Automatic paint spraying device capable of reducing exhaust emission

Abstract

The utility model discloses an automatic paint spraying device capable of reducing waste gas emission, which comprises a spraying box, the outer side of the spraying box is movably connected with a first box door, the first box door and the side wall of the opposite side of the first box door are correspondingly provided with paint spraying piece conveying belt butt joint ports, the spraying box is provided with a controller, the right side of the spraying box is communicated with a filter box, and the filter box is communicated with the controller. The front side of the filter box is movably connected with a second box door, two leakage plates which are distributed up and down at equal intervals are fixed in the filter box in a suspended mode, a wire mesh demister is arranged on the bottom face of the filter box, V-shaped paint mist filter paper and paint mist filter cotton are sequentially arranged on the top faces of the two leakage plates from bottom to top, the top face of the filter box is perpendicularly connected with an air box communicated with the spraying box, and a paint spraying piece is arranged in the spraying box. A screen printing plate is arranged below the paint spraying piece and fixed to the bottom in the spraying box. According to the utility model, the side surface of the spraying box is communicated with the filter box, and the screen mesh demister, the V-shaped paint mist filter paper and the paint mist filter cotton are sequentially arranged in the filter box, so that paint mist generated during paint spraying of a paint-sprayed part is filtered and discharged, and the paint mist is prevented from damaging the environment and the body health of operators.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic component production equipment, in particular to an automatic paint spraying device for reducing waste gas emissions. Background Art

[0002] Single solar cells cannot be used directly as power sources. To use them as power sources, several single cells must be connected in series or parallel and tightly packaged into modules. Solar cell modules (also called solar panels) are the core and most important part of solar power generation systems. Their function is to convert solar energy into electrical energy, either to store it in batteries or to drive loads.

[0003] Photovoltaic modules are composed of external frames and photovoltaic panels. Since photovoltaic modules are placed outdoors for a long time, their external frames are easily corroded by external rain and air. In order to improve the corrosion resistance of the photovoltaic module frame, it is usually necessary to spray anti-corrosion paint of a composite material on one side of the external frame. When spraying the external frame, a large amount of paint mist will be generated. These paint mists are directly discharged to the outdoors without being filtered and purified, which will pollute the atmospheric environment and also affect the health of the spray painters in the factory. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes an automatic painting device which reduces exhaust gas emission.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An automatic paint spraying device for reducing exhaust gas emissions comprises a spray box, the outer side of the spray box is movably connected to a first box door, a paint spraying part conveyor belt docking interface is arranged on the first box door and on the side wall opposite to the first box door, the spray box is provided with a controller, the right side of the spray box is connected to a filter box, the front side of the filter box is movably connected to a second box door, two leakage plates equidistantly distributed up and down are suspended and fixed in the filter box, a wire mesh demister is arranged on the bottom surface of the filter box, V-shaped paint mist filter paper and paint mist filter cotton are arranged on the top surfaces of the two leakage plates in sequence from bottom to top, the top surface of the filter box is vertically connected to a bellows connected to the spray box, a paint spraying part is arranged in the spray box, a screen is arranged below the paint spraying part, and the screen is fixed to the bottom of the spray box.

[0007] As a further description of the above technical solution: the paint spraying part includes a guide plate suspended in the spray box, the guide plate is laterally slidably connected in the spray box, the front side of the guide plate is telescopically connected to a support block, the bottom surface of the support block is lifted and connected to a hollow block, the bottom surface of the hollow block is vertically connected to a spray head, a paint storage tank is provided in the spray box, the paint storage tank is connected to the hollow block through a delivery pipe, and the delivery pipe is a hose.

[0008] As a further description of the above technical solution: the side of the guide plate horizontally passes through two guide blocks that are mirror-symmetrical up and down, and each of the guide holes is axially slidably connected to a light rod, and the light rod is horizontally fixed in the spray box. A threaded hole horizontally passes through the center of the side of the guide plate, and a screw rod is threadedly connected in the threaded hole. One end of the screw rod is rotatably connected to an inner wall of one side of the spray box, and the other end is transmission-connected to a drive motor, and the drive motor is horizontally fixed in the spray box.

[0009] As a further description of the above technical solution: an electric push rod is horizontally fixed on the front side of the guide plate, the end of the electric push rod is fixedly connected to the support block, the bottom surface of the support block is vertically fixed to the lifting motor, the output end of the lifting motor is transmission-connected to the drive shaft, and the hollow block is fixed to the end of the drive shaft.

[0010] As a further description of the above technical solution: the top surface of the wind box is vertically connected to the air duct, the wind box is connected to the spray box through a connection, a partition is suspended in the spray box, the partition is located above the paint spray part, the center of the top surface of the partition passes through a through groove, paint mist filter cotton is fixed in the through groove, a centrifugal fan concentric with the connecting pipe is fixed on the side of the spray box, the centrifugal fan is located in the wind box, and the lower end inner wall of the spray box horizontally passes through an air outlet connected to the filter box.

[0011] As a further description of the above technical solution: an internal thread is provided at the upper opening of the inner wall of the air duct, an external thread ring is threadedly connected to the upper opening of the air duct, a dust net is fixed to the inner wall of the external thread ring, and two radially symmetrical grip blocks are fixed to the top surface of the external thread ring.

[0012] The utility model has the following beneficial effects:

[0013] 1. Compared with the prior art, the automatic painting device for reducing exhaust gas emissions is connected to a filter box on the side of the spray box, and a wire mesh demister, a V-shaped paint mist filter paper and a paint mist filter cotton are arranged in the filter box in sequence, and a paint spraying part conveyor belt docking interface is arranged on the first box door and the opposite side wall of the first box door, that is, the workpiece (paint spraying part or photovoltaic module) is continuously transported by the conveyor belt through the paint spraying part conveyor belt docking interface into the spray box of the automatic painting device for reducing exhaust gas emissions of the utility model (especially suitable for flat painting of workpieces), and paint is sprayed to form a part of the continuous equipment of the automatic painting line, and the generated paint mist is filtered and recycled, which greatly reduces the waste emission containing paint mist and avoids the damage of paint mist to the environment and the health of operators. The air is blown downward by filtering and circulating to the nozzle to form downward compressed air, which can improve the bonding strength and uniformity of the paint and greatly improve the quality of the paint.

[0014] 2. Compared with the prior art, the automatic painting device for reducing exhaust gas emissions realizes the function of automatic painting of the frame by movably connecting a guide plate in the spray box, movably connecting a nozzle on the guide plate, and arranging a paint storage tank connected to the nozzle through a delivery pipe in the spray box, thereby eliminating the need for manual painting, which not only improves the uniformity of the painting on the outside of the frame, but also reduces the contact between the operator and the paint, thereby protecting the health of the employees;

[0015] 3. Compared with the prior art, this automatic painting device that reduces exhaust gas emissions filters dust in the air entering the bellows by arranging a dustproof net in the air duct, thereby preventing dust from entering the bellows. When the workpiece is being sprayed with paint, dust adheres to the outside of the workpiece and affects the effect of spraying paint. The dustproof net is movably connected to the air duct through an external threaded ring and a grip block, which makes it easy to disassemble the dustproof net for cleaning and ensure the ventilation of the air duct. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional diagram of the overall structure of an automatic painting device for reducing exhaust gas emissions proposed by the utility model;

[0017] Figure 2 This is a main cross-sectional view of the overall structure of an automatic painting device for reducing exhaust gas emissions proposed by the utility model;

[0018] Figure 3 This is a side view of the overall structure of a guide plate of an automatic painting device for reducing exhaust gas emissions proposed by the utility model;

[0019] Figure 4 The utility model proposes an automatic painting device for reducing exhaust gas emissions Figure 1 A magnified view of the structure at center.

[0020] Legend:

[0021] 1. Spray box; 2. Air duct; 3. Bellows; 4. Filter box; 5. Second box door; 6. First box door; 7. Paint spray conveyor belt docking interface; 8. Controller; 9. Paint mist filter cotton; 10. Leakage plate; 11. V-shaped paint mist filter paper; 12. Silk screen demister; 13. Air outlet; 15. Screen; 16. Paint storage tank; 17. Delivery pipe; 18. Polished rod; 19. Screw; 20. Guide plate; 21. Partition; 22. Through groove; 23. Thin paint mist filter cotton; 25. Centrifugal fan; 26. Connecting pipe; 27. Drive motor; 28. Guide hole; 29. ​​Threaded hole; 30. Electric push rod; 31. Support block; 32. Lifting motor; 33. Drive shaft; 34. Hollow block; 35. Spray head; 36. External thread ring; 37. Dust net; 38. Grip block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Reference Figures 1 to 4The utility model provides an automatic painting device for reducing exhaust gas emissions: comprising a spray box 1, the outer side of the spray box 1 is movably connected to a first box door 6, the first box door 6 and the side wall opposite to the first box door 6 are provided with a spray paint conveyor belt docking port 7, the spray box 1 is provided with a controller 8, the right side of the spray box 1 is connected to a filter box 4, the front side of the filter box 4 is movably connected to a second box door 5, two leak plates 10 equidistantly distributed up and down are suspended and fixed in the filter box 4, and a wire mesh demister is provided on the bottom of the filter box 4 12, the top surfaces of the two leak plates 10 are provided with V-shaped paint mist filter paper 11 and paint mist filter cotton 9 in sequence from bottom to top, the top surface of the filter box 4 is vertically connected to a wind box 3 connected to the spray box 1, and a paint spraying part is provided in the spray box 1, and a screen 15 is provided below the paint spraying part, and the screen 15 is fixed to the bottom of the spray box 1. The screen 15 here can be one or more. After the air is set, the paint mist formed after the painting can be roughly filtered and intercepted, so that the paint mist is formed into small droplets for subsequent discharge, and at the same time, it also greatly reduces The load of the post-filtration such as the V-shaped paint mist filter paper is reduced. The top surface of the wind box 3 is vertically connected to the ventilation pipe 2. The wind box 3 is connected to the spray box 1 through the connection. A partition 21 is suspended and fixed in the spray box 1. The partition 21 is located above the spray paint part. The center of the top surface of the partition 21 passes through a through groove 22. A thin paint mist filter cotton 23 (the paint mist filter cotton with a thickness of less than 0.2 cm) is fixed in the through groove 22. A centrifugal fan 25 concentric with the connecting pipe 26 is fixed on the side of the spray box 1. The centrifugal fan 25 is located at the wind box 3. An air outlet 13 connected to the filter box 4 is horizontally penetrated through the inner wall of the lower end of the spray box 1. A water tank is fixed on the rear side of the wind box 3. A water pump is arranged in the water tank. The output end of the water pump is connected to the water inlet pipe. The water inlet pipe penetrates the water tank and extends into the wind box 3. The end of the water inlet pipe is connected to the spray head. An oblique water guide plate is suspended and fixed in the wind box 3. The spray head is located above the water guide plate. The side of the wind box 3 is horizontally connected to the return pipe. The return pipe is located at the lowest point of the water guide plate. The return pipe is connected to the water tank. The top surface of the water tank is vertically connected to the water inlet pipe.

[0024] A filter box 4 is connected to the side of the spray box 1, and a wire mesh demister 12, a V-shaped paint mist filter paper 11 and a paint mist filter cotton 9 are arranged in the filter box 4 in sequence, and a paint part conveyor belt docking interface is arranged on the first box door and the opposite side wall of the first box door, that is, the workpiece (paint part or photovoltaic module) is continuously transported by the conveyor belt through the paint part conveyor belt docking interface into the spray box of the automatic painting device for reducing exhaust gas emissions of the utility model (especially suitable for flat painting of workpieces), and paint is sprayed to form a part of the continuous equipment of the automatic painting line. The generated paint mist is filtered and recycled, which greatly reduces the waste emission containing paint mist and avoids the paint mist from damaging the environment and the health of operators. The air is blown downward by filtering and circulating to the nozzle to form downward compressed air, which can improve the bonding strength and uniformity of the paint and greatly improve the quality of the paint.

[0025] Reference Figure 2 and Figure 3 In order to achieve the purpose of automatic painting of the frame, the painting parts include a guide plate 20 suspended in the spray box 1, the guide plate 20 is slidably connected in the spray box 1, the front side of the guide plate 20 is telescopically connected to the support block 31, the bottom surface of the support block 31 is lifted and connected to the hollow block 34, the bottom surface of the hollow block 34 is vertically connected to the spray head 35, and a paint storage tank 16 is provided in the spray box 1, and the paint storage tank 16 is connected to the hollow block 34 through a delivery pipe 17, and the delivery pipe 17 is a hose;

[0026] By movably connecting the guide plate 20 in the spray box 1, movably connecting the nozzle 35 on the guide plate 20, and arranging a paint storage tank 16 connected to the nozzle 35 through the delivery pipe 17 in the spray box 1, the function of automatic painting of the frame is realized, and manual painting is not required, which not only improves the uniformity of painting the exterior of the frame, but also reduces the contact between operators and paint, thereby ensuring the health of employees;

[0027] Reference Figure 2 and Figure 3 In order to achieve the purpose of lateral displacement of the nozzle 35, the side of the guide plate 20 horizontally penetrates two guide blocks that are mirror-symmetrical up and down, and each guide hole 28 is axially slidably connected with a polished rod 18, and the polished rod 18 is horizontally fixed in the spray box 1. A threaded hole 29 is horizontally penetrated in the center of the side of the guide plate 20, and a screw rod 19 is threadedly connected in the threaded hole 29. One end of the screw rod 19 is rotatably connected to the inner wall of one side of the spray box 1, and the other end is transmission-connected to a driving motor 27, which is horizontally fixed in the spray box 1. The driving motor 27 drives the screw rod 19 to rotate. Under the action of the threaded hole 29, the polished rod 18 and the guide hole 28, the screw 19 drives the guide plate 20 to perform lateral displacement, thereby achieving lateral displacement of the nozzle 35;

[0028] Reference Figure 2 and Figure 3 In order to adjust the distance between the nozzle 35 and the frame and realize the longitudinal displacement of the nozzle 35, an electric push rod 30 is horizontally fixed on the front side of the guide plate 20, and the end of the electric push rod 30 is fixedly connected to the support block 31. The bottom surface of the support block 31 is vertically fixed with a lifting motor 32. The output end of the lifting motor 32 is connected to the driving shaft 33, and the hollow block 34 is fixed to the end of the driving shaft 33. The electric push rod 30 drives the support block 31 to move longitudinally, so that the support block 31 drives the nozzle 35 to move longitudinally. The nozzle 35 drives the hollow block 34 to move up and down through the lifting motor 32 and the driving shaft 33, thereby driving the nozzle 35 to move up and down, so as to adjust the distance between the nozzle 35 and the workpiece;

[0029] Reference Figure 1 and Figure 4In order to filter the air entering the air duct 2 and clean the filter, an internal thread is provided on the upper opening of the inner wall of the air duct 2, and an external threaded ring 36 is threadedly connected to the upper opening of the air duct 2. A dustproof net 37 is fixed to the inner wall of the external threaded ring 36, and two radially symmetrical grip blocks 38 are fixed to the top surface of the external threaded ring 36. By arranging the dustproof net 37 in the air duct 2, dust in the air entering the bellows 3 is filtered to prevent dust from entering the bellows 3. When the workpiece is being painted, dust adheres to the outside of the workpiece and affects the effect of the painting. The dustproof net 37 is movably connected to the air duct 2 through the external threaded ring 36 and the grip block 38, so that the dustproof net 37 can be easily removed for cleaning to ensure the ventilation of the air duct 2.

[0030] Working principle: When in use, the workpiece (painted workpiece or photovoltaic module) is continuously conveyed by the conveyor belt and enters the interior of the spray box of the automatic spray painting device for reducing exhaust gas emissions through the interface of the paint workpiece conveyor belt. (Particularly suitable for flat painting of workpieces), and then the workpiece is sprayed with paint using the nozzle 35. When spraying paint, the centrifugal fan 25 sends air to the top of the spray box 1 through the connecting pipe 26, and the external air is filtered through the dustproof net 37 and sent to the top of the spray box 1 through the connecting pipe 26. Then, the air in the top of the spray box 1 is blown into the painting area by the thin paint mist filter cotton 23. Under the action of wind, the paint is evenly distributed over a wider area. The paint mist is sprayed on the outside of the workpiece, and the paint mist enters the filter box 4 through the air outlet 13. The paint mist in the filter box 4 rises under the suction of the centrifugal fan 25. The paint mist passes through the wire mesh demister 12, the V-shaped paint mist filter paper 11 and the paint mist filter cotton 9 in turn, and then enters the bellows 3. The clean gas entering the bellows 3 is sprayed by a water pump and wet-filtered. After the filtration is completed, it is mixed with the air filtered by the dustproof net 37, and is sucked into the top of the spray box 1 again through the centrifugal fan 25 for circulation, thereby preventing the paint mist from being directly discharged to the outside and causing an impact on the human body and the environment.

[0031] The utility model forms a part of the continuous equipment of the automatic paint spraying line, and the generated paint mist is filtered and recycled, which greatly reduces the waste discharge containing paint mist and avoids the paint mist from damaging the environment and the health of operators. The air is blown downward by filtering and circulating to the nozzle to form downward pressurized wind, which can improve the bonding strength and uniformity of the paint spray and greatly improve the quality of the paint spraying. After wet filtration, the air humidity increases, which is more suitable for the spraying of water-based paint and can further improve the bonding strength and uniformity of the paint spray.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic painting device for reducing exhaust gas emissions, comprising a spray box (1), the outer side of the spray box (1) being movably connected to a first box door (6), characterized in that: A paint spray conveyor belt docking port (7) is arranged on the first box door (6) and on the side wall opposite to the first box door (6), the spray box (1) is provided with a controller (8), the right side of the spray box (1) is connected to a filter box (4), the front side of the filter box (4) is movably connected to the second box door (5), two leakage plates (10) are suspended and fixed in the filter box (4) and are equidistantly distributed up and down, the bottom surface of the filter box (4) is provided with a wire mesh demister (12), the top surfaces of the two leakage plates (10) are provided with V-shaped paint mist filter paper (11) and paint mist filter cotton (9) in sequence from bottom to top, the top surface of the filter box (4) is vertically connected to a wind box (3) connected to the spray box (1), the spray box (1) is provided with a paint spray part, and a screen (15) is provided below the paint spray part, and the screen (15) is fixed to the bottom of the spray box (1).

2. The automatic painting device for reducing exhaust gas emissions according to claim 1 is characterized in that: The paint spraying part comprises a guide plate (20) suspended in the spray box (1), the guide plate (20) being slidably connected in a transverse manner in the spray box (1), the front side of the guide plate (20) being telescopically connected to a support block (31), the bottom surface of the support block (31) being lifted and connected to a hollow block (34), the bottom surface of the hollow block (34) being vertically connected to a spray head (35), a paint storage tank (16) being provided in the spray box (1), the paint storage tank (16) being connected to the hollow block (34) via a delivery pipe (17), and the delivery pipe (17) being a hose.

3. The automatic painting device for reducing exhaust gas emissions according to claim 2 is characterized in that: The side surface of the guide plate (20) horizontally penetrates two guide blocks that are mirror-symmetrical in upper and lower directions; each guide hole (28) is axially slidably connected to a light rod (18); the light rod (18) is horizontally fixed in the spray box (1); a threaded hole (29) is horizontally penetrated at the center of the side surface of the guide plate (20); a screw rod (19) is threadedly connected to the inner wall of one side of the spray box (1); one end of the screw rod (19) is rotatably connected to an inner wall of one side of the spray box (1); the other end is transmission-connected to a drive motor (27); the drive motor (27) is horizontally fixed in the spray box (1).

4. The automatic painting device for reducing exhaust gas emissions according to claim 2 is characterized in that: An electric push rod (30) is horizontally fixed on the front side of the guide plate (20), the end of the electric push rod (30) is fixedly connected to a support block (31), the bottom surface of the support block (31) is vertically fixed to a lifting motor (32), the output end of the lifting motor (32) is transmission-connected to a drive shaft (33), and the hollow block (34) is fixed to the end of the drive shaft (33).

5. The automatic painting device for reducing exhaust gas emissions according to claim 1, characterized in that: The top surface of the wind box (3) is vertically connected to the air duct (2), and the wind box (3) is connected to the spray box (1) through a connection. A partition (21) is suspended and fixed in the spray box (1), and the partition (21) is located above the spray paint part. The center of the top surface of the partition (21) passes through a through groove (22), and a thin paint mist filter cotton (23) is fixed in the through groove (22). A centrifugal fan (25) concentric with the connecting pipe (26) is fixed on the side of the spray box (1), and the centrifugal fan (25) is located in the wind box (3). The lower end inner wall of the spray box (1) is horizontally penetrated by an air outlet (13) connected to the filter box (4).

6. The automatic painting device for reducing exhaust gas emissions according to claim 5, characterized in that: An internal thread is formed at the upper end of the inner wall of the air duct (2), and an external thread ring (36) is threadedly connected to the upper end of the air duct (2). A dust screen (37) is fixed to the inner wall of the external thread ring (36), and two radially symmetrical gripping blocks (38) are fixed to the top surface of the external thread ring (36).

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