400 can do.

A filter, particularly a HEPA filter 710, for removing foreign contaminants can be disposed on the upper surface of the clean booth 700. The exhaust line 720 may be connected to the lower end of the clean booth 700.

Hereinafter, the operation of coating the energy saving coating agent on the glass substrate using the coating system having the above structure will be described in detail.

When the glass substrate is carried into the cleaning chamber 110 by the conveyor 120, the cleaning liquid can be injected from the cleaning nozzle 130 into the glass substrate. Further, the brush 140 may brush the glass substrate on which the cleaning liquid is sprayed to clean the glass substrate. The drying nozzle 150 can blow dry air to the glass substrate to dry the glass substrate.

When the glass substrate cleaned by the conveyor 220 is carried into the air blowing chamber 210, air can be injected obliquely from the air knife 230 into the glass substrate. The air can form an air curtain on the glass substrate while removing foreign substances from the glass substrate. Therefore, it is possible to prevent foreign matter from being attracted to the surface of the glass substrate by the air curtain.

When the glass substrate is carried into the charge elimination chamber 310 by the conveyor 320, the charge substance of the glass substrate can be adsorbed on the charged electrification bar 330. By this antistatic action, the fine charged material of the glass substrate can be removed.

The glass substrate can be carried into the coating chamber 410 by the belt conveyor mechanism 420. The glass substrate detection sensor 428 can sense that the glass substrate is brought into the coating chamber 410. [ The drive motor 422 of the belt conveyor mechanism 420 can be operated by the detection signal of the glass substrate detection sensor 428. [ The belt 424 can be rotated in an endless track manner along the belt axes 424 and 425 since the belt shaft 424 is rotated by the drive motor 422. [ The glass substrate can be placed on the belt 426 and transported with the belt 426.

On the other hand, if the belt 426 is offset to either side, the belt 426 may be close to any one of the belt sensing sensors 434. The corresponding belt detection sensor 434 can sense the bias of the belt 426 and operate the servo motor 430. [ The servo motor 430 can return the belt 426 having the return lever 434 to its original position again.

The injection nozzles 460 can be arranged in advance in the position where the injection efficiency is the best by the horizontal movement mechanism 470 and the vertical movement mechanism 480. [ In addition, the position of the injection nozzle 460 can be accurately ascertained through the horizontal ruler 482 and the vertical ruler 484.

The coating agent supply unit 500 can uniformly supply the energy saving coating agent to the spray nozzle 460. The liquid energy-saving coating agent stored in the tank 530 may be supplied to the injection nozzle 460 by a predetermined amount by the metering pump 540. Accordingly, the injection nozzle 460 can uniformly coat the glass substrate with the liquid energy-saving coating agent.

The liquid energy-saving coating agent may be supplied to the nozzle hole 464 through the first injection line 466. The high pressure gas may be supplied to the nozzle hole 464 through the second injection line 468. Energy-type coating agent can be sprayed from the nozzle hole 464 because the high-pressure gas collides with the energy-saving coating material flowing in the vertical direction along the horizontal direction.

A glass substrate coated with an energy saving coating agent may be introduced into the heat treatment chamber 610. The heater 630 can heat the glass substrate to cure the energy saving coating agent.

In this embodiment, a glass substrate coated with an energy saving coating agent may have an ultraviolet blocking function and an infrared blocking function. To this end, it may be required that the nanooxidized inorganic material of the energy saving coating agent is uniformly distributed on the glass substrate. Accordingly, it may be required to uniformize the particle size distribution of the energy-saving coating material sprayed from the spray nozzles 460. Particularly, when the droplet diameter of the energy saving coating agent injected from the injection nozzles 460 is 10 占 퐉 to 15 占 퐉, desired ultraviolet and infrared ray blocking functions can be imparted to the glass substrate.

Performance test of spray nozzles

28 is a cross-sectional view showing the arrangement relationship between the injection nozzle and the glass substrate for testing the injection performance of the injection nozzle.

Referring to Fig. 28, the gap g between the injection nozzles 460 is set to 200 mm. The distance d between the injection nozzles 460 and the glass substrate S was set to 200 mm. Under these conditions, the flow rate of the energy saving coating material introduced into the spray nozzles 460 and the spray pressure of the spray nozzles 460 are changed to measure the liquid crystal diameter of the energy saving coating material sprayed from the spray nozzles 460 Respectively. The measured results are shown in the following table.

As shown in the above table, when the energy-saving coating agent has a flow rate of 5.0 ml / min to 10 ml / min and the spraying pressure of the spray nozzles 460 is 0.2 to 0.3 MPa, And a liquid crystal diameter of 15 mu m.

When the distance g between the injection nozzles 460 is 200 mm and the distance d between the injection nozzles 460 and the glass substrate S is 200 mm, the liquid crystal diameter of the energy- 15 mu m. Particularly, the central portion of the energy saving coating agent injected from one injection nozzle 460 can be uniformly distributed. On the other hand, the edge portion of the energy saving coating agent may have an uneven distribution relative to the central portion. Therefore, it is found that two or more spray nozzles 460 are disposed, and the edge portions of the energy-saving coating agent sprayed from the neighboring spray nozzles 460 overlap each other to form a uniform particle distribution diagram.

As described above, according to the present embodiment, the cleaning device, the air blowing device, and the static eliminator can remove the foreign substances on the glass substrate by three orders. Further, since the coating operation is performed in the coating chamber in the clean booth, external foreign matter can be prevented from being adsorbed on the glass substrate.

Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. And changes may be made without departing from the spirit and scope of the invention.

100; A cleaning device 110; Cleaning chamber
120; Conveyor 130; Cleaning nozzle
140; Brush 150; Drying nozzle
200; An air blowing device 210; Air blowing chamber
220; Conveyor 230; Air knife
232; Knife body 234; Air inlet ball
236; Air blower 300; Static eliminator
310; A charge elimination chamber 320; conveyor
330; Static elimination bar 340; power
400; Coating device 410; Coating chamber
412; An exhaust line 414; vent pipe
416; An antistatic film 417; The first door
418; A second door 415; filter
420; A belt conveyor mechanism 422; Drive motor
424, 425; A belt shaft 426; belt
428; Glass substrate detection sensor 430; Servo Motor
432; Return lever 434; Belt detection sensor
450; An injection unit 460; Injection nozzle
462; Nozzle body 464; Nozzle ball
466; A first injection line 468; The second injection line
470; A horizontal movement mechanism 472; Vertical guide
474; A horizontal guide 480; Vertical movement mechanism
482; Horizontal ruler 484; Vertical ruler
500; Coating agent supply unit 510; frame
520; Casters 530; Tank
540; A metering pump 550; Control valve
560; Drain valve 600; Heat treatment device
610; A heat treatment chamber 620; conveyor
630; Heater 700; Clean booth
710; Filter 720; Exhaust line

Claims

A coating chamber for containing a glass substrate and having an inner surface coated with an antistatic film;
A filter disposed on an upper surface of the coating chamber;
An exhaust line connected to a lower side of the coating chamber;
A belt conveyor mechanism disposed in the coating chamber for conveying the glass substrate;
At least two spray units for spraying an energy-saving coating onto the surface of the glass substrate; And
And a coating agent supply unit for supplying the energy saving coating agent in a predetermined amount to the spray units,
The energy saving coating agent
20 to 60 parts by weight of an organic-inorganic hybrid binder containing a fluorine-based compound;
10 to 60 parts by weight of an infrared and ultraviolet blocking compound metal oxide;
0.1 to 1 part by weight of a leveling agent; And
15 to 25 parts by weight of an organic solvent,
The organic-inorganic hybrid binder containing the fluorine-based compound may contain 2 to 8% by weight of a fluorinated compound, 35 to 60% by weight of a reactive alkoxysilane compound, 10 to 30% by weight of an acrylic compound, 0.2 to 2% by weight of a basic catalyst, Gel-polymerizing the mixed mixture,
Each of the injection units
At least one spray nozzle for spraying the energy saving coating agent onto the glass substrate;
A horizontal movement mechanism for moving the injection nozzle along a horizontal direction; And
And a vertical movement mechanism for moving the horizontal movement mechanism along a vertical direction,
The injection nozzle
A nozzle body having a nozzle hole facing the surface of the glass substrate;
A first injection line formed along a vertical direction from an upper surface of the nozzle body to the nozzle hole, into which the energy saving coating agent is introduced; And
And a second ejection line formed along the horizontal direction from the side surface of the nozzle body to the nozzle hole and forming a vortex in the energy saving coating agent by spraying gas along the horizontal direction with the nozzle hole,
Wherein the flow rate of the energy saving coating agent introduced into the spray nozzle is 5.0 ml / min to 10 ml / min, and the spray pressure of the spray nozzle for spraying the energy saving coating agent is 0.2 Mpa to 0.3 Mpa.

2. The coating agent coating apparatus according to claim 1, wherein an interval between the injection nozzles is 200 mm, and a distance between the injection nozzle and the glass substrate is 200 mm.

2. The apparatus according to claim 1, wherein the exhaust line is connected to a lower side of a side of the coating chamber adjacent to an inlet of the coating chamber into which the glass substrate is to be introduced and extends to an outlet of the coating chamber Coating apparatus to which exhaust pipes are connected.

The coating agent coating apparatus according to claim 1, wherein the antistatic layer comprises zinc (Zn), tin (Sn), or antimony (Sb).

The apparatus of claim 1, wherein the belt conveyor mechanism
A drive motor;
A pair of belt shafts rotated by the drive motor;
A belt wound around the belt shafts and conveying the glass substrate; And
And a glass substrate detection sensor for sensing that the glass substrate has been inserted into the belt, and activating the driving motor.

The apparatus of claim 5, wherein the belt conveyor mechanism
A belt detection sensor for detecting a deviation of the belt;
A servo motor driven by the belt sensor; And
And a return lever for returning the separated belt to the home position by the servomotor.

The apparatus of claim 1, wherein the first injection line and the nozzle holes are arranged along one vertical line.

The apparatus according to claim 1, wherein the coating agent supply unit
A tank in which the energy saving coating agent is stored; And
And a metering pump disposed between the tank and the spraying unit for uniformly discharging the energy saving coating agent toward the spraying unit.

2. The apparatus according to claim 1, wherein the injection unit
Further comprising a horizontal ruler and a vertical ruler for horizontal and vertical positioning of the injection nozzle.

A cleaning device for cleaning the glass substrate;
An air blowing device for forming an air curtain on the surface of the glass substrate;
A static eliminator for removing static electricity from the surface of the glass substrate;
A coating apparatus comprising a coating chamber for containing the glass substrate, a belt conveyor mechanism disposed in the coating chamber for transferring the glass substrate, and a spray unit for spraying an energy saving coating agent onto the surface of the glass substrate; And
A clean booth for receiving the static eliminator and the coating apparatus,
The energy saving coating agent
20 to 60 parts by weight of an organic-inorganic hybrid binder containing a fluorine-based compound;
10 to 60 parts by weight of an infrared and ultraviolet blocking compound metal oxide;
0.1 to 1 part by weight of a leveling agent; And
15 to 25 parts by weight of an organic solvent,
The organic-inorganic hybrid binder containing the fluorine-based compound may contain 2 to 8% by weight of a fluorinated compound, 35 to 60% by weight of a reactive alkoxysilane compound, 10 to 30% by weight of an acrylic compound, 0.2 to 2% by weight of a basic catalyst, Gel-polymerizing the mixed mixture,
The coating apparatus
A coating chamber for containing the glass substrate and having an inner surface coated with an antistatic film;
A filter disposed on an upper surface of the coating chamber;
An exhaust line connected to a lower side of the coating chamber;
A belt conveyor mechanism disposed in the coating chamber for conveying the glass substrate;
At least two spray units for spraying an energy-saving coating onto the surface of the glass substrate; And
And a coating agent supply unit for supplying the energy saving coating agent in a predetermined amount to the spray units,
Each of the injection units
At least one spray nozzle for spraying the energy saving coating agent onto the glass substrate;
A horizontal movement mechanism for moving the injection nozzle along a horizontal direction; And
And a vertical movement mechanism for moving the horizontal movement mechanism along a vertical direction,
The injection nozzle
A nozzle body having a nozzle hole facing the surface of the glass substrate;
A first injection line formed along a vertical direction from an upper surface of the nozzle body to the nozzle hole, into which the energy saving coating agent is introduced; And
And a second ejection line formed along the horizontal direction from the side surface of the nozzle body to the nozzle hole and forming a vortex in the energy saving coating agent by spraying gas along the horizontal direction with the nozzle hole,
Wherein the flow rate of the energy saving coating agent introduced into the spray nozzle is from 5.0 ml / min to 10 ml / min, and the spray pressure of the spray nozzle for spraying the energy saving coating agent is from 0.2 Mpa to 0.3 Mpa.

11. The system of claim 10 wherein the spacing between the spray nozzles is 200mm and the distance between the spray nozzles and the glass substrate is 200mm.

The cleaning apparatus according to claim 10, wherein the cleaning device
At least one cleaning nozzle for spraying cleaning water onto the surface of the glass substrate;
A brush rotatably connected to the cleaning nozzle to brush the surface of the glass substrate; And
And at least one drying nozzle for spraying dry air to the glass substrate onto which the washing water is sprayed.

11. The apparatus of claim 10, wherein the air blowing device
And an air knife disposed at an upper portion of the glass substrate surface and having at least one air injection hole for injecting air obliquely to the glass substrate surface.

11. The apparatus according to claim 10,
An electrification member disposed on an upper surface of the glass substrate; And
And a power source for supplying electric current to the discharge member to charge the discharge member.

11. The system of claim 10, wherein at least one filter is disposed on an upper surface of the clean booth.