Panel cleaning device and panel coating equipment

Abstract

The utility model relates to a panel cleaning device and panel coating equipment, the panel cleaning device is used for cleaning the panel surface of a panel in transportation, the panel cleaning device comprises two air pipes, the air pipes are provided with a plurality of air holes which are arranged at intervals along a first direction, and the air holes are used for communicating the interiors of the air pipes with the external spaces of the air pipes. One end of each air pipe is used for being communicated with an air conveying device, the air pipes blow air towards the plate face of the panel through the air holes, the two air pipes are parallel and are arranged in a spaced mode in the second direction, the air holes distributed in the two air pipes are arranged in a staggered mode in the first direction, the first direction is the length extension direction of the air pipes, and the second direction is the conveying direction of the panel. The second direction and the first direction form an included angle. The cleaning device for the panel can clean the panel so as to reduce the possibility that foreign matters are attached to the panel surface of the panel.

Description

Technical Field

[0001] The utility model relates to the technical field of display panel production and manufacturing, in particular to a panel cleaning device and a panel coating device. Background Art

[0002] like Figure 1 As shown, during the display panel manufacturing process, it is necessary to spray a material (for example, including but not limited to a photosensitive material and a protective material) onto the surface of a panel 200 that has not yet been manufactured into a finished display panel through a coating nozzle 2 to form a coating 300. When a foreign object 400 is present on the panel surface 200a of the panel 200, since the sprayed material has a certain fluidity when it is just sprayed on the panel surface 200a of the panel 200, the material at the location of the foreign object 400 will flow toward the periphery of the foreign object 400, thereby causing the local thickness of the coating 300 at the location of the foreign object 400 to be thinner, resulting in a poor coating 300. Utility Model Content

[0003] One purpose of the utility model is to provide a panel cleaning device, which can clean the panel to reduce the possibility of foreign matter adhering to the panel surface.

[0004] Another object of the present invention is to provide a panel coating device, which can improve the manufacturing yield rate in the process of coating the panel surface with material to form a coating by providing the aforementioned panel cleaning device.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] In a first aspect, a panel cleaning device is provided for cleaning a panel surface during transport, comprising:

[0007] Two air pipes, each of the air pipes being provided with a plurality of air holes spaced apart along a first direction, the air holes being used to connect the interior of the air pipe with the exterior of the air pipe, one end of the air pipe being connected to a gas delivery device, and the air pipe blowing air toward the panel surface through the air holes, the two air pipes being parallel and spaced apart along a second direction;

[0008] Along the first direction, the stomata of the two trachea are arranged in a staggered manner;

[0009] The first direction is the longitudinal extension direction of the air pipe, the second direction is the conveying direction of the panel, and the second direction forms an angle with the first direction.

[0010] As a preferred solution for the panel cleaning device, the air hole has an air outlet located on the outer surface of the air pipe. Along the first direction, the air outlet has a maximum outline dimension a, and along the direction perpendicular to the first direction, the air outlet has a maximum outline dimension b, 4≤a / b≤25.

[0011] As a preferred solution of the panel cleaning device, on the cross-section of the air duct cut by the plane where the first central axis of the air duct and the second central axis of the air hole are located, the cross-section of the air hole has two opposite cross-sectional edges along the first direction, and the closer to the downstream along the blowing direction of the air hole, the greater the distance between the two cross-sectional edges.

[0012] As a preferred solution of the panel cleaning device, the two cross-sectional edges are both straight edges, and the two cross-sectional edges form an angle α, 60°≤α≤120°.

[0013] As a preferred solution of the panel cleaning device, along the second direction, the distance between the two air pipes is d, and 3 cm ≤ d ≤ 10 cm.

[0014] As a preferred solution for the panel cleaning device, at least one of the air tubes includes a tube body and an air nozzle, the tube body is provided with a plurality of connecting holes arranged at intervals along the first direction, the air nozzle is provided with the air holes, the air nozzle is sealed and connected to the connecting holes, and the air holes are connected to the interior of the tube body.

[0015] As a preferred solution of the panel cleaning device, of the two air pipes, one is a first air pipe and the other is a second air pipe, and the second air pipe is located on the downstream side of the first air pipe along the second direction;

[0016] The angle between the first outlet direction of the first air pipe through its own air holes and the second direction is θ1, and the angle between the second outlet direction of the second air pipe through its own air holes and the second direction is θ2, 90°<θ1≤θ2.

[0017] As a preferred solution of the panel cleaning device, 120°≤θ1≤135°, and / or, 145°≤θ2≤150°.

[0018] As a preferred solution of the panel cleaning device, the first air pipe is further located on a side of the second air pipe close to the panel along a third direction, and the third direction is perpendicular to the panel surface.

[0019] In a second aspect, a panel coating device, a paint nozzle and a panel cleaning device as described in the first aspect are provided, wherein the paint nozzle is located on the downstream side of the panel cleaning device along the second direction.

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] The panel cleaning device of the utility model is provided with two parallel air pipes, and the air holes of the two air pipes blow air toward the panel surface respectively, so that foreign matter on the panel surface can be blown away.

[0022] Furthermore, when the air pipe blows air toward the panel surface through the air holes, the blowing force applied to adjacent or overlapping areas of the blowing regions of two adjacent air holes will be weaker due to the mutual influence of the airflows blown out by the two air holes, resulting in a poor cleaning effect of the air pipe at that area. Therefore, by staggering the air holes of the two air pipes along the first direction, in other words, in the projection of the two air pipes along the second direction on a plane perpendicular to the second direction, an air hole of one air pipe is arranged between any two adjacent air holes of the other air pipe, the two air pipes can be staggered in their respective cleaning locations of the panel. That is, the air holes of the other air pipe can directly face the weak cleaning locations of the panel from one air pipe, thereby blowing with greater force, thereby achieving a better cleaning effect of the panel cleaning device at all locations on the panel surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of the paint nozzle, panel and coating (when there is foreign matter on the panel surface) provided by the existing technology.

[0024] Figure 2 This is a schematic structural diagram of a panel coating device and a panel according to an embodiment of the present invention.

[0025] Figure 3 This is a bottom view of a panel cleaning device according to an embodiment of the present invention.

[0026] Figure 4 Schematic cross-sectional view of a trachea according to an embodiment of the present invention.

[0027] Figure 5 This is a schematic cross-sectional view of a trachea according to another embodiment of the present invention.

[0028] Figure 6 The figure is a cross-sectional schematic diagram of a panel cleaning device and a panel according to an embodiment of the present invention.

[0029] Figures 1 to 6 middle:

[0030] 100. Panel coating equipment;

[0031] 1. Panel cleaning device; 11. Air pipe; 110. Air hole; 1101. Second central axis; 110a. Air outlet; 110b. Cross-sectional edge; 111. Tube body; 111a. Connecting hole; 112. Air nozzle; 113. First central axis; 11a. First air pipe; 1a. First air outlet direction; 11b. Second air pipe; 1b. Second air outlet direction;

[0032] 2. Paint spray nozzle;

[0033] 200, panel; 200a, board surface;

[0034] 300, coating;

[0035] 400. Foreign matter. DETAILED DESCRIPTION

[0036] The advantages and features of the present invention and methods for achieving them will become apparent with reference to the embodiments described in detail below in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but can be implemented in a variety of different forms. These embodiments are provided merely to complete the disclosure of the present invention and enable those skilled in the art to fully understand the scope of the present invention. The present invention is limited only by the scope of the claims. The same reference numerals represent the same components throughout the specification.

[0037] Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

[0038] like Figure 2 and Figure 3 As shown, a panel cleaning device 1 is provided, including two air pipes 11, the air pipes 11 are provided with a plurality of air holes 110 arranged at intervals along a first direction S1, the air holes 110 are used to connect the interior of the air pipe 11 and the external space of the air pipe 11, one end of the air pipe 11 is used to be connected to a gas conveying device (not shown in the figure), and the air pipe 11 blows air toward the plate surface 200a of the panel 200 through the air holes 110, the two air pipes 11 are parallel and arranged at intervals along the second direction S2, and the air holes 110 distributed on the two air pipes 11 along the first direction S1 are staggered, wherein the first direction S1 is the length extension direction of the air pipe 11, the second direction S2 is the conveying direction of the panel 200, and the second direction S2 is at an angle to the first direction S1.

[0039] By providing two parallel air pipes 11 , the air holes 110 of the two air pipes 11 blow air toward the plate surface 200 a of the panel 200 respectively, so that foreign matter on the plate surface 200 a of the panel 200 can be blown away.

[0040] Furthermore, when the air pipe 11 blows air toward the plate surface 200a of the panel 200 through the air holes 110, for the adjacent or overlapping areas of the blowing regions of two adjacent air holes 110, the airflows blown out by the two air holes 110 will affect each other, so the blowing force at this area is relatively small, resulting in poor cleaning effect of the air pipe 11 at this area. Therefore, by arranging the air holes 110 distributed in the two air tubes 11 in a staggered manner along the first direction S1, in other words, on the projection of the two air tubes 11 along the second direction S2 on a plane perpendicular to the second direction S2, an air hole 110 of another air tube 11 is arranged between any two adjacent air holes 110 of one air tube 11, the two air tubes 11 can be staggered in the weak cleaning areas of the panel 200, that is, the weak cleaning areas of the panel 200 of one air tube 11 can be directly faced by the air holes 110 of the other air tube 11 for greater force blowing, thereby making the panel cleaning device 1 have a better cleaning effect on various positions of the panel surface 200a of the panel 200.

[0041] Optionally, the end of the trachea 11 that is not connected to the gas delivery device can be blocked to facilitate maintaining a higher air pressure environment inside the trachea 11, thereby facilitate maintaining a smooth process of gas outflow from the vent 110 of the trachea 11.

[0042] The air hole 110 has an air outlet 110a located on the periphery of the air pipe 11. Along the first direction S1, the air outlet 110a has a maximum outline dimension a, and along the direction perpendicular to the first direction S1, the air outlet 110a has a maximum outline dimension b. Since the panel 200 is transported relative to the air pipe 11 along the second direction S2, when the panel cleaning device 1 is used to clean the panel surface 200a of the panel 200, the maximum outline dimension a of the air outlet 110a affects the blowing area of ​​the air pipe 11 on the panel 200 along the first direction S1, and the maximum outline dimension b of the air outlet 110a has almost no effect on the blowing area of ​​the air pipe 11 on the panel 200 along the second direction S2. Therefore, in order to make the blowing area of ​​the air pipe 11 on the panel 200 along the first direction S1 larger, the maximum outline dimension a can be made greater than the maximum outline dimension b. Exemplarily, the ratio of the maximum profile dimension a to the maximum profile dimension b may satisfy: 4≤a / b≤25. For example, the ratio a / b of the maximum profile dimension a to the maximum profile dimension b may be 4, 5, 6, 7, 8, 10, 12, 15, 20 or 25, etc., wherein the units of the maximum profile dimension a and the maximum profile dimension b are the same.

[0043] In an actual setting, in order to make the speed of the air flow ejected from the air outlet 110a higher so as to exert a greater cleaning force on the plate surface 200a of the panel 200, the opening area of ​​the air outlet 110a cannot be too large. Therefore, the maximum profile dimension a and the maximum profile dimension b cannot be too large. Based on this, for example, the maximum profile dimension a and the maximum profile dimension b can satisfy: 30mm≤a≤50mm, and 2mm≤b≤7mm. For example, the maximum profile dimension a can be 30mm, 32mm, 34mm, 35mm, 36mm, 37mm, 38mm, 40mm, 42mm, 44mm, 45mm, 46mm, 48mm or 50mm, etc., and the maximum profile dimension b can be 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 6.5mm or 7mm, etc.

[0044] Please combine Figure 4 As shown, optionally, on a cross section of the air duct 11 cut by a plane where the first central axis 113 of the air duct 11 and the second central axis 1101 of the air hole 110 are located, the cross section of the air hole 110 has two opposite cross-sectional edges 110b along the first direction S1. The closer to the downstream along the blowing direction of the air hole 110, the larger the distance between the two cross-sectional edges 110b, thereby guiding part of the air in the air hole 110 to diffuse toward both sides along the first direction S1, so as to further increase the blowing area of ​​the airflow ejected from the air hole 110 on the panel 200 along the first direction S1, wherein, Figure 4 The cross-sectional structure of the trachea 11 cut by a plane where the first central axis 113 of the trachea 11 and the second central axis 1101 of the air hole 110 are located is shown.

[0045] Optionally, both cross-sectional edges 110 b are straight edges, so as to keep the airflow in the air hole 110 smooth and avoid turbulence that affects the cleaning effect of the ejected airflow on the panel 200 .

[0046] Furthermore, the two cross-sectional edges 110b form an angle α. In order to make the airflow ejected from the air hole 110 blow a larger area on the panel 200 along the first direction S1, while avoiding the inclination angle of the airflow being too large, which causes the airflow to be sprayed to the panel surface 200a of the panel 200 to be too long, and the airflow loses too much energy before being sprayed to the panel 200, resulting in poor cleaning effect on the panel surface 200a of the panel 200. The angle α needs to be larger but not too large. Based on this, the angle α can meet the following requirements: 60°≤α≤120°. For example, the angle α can be 60°, 70°, 80°, 90°, 100°, 110° or 120°, etc.

[0047] Along the second direction S2, the distance between the two air tubes 11 is d. If the distance between the two air tubes 11 is too close, the airflows ejected from the two air tubes 11 may interfere with each other, thereby affecting the overall cleaning effect of the panel cleaning device 1. If the distance between the two air tubes 11 is too far, the setting and use space occupied by the panel cleaning device 1 will be too large. Therefore, the distance d can be slightly smaller but not too small. Based on this, optionally, the distance d between the two air tubes 11 can satisfy: 3cm≤d≤10cm. For example, the distance d can be 3cm, 4cm, 5cm, 6cm, 7cm, 8cm, 9cm or 10cm, etc.

[0048] like Figure 5 As shown, optionally, at least one air pipe 11 includes a tube body 111 and an air nozzle 112, the tube body 111 is provided with a plurality of connecting holes 111a arranged at intervals along the first direction S1, the air nozzle 112 is provided with an air hole 110, the air nozzle 112 is sealed and connected to the connecting hole 111a, and the air hole 110 is connected to the interior of the tube body 111, so that on the one hand, the air nozzle 112 can provide more setting space for the air hole 110 to reduce the difficulty of opening the air hole 110, and on the other hand, by using the split tube body 111 and the air nozzle 112 to assemble to form the air pipe 11, it is convenient to inspect and replace the individual air nozzle 112 when a problem occurs with an individual air hole 110.

[0049] Exemplarily, the hole wall of the connecting hole 111a may be provided with threads, and the outer periphery of one end of the air nozzle 112 may also be provided with threads. The air nozzle 112 may be threadedly connected to the connecting hole 111a and sealed with the connecting hole 111a, or, an elastic sealing ring (not shown in the figure) may be sandwiched between the air nozzle 112 and the hole wall of the connecting hole 111a so that the air nozzle 112 is sealed and inserted into the connecting hole 111a, or, the air nozzle 112 may be threadedly connected to the connecting hole 111a, and an elastic sealing ring (not shown in the figure) may be sandwiched between the air nozzle 112 and the connecting hole 111a so that the connecting hole 111a is sealed by the elastic sealing ring.

[0050] Please also refer to Figure 2 and Figure 6 Since the panel cleaning device 1 is used to clean the panel surface 200a before the paint nozzle 2 sprays paint on the panel surface 200a of the panel 200, the paint nozzle 2 should be arranged on the downstream side of the panel cleaning device 1 along the second direction S2.

[0051] Optionally, one of the two air pipes 11 is the first air pipe 11a, and the other is the second air pipe 11b. The second air pipe 11b is located on the downstream side of the first air pipe 11a along the second direction S2, that is, along the second direction S2, the second air pipe 11b is located between the first air pipe 11a and the paint nozzle 2, and the angle between the first air outlet direction 1a of the first air pipe 11a through its own air holes 110 and the second direction S2 is θ1, and the angle between the second air outlet direction 1b of the second air pipe 11b through its own air holes 110 and the second direction S2 is θ2, 90°<θ1≤θ2, so that the first air outlet direction 1a and the second air outlet direction 1b are not directed towards the position where the paint nozzle 2 is located, so as to reduce the possibility of the first air pipe 11a and the second air pipe 11b blowing foreign matter toward the paint nozzle 2.

[0052] Among them, the first gas outlet direction 1a and the second gas outlet direction 1b are both the approximate flow directions of the gas blown out from the air hole 110. Specifically, the first gas outlet direction 1a is defined as being parallel to the extension direction of the second central axis 1101 of the air hole 110 of the first air pipe 11a itself, and the second gas outlet direction 1b is defined as being parallel to the extension direction of the second central axis 1101 of the air hole 110 of the second air pipe 11b itself.

[0053] Furthermore, when θ1<θ2, on the one hand, the first air outlet direction 1a and the second air outlet direction 1b can be made different, so that the first air pipe 11a and the second air pipe 11b can blow air to the plate surface 200a of the panel 200 at different angles, so as to achieve more diverse blowing effects and improve the removal rate of foreign matter. On the other hand, the second air outlet direction 1b of the second air pipe 11b can be made further away from the paint nozzle 2, so as to further reduce the possibility of the second air pipe 11b blowing foreign matter toward the paint nozzle 2. At the same time, the air flow blown out by the second air pipe 11b can be used to block the air flow blown out by the first air pipe 11a from flowing toward the paint nozzle 2, that is, the possibility of the first air pipe 11a blowing foreign matter toward the paint nozzle 2 can be further reduced.

[0054] In order to improve the cleaning effect of the first air pipe 11a while reducing the possibility of the first air pipe 11a blowing foreign matter toward the paint nozzle 2, optionally, the angle θ1 between the first air outlet direction 1a and the first direction S1 can satisfy: 120°≤θ1≤135°, for example, θ1 can be: 120°, 122°, 124°, 125°, 126°, 128°, 130°, 132°, 134° or 135°, etc.

[0055] In order to achieve better cleaning effect of the second air pipe 11b, while reducing the possibility of the second air pipe 11b blowing foreign matter toward the paint nozzle 2, and to achieve better effect of the airflow blown out of the second air pipe 11b blocking the airflow blown out of the first air pipe 11a from flowing toward the paint nozzle 2, optionally, the angle θ2 between the second air outlet direction 1b and the second direction S2 can satisfy: 145°≤θ2≤150°, for example, θ2 can be: 145°, 146°, 147°, 148°, 149° or 150°, etc.

[0056] In addition, the wind force blown by the first air pipe 11a toward the panel surface 200a of the panel 200 can be made smaller than the wind force blown by the second air pipe 11b toward the panel surface 200a, so that the airflow blown by the second air pipe 11b can better block the airflow blown by the first air pipe 11a from flowing toward the paint nozzle 2.

[0057] In an optional embodiment, the gas flow rates delivered to the first air pipe 11a and the second air pipe 11b can be controlled separately by a gas delivery device, so that the gas flow rate delivered to the first air pipe 11a is smaller than the gas flow rate delivered to the second air pipe 11b, so that the wind force blown from the first air pipe 11a toward the panel surface 200a of the panel 200 is smaller than the wind force blown from the second air pipe 11b toward the panel surface 200a of the panel 200.

[0058] At this time, the distance between the first air pipe 11 a and the panel 200 may be equal to the distance between the second air pipe 11 b and the panel 200 .

[0059] In another optional embodiment, a gas delivery device of the entire factory can be used. By connecting the gas delivery pipe 11 between the gas delivery device and the first gas pipe 11a and the second gas pipe 11b, the gas delivery device can deliver gas of the same pressure to the first gas pipe 11a and the second gas pipe 11b. At this time, the first gas pipe 11a can also be located on the side of the second gas pipe 11b close to the panel 200 along the third direction S3. The third direction S3 is perpendicular to the panel surface 200a. In other words, along the third direction S3, the distance between the first gas pipe 11a and the panel 200 is greater than the distance between the second gas pipe 11b and the panel 200. , so that the distance traveled by the gas blown out of the first air pipe 11a in the process of falling to the plate surface 200a of the panel 200 is greater than the distance traveled by the gas blown out of the second air pipe 11b in the process of falling to the plate surface 200a of the panel 200. In other words, the energy loss generated by the gas blown out of the first air pipe 11a before falling to the plate surface 200a of the panel 200 is greater than the energy generated by the gas blown out of the second air pipe 11b before falling to the plate surface 200a of the panel 200, thereby making the wind force blown toward the plate surface 200a of the panel 200 by the first air pipe 11a smaller than the wind force blown toward the plate surface 200a of the panel 200 by the second air pipe 11b.

[0060] In this embodiment, the existing gas delivery device of the factory can be used to supply gas to the panel cleaning device 1 without adding an additional gas delivery device, which can reduce the use cost of the panel cleaning device 1.

[0061] like Figure 2 As shown, a panel coating apparatus 100 is also provided, comprising: a coating spray head 2 and a panel cleaning device 1 as described in the aforementioned technical solution. The coating spray head 2 is located downstream of the panel cleaning device 1 along the second direction S2, that is, the coating spray head 2 is located downstream of the panel cleaning device 1 along the conveying direction of the panel 200. By providing the aforementioned panel cleaning device 1, the manufacturing yield in the process of applying a material to form a coating on the plate surface 200a of the panel 200 can be improved. The panel cleaning device 1 and the coating spray head 2 can both be suspended and fixed above a transport device (not shown) used to transport the panel 200 along the second direction S2 using any existing fixing structure.

[0062] Although the embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the above embodiments, but can be manufactured in various forms, and those skilled in the art will understand that the present invention can be implemented in other specific forms without changing the technical spirit or basic features of the present invention. Therefore, it should be understood that the above embodiments are illustrative and not restrictive in all aspects.

Claims

1. A panel cleaning device for cleaning the panel surface during transportation, characterized in that: include: Two air pipes, each of the air pipes being provided with a plurality of air holes spaced apart along a first direction, the air holes being used to connect the interior of the air pipe with the exterior of the air pipe, one end of the air pipe being connected to a gas delivery device, and the air pipe blowing air toward the panel surface through the air holes, the two air pipes being parallel and spaced apart along a second direction; Along the first direction, the stomata of the two trachea are arranged in a staggered manner; The first direction is the longitudinal extension direction of the air pipe, the second direction is the conveying direction of the panel, and the second direction forms an angle with the first direction.

2. The panel cleaning device according to claim 1, characterized in that: The air hole has an air outlet located on the outer surface of the air pipe. Along the first direction, the air outlet has a maximum outline size a. Along the direction perpendicular to the first direction, the air outlet has a maximum outline size b. 4≤a / b≤25.

3. The panel cleaning device according to claim 1, characterized in that: In a cross section of the air tube cut by a plane where the first central axis of the air tube and the second central axis of the air hole are located, the cross section of the air hole has two opposite cross-sectional edges along the first direction, and the closer to the downstream along the blowing direction of the air hole, the greater the distance between the two cross-sectional edges.

4. The panel cleaning device according to claim 3, characterized in that: The two cross-sectional edges are both straight edges, and the two cross-sectional edges form an angle α, 60°≤α≤120°.

5. The panel cleaning device according to claim 1, characterized in that: Along the second direction, the distance between the two air tubes is d, and 3 cm ≤ d ≤ 10 cm.

6. The panel cleaning device according to any one of claims 1 to 5, characterized in that: At least one of the air pipes includes a tube body and an air nozzle, the tube body is provided with a plurality of connecting holes arranged at intervals along the first direction, the air nozzle is provided with the air holes, the air nozzle is sealed and connected to the connecting holes, and the air holes are connected to the interior of the tube body.

7. The panel cleaning device according to any one of claims 1 to 5, characterized in that: Of the two air pipes, one is a first air pipe and the other is a second air pipe, and the second air pipe is located downstream of the first air pipe along the second direction; The angle between the first outlet direction of the first air pipe through its own air holes and the second direction is θ1, and the angle between the second outlet direction of the second air pipe through its own air holes and the second direction is θ2, 90°<θ1≤θ2.

8. The panel cleaning device according to claim 7, characterized in that: 120°≤θ1≤135°, and / or, 145°≤θ2≤150°.

9. The panel cleaning device according to claim 7, characterized in that: The first air duct is further located on a side of the second air duct close to the panel along a third direction, and the third direction is perpendicular to the panel surface.

10. A panel coating device, characterized in that: include: A paint spray head and a panel cleaning device as described in any one of claims 1 to 9, wherein the paint spray head is located on the downstream side of the panel cleaning device along the second direction.

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