Coating machine with cooling structure

Abstract

The utility model discloses a coating machine with a cooling structure, which comprises a coating machine frame, a transmission motor arranged on the coating machine frame, a driving shaft movably arranged at one end of the coating machine frame and connected with the transmission motor, a driven shaft movably arranged on the coating machine frame, and a conveyor belt sleeved on the driving shaft and the driven shaft, a scraper assembly and an air cooling assembly are mounted on the coating machine rack; a heat dissipation block is further installed on the coating machine rack, the heat dissipation block and the air cooling assembly are both located between the transmission motor and the scraper assembly, and the heat dissipation block and the air cooling assembly are both used for cooling coating which does not pass through the scraper assembly. According to the utility model, the temperature rising speed of the coating can be reduced, so that the solidification speed of the coating is further reduced, and the coating quality and the product quality are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of coating machines, in particular to a coating machine with a cooling structure. Background Art

[0002] Coating machines are mainly used for surface coating production of films, paper, etc. This machine coats the rolled substrate with a layer of glue, paint or ink with specific functions, and then cuts it into sheets or rolls it up after drying.

[0003] However, some existing coatings need to be mixed before being applied to the substrate. The mixed coating will release heat at room temperature, and the solidification speed of the coating will accelerate with the increase of temperature. Therefore, the coating may solidify prematurely, making it difficult to apply with a scraper, resulting in uneven application or even failure to apply, which will lead to coating failure and affect the coating quality.

[0004] Therefore, how to lower the temperature of the coating, reduce the solidification speed of the coating, and ensure the coating quality is a technical problem that needs to be solved urgently. Utility Model Content

[0005] The utility model aims to provide a coating machine with a cooling structure to solve the problem in the background technology that the existing coating solidifies before coating, thus affecting the coating quality.

[0006] In order to achieve the above-mentioned purpose, the utility model proposes a coater with a cooling structure, including a coater frame, a transmission motor installed on the coater frame, a driving shaft movably installed on one end of the coater frame and connected to the transmission motor, a driven shaft movably installed on the coater frame, and a conveyor belt sleeved on the driving shaft and the driven shaft, wherein a scraper assembly and an air cooling assembly are installed on the coater frame; a heat sink is also installed on the coater frame, and the heat sink and the air cooling assembly are both located between the transmission motor and the scraper assembly, and the heat sink and the air cooling assembly are both used to cool down the paint that has not passed through the scraper assembly.

[0007] Optionally, a water circulation structure is connected to the heat dissipation block, and the scraper assembly includes a scraper frame installed on the coater frame, a lifting cylinder installed on the scraper frame, a connecting block installed on the lifting cylinder, and a scraper installed on the connecting block; the top surface of the heat dissipation block contacts the inner surface of the conveyor belt.

[0008] Optionally, a cavity is provided on the scraper, and connecting pipes are provided on both ends of the scraper, and the connecting pipes are connected to the water circulation structure.

[0009] Optionally, the scraper holder is provided with a guide hole, and a guide rod connected to the scraper passes through the guide hole.

[0010] Optionally, the water circulation structure includes a water tank installed on the coater frame, a water pump installed on the water tank, a heat dissipation water inlet pipe with one end installed at the water outlet of the water pump, a heat dissipation water outlet pipe connected to the heat dissipation block, a heat exchange block installed on the coater frame and connected to the heat dissipation water outlet pipe at one end, and a return water pipe installed on the water tank and connected to the other end of the heat exchange block; the top surface of the heat exchange block is also in contact with the inner surface of the conveyor belt, and the installation positions of the heat exchange block and the heat dissipation block on the coater frame are located on both sides of the scraper.

[0011] Optionally, the heat sink block and the heat exchange block are both made of copper and have the same structure. The heat sink block and the heat exchange block are both provided with through holes, and water distribution pipes are installed on the through holes. The other end of the water distribution pipe is connected to a water storage box. The two water storage boxes are connected to the heat dissipation water inlet pipe and the heat dissipation water outlet pipe respectively.

[0012] Optionally, the two water storage boxes connected to the heat exchange block are respectively connected to the heat dissipation water outlet pipe and the water return pipe.

[0013] Optionally, a protective shell is installed on the coating machine frame, a heating coil is installed in the protective shell, and the heat dissipation water outlet pipe runs through the protective shell and the heating coil.

[0014] Optionally, a pressurized water pump is also installed on the water storage tank, the water inlet pipe of the pressurized water pump is connected to the return pipe, and the water outlet pipe of the pressurized water pump is inserted into the water storage tank.

[0015] Optionally, the air cooling assembly includes an air cooler, an air cooling mounting frame installed on the coating machine frame, a cold air pipe with one end installed at the air outlet of the air cooler, and an air duct structure arranged on the air cooling mounting frame and connected to the other end of the cold air pipe.

[0016] Optionally, the air duct structure includes a connecting hole arranged at the top of the air cooling mounting frame and connected to the cold air duct, an air distribution channel arranged on the air cooling mounting frame and connected to the connecting hole, and a cold air outlet pipe arranged at the bottom of the air cooling mounting frame and connected to the air distribution channel.

[0017] Compared with the prior art, the utility model provides a coating machine with a cooling structure, which has the following beneficial effects:

[0018] The coating machine with a cooling structure is provided with an air cooling component and a heat sink block, wherein the air cooling component conveys cold air so that the cold air contacts the coating, cools down the coating, reduces the heating rate of the coating, ensures that the coating does not solidify before passing through the scraper, and facilitates the scraper to apply the coating to the substrate, thereby ensuring the coating quality and the product quality; the heat sink block contacts the inner wall of the conveyor belt, absorbs and dissipates the heat of the conveyor belt, cools down the conveyor belt, and the lowered temperature of the conveyor belt can absorb the temperature of the coating, reduces the heating rate of the coating, thereby further reducing the solidification rate of the coating, ensuring the coating quality and the product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the utility model.

[0020] Figure 2 It is a schematic diagram of the overall structure of embodiment 1 of the utility model from another perspective.

[0021] Figure 3 It is a structural schematic diagram of the air cooling component of the utility model.

[0022] Figure 4 It is a schematic diagram of the air duct structure of the utility model.

[0023] Figure 5 It is a structural schematic diagram of a coating machine frame of the utility model.

[0024] Figure 6 It is a schematic diagram of the heat dissipation block, the heat exchange block and the coating machine frame of the utility model.

[0025] Figure 7 It is a cross-sectional view of the heat dissipation block of the utility model.

[0026] Figure 8 It is a structural schematic diagram of the scraper assembly of the utility model.

[0027] Fig. 9 It is a cross-sectional view of the scraper assembly of the utility model.

[0028] Fig.10 It is a schematic diagram of the overall structure of Example 2 of the utility model.

[0029] Fig.11 It is a schematic diagram of the overall structure of embodiment 2 of the utility model from another perspective.

[0030] Fig.12 It is a schematic diagram of the positions of the heating coil and the protective shell of the utility model.

[0031] Markings in the figure: 1. Coating machine frame; 11. Transmission motor; 12. Driving shaft; 13. Driven shaft; 14. Conveyor belt; 15. Protective shell; 16. Heating coil; 2. Scraper assembly; 21. Scraper frame; 211. Guide hole; 22. Lifting cylinder; 23. Connecting block; 24. Scraper; 241. Cavity; 242. Connecting pipe; 243. Guide rod; 3. Air cooling assembly; 31. Air cooling mounting frame ; 32. Air cooler; 33. Cold air duct; 34. Air duct structure; 341. Connecting hole; 342. Air distribution channel; 343. Cold air outlet pipe; 4. Heat sink; 41. Through hole; 42. Water distribution pipe; 43. Water storage box; 5. Water circulation structure; 51. Water storage tank; 511. Pressurized water pump; 52. Water pump; 53. Heat dissipation water inlet pipe; 54. Heat dissipation water outlet pipe; 55. Heat exchange block; 56. Return pipe. DETAILED DESCRIPTION

[0032] The following is a detailed description in conjunction with the accompanying drawings and specific implementations. In the following description, many specific details are set forth to facilitate a full understanding of the present utility. However, the present utility can be implemented in many other ways different from those described herein, and those skilled in the art can make similar generalizations without violating the connotation of the present utility, so the present utility is not limited by the specific embodiments disclosed below.

[0033] A coating machine with a cooling structure in the present application can be used in situations where the mixed coating generates heat, causing the coating to solidify prematurely, and of course can also be used in other similar application scenarios. A coating machine with a cooling structure is described in detail below.

[0034] Example 1

[0035] See attached Figure 1 — Fig. 9 As shown, a schematic diagram of the structure of a preferred embodiment of a coating machine with a cooling structure of the present application is shown. The coating machine with a cooling structure comprises a coating machine frame 1, a transmission motor 11 mounted on the coating machine frame 1, a driving shaft 12 movably mounted on one end of the coating machine frame 1 and connected to the transmission motor 11, a driven shaft 13 movably mounted on the coating machine frame 1, and a conveyor belt 14 sleeved on the driving shaft 12 and the driven shaft 13; wherein, a scraper assembly 2 and an air cooling assembly 3 are mounted on the coating machine frame 1; a heat sink 4 is also mounted on the coating machine frame 1, and both the heat sink 4 and the air cooling assembly 3 are located between the transmission motor 11 and the coating machine frame 2, and both the heat sink 4 and the air cooling assembly 3 are used to cool down the coating that has not passed through the coating machine frame 2.

[0036] The utility model provides a power source for the movement of the paint by setting a transmission motor 11; limits the thickness of the paint by setting a scraper assembly 2, flattens the paint, and improves the coating quality; blows cold air toward the paint by setting an air cooling assembly 3 to reduce the temperature of the paint, thereby reducing the heating rate of the paint and the solidification rate of the paint, making it easier for the scraper to scrape the paint, improving the coating quality, and thus improving the product quality; cools the conveyor belt 14 by setting a heat sink 4, so that the temperature of the conveyor belt 14 is lower than the temperature of the paint, and the temperature of the paint can be absorbed and transferred, thereby further increasing the temperature of the paint, reducing the heating rate of the paint, and preventing the paint from solidifying before passing through the scraper, making it easier for the scraper to scrape the paint, improving the coating quality, and thus improving the product quality.

[0037] See attached Figure 1 , Figure 8 and Fig. 9 As shown, in the utility model, a water circulation structure 5 is connected to the heat dissipation block 4, and the scraper assembly 2 includes a scraper frame 21 installed on the coating machine frame 1, a lifting cylinder 22 installed on the scraper frame 21, a connecting block 23 installed on the lifting cylinder 22, and a scraper 24 installed on the connecting block 23; the top surface of the heat dissipation block 4 contacts the inner surface of the conveyor belt 14.

[0038] The utility model cools the heat sink 4 by setting a water circulation structure 5 to prevent the heat sink 4 from absorbing too much heat and causing the temperature to rise and failing to dissipate heat normally; provides an installation position for the lifting cylinder 22 by setting a scraper frame 21; provides a power source for the lifting and lowering movement of the scraper 24 by setting the lifting cylinder 22, so that the thickness of the coating can be adjusted; connects the lifting rod of the lifting cylinder 22 to the scraper 24 by setting a connecting block 23, so that the lifting cylinder 22 can drive the scraper 24 to move up and down.

[0039] See attached Figure 8 and Fig. 9 As shown, in the utility model, the scraper 24 is provided with a cavity 241, and connecting pipes 242 are provided on both ends of the scraper 24, and the connecting pipes 242 are connected to the water circulation structure 5; the scraper frame 21 is provided with a guide hole 211, and a guide rod 243 connected to the scraper 24 passes through the guide hole 211.

[0040] The utility model sets the cavity 241 in cooperation with the connecting pipe 242 so that the coolant in the water circulation structure 5 can enter the scraper 24, cool the scraper 24, and prevent the scraper from being overheated. When the scraper is scraping the paint, the paint can be cooled down to reduce the solidification speed of the paint during scraping and improve the coating quality. The guide hole 211 is set in cooperation with the guide rod 243 to guide the lifting and lowering movement of the scraper 24. The connecting pipe 242 is connected to the cavity 241 so that the coolant in the cavity 241 can circulate through the water circulation structure 5, control the temperature of the scraper 24, and prevent the scraper from being overheated.

[0041] See attached Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, in the utility model, the water circulation structure 5 includes a water storage tank 51 installed on the coating machine frame 1, a water pump 52 installed on the water storage tank 51, a heat dissipation water inlet pipe 53 installed at one end at the water outlet of the water pump 52, a heat dissipation water outlet pipe 54 connected to the heat dissipation block 4, a heat exchange block 55 installed on the coating machine frame 1 and connected to the heat dissipation water outlet pipe 54 at one end, a heat exchange block 55 installed on the water storage tank 51 and connected to the heat dissipation water outlet pipe 54 at one end, and a heat exchange block 55 installed on the water storage tank 51 and connected to the heat dissipation water outlet pipe 54 at one end. A return pipe 56 is on the water tank 51 and connected to the other end of the heat exchange block 55; the top surface of the heat exchange block 55 is also in contact with the inner surface of the conveyor belt 14, and the installation positions of the heat exchange block 55 and the heat dissipation block 4 on the coating machine frame 1 are located on both sides of the scraper 24. Specifically, the heat dissipation block 4 is located at the front end of the scraper 24, and the heat exchange block 55 is located at the rear end of the scraper 24. The direction of the heat dissipation block 4 as the starting point and toward the heat exchange block 55 is the same as the moving direction of the paint on the top surface of the conveyor belt 14.

[0042] The utility model provides a storage space for the coolant by setting a water tank 51, so that the coolant can be stored. It should be particularly noted that the water tank 51 is provided with a filling port and a cleaning port; the coolant in the water tank 51 is pumped out by setting a water pump 52, and pressure is applied so that the coolant can be discharged from the water tank 51 and enter the heat sink 4, so that the coolant can absorb the heat of the heat sink 4, reduce the temperature of the heat sink 4, ensure that the heat sink 4 can absorb the heat of the conveyor belt 14, absorb the heat of the paint, and reduce the temperature of the paint. , reducing the solidification speed of the paint; through the setting of the heat dissipation outlet pipe 54, the heat dissipation block 4 is connected with the heat exchange block 55, that is, the coolant carrying the heat of the heat dissipation block 4 enters the heat exchange block 55, which will heat the heat exchange block 55, so that the temperature of the heat exchange block 55 rises, the heat exchange block 55 transfers the heat to the conveyor belt 14, and the conveyor belt 14 transfers the heat to the paint, so that the paint is warmed up, the solidification speed of the paint is accelerated, and the drying time of the paint is reduced, thereby improving the production efficiency; through the setting of the return pipe 56, the coolant can be returned to the water storage tank 51 for recycling.

[0043] See attached Figure 6 and Figure 7 As shown, in the present invention, the heat sink 4 and the heat exchange block 55 are both supported by copper material and have the same structure; wherein, the heat sink 4 and the heat exchange block 55 are evenly distributed with a plurality of through holes 41, and a water distribution pipe 42 is installed on the through hole 41, and another point of the water distribution pipe 42 is connected to a water storage box 43. The present invention uses copper material to make the heat sink 4 and the heat exchange block 55 because the copper material is stable and has a good heat transfer effect, and can be rubbed with the conveyor belt 14 for a long time; through the setting of the through hole 41, the contact area between the heat sink 4 and the heat exchange block 55 and the coolant is increased, and the heat exchange efficiency between the heat sink 4 and the heat exchange block 55 and the coolant is improved, thereby enhancing the heat exchange effect; through the setting of the water storage box 43, the coolant is temporarily stored, providing the necessary conditions for the subsequent diversion and confluence of the coolant; through the setting of the water distribution pipe 42, the coolant in the water storage box 43 is diverted and merged, and the contact area between the coolant and the heat sink 4 and the coolant and the heat exchange block 55 is increased.

[0044] It should be particularly noted that in the present invention, the two water storage boxes 43 connected to the heat dissipation block 4 are respectively connected to the heat dissipation water inlet pipe 53 and the heat dissipation water outlet pipe 54; the two water storage boxes 43 connected to the heat exchange block 55 are respectively connected to the heat dissipation water outlet pipe 54 and the return water pipe 56.

[0045] See attached Figure 3 and Figure 4As shown, in the utility model, the air cooling component 3 includes an air cooler 32, an air cooling mounting frame 31 installed on the coating machine frame 1, a cold air pipe 33 with one end installed at the air outlet of the air cooler 32, and an air duct structure 34 arranged on the air cooling mounting frame 31 and connected with the other end of the cold air pipe 33; wherein the air duct structure 34 includes a connecting hole 341 arranged on the top of the air cooling mounting frame 31 and connected with the cold air pipe 33, an air distribution channel 342 arranged on the air cooling mounting frame 31 and connected with the connecting hole 341, and a cold air outlet pipe 343 arranged at the bottom of the air cooling mounting frame 31 and connected with the air distribution channel 342.

[0046] The utility model provides cold air through the setting of the cold air machine 32, which is used to provide a wind source for cooling the paint; the cold air pipe 33 is used to guide the cold air generated by the cold air machine 32 so that the cold air can contact the paint, cool the paint, reduce the solidification speed of the paint, and facilitate the scraper to scrape the paint; the air duct structure 34 is used to diffuse the cold air, so that the contact area between the cold air and the paint is increased, ensuring that the paint is cooled evenly, preventing the situation where part of the paint is cooled and part of the paint is heated, thereby ensuring the coating quality. It should be specially noted that the cold air machine 32 in the present application can be suspended in different sizes according to needs. When the cold air machine is small, it can be installed on the top of the air cooling mounting frame 31, and when the cold air machine is large, it can be placed on the ground; the air distribution channel 342 is distributed in a mesh shape, the cold air mounting frame is formed by integrated processing, and the air distribution channel 342 can also be formed by processing, but the end of the air distribution channel 342 needs to be sealed with a pipe plug.

[0047] See attached Figure 1 — Fig. 9 As shown, the cooling process of the coating in the present invention is as follows:

[0048] First, the air cooler 32 in the air cooling component 3 starts to work, and the cold air generated enters the air duct structure 34 through the cold air pipe 33 to cool the paint and reduce the solidification speed of the paint; specifically, the cold air generated by the air cooler 32 enters the connecting hole 341 through the cold air pipe 33, and then is dispersed through the air distribution channel 342, and finally is discharged through the cold air outlet pipe 343 to contact the paint.

[0049] When the air cooling assembly 3 is working, the water circulation structure 5 also starts to work, the water pump 52 draws out the coolant in the water tank 51 and transports it to the heat dissipation water inlet pipe 53, and enters the water storage box 43 on one end of the heat dissipation block 4 along the heat dissipation water inlet pipe 53. The water storage box 43 enters the through hole 41 of the heat dissipation block 4 through the water distribution pipe 42 connected thereto, cools the heat dissipation block 4, reduces the temperature of the heat dissipation block 4, and enables the heat dissipation block 4 to absorb the heat of the conveyor belt 14, ensuring that the heat generated by the coating mixture can be absorbed and the temperature of the coating can be reduced; the coolant passing through the heat dissipation block 4 passes through the heat dissipation block 4 on the other end The water distribution pipe 42 enters another water storage box 43 connected to the heat dissipation block 4, and then enters a water storage box 43 connected to the heat exchange block 55 through the heat dissipation outlet pipe 54, and then enters the heat exchange block 55 through the water distribution pipe 42 connected to the water storage box 43. At this time, the temperature of the coolant passing through the heat dissipation block 4 rises, and the heat is transferred to the heat exchange block 55, thereby increasing the temperature of the heat exchange block 55, so that the temperature of the conveyor belt 14 can be increased, and the temperature of the paint on the conveyor belt 14 can be increased, the solidification speed of the paint can be accelerated, the drying time can be reduced, and the production efficiency can be improved. Finally, the coolant passing through the heat exchange block 55 returns to the water storage tank 51 through the return pipe 56.

[0050] Example 2

[0051] See attached Fig.10 — Fig.12 As shown, the difference between this embodiment and embodiment 1 is that, in this embodiment, a protective shell 15 is installed on the coating machine frame 1, a heating coil 16 is installed in the protective shell 15, and a heat dissipation outlet pipe 54 passes through the protective shell 15 and the heating coil 16; a pressurized water pump 511 is also installed on the water tank 51, the water inlet pipe of the pressurized water pump 511 is connected to the return pipe 56, and the water outlet pipe of the pressurized water pump 511 is inserted into the water tank 51.

[0052] The utility model wraps and isolates the heating coil 16 by setting the protective shell 15 to prevent workers from contacting the heating coil 16; the cooling liquid is heated again by setting the heating coil 16 to ensure that the temperature of the cooling liquid is higher than the temperature of the heat exchange block 55, which can accelerate the heating speed of the paint and the solidification speed of the paint; the pressure water pump 511 is set to impact the cooling liquid in the water tank 51 when the cooling liquid enters the water tank 51, thereby accelerating the cooling speed of the cooling liquid. It should be particularly noted that the cooling liquid in this embodiment uses clean water as the cooling liquid.

[0053] The above embodiments are descriptions of the present application, not limitations of the present application. Any solution that is a simple transformation of the present application belongs to the protection scope of the present application.

Claims

1. A coating machine with a cooling structure, comprising a coating machine frame (1), a transmission motor (11) mounted on the coating machine frame (1), a driving shaft (12) movably mounted on one end of the coating machine frame (1) and connected to the transmission motor (11), a driven shaft (13) movably mounted on the coating machine frame (1), and a conveyor belt (14) sleeved on the driving shaft (12) and the driven shaft (13), characterized in that: A scraper assembly (2) and an air cooling assembly (3) are mounted on the coating machine frame (1); a heat sink (4) is also mounted on the coating machine frame (1); the heat sink (4) and the air cooling assembly (3) are both located between the transmission motor (11) and the scraper assembly (2); the heat sink (4) and the air cooling assembly (3) are both used to cool down the coating material that has not passed through the scraper assembly (2).

2. The coating machine with a cooling structure according to claim 1, characterized in that: The heat dissipation block (4) is connected to a water circulation structure (5); the scraper assembly (2) comprises a scraper frame (21) mounted on a coating machine frame (1), a lifting cylinder (22) mounted on the scraper frame (21), a connecting block (23) mounted on the lifting cylinder (22), and a scraper (24) mounted on the connecting block (23); the top surface of the heat dissipation block (4) is in contact with the inner surface of the conveyor belt (14).

3. The coating machine with a cooling structure according to claim 2, characterized in that: The scraper (24) is provided with a cavity (241), and both ends of the scraper (24) are provided with connecting pipes (242), and the connecting pipes (242) are connected to the water circulation structure (5); The scraper frame (21) is provided with a guide hole (211), and a guide rod (243) connected to the scraper (24) passes through the guide hole (211).

4. The coating machine with a cooling structure according to claim 3, characterized in that: The water circulation structure (5) comprises a water storage tank (51) mounted on the coating machine frame (1), a water pump (52) mounted on the water storage tank (51), a heat dissipation water inlet pipe (53) with one end mounted at the water outlet of the water pump (52), a heat dissipation water outlet pipe (54) connected to the heat dissipation block (4), a heat exchange block (55) mounted on the coating machine frame (1) and with one end connected to the heat dissipation water outlet pipe (54), and a return water pipe (56) mounted on the water storage tank (51) and connected to the other end of the heat exchange block (55); the top surface of the heat exchange block (55) is also in contact with the inner surface of the conveyor belt (14), and the installation positions of the heat exchange block (55) and the heat dissipation block (4) on the coating machine frame (1) are located on both sides of the scraper (24).

5. The coating machine with a cooling structure according to claim 4, characterized in that: The heat sink (4) and the heat exchange block (55) are both made of copper and have the same structure. Through holes (41) are evenly distributed on the heat sink (4) and the heat exchange block (55). A water distribution pipe (42) is installed on the through hole (41). The other end of the water distribution pipe (42) is connected to a water storage box (43).

6. The coating machine with a cooling structure according to claim 5, characterized in that: The two water storage boxes (43) connected to the heat dissipation block (4) are respectively connected to a heat dissipation water inlet pipe (53) and a heat dissipation water outlet pipe (54); The two water storage boxes (43) connected to the heat exchange block (55) are respectively connected to the heat dissipation water outlet pipe (54) and the water return pipe (56).

7. The coating machine with a cooling structure according to claim 4, characterized in that: A protective shell (15) is installed on the coating machine frame (1), a heating coil (16) is installed in the protective shell (15), and the heat dissipation water outlet pipe (54) is arranged to penetrate the protective shell (15) and the heating coil (16).

8. The coating machine with a cooling structure according to claim 4, characterized in that: A pressurized water pump (511) is also installed on the water storage tank (51), the water inlet pipe of the pressurized water pump (511) is connected to the water return pipe (56), and the water outlet pipe of the pressurized water pump (511) is inserted into the water storage tank (51).

9. The coating machine with a cooling structure according to claim 1, characterized in that: The air cooling assembly (3) comprises an air cooler (32), an air cooling mounting frame (31) mounted on the coating machine frame (1), a cold air pipe (33) having one end mounted at the air outlet of the air cooler (32), and an air duct structure (34) disposed on the air cooling mounting frame (31) and connected to the other end of the cold air pipe (33).

10. The coating machine with a cooling structure according to claim 9, characterized in that: The air duct structure (34) comprises a connecting hole (341) arranged at the top of the air cooling mounting frame (31) and connected to the cold air pipe (33), an air distribution channel (342) arranged on the air cooling mounting frame (31) and connected to the connecting hole (341), and a cold air outlet pipe (343) arranged at the bottom of the air cooling mounting frame (31) and connected to the air distribution channel (342).

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