Paint spraying equipment for electrical cabinet surface processing

Abstract

The invention relates to the field of paint spraying, in particular to paint spraying equipment for electrical cabinet surface processing, which comprises a telescopic paint spraying room, an air extractor and the like. An air extractor is arranged on the telescopic paint spray booth; and a plurality of air suction ports are formed in the air extractor. The coating cloth is wound through the winding roller, repeated folding damage of the coating cloth is avoided, the service life of the coating cloth is prolonged, meanwhile, after the coating cloth is unfolded, the surface of the coating cloth is in a flat state all the time, paint attachment is reduced, the manual cleaning difficulty is reduced, the side, facing a folding filter screen, of a first guide plate is arranged to be in an arc shape, and the coating cloth can be conveniently cleaned. The air flow is guided to the surface of the coating cloth, so that the coating cloth slightly shakes under the influence of the air flow, paint dripped on the surface of the coating cloth is shaken off, and the phenomenon that the paint is attached to the surface of the coating cloth is reduced.

Description

Technical Field

[0001] The present invention relates to the field of spray painting, and particularly to a spray painting device for the surface processing of electrical cabinets. Background Art

[0002] When spray painting an electrical cabinet, the existing retractable spray painting booth can retract and adjust the area of the spray painting area, flexibly applying spray painting operations for electrical cabinets of different sizes. And when the spray painting booth is not in use, it can be folded and stored, greatly reducing the floor area of the spray painting booth. During the use of the retractable spray painting booth, the existing covering cloth is stored between two adjacent fixed frames in a folded manner. When needed, after driving the fixed frames to unfold, the covering cloth is driven to unfold synchronously. In the case of long-term use of this covering cloth, cracks are likely to appear at the folding positions, resulting in the covering cloth losing its covering effect and reducing the service life of the covering cloth. Moreover, when the covering cloth is not fully unfolded, the wrinkles on its surface are more likely to adhere to the paint than a flat covering cloth, increasing the cleaning difficulty for workers in the later stage.

[0003] At the same time, in order to make the spray painting effect of the electrical cabinet better, lamps are usually suspended below the covering cloth for lighting, facilitating the staff to observe the spray painting situation. Considering that during the spray painting operation of the electrical cabinet, the air extraction structure cannot extract the paint in the first time, resulting in the situation that the paint is likely to disperse in the spray painting area, and the dispersed paint is likely to adhere to the surface of the lamp, thereby affecting the light source emitted by the lamp and affecting the judgment of the staff on the surface of the electrical cabinet after spray painting. Summary of the Invention

[0004] In order to overcome the shortcomings that the existing equipment is likely to cause the covering cloth to be damaged by multiple foldings, reducing the service life of the covering cloth, and the dispersed paint is likely to affect the lamp lighting, the present invention provides a spray painting device for the surface processing of electrical cabinets.

[0005] The technical solution is as follows: A spray painting device for the surface processing of electrical cabinets includes a retractable spray painting booth, an air extractor, and movable frames; an air extractor is arranged on the retractable spray painting booth; a plurality of air suction ports are arranged on the air extractor; a plurality of movable frames are connected to the left side of the air extractor, and each movable frame is connected through a scissor-type telescopic frame; it further includes a winding component, a coating cloth, a first guiding plate, and an air extraction system; a winding component is arranged on the left side of the air extractor; a plurality of coating cloths are wound on the winding component, and the surface of the coating cloth is made of a material resistant to paint adhesion; a flexible magnetic strip is arranged on each coating cloth, and each coating cloth is adsorbed and connected to the movable frame through the flexible magnetic strip; the plurality of coating cloths are arranged in a "冂" shape combination; a first guiding plate is rotatably connected to the lower side of each movable frame; an air extraction system is installed on the left side of the air extractor.

[0006] More preferably, the winding assembly includes a servo motor and a winding roller; three servo motors are fixedly connected to the left side of the vacuum pump; three winding rollers are rotatably connected to the left side of the vacuum pump; the output end of each servo motor is fixedly connected to the adjacent winding roller; and each winding roller is fixedly connected to the adjacent coating cloth.

[0007] More preferably, an air inlet groove is formed between every two adjacent coating cloths.

[0008] More preferably, it further comprises a folded filter screen; a folded filter screen is fixedly connected between a plurality of movable frames; and each folded filter screen covers an adjacent air inlet slot.

[0009] More preferably, a liquid collecting box is further included; a plurality of liquid collecting boxes are placed under the movable frame, and the coating cloth is directly opposite to the adjacent liquid collecting boxes.

[0010] More preferably, a side of each first guide plate facing the folded filter screen is arranged in an arc shape.

[0011] More preferably, the exhaust system includes a telescopic tube and a limit ring; a plurality of telescopic tubes are connected to the left side of the exhaust fan; an air hole is opened on the upper side of each telescopic tube; a plurality of limit rings are fixedly connected to each telescopic tube; and the left side of each telescopic tube is fixedly connected to the electric rolling door.

[0012] More preferably, a second guide plate is further included; a rectangular groove is provided on the upper side of each first guide plate; and a second guide plate is fixedly connected to a side of each first guide plate away from the folded filter screen.

[0013] More preferably, it also includes an extrusion plate, a collecting box, a scraper and a suction pipe; a plurality of extrusion plates are fixedly connected to the left side of the vacuum pump; each extrusion plate is in contact with the side of the adjacent coated cloth facing the outside; a plurality of collecting boxes are fixedly connected to the left side of the vacuum pump; each collecting box is located on the side of the adjacent coated cloth facing the paint spraying area; a scraper is fixedly connected to each collecting box; a suction pipe is fixedly connected to each collecting box; each suction pipe is connected to an external air pump.

[0014] More preferably, each extrusion plate is provided with a protrusion on the side facing the coating cloth.

[0015] Beneficial effects: The present invention realizes winding the coating cloth by the winding roller, thereby preventing the coating cloth from being damaged by multiple foldings, and prolonging the service life of the coating cloth. At the same time, after the coating cloth is unfolded, its surface is always flat, reducing the adhesion of paint and reducing the difficulty of manual cleaning;

[0016] The first guide plate is arranged in an arc shape on one side facing the folded filter screen, so that the airflow is guided to the surface of the coated cloth, so that the coated cloth is slightly shaken by the airflow, and the paint dripping on the surface is shaken off, thereby reducing the paint adhesion on the surface of the coated cloth;

[0017] The dripping paint is collected by the liquid collecting box to prevent the paint from flowing directly onto the slide rail and affecting the movement of the movable frame and the electric rolling door on the slide rail;

[0018] By extending the telescopic tube synchronously, the area with weak airflow on the left side of the coating cloth is sucked to avoid paint spillage and contamination of the external environment, thereby improving the paint collection capacity;

[0019] Under the blocking and guidance of the second guide plate, part of the airflow is blown toward the surface of the incandescent lamp through the rectangular groove, so that airflow is formed on the surface of the incandescent lamp, thereby making it difficult for the paint to adhere to the surface of the incandescent lamp, thereby reducing the possibility of the light source being interfered with by the paint;

[0020] By providing a protrusion on the side of each extrusion plate facing the coating cloth, the extrusion plate squeezes the coating cloth into a concave shape, thereby making the scraper blade and the coating cloth fit more closely, thereby enhancing the paint scraping effect of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the paint spraying equipment for surface processing of an electrical cabinet of the present invention;

[0022] Figure 2 It is a combined cross-sectional view of the movable frame and the electric rolling door of the present invention;

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the first guide plate and the incandescent lamp combination of the present invention;

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the first guide plate of the present invention;

[0025] Figure 5 It is a schematic diagram of the combined three-dimensional structure of the telescopic tube, the limiting ring and the second guide plate of the present invention;

[0026] Figure 6 is a cross-sectional view of a first guide plate of the present invention;

[0027] Figure 7 It is a cross-sectional view of the combination of the squeezing plate, the collecting box and the scraper blade of the present invention.

[0028] Marked in the figure: 1-vacuum fan, 1001-air inlet, 2-movable frame, 3-electric rolling door, 3001-covering film, 4-slide rail, 5-coating cloth, 5001-air inlet groove, 6-first guide plate, 6001-rectangular groove, 7-incandescent lamp, 8-liquid collecting box, 101-servo motor, 102-folded filter, 103-winding roller, 201-telescopic tube, 202-limiting ring, 203-second guide plate, 301-squeezing plate, 302-collecting box, 303-scraper, 304-suction straw. DETAILED DESCRIPTION

[0029] The present invention will be further described below in conjunction with the embodiments shown in the accompanying drawings.

[0030] Embodiment 1

[0031] As Figure 1-Figure 4 shown, a painting device for the surface processing of an electrical cabinet includes a telescopic painting booth, an air extractor 1, and a movable frame 2; the telescopic painting booth is provided with an air extractor 1; the air extractor 1 is provided with a plurality of air inlets 1001; the left side of the air extractor 1 is connected with a plurality of movable frames 2, and each movable frame 2 is connected through a scissor-type telescopic frame;

[0032] It further includes a winding component, a coating cloth 5, a first guiding plate 6, and an air extraction system; a winding component for extending the service life of the equipment is provided on the left side of the air extractor 1; three coating cloths 5 are wound on the winding component, and the surface of the coating cloth 5 is made of a material that prevents paint adhesion; each coating cloth 5 is provided with a flexible magnetic strip, and each coating cloth 5 is adsorbed and connected to the movable frame 2 through the flexible magnetic strip; the three coating cloths 5 are arranged in a "冂" shape combination to cover the upper side, front side, and rear side of the telescopic painting booth to form a painting area; a first guiding plate 6 for guiding the airflow to blow off the paint on the surface of the coating cloth 5 is rotatably connected to the lower side of each movable frame 2; an air extraction system for preventing the weak airflow on the left side after the coating cloth 5 is fully unfolded is installed on the left side of the air extractor 1.

[0033] The winding component includes a servo motor 101 and a winding roller 103; three servo motors 101 are fixedly connected to the left side of the air extractor 1; three winding rollers 103 for preventing the coating cloth 5 from being damaged are rotatably connected to the left side of the air extractor 1; the output end of each servo motor 101 is fixedly connected to the adjacent winding roller 103; each winding roller 103 is fixedly connected to the adjacent coating cloth 5.

[0034] An air inlet groove 5001 for ensuring the air intake volume is formed between every two adjacent coating cloths 5.

[0035] It further includes a folding filter screen 102; a folding filter screen 102 for preventing external dust from affecting the painting of the cabinet by the equipment is fixedly connected among a plurality of movable frames 2; each folding filter screen 102 covers the adjacent air inlet groove 5001.

[0036] It further includes a liquid collecting box 8; a plurality of liquid collecting boxes 8 for preventing the equipment from being hindered by paint and unable to operate are placed below the movable frame 2, and the coating cloth 5 is directly opposite to the adjacent liquid collecting box 8.

[0037] The side of each first guiding plate 6 facing the folding filter screen 102 is set to be arc-shaped to improve the effect of the first guiding plate 6 guiding the airflow to the surface of the coating cloth 5 and reduce the paint dripping on the surface of the coating cloth 5.

[0038] The telescopic paint spraying room includes an electric rolling door 3, a slide rail 4 and an incandescent lamp 7; the electric rolling door 3 is fixedly connected to the left side of the movable frame 2; a covering film 3001 is wound inside the electric rolling door 3; the right side of the electric rolling door 3 is fixedly connected to the left side of several coating cloths 5; two slide rails 4 are fixedly connected to the lower side of the vacuum fan 1, and the slide rails 4 are installed on the ground by bolts; each movable frame 2 is slidably connected to the adjacent slide rails 4 through a pulley; the electric rolling door 3 is slidably connected to the slide rails 4 through a pulley; the upper side of each slide rail 4 is fixedly connected to the adjacent liquid collecting box 8; an incandescent lamp 7 is fixedly connected to the side of each first guide plate 6 facing the paint spraying area; the electric rolling door 3 is moved to the left by electric control to unfold the movable frame 2.

[0039] When painting the electrical cabinet, the worker first starts the electric rolling door 3 to move to the left, and then drives each movable frame 2 to move to the left and unfold. Figure 1 As shown, the movable frame 2 then drives the coating cloth 5 to unfold, and a painting area is formed by the unfolded three coating cloths 5 and the electric rolling door 3. At this time, the staff pushes the electrical cabinet into the painting area, and then starts the electric rolling door 3 again to lower the covering film 3001, so that the lower side of the covering film 3001 retains a distance of fifty centimeters from the ground for air intake, and then turns on the incandescent lamp 7 for lighting, and then starts the vacuum pump 1 to work, and then the gas in the painting area is extracted into the external collector through the air intake 1001, and then the staff starts to spray paint the electrical cabinet, and the paint produced is scattered in the air and is blocked by the coating cloth 5 and the electric rolling door 3 to prevent the paint from spreading to the outside, and then the paint is extracted by the vacuum pump 1 to prevent the paint from spreading in the painting area.

[0040] In the above process, considering that the existing coating cloth 5 is stored by folding between the two movable frames 2, the long-term use of this method will greatly reduce the service life of the coating cloth 5. At the same time, when the staff can spray paint the electrical cabinet without fully unfolding the coating cloth 5, the coating cloth 5 is not fully unfolded and is folded, so that the surface of the coating cloth 5 becomes wrinkled and uneven. When spraying paint, the surface of the coating cloth 5 with wrinkles is more likely to adhere to paint than the flat coating cloth 5, thereby increasing the difficulty of cleaning for the workers later. In order to avoid this phenomenon, before the coating cloth 5 needs to be unfolded, the servo motor 101 is started to rotate, thereby driving the winding roller 103 to rotate, so that the winding roller 103 winds the coating cloth 5 onto the winding roller 103, and then The overwinding method prevents the coating cloth 5 from being damaged by multiple foldings, thereby extending the service life of the coating cloth 5. At the same time, when the staff needs to unfold the coating cloth 5 of different lengths to adapt to the painting of electrical cabinets of different sizes, they only need to drive the coating cloth 5 to move to the left by the electric rolling door 3, and the electric rolling door 3 synchronously drives the movable frame 2 to unfold to the left, and the servo motor 101 drives the winding roller 103 to unwind the coating cloth 5. When the coating cloth 5 is unfolded to the required length, the flexible magnetic strip on the coating cloth 5 is adsorbed by the movable frame 2, and then the left side and the rear side of the coating cloth 5 are fixed by the electric rolling door 3 and the winding roller 103 to prevent the coating cloth 5 from being pulled out too long and falling, so that after the coating cloth 5 is extended, its surface is always in a flat state for isolation work, thereby reducing the workload of later workers.

[0041] It is also considered that when a plurality of electrical cabinets are sprayed with paint for a long time, a large amount of paint will be scattered. At this time, the distance between the covering film 3001 and the ground needs to be reduced by 50 cm to prevent the paint from diffusing from the covering film 3001 and the ground to the outside, which will lead to poor overall air intake of the equipment. At this time, an air intake groove 5001 is formed between each two adjacent coating cloths 5. Figure 2 As shown, when the vacuum pump 1 is working, the external hole flows into the paint spraying area from the air inlet slot 5001, thereby ensuring the air intake of the equipment and making the air extraction of the vacuum pump 1 always consistent. At the same time, the folded filter 102 set on the air inlet slot 5001 blocks the dust in the air, preventing the dust in the air from directly entering the paint spraying area through the air inlet slot 5001 and affecting the spraying operation.

[0042] It is also taken into consideration that in order to reduce the adhesion of paint to the coating cloth 5 on the front and rear sides, each first guide plate 6 is set to an arc shape on one side facing the folded filter 102, so that when the air enters the paint spraying area, the airflow is guided by the arc-shaped first guide plate 6, and part of the airflow is guided to the surface of the coating cloth 5. The coating cloth 5 is slightly shaken by the airflow, and the paint dripping on its surface is shaken off, thereby reducing the paint adhesion phenomenon on the surface of the coating cloth 5, allowing the equipment to self-clean the coating cloth 5 during use, reducing the difficulty of cleaning for workers later, and the paint dripping and shaken off the surface of the coating cloth 5 is collected by the liquid collecting box 8 to prevent the paint from flowing onto the slide rail 4 and affecting the movement of the movable frame 2 and the electric rolling door 3 on the slide rail 4.

[0043] Example 2

[0044] On the basis of Example 1, Figure 5 and Figure 6 As shown, the exhaust system includes a telescopic tube 201 and a limit ring 202; the left side of the exhaust fan 1 is connected with a plurality of telescopic tubes 201 to prevent the weak airflow on the left side of the equipment after the coating cloth 5 is fully unfolded; an air hole is opened on the upper side of each telescopic tube 201; each telescopic tube 201 is fixedly connected with a plurality of limit rings 202 to prevent the telescopic tube 201 from collapsing; and the left side of each telescopic tube 201 is fixedly connected to the electric rolling door 3.

[0045] It also includes a second guide plate 203; a rectangular groove 6001 is opened on the upper side of each first guide plate 6; and a second guide plate 203 is fixedly connected to one side of each first guide plate 6 away from the folded filter 102 to prevent paint from interfering with the lighting of the incandescent lamp 7.

[0046] When it is necessary to fully unfold the coating cloth 5 for painting, since the fully unfolded coating cloth 5 is long and the vacuum fan 1 cannot move, the air flow in the left area of ​​the coating cloth 5 is poor. When the staff is painting in this area, the paint produced is difficult to be sucked away by the vacuum fan 1, which causes the paint to accumulate on the left side of the coating cloth 5, causing the paint to float out from between the covering film 3001 on the electric rolling door 3 and the ground, thereby polluting the external environment. In order to avoid this phenomenon, when the electric rolling door 3 drives the movable frame 2 and the coating cloth 5 to move to the left, the electric rolling door 3 synchronously drives the telescopic tube 201 to unfold to the left. Figure 5As shown, when the telescopic tube 201 is unfolded, the suction holes on the telescopic tube 201 are all facing the direction of the adjacent coated cloth 5. When the coated cloth 5 is fully unfolded, the telescopic tube 201 is unfolded synchronously. At this time, the vacuum pump 1 is started again, so that the air holes on the telescopic tube 201 generate suction, and then the area with weak airflow on the left side of the coated cloth 5 is sucked, so that the paint on the left side of the coated cloth 5 is sucked into the telescopic tube 201, and then flows into the vacuum pump 1 through the telescopic tube 201 for collection, so as to avoid paint overflow and polluting the external environment, and improve the paint collection capacity. At the same time, when the telescopic tube 201 is working, the multiple limit rings 202 on the telescopic tube 201 prevent the telescopic tube 201 from collapsing during air extraction, so as to avoid the telescopic tube 201 from being unable to work.

[0047] At the same time, when the staff is spraying paint on the electrical cabinet, considering that the vacuum fan 1 cannot extract the paint in the first time, causing part of the paint to float in the painting area, and the incandescent lamp 7 used for lighting is prone to uneven lighting when it is adhered by the scattered paint, thereby affecting the staff's painting work on the electrical cabinet. In order to avoid this phenomenon, when the outside air enters the painting area through the air inlet groove 5001, the airflow is divided into two streams by the first guide plate 6, one of which normally flows along the first guide plate 6 to the vacuum fan 1, and the other flows through the rectangular groove 6001 to the second guide plate 203. Under the blocking and guidance of the second guide plate 203, part of the airflow is blown toward the surface of the incandescent lamp 7, so that airflow is formed on the surface of the incandescent lamp 7, and the paint is difficult to adhere to the surface of the incandescent lamp 7, thereby reducing the possibility of the light source being interfered with by the paint, and effectively ensuring that the staff can carry out the painting work normally. At the same time, when the suction of the telescopic tube 201 causes the outside air to flow in from the air inlet groove 5001, the airflow is guided by the first guide plate 6 and the suction force of the telescopic tube 201 cooperates with each other, so that the airflow can better flow downward along the surface of the coating cloth 5 on the front and rear sides, and the paint on the surface of the coating cloth 5 is further blown off.

[0048] Example 3

[0049] On the basis of Examples 1 and 2, Figure 1 and Figure 7 As shown, it also includes an extrusion plate 301, a collecting box 302, a scraper 303 and a suction pipe 304; a plurality of extrusion plates 301 are fixedly connected to the left side of the vacuum pump 1; each extrusion plate 301 is in contact with the side of the adjacent coated cloth 5 facing the outside; a plurality of collecting boxes 302 are fixedly connected to the left side of the vacuum pump 1; each collecting box 302 is located on the side of the adjacent coated cloth 5 facing the paint spraying area; each collecting box 302 is fixedly connected to a scraper 303 for scraping off the residual paint on the coated cloth 5; each collecting box 302 is fixedly connected to a suction pipe 304; each suction pipe 304 is connected to an external air pump.

[0050] like Figure 7As shown, each pressing plate 301 is provided with a protrusion on the side facing the coating cloth 5 .

[0051] When the electrical cabinet painting work is completed, the servo motor 101 is driven to rotate, so that the winding roller 103 rotates and then the coating cloth 5 is wound onto the recovery roller 103. In this process, since the side of the coating cloth 5 facing the outside is in contact with the side of the coating cloth 5 facing the painting area, the side of the coating cloth 5 facing the outside is prone to adhere to some paint. In the subsequent process of unfolding and winding the coating cloth 5, the paint adhered to the outside side of the coating cloth 5 will contaminate the movable frame 2. At the same time, during the unfolding process of the coating cloth 5, the movable frame 2 will also block the paint adhered to the outside side of the coating cloth 5, so that the paint gathers on the outside side of the coating cloth 5, and the gathered paint will flow to the first guide plate 6 through the air inlet groove 5001, causing the first guide plate 6 to be contaminated. In order to avoid this phenomenon, during the winding process of the coating cloth 5, the coating cloth 5 is subjected to the extrusion plate 301. The coating cloth 5 is squeezed by the scraper blade 303 so that the side of the coating cloth 5 facing the painting area is closely attached to the scraper blade 303, so that the coating cloth 5 slowly slides on the scraper blade 303 during the winding process, and the paint on the surface of the coating cloth 5 is scraped off by the scraper blade 303, and the scraped paint flows into the collecting box 302 along the scraper blade 303. At this time, the suction pipe 304 is evacuated by an external air pump so that the paint in the collecting box 302 is sucked away by the suction pipe 304, thereby preventing the paint from adhering to the side of the coating cloth 5 facing the outside during the winding process, and preventing the paint from contaminating the movable frame 2 and the first guide plate 6. At the same time, the paint on the side of the coating cloth 5 facing the painting area is cleaned by the scraper blade 303. After the spraying is completed, there is no need for workers to clean the coating cloth 5, thereby freeing up manpower. At the same time, each squeezing plate 301 is used to squeeze the adjacent coating cloth 5 into a concave shape, such as Figure 7 As shown, the scraper blade 303 and the coating cloth 5 are more closely attached to each other, thereby enhancing the paint scraping effect of the equipment.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A paint spraying device for surface processing of an electrical cabinet, comprising a telescopic paint spraying room, an exhaust fan (1) and a movable frame (2); the exhaust fan (1) is arranged on the telescopic paint spraying room; the exhaust fan (1) is arranged on a plurality of air inlets (1001); a plurality of movable frames (2) are connected to the left side of the exhaust fan (1), and each movable frame (2) is connected via a scissor-type telescopic frame; characterized in that: It also includes a winding component, a coating cloth (5), a first guiding plate (6) and an air extraction system; a winding component is arranged on the left side of the air extractor (1); several coating cloths (5) are wound on the winding component, and the surface of the coating cloth (5) is made of a material that prevents paint adhesion; a flexible magnetic strip is arranged on each coating cloth (5), and each coating cloth (5) is adsorbed and connected to the movable frame (2) through the flexible magnetic strip; several coating cloths (5) are arranged in a "冂"-shaped combination; a first guiding plate (6) is rotatably connected to the lower side of each movable frame (2); an air extraction system is installed on the left side of the air extractor (1). The winding component includes a servo motor (101) and a winding roller (103); three servo motors (101) are fixedly connected to the left side of the air extractor (1); three winding rollers (103) are rotatably connected to the left side of the air extractor (1); the output end of each servo motor (101) is fixedly connected to the adjacent winding roller (103); each winding roller (103) is fixedly connected to the adjacent coating cloth (5).

2. The paint spraying equipment for surface processing of an electrical cabinet according to claim 1, characterized in that: An air inlet groove (5001) is formed between every two adjacent coating cloths (5).

3. The paint spraying equipment for surface processing of an electrical cabinet according to claim 1, characterized in that: It also includes a folding filter screen (102); the folding filter screen (102) is fixedly connected among several movable frames (2); each folding filter screen (102) covers the adjacent air inlet groove (5001).

4. The paint spraying equipment for surface processing of an electrical cabinet according to claim 3, characterized in that: It also includes a liquid collecting box (8); several liquid collecting boxes (8) are placed below the movable frame (2), and the coating cloth (5) is opposite to the adjacent liquid collecting box (8).

5. The paint spraying equipment for surface processing of an electrical cabinet according to claim 3, characterized in that: The side of each first guiding plate (6) facing the folding filter screen (102) is arc-shaped.

6. A paint spraying device for surface processing of an electrical cabinet according to any one of claims 1 to 5, characterized in that: The air extraction system includes a telescopic pipe (201) and a limiting ring (202); several telescopic pipes (201) are communicated with the left side of the air extractor (1); air holes are formed in the upper side of each telescopic pipe (201); several limiting rings (202) are fixedly connected to each telescopic pipe (201); the left side of each telescopic pipe (201) is fixedly connected to the electric rolling door (3).

7. The paint spraying equipment for surface processing of an electrical cabinet according to claim 6, characterized in that: It also includes a second guiding plate (203); a rectangular groove (6001) is formed in the upper side of each first guiding plate (6); a second guiding plate (203) is fixedly connected to the side of each first guiding plate (6) far away from the folding filter screen (102).

8. The paint spraying equipment for surface processing of an electrical cabinet according to claim 6, characterized in that: It also includes an extrusion plate (301), a collection box (302), a scraping blade (303) and a suction pipe (304); several extrusion plates (301) are fixedly connected to the left side of the air extractor (1); each extrusion plate (301) is in contact with the side of the adjacent coating cloth (5) facing the outside; several collection boxes (302) are fixedly connected to the left side of the air extractor (1); each collection box (302) is located on the side of the adjacent coating cloth (5) facing the painting area; a scraping blade (303) is fixedly connected to each collection box (302); a suction pipe (304) is fixedly connected to each collection box (302); each suction pipe (304) is connected to an external air pump.

9. The paint spraying equipment for surface processing of an electrical cabinet according to claim 8, characterized in that: Protrusions are arranged on the side of each extrusion plate (301) facing the coating cloth (5).

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