KR102356835B1 - Lamp coating system and method for coating lamp by using the coating system - Google Patents

Abstract

An embodiment of the present invention relates to a coating device for coating a photocatalyst on a light emitting unit of a lamp, and specifically, to a photocatalytic coating device including: a container for accommodating a photocatalytic coating solution; a tray support for slidably supporting a tray having one or more lamps attached to the lower surface of the tray; a driving device for driving the tray support in a vertical direction; and a water level sensor installed on the tray support.

Description

Lamp coating system and lamp coating method using same {Lamp coating system and method for coating lamp by using the coating system}

The present invention relates to an apparatus and method for coating a lamp, and more particularly, to an apparatus and method for coating a photocatalyst on a surface of a light emitting part of a lamp.

Recently, much attention has been paid to indoor environmental hygiene. In the interior of buildings, adhesives and preservatives used in building interior materials, fungi and bacteria such as sofas and carpets, house dust mites, volatile organic compounds used in detergents, bleaches, and air fresheners used in bathrooms, and carbon monoxide from cooking appliances such as gas stoves However, it is often contaminated with various nitrogen compounds, cigarette smoke, and fine dust that is getting worse.

In general, filters are often used to purify air, but recently, methods for sterilizing or removing odors by irradiating a photocatalyst with light such as ultraviolet light to activate the photocatalyst have been developed. In the photocatalytic reaction, for example, by irradiating ultraviolet rays to the surface of the photocatalyst to activate the photocatalyst, various pollutants and bacteria can be decomposed and denatured, and odors can be removed by decomposing organic or inorganic substances.

In order to purify air by the photocatalyst, a photocatalyst is coated on the surface of the light emitting part of a lamp that emits light of a wavelength used for excitation of the photocatalyst (for example, near ultraviolet (290-400 nm), etc.), and the photocatalyst coated lamp light to activate the photocatalyst.

Patent Document 1: Korean Patent Registration No. 10-2228831 (Announced on March 17, 2021) Patent Document 2: Korean Patent Publication No. 10-2019-0121939 (published on October 29, 2019)

According to an embodiment of the present invention, there is provided a coating apparatus capable of automatically performing photocatalytic coating on a light emitting part of a lamp and a coating method using the same.

According to an embodiment of the present invention, there is provided a coating device for coating a photocatalyst on a light emitting part of a lamp, comprising: a container for accommodating a photocatalyst coating solution; a tray support for slidably supporting a tray having one or more lamps attached to a lower surface thereof; a driving device for driving the tray support in an up-down direction; and a water level sensor installed on the tray pedestal; discloses a photocatalytic coating device comprising a.

According to an embodiment of the present invention, it is possible to automate the operation of coating the photocatalyst on the light emitting part of the lamp. In particular, by using the coating device of the present invention, the photocatalyst can be uniformly coated on the light emitting part of the lamp, and it has the technical effect of mass production of high-quality photocatalyst-coated lamps.

1 is a view for explaining a photocatalytic coating lamp according to an embodiment of the present invention;
2 and 3 are views for explaining a photocatalytic coating apparatus according to an embodiment;
4 is a view for explaining a conveyance belt according to an embodiment;
5 is a view for explaining a tray according to an embodiment;
6 to 8 are views for explaining a coating apparatus according to an embodiment;
9 is a flowchart of a photocatalytic coating method according to an embodiment.

The above objects, other objects, features and advantages of the present invention will be easily understood through the following preferred embodiments in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms. Rather, the embodiments introduced herein are provided so that the disclosed subject matter may be thorough and complete, and that the spirit of the present invention may be sufficiently conveyed to those skilled in the art.

In the present specification, when it is mentioned that a first component is connected to (or coupled, fastened, attached, etc.) to a second component, unless there is an express limitation, a third component is formed between the first component and the second component. It includes cases where it is indirectly connected (or coupled, fastened, attached, etc.) through a component of

In the drawings of the present specification, the thickness of the components is exaggerated for effective description of technical content. In addition, in the drawings of the present specification, the length, width, volume, size, or thickness of the components are exaggerated for effective description of technical content.

In the present specification, when terms such as “first” and “second” are used to describe components, these components should not be limited by these terms. These terms are only used to distinguish one component from another. Embodiments described and illustrated herein also include complementary embodiments thereof.

In this specification, the singular also includes the plural unless specifically stated otherwise in the phrase. The expressions 'comprising', 'consisting of', and 'consisting of' used in the specification do not exclude the presence or addition of one or more other elements in addition to the mentioned elements.

Hereinafter, the present invention will be described in detail with reference to the drawings. In describing the specific embodiments below, various specific contents have been prepared to more specifically describe the invention and help understanding. However, a reader having enough knowledge in this field to understand the present invention may recognize that it can be used without these various specific details. In some cases, it is mentioned in advance that parts which are commonly known and not largely related to the invention in describing the invention are not described in order to avoid confusion in describing the invention.

1 shows an exemplary configuration of a lamp 100 to be subjected to photocatalytic coating according to an embodiment of the present invention.

Referring to FIG. 1 , the lamp 100 according to an embodiment may be, for example, an LED lamp, but is not limited thereto. The lamp 100 may include a fastening unit 110 , a lamp body 120 , and a light emitting unit 130 .

The fastening part 110 is a member for attaching the lamp 110 by inserting it into a socket on a ceiling or wall, for example, and is not specifically shown in the drawing, but along the outer circumferential surface of the fastening part 110 for fastening to the socket (not shown). A thread or the like may be formed. The lamp body 120 may be an area accommodating an electric circuit for emitting an LED by electricity. The light emitting unit 130 is a region that emits light, and may emit, for example, visible light or ultraviolet light.

It goes without saying that the lamp 100 shown in FIG. 1 is exemplary, and the structure or light emitting band of the lamp may vary according to specific embodiments. For example, although the light emitting part 130 of the lamp 100 is shown in a spiral in FIG. 1 , in an alternative embodiment, the light emitting part 130 may be a rod shape instead of a spiral, and as another example, the shape of the fastening part 110 . may have a shape different from that shown in FIG. 1 . As another example, of course, the lamp 100 may emit light in an infrared band.

The photocatalyst coating system according to an embodiment of the present invention may coat the photocatalyst on the light emitting part 130 of the lamp 100 . For example, the photocatalyst coating system includes one or more coating devices accommodating a photocatalyst (photocatalyst solution), and impregnates the light emitting part 130 of the lamp 100 in the photocatalyst solution of the coating device. A photocatalyst may be coated on the surface.

In one embodiment, the photocatalyst may be a liquid or sol material in which a photocatalyst compound and a binder are mixed. The photocatalyst coated on the surface of the light emitting unit 130 is activated by the light emission of the lamp 100 to decompose various contaminants or bacteria in the air or remove odors to purify the air. The specific function or effect of the photocatalyst may vary depending on the types of various compounds that may constitute the photocatalyst, and the photocatalyst coating system of the present invention is not limited to any specific photocatalyst, and a coating system for coating an arbitrary photocatalyst on the lamp 100 will understand that

Hereinafter, a photocatalytic coating system according to an embodiment will be described with reference to FIGS. 2 to 9 .

2 and 3 show a photocatalytic coating system according to an embodiment, FIG. 2 schematically shows a side of the photocatalytic coating system, and FIG. 3 schematically shows a plan view of the photocatalytic coating device.

2 and 3, the photocatalytic coating system according to an embodiment includes a workbench 10, a first coating device 20, a second coating device 30, a drying device 40, and a first transfer belt 50 ), a second transfer belt 60, a first push device 70, and a second push device 80, and according to a specific embodiment of the invention, the components 10, 20, 30, At least some of 40, 50, 60, 70, 80) may be omitted or other components may be added.

The workbench 10 is, for example, an area for an operator to manually attach one or more lamps 100 to the tray 200 . The tray 200 may have, for example, a plate shape as shown in FIG. 5 . In FIG. 5 , the tray 200 has a plate shape of a predetermined thickness and may have an upper surface 200a and a lower surface 200b facing it. In the illustrated embodiment, the tray 200 may include a plurality of sockets 210 on the upper surface 200a. The lamp 100 may be detachably attached to each socket 210 . For example, the lamp 100 is attached to the socket 210 by inserting the fastening part ( 110 in FIG. 1 ) of the lamp 100 into the socket 210 .

Attaching the lamp 100 to each socket 210 may be performed manually, or may be performed automatically or semi-automatically using a predetermined device in an alternative embodiment. In addition, it will be understood that if the tray 200 to which the lamp 100 is attached is brought from another location to perform the coating operation, the work table 10 may not be required, and in this case, the work table 10 may be omitted.

The tray 200 to which one or more ramps 100 are attached can be automatically or manually mounted on the first conveying belt 50, and the first conveying belt 50 moves the tray 200 along a predetermined path (FIG. 2 or In Fig. 3, it is transferred along the left to right direction).

In an embodiment of the present invention, the first conveying belt 50 may convey the tray 200 in a state in which the lamp 100 is attached to the lower side of the tray 200 . That is, as shown in FIG. 5, the lamp 100 is attached to the socket 210 of the upper surface 200a of the tray 200, but the upper surface 200a is directed downward to the first transfer belt 50. transported by

In this regard, FIG. 4 shows a schematic configuration of the first transfer belt 50 in a perspective view. Referring to FIG. 4 , the first conveying belt 50 according to an embodiment is configured to convey between the first roller 57 and the second roller 58 . The first roller 57 may be directly or indirectly connected to a driving device 55 such as a driving motor to serve as a driving roller, and the second roller 58 may serve as a driven roller. Alternatively, the first roller 57 may be a driven roller and the second roller 58 may serve as a driving roller, or both the first and second rollers 57 and 58 may serve as a driving roller.

In a preferred embodiment, the surface of the first transfer belt 50 includes a plurality of support portions 51 protruding upwardly with respect to the surface at predetermined intervals. The distance between the two adjacent support parts 51 is designed to be slightly smaller than the width of the tray 200 so that the support part 51 can support the tray 200 . Accordingly, as shown, the upper surface 200a of the tray 200 faces downward, that is, the upper surface 200a faces the surface of the first transport belt 50 to support the tray 200 ( 51), the tray 200 can be transported. In addition, at this time, by making the protrusion height of the support part 51 larger than the height from the upper surface 200a of the tray 200 to the top of the lamp 100 attached to the socket 210, the lamp 100 is first transferred It can be prevented from touching the surface of the belt 50 .

Referring back to FIGS. 2 and 3 , the first coating device 20 and the second coating device 30 may be sequentially disposed on the transport path of the first transport belt 50 . In one embodiment, the first coating device 20 may be selectively installed, and water-repellent coating may be performed on the lower end (130a of FIG. 1 ) of the light emitting part 130 of the lamp 100 . The second coating device 30 is disposed on the downstream side of the first coating device 20 on the transport path and can perform photocatalytic coating on the light emitting part 130 of the lamp 100 .

The first coating device 20 and the second coating device 30 may have different configurations or may have the same or similar configuration. In the illustrated embodiment, it is assumed that the first and second coating devices 20 and 30 have the same configuration, and a detailed description of the second coating device 30 as an example will be described later with reference to FIGS. 7 to 9 . decide to do

In one embodiment, the tray 200 transferred through the first transfer belt 50 may be loaded on the first coating apparatus 20 by pushing the first push device 70 . The first push device 70 may include, for example, a first push bar 75 reciprocating by a driving means such as an actuator, an electric motor, or a hydraulic motor, and the first push bar 75 is a tray 200 . can be loaded on the first coating device 20 by pushing it toward the first coating device 20 . The first coating device 20 performs water-repellent coating on the lamp 100 attached to the tray 200 and then another push device (not shown) moves the tray 200 to the first transport belt 50 side. By pushing, the tray 200 may be placed on the support part 51 of the first conveyance belt 50 .

In an alternative embodiment, the first push device 70 may transfer the tray 200 to the first transport belt 50 without using the other push device. In this case, a grip means or grip means for gripping the tray 200 may be mounted on the tip of the first push bar 75, and after gripping the tray 200 with such grip means or gripping means, the tray ( 200) may be configured to be pushed toward the first coating device 20 or pulled toward the first conveying belt 50 side.

Similarly, the second push device 80 may be loaded on the second coating device 30 by pushing the tray 200 transported through the first transport belt 50 . The second push device 80 may include a second push bar 85 that reciprocates by the same or similar driving means as that of the first push device 70 , and the second push bar 85 is disposed on the tray 200 . ) can be loaded on the second coating device 30 by pushing it toward the second coating device 30 . The second coating device 30 performs photocatalytic coating on the lamp 100 attached to the tray 200, and then another push device (not shown) moves the tray 200 to the first transport belt 50 side. By pushing, the tray 200 may be placed on the support part 51 of the first conveyance belt 50 . In an alternative embodiment, a gripping means or gripping means for gripping the tray 200 may be mounted on the tip of the second pushbar 85 and gripping the tray 200 with such gripping means or gripping means and holding the tray 200 ) can be configured to push toward the second coating device 30 or to pull toward the first conveyance belt 50 side.

In one embodiment, the drying device 40 is disposed on the downstream side of the second coating device 30 on the transport path. In the case of the illustrated embodiment, the upstream end of the second transfer belt 60 is disposed at the downstream end of the first transfer belt 50 . In this case, the operator manually or semi-automatically turns the tray 200 transferred through the first transfer belt 50 so that the ramp 100 faces upward and the lower surface 200b of the tray 200 faces downward. It can be placed on the second transfer belt (60) to do so. Of course, this operation may be automatically performed by installing a separate device for turning the tray 200 in an alternative embodiment.

The second conveying belt 60 is disposed to pass through the drying device 40, and the tray 200 placed on the second conveying belt 60 is conveyed along the conveying path (ie, the right direction in FIG. 2 or 3). It was made to dry. The drying device 40 may dry the photocatalyst coated on the light emitting part 130 of the lamp 100 by a known method such as hot air or high temperature infrared radiation.

The tray 200 transferred along the first transport belt 50 is loaded into the first or second coating device 20, 30 by the first or second push device 70, 80, or the first or second 2 While the first transfer belt 50 has to stop while the coating devices 20 and 30 are loaded onto the first transfer belt 50, the tray 200 moves the drying device 40 at a constant speed to dry it. It may be desirable, and therefore, in the illustrated embodiment, the belt for transporting the tray 200 is separated into a first transport belt 50 and a second transport belt 60 . However, in an alternative embodiment, a single transfer belt (eg, the first transfer belt 50 ) may be used to transfer the tray 200 to the drying apparatus 40 .

6 to 8 are views for explaining a coating apparatus according to an embodiment, in which Fig. 6 is a perspective view, Fig. 7 is a front view, and Fig. 8 is a side view schematically shown. The first coating device 20 and the second coating device 30 may have the same or similar configuration, and FIGS. 6 to 8 are, as an example, the second coating device 30 (hereinafter simply referred to as a 'coating device'). is shown.

6 to 8 , the coating device 30 according to an embodiment includes a body frame 31 , a container 32 , a sliding frame 33 , a tray support 34 , a driving device 35 , and It may include a water level sensor 38 . The body frame 31 is a member that defines the basic shape of the coating device 30 and serves to attach various components or support the components. The control panel 37 may be installed in the lower region of the body frame 31 , and various electric circuits or electric devices may be disposed in the inner region of the control panel 37 .

The container 32 is a container for accommodating a coating liquid (eg, a photocatalytic coating liquid or a water-repellent coating liquid, etc.), and in one embodiment, the tray 200 descends from the top to enter the container 32, and the upward direction is open. It may be a container in the shape of a hexahedron.

A sliding frame 33 that moves in the vertical direction (Z direction in FIG. 7 ) may be installed on the body frame 31 . The sliding frame 33 may be moved by a driving device 35 such as an electric motor. In the case of the illustrated embodiment, the sliding frame 33 may be attached to the belt 36 by the belt coupling portion 36a. The belt 36 is sandwiched between a plurality of rollers and disposed in the vertical direction, and the sliding frame 33 can be moved in the vertical direction by rotating the belt 36 by the driving device 35 .

A tray support 34 is installed on the sliding frame 33 . As shown in Figs. 6 and 7, the tray support 34 can slidably support both edges of the tray 200 in the width direction (Y direction in Fig. 7). Here, 'slidably supported' means that the tray 200 can move in the front-back direction (X direction in FIG. 6) of the coating device 30 in a state supported by the tray support 34.

Therefore, for example, when the tray 200 supported and transported by the support part 51 of the first transport belt 50 is aligned in the X-direction and the Z-direction with respect to the tray support 34 of the coating device 30, the push bar By pushing the tray 200 to the coating device 30 side, the tray 200 can be moved so that the tray support 34 supports it.

6 to 8 , the sliding frame 33 descends in a state in which the tray support 34 supports the tray 200 , so that the lamp 100 can be immersed in the coating solution in the container 32 . For example, in the case of water-repellent coating, the sliding frame 33 can be lowered to such an extent that only the lower end (130a in FIG. 1) of the lamp 100 comes into contact with the water-repellent coating solution, and in the case of photocatalytic coating, the light emitting part of the lamp 100 The sliding frame 33 may be lowered to such an extent that the entire 130 is immersed in the photocatalytic coating solution.

In one embodiment, it may further include a water level sensor 38 for detecting the descending height of the sliding frame (33). In the case of the illustrated embodiment, at least one water level sensor 38 may be installed on the sliding frame 33 or the frame pedestal 34 . The water level sensor 38 detects when the lowermost part comes into contact with the coating solution and transmits a detection signal to the control unit (not shown), and the control unit controls the operation of the driving device 35 based on the received detection signal to control the sliding frame ( 33) can be stopped.

Although not shown in the drawings, in one embodiment, a drying module for irradiating infrared rays or blowing hot wind to the inside of the container 32 may be additionally installed on the upper edge of the container 32 or inside the container 32 . In this case, for example, when at least a part of the light emitting part 130 of the lamp 100 is immersed in the coating solution and rises out of the coating solution, the drying module operates and blows hot air toward the coating solution coated on the surface of the light emitting part 130 . Alternatively, the coating solution can be first dried by irradiating infrared rays.

Now, a coating method using the above-described photocatalytic coating system will be described with reference to FIG. 9 . Referring to FIG. 9 , first, one or more lamps 100 are attached to the tray 200 in step S10 . For example, an operator may perform a task of attaching one or more lamps 100 to the tray 200 on a workbench (10 in FIG. 2 ).

After that, the operator manually or automatically using a separate device puts the tray 200 on the first transfer belt (50). That is, the tray 200 is turned over so that the ramp 100 faces downward, the tray 200 is hung on the support part 51 of the first conveyance belt 50 , and placed on the first conveyance belt 50 .

When the tray 200 transferred along the first transfer belt 50 arrives at the first coating device 20, a water repellent coating is performed on the lamp 100 by the first coating device 20 (S20). For example, the first push bar 75 pushes the tray 200 to the tray pedestal (refer to 34 in FIG. 6) of the first coating device 20 to load it on the pedestal, and then the sliding frame (33 in FIG. 6) ) is descended and immersed in the water-repellent coating solution only to the lower end (130a) of the light emitting part of the lamp. At this time, for example, only the lowermost surface of the lamp light emitting unit 130 may be immersed in the water repellent coating solution, or the light emitting unit 130 region from the lowest surface of the light emitting unit 130 to a predetermined height may be immersed in the water repellent coating solution. After that, the sliding frame is raised, and the tray 200 is pushed using the first push bar 75 or a separate push device (not shown) to put it back on the support part 51 of the first transport belt 50 .

Next, when the tray 200 reaches the second coating device 30 , the second coating device 30 performs photocatalytic coating on the lamp 100 ( S30 ). For example, the first push bar 75 pushes the tray 200 and loads it on the tray support 34 of the second coating device 30 , and then the sliding frame 33 descends to the lamp light emitting part 130 . Soak in the photocatalyst coating solution until After immersing the light emitting part 130 of the lamp 100 in the photocatalyst coating solution for a predetermined time, the sliding frame 33 is raised and the tray 200 using the second push bar 85 or a separate push device (not shown). ) is pushed and placed on the support part 51 of the first transfer belt 50 .

At this time, in order to uniformly coat the photocatalytic coating solution over the entire surface of the light emitting unit 130 in step S30, the descending speed and rising speed of the sliding frame 33 and the time for immersing the light emitting unit 130 in the coating solution are appropriately adjusted. can be set. In one embodiment, the sliding frame 33 may be lowered as quickly as possible to shorten the coating process time. For example, the sliding frame 33 can be descended as quickly as possible within the limit that the coating liquid does not splash, for example, the time the coating liquid surface reaches from the lowest end to the uppermost end of the light emitting unit 130 may be between 0.5 seconds and 2 seconds. .

The time for immersing the light emitting part 130 in the photocatalyst coating solution may be, for example, between 3 seconds and 10 seconds, preferably between 4 seconds and 5 seconds, and the immersion time varies depending on the coating solution characteristics such as components and viscosity of the photocatalytic coating solution. can

The speed of raising the sliding frame 33 is an important parameter for uniformly coating the photocatalytic coating solution on the surface of the light emitting unit 130 . If the lamp 100 is raised too quickly, the coating of the light emitting part 130 may not be uniform, and if the lamp 100 is raised too slowly, the working process will be slowed down. In one embodiment, the time it takes to rise from the state immersed to the uppermost end of the light emitting unit 130 until the lowermost end of the light emitting unit 130 leaves the surface of the coating solution may be between 1 second and 5 seconds, but the components of the photocatalytic coating solution, Of course, it may vary depending on the characteristics of the coating solution, such as viscosity.

In addition, in an embodiment of the present invention, when a water-repellent coating is applied to the lower end 130a of the light emitting part 130, a more uniform coating of the photocatalytic coating can be achieved. In general, when the light emitting part 130 is immersed in the photocatalyst coating solution and then raised, the photocatalytic coating solution flows down along the surface of the light emitting part 130, so the coating solution is collected at the lower end 130a of the light emitting part 130 and the lower end ( 130a) becomes thicker or agglomerates of the coating solution are formed in many cases. However, according to an embodiment of the present invention, the lower portion 130a is first coated with a water-repellent coating solution, and then a photocatalytic coating can be applied to the light emitting part 130. Since it does not agglomerate due to the water repellency of the surface, the coating thickness of the lower end portion 130a may become thicker or the aggregation of the coating solution may be prevented.

In addition, in the case of an alternative embodiment having a drying module at the upper end of the container 32 or inside the container 32, the light emitting part 130 of the lamp 100 is gradually taken out from the photocatalytic coating solution while the sliding frame 33 is raised. During the drying, the surface of the light emitting part 130 exposed to the outside of the coating solution may be primarily dried using a drying module. That is, by blowing a hot air or irradiating infrared rays toward the surface of the light emitting unit 130 while the light emitting unit 130 is taken out and ascending to the outside of the coating liquid, the coating liquid may not flow down the surface of the light emitting unit 130 . At this time, the primary drying by the drying module does not completely dry the coating liquid on the surface of the light emitting unit 130 , and it is sufficient if the coating liquid is dried enough not to flow down along the surface of the light emitting unit 130 .

Next, when the photocatalytic coating in the second coating device 30 is completed, the tray 200 is transferred to the drying device 40 by the first transport belt 50 and/or the second transport belt 60 and the drying device In (40), the photocatalyst coating solution of the light emitting unit 130 is dried (S40). In one embodiment, the tray 200 may be directly turned over (that is, with the upper surface 200a facing upward) and placed in the drying apparatus 40 , for example, by the first conveying belt 50 , the drying apparatus 40 ), the tray 200 may be transferred to the drying device 40 in an inverted state (that is, with the lower surface 200b facing upward).

In the drying device 40, for example, the coating solution may be cured by heating at a temperature between 100 degrees Celsius and 150 degrees Celsius for 5 minutes to 30 minutes. However, it goes without saying that the drying temperature and time may vary depending on the characteristics of the photocatalyst coating solution.

As such, when it passes through the drying device 40, the photocatalytic coating operation is completed, and then the lamp 100 can be automatically detached from the tray 200 by a manual operation of an operator or by a separate device (S50).

As described above, those of ordinary skill in the art to which the present invention pertains will understand that various modifications and variations are possible from the description of this specification. Therefore, the scope of the present invention should not be limited to the described embodiments and should be defined by the claims described below as well as the claims and equivalents.

10: work table 20, 30: coating device
40: drying device 50, 60: transfer belt
70, 80: push device 100: ramp
130: light emitting unit 200: tray
210, 220: socket

Claims (5)

A photocatalyst coating system for coating a photocatalyst on a light emitting part of a lamp, comprising:
a conveying belt 50 for conveying a tray having one or more ramps attached to the lower surface;
a photocatalyst coating device 30 disposed on the transport path of the transport belt and coating a photocatalyst on the light emitting part of the lamp; and
and a drying device 40 installed downstream of the conveying belt.
The photocatalytic coating device 30,
a container 32 containing a photocatalytic coating solution;
a tray pedestal 34 slidably supporting the tray 200 attached to the lower surface of one or more lamps; and
Including; a driving device 35 for driving the tray support in the vertical direction;
The photocatalyst coating system, the photocatalyst coating system, characterized in that it further comprises a push device for sliding the tray transported by the transport belt to the tray support of the photocatalytic coating device. delete delete The method of claim 1,
The push device further comprises a grip means for gripping the tray,
The photocatalyst coating system, characterized in that the grip means grips the tray loaded on the transfer belt and loads it on the tray support of the photocatalytic coating device, or grips the tray loaded on the tray support and loads it on the transfer belt. The method of claim 1,
Photocatalytic coating system, characterized in that it further comprises a water level sensor (38) installed on the tray support.

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