Device and method for spraying and coating film on surface of power distribution cabinet shell

Abstract

The invention discloses a power distribution cabinet shell surface spraying and coating device and method, and relates to the technical field of spraying and coating. The power distribution cabinet shell surface spraying and coating device comprises a shell, a feeding unit used for feeding paint, a conveying unit used for conveying the power distribution cabinet shell to be sprayed and a coating spray gun. A spraying assembly for spraying operation, an adjusting assembly for changing the coating coverage range and a cleaning assembly for improving the spraying effect are arranged in the shell, and the adjusting assembly comprises an adjusting block which is fixed in the coating spray gun and used for changing the spraying direction of the coating, and a folding area is used for assisting in changing the spraying angle of the coating; one end of the air supply pipe is communicated with the interior of the adjusting block, air is supplied to the interior of the adjusting block to change the unfolding angle of the folding area, it is guaranteed that even areas with complex shapes or difficult to touch can obtain uniform and consistent coatings, and all the surfaces, including corners, edges and sunken parts difficult to treat through a traditional method, of workpieces can be better covered.

Description

Technical Field

[0001] The present invention relates to the technical field of spray coating, and in particular to a device and method for spray coating the surface of a power distribution cabinet shell. Background Art

[0002] The surface spray coating of the distribution cabinet shell is usually carried out using special spray equipment, including electrostatic spray equipment. This equipment uses static electricity to charge the paint particles so that they can adhere to the metal surface more evenly, improving spraying efficiency and quality while reducing paint waste.

[0003] When the existing electrostatic spraying equipment is spraying and coating the shell of the power distribution cabinet, there are many gaps and partitions inside the shell of the power distribution cabinet, which leads to excessive accumulation of paint in some areas and insufficient coating in other areas. For example, an electrostatic powder electrostatic spray gun device with a mobile control system disclosed in the announcement number CN210585463U can drive the spray gun itself to move back and forth in a straight line, thereby increasing the coverage of the spray gun. However, when targeting a complex area with a large height difference such as the inside of a power distribution cabinet shell, it is impossible to increase the coverage by only relying on linear movement, and it is impossible to ensure that the coating coverage in each area is almost the same, which is relatively ineffective in reducing the Faraday cage effect. An electrostatic spray device disclosed in the announcement number CN115318519B can adjust the rotation of the nozzle part of the spray gun to improve the uneven coating coverage, but it is still inconvenient to manually hold the spray gun and adjust the nozzle part to change the position of the spray gun. Therefore, a device and method for spray coating on the surface of a power distribution cabinet shell are proposed. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a device and method for spray coating the surface of a power distribution cabinet shell, which solves the problems raised in the background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a device for spraying and coating the surface of a distribution cabinet shell, comprising a shell, a feeding unit for supplying paint, a conveying unit for conveying the distribution cabinet shell to be sprayed, and a coating spray gun. The shell is provided with a spraying component for spraying, an adjustment component for changing the coverage range of the paint, and a cleaning component for improving the spraying effect. The adjustment component includes: an air supply pipe, an adjustment block, a folding area, a sliding rope, a limit plate, a fixed plate, a second spring, a guide column, a movable shaft, a gear lever, and an adjustment plate. The adjustment block is fixed in the coating spray gun to change the spraying direction of the paint. The folding area is installed on the side wall of the adjustment block to assist in changing the spraying angle of the paint. One end of the air supply pipe is connected to the adjustment block to supply air to the adjustment block to change the unfolding angle of the folding area.

[0006] Preferably, one end of the sliding rope is fixed to the inner wall of the adjusting block, the bottom of the limiting plate is fixed to the bottom of the inner wall of the adjusting block, the sliding sleeve is arranged outside the sliding rope to limit the moving direction of the sliding rope, and the side wall of the fixed plate is fixed to the other end of the sliding rope.

[0007] Preferably, one end of spring 2 is fixed to the inner wall of the adjusting block, and the other end is fixed to the side wall of the fixed plate, providing elastic force for resetting the limit plate; one end of the guide column is fixed to the inner wall of the adjusting block, and the other end slides out of the fixed plate to limit the moving direction of the fixed plate; one end of the movable shaft is hinged to the side wall of the coating spray gun through a worm spring; one end of the adjusting plate is fixed to the movable shaft, and the side wall of the gear lever abuts against the side wall of the adjusting plate.

[0008] Preferably, the spraying assembly includes: a mounting plate, a limiting rod, a baffle, an airbag, an air pipe, an air pump, a traction rope, a winding wheel, a rotating rod, a power motor, and a spring. One end of the mounting plate is mounted on the side wall of the coating spray gun; one end of the limiting rod is slidably inserted into the mounting plate, and the other end is slidably inserted into the shell to limit the moving direction of the coating spray gun; the baffle is fixed on the side wall of the limiting rod; the top of the airbag is fixed to the bottom of the mounting plate; one end of the air pipe is connected to the airbag to transport gas into the airbag.

[0009] Preferably, one end of the traction rope is fixed to the top of the limit rod; the side wall of the winding wheel is fixed to the other end of the traction rope, driving the traction rope to change the height of the limit rod; one end of the rotating rod is fixed to the side wall of the winding wheel; the output end of the power motor is connected to the other end of the rotating rod to provide power for changing the height of the limit rod; one end of the spring is fixed in the mounting plate, and the other end is fixed to the limit rod, providing elastic force for resetting the mounting plate.

[0010] Preferably, the cleaning assembly includes: a rotating shaft, a gear, a rack, a fixed rod, a bottom plate, a steel sheet, a spring three, a side plate, a spring four, a front plate, a lower slider, and an upper slider. A gear is fixed to one end of the rotating shaft, and the gear is driven to rotate under the action of an external force; the rack is meshed with the gear; the top of the fixed rod is fixed to the bottom of the rack, and one end is slidably inserted into the coating spray gun; the top of the bottom plate is fixed to one end of the fixed rod, and the side wall is slidably abutted against the inner wall of the coating spray gun; one end of the steel sheet is fixed to the bottom plate.

[0011] Preferably, one end of spring three is fixed in the bottom plate; one end of the side plate is fixed to the other end of spring three, and the other end slides out of the bottom plate; one end of spring four is fixed in the side plate; one end of the front plate is fixed to the other end of spring four, and the other end slides out of the side plate and slides into contact with the coating spray gun.

[0012] Preferably, the top of the upper slider is fixed to the bottom of the adjusting block; the bottom of the lower slider is fixed to the top of the side plate and is slidably fitted with the upper slider.

[0013] The present invention also provides a spraying method applicable to a spray coating device on the surface of a power distribution cabinet housing, comprising the following steps: S1. The housing of the power distribution cabinet to be subjected to electrostatic spray coating operation is transported into the housing through a conveyor unit; S2. Use the console to control the operation of the feeding unit and the spraying assembly to spray and coat the shell of the power distribution cabinet; S3. When spray coating the inside of the power distribution cabinet shell, start the adjustment component to run synchronously to change the angle of the coating spray gun; S4, transporting the distribution cabinet housing that has completed the spray coating operation out of the housing by using a conveyor unit; S5. After running for a period of time, start the cleaning component through the console to clean the coating spray gun.

[0014] Preferably, the time that a single distribution cabinet housing stays at the coating spray gun is between 1 and 2 minutes.

[0015] The present invention provides a device and method for spray coating the surface of a power distribution cabinet housing. Compared with the prior art, it has the following beneficial effects: (1) The device and method for spray coating on the surface of the power distribution cabinet shell utilizes a spray assembly to assist in the spray coating operation, and can complete the spray coating of the inner and outer surfaces without manually replacing or adjusting the position of the workpiece, thereby greatly saving the operation time and improving the production efficiency. At the same time, the distance between the spray gun and the workpiece can be adjusted to ensure that a constant distance is maintained during the entire spraying process, which helps to achieve a more uniform coating thickness and quality. The coating spray gun can penetrate deep into the shell of the power distribution cabinet for spraying operations, and can better cover all surfaces that need to be protected, including those difficult-to-handle corners and edges. This not only improves the appearance quality of the product, but also enhances its corrosion resistance and service life, thereby reducing the Faraday cage effect.

[0016] (2) The device and method for spray coating the surface of the switch cabinet shell can more flexibly adjust the distribution of the paint by changing the left and right flow direction of the sprayed paint and the deflection of the coating spray gun, ensuring that even complex shapes or hard-to-reach areas can obtain a uniform coating. The effect is better for the more complex structures inside the switch cabinet, and can better cover all surfaces of the workpiece, including corners, edges and recessed parts that are difficult to handle with traditional methods, thereby improving the overall protective performance of the switch cabinet shell after spraying. Precisely controlling the angle of the spray gun and the direction of the paint flow helps to reduce unnecessary overspray, maximize the use of every drop of paint, reduce material waste, and also reduce cleaning workload and environmental pollution.

[0017] (3) The device and method for spray coating the surface of the distribution cabinet shell can effectively avoid the problem of coating spray gun clogging caused by paint residue, drying or impurities, ensure uniform atomization of the paint, and thus obtain a smoother and more consistent coating effect. When the inside of the spray gun is clean, the paint can be atomized and sprayed in the best state, and the paint particle size is more uniform and consistent. It is easier to move to the target surface under the action of the electrostatic field, including those areas that are prone to form the Faraday cage effect, directly improving the spraying quality and equipment performance, and indirectly helping to reduce the impact of the Faraday cage effect on the spraying uniformity, which is crucial to achieving efficient and high-quality electrostatic spraying operations.

[0018] Other features and advantages of the present invention will be described in the following description, and part of them will become obvious from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 Another structural diagram of the overall structure of the present invention from another angle; Figure 3 It is a side structural diagram of the housing of the present invention; Figure 4 It is a front cross-sectional view of the housing of the present invention; Figure 5 It is the position structure diagram of the air pump of the present invention; Figure 6 It is a schematic diagram of the exploded state of the mounting plate of the present invention; Figure 7 Another perspective view of the disassembled state of the mounting plate of the present invention; Figure 8 It is a position structure diagram of the fixing rod of the present invention; Fig. 9 The internal structure diagram of the coating spray gun of the present invention; Fig.10 This is a diagram of the internal structure of the adjustment block of the present invention; Fig.11 It is a schematic diagram of the position of the upper slider of the present invention; Fig.12 It is a schematic diagram of the assembly state of the mounting plate of the present invention; Fig.13 For the present invention Figure 4 A is an enlarged view of the middle figure; Fig.14 It is a schematic diagram of the assembled state of the side panels of the present invention; Fig.15 It is a schematic diagram of the exploded state of the side panel of the present invention.

[0020] In the figure: 1. shell; 11. feeding unit; 12. conveying unit; 13. coating spray gun; 2. mounting plate; 21. limiting rod; 22. baffle; 23. air bag; 24. air pipe; 25. air pump; 26. traction rope; 27. winding wheel; 28. rotating rod; 29. ​​power motor; 201. spring one; 3. air supply pipe; 31. adjustment block; 32. folding area; 33. sliding rope; 34. limiting plate; 35. fixing plate; 36. spring two; 37. guide column; 38. movable shaft; 39. gear lever; 310. adjustment plate; 4. rotating shaft; 41. gear; 42. rack; 43. fixing rod; 44. bottom plate; 45. steel sheet; 46. spring three; 47. side plate; 48. spring four; 49. front plate; 410. lower slider; 411. upper slider. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] In the embodiments of the present application, the devices or elements referred to or implied must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise precisely and specifically specified.

[0023] See also Figures 1 to 7 , the present invention provides the following technical solutions: Embodiment 1: A device for spraying and coating the surface of a power distribution cabinet shell, comprising a shell 1, a feeding unit 11 for supplying paint, a conveying unit 12 for conveying the shell of the power distribution cabinet to be sprayed, and a coating spray gun 13. A spraying assembly for spraying is arranged in the shell 1, and the spraying assembly includes: a mounting plate 2, a limit rod 21, a baffle 22, an air bag 23, an air pipe 24, an air pump 25, a traction rope 26, a winding wheel 27, a rotating rod 28, a power motor 29, and a spring 201; One end of the mounting plate 2 is fixedly mounted on the side wall of the coating spray gun 13, one end of the limit rod 21 is slidably penetrated in the mounting plate 2, the other end of the limit rod 21 is slidably penetrated in the housing 1, the limit rod 21 is used to limit the moving direction of the coating spray gun 13, one end of the baffle 22 is fixedly mounted on the side wall of the limit rod 21, the top of the air bag 23 is fixedly mounted on the bottom of the mounting plate 2, the side wall of the air bag 23 is slidably abutted against the side wall of the baffle 22, one end of the air supply pipe 24 is fixedly connected to the air bag 23, the other end of the air supply pipe 24 is fixedly connected to the air pump 25, and the air supply pipe 24 is used to transport gas into the air bag 23; The side wall of the air pump 25 is fixedly mounted on the top of the shell 1 through a fixed box, one end of the traction rope 26 is fixedly mounted on the top of the limit rod 21, and the side wall of the winding wheel 27 is fixedly connected to the other end of the traction rope 26. The winding wheel 27 drives the traction rope 26 to wind up the winding wheel 27 under the action of external force, thereby changing the height of the limit rod 21. One end of the rotating rod 28 is fixedly mounted on the side wall of the winding wheel 27, and the output end of the power motor 29 is fixedly connected to the other end of the rotating rod 28 through a coupling. The power motor 29 is used to provide power for changing the height of the limit rod 21. One end of the spring 201 is fixedly mounted in the mounting plate 2, and the other end of the spring 201 is fixedly mounted on the limit rod 21. The spring 201 is used to provide elastic force for resetting the mounting plate 2.

[0024] When in use, the switch cabinet housing to be electrostatically sprayed and coated is transported to the housing 1 by the conveyor unit 12, and then the control console controls the feeding unit 11 to feed the coating spray gun 13, and the coating spray gun 13 charges the atomized paint particles, so that the paint particles can be attracted to the surface of the switch cabinet housing under the action of the electrostatic field, thereby completing the spray coating operation; The coating spray gun 13 is supported by the mounting plate 2, and the limiting rod 21 is slidably matched with the mounting plate 2, and the limiting rod 21 is slidably matched with the housing 1, so that the mounting plate 2 can move linearly along the limiting rod 21 under the action of external force, and the mounting plate 2 is provided with elastic force by the spring 1 201, so that when the mounting plate 2 loses the external force, it can be reset to the initial position under the action of the spring 1 201; When the housing of the power distribution cabinet moves to the coating spray gun 13 under the drive of the conveyor unit 12 to prepare for the spray coating operation, when spraying the three outer sides of the housing of the power distribution cabinet, it is only necessary to rotate the housing of the power distribution cabinet so that the side to be sprayed faces the coating spray gun 13, and then control the power motor 29 to start through the control console, and the power motor 29 drives the rotating rod 28 to rotate, the rotating rod 28 drives the winding wheel 27 to rotate, the winding wheel 27 drives the traction rope 26 to move, the traction rope 26 drives the limit rod 21 to move, and the limit rod 21 drives the coating spray gun 13 to move up and down, and the spray coating is completed; When spraying the three inner sides of the distribution cabinet shell, while the power motor 29 drives the coating spray gun 13 to move up and down, the air pump 25 is started by controlling the control console. The air pump 25 delivers gas to the air bag 23 through the air pipe 24, causing the air bag 23 to expand. The air bag 23 is limited by the baffle 22 to limit the expansion direction of the air bag 23. The expanded air bag 23 is used to squeeze the mounting plate 2, so that the mounting plate 2 drives the coating spray gun 13 to extend into the distribution cabinet shell, thereby spraying and coating the three inner walls of the distribution cabinet shell.

[0025] See also Figures 8 to 12 , the present invention provides the following technical solutions: Embodiment 2, the technical solution of this embodiment is different from that of embodiment 1, including: an adjustment component for changing the coating coverage is arranged in the housing 1, and the adjustment component includes: an air supply pipe 3, an adjustment block 31, a folding area 32, a sliding rope 33, a limit plate 34, a fixing plate 35, a second spring 36, a guide column 37, a movable shaft 38, a gear lever 39, and an adjustment plate 310; One end of the air supply pipe 3 is fixedly connected to the adjusting block 31, and the air supply pipe 3 is used to supply air to the adjusting block 31 to change the unfolding angle of the folding area 32. The side wall of the adjusting block 31 is fixedly installed on the inner wall of the coating spray gun 13. The adjusting block 31 is used to change the spraying direction of the paint. The folding area 32 is movably installed on the side wall of the adjusting block 31. The folding area 32 is used to assist in changing the spraying angle of the paint. One end of the sliding rope 33 is fixedly installed on the inner wall of the adjusting block 31. The bottom of the limiting plate 34 is fixed to the bottom of the inner wall of the adjusting block 31. The other end of the sliding rope 33 is slidably inserted outside the limiting plate 34. The limiting plate 34 is used to limit the moving direction of the sliding rope 33. The side wall of the fixed plate 35 is fixedly installed on the other end of the sliding rope 33. One end of spring 2 36 is fixedly mounted on the inner wall of the adjusting block 31, and the other end of spring 2 36 is fixedly mounted on the side wall of the fixing plate 35. Spring 2 36 is used to provide elastic force for returning the fixing plate 35. One end of the guide column 37 is fixedly mounted on the inner wall of the adjusting block 31, and the other end of the guide column 37 slides out of the fixing plate 35. The guide column 37 is used to limit the moving direction of the fixing plate 35. One end of the movable shaft 38 is hinged to the side wall of the coating spray gun 13 through a worm spring. One end of the adjusting plate 310 is fixedly mounted on the movable shaft 38, and the side wall of the shift lever 39 slides against the side wall of the adjusting plate 310.

[0026] When in use, when the coating spray gun 13 is spraying coating on the three sides of the inner shell of the power distribution cabinet, a gas supply element is controlled by the control console to supply gas to the regulating block 31 through the gas supply pipe 3. As the gas continues to enter, the folding areas 32 on both sides of the regulating block 31 are expanded to the side away from the regulating block 31, so that the paint sprayed from the coating spray gun 13 is divided into two main streams under the action of the two expanded side walls of the regulating block 31, and then flows to the left and right side walls inside the shell of the power distribution cabinet. Through the continuous expansion of the folding area 32, the two main streams of paint further perform fine spraying on the left and right side walls inside the shell of the power distribution cabinet, further reducing the Faraday cage effect; After the spray coating operation on the three sides of the inside of the power distribution cabinet is completed, the air supply component is controlled to stop operating, and the solenoid valve installed on the regulating block 31 is started to make the air in the regulating block 31 flow out. After the air flows out, the spring 2 36 provides elastic force to the fixed plate 35 away from the side where the limit plate 34 is located. At the same time, the fixed plate 35 and the guide column 37 are slidably matched, so that the fixed plate 35 can slide linearly along the guide column 37 away from the side where the limit plate 34 is located under the action of the spring 2 36, and the sliding rope 33 is driven to move by the fixed plate 35. The sliding rope 33 and the limit plate 34 are slidably matched, so that the sliding rope 33 can drive the folding areas 32 on both sides of the regulating block 31 to be retracted into the inside of the regulating block 31 under the limit of the limit plate 34; While the air supply pipe 3 supplies air to the regulating block 31, the airflow is transported to the top of the regulating plate 310 through a branch. The regulating plate 310 is blown by the airflow so that the regulating plate 310 can deflect with the movable shaft 38 as the axis, so that the regulating plate 310 drives the movable shaft 38 to deflect synchronously with itself, and the movable shaft 38 synchronously drives the coating spray gun 13 to deflect with the movable shaft 38 as the axis. After the airflow is lost, the movable shaft 38 is reset to the initial position under the action of the volute spring, and the reset degree of the movable shaft 38 is limited by the gear lever 39, and the flow rate of the airflow outflowing through the branch is adjusted, so that the deflection angle and frequency of the coating spray gun 13 are controlled, and while the coating spray gun 13 rotates with the movable shaft 38 as the axis, the folding area 32 of the regulating block 31 can be expanded outward, so as to further improve the spray coating effect on the inside of the distribution cabinet shell.

[0027] See also Fig.11 , Figures 13 to 15 , the present invention provides the following technical solutions: Embodiment 3, the technical solution of this embodiment is different from that of embodiment 2 in that: a cleaning assembly for improving the spraying effect is arranged in the housing 1, and the cleaning assembly includes: a rotating shaft 4, a gear 41, a rack 42, a fixing rod 43, a bottom plate 44, a steel sheet 45, a spring three 46, a side plate 47, a spring four 48, a front plate 49, a lower slider 410, and an upper slider 411; One end of the rotating shaft 4 is fixedly mounted on the side wall of the gear 41. The rotating shaft 4 is used to drive the gear 41 to rotate under the action of external force. The rack 42 is meshed with the gear 41. The top of the fixed rod 43 is fixedly mounted on the bottom of the rack 42. The other end of the fixed rod 43 is slidably inserted into the coating spray gun 13. The top of the bottom plate 44 is fixedly connected to one end of the fixed rod 43. The side wall of the bottom plate 44 is slidably abutted against the inner wall of the coating spray gun 13. One end of the steel sheet 45 is fixedly mounted on the bottom plate 44, and the other end of the steel sheet 45 slides against the side wall of the side plate 47. The steel sheet 45 is made of elastic material and is used to isolate the paint from entering the bottom plate 44. One end of the spring three 46 is fixedly mounted in the bottom plate 44, one end of the side plate 47 is fixedly connected to the other end of the spring three 46, and the other end of the side plate 47 slides out of the bottom plate 44. One end of the spring four 48 is slidably mounted in the side plate 47. One end of the front plate 49 is fixedly connected to the other end of the spring four 48, and the other end of the front plate 49 slides out of the side plate 47. One end of the front plate 49 slides against the coating spray gun 13. The top of the upper slider 411 is fixedly mounted on the bottom of the adjusting block 31, and the bottom of the lower slider 410 is fixedly mounted on the top of the side plate 47. The lower slider 410 and the upper slider 411 are slidably adapted.

[0028] When in use, after one or more shifts of spraying operations, when it is necessary to clean and maintain the coating spray gun 13, the pneumatic element in the feeding unit 11 is started to supply air to the coating spray gun 13, and at the same time, the power element is started to drive the rotating shaft 4 to rotate, the rotating shaft 4 drives the gear 41 to rotate, the gear 41 drives the rack 42 to move, the rack 42 drives the fixed rod 43 to move, and the fixed rod 43 drives the bottom plate 44 to move, so that the bottom plate 44 moves upward, and the bottom plate 44 drives the side plate 47 and the front plate 49 to move upward synchronously, so that the side plate 47 and the front plate 49 scrape off the coating adhered and residual on the inner side wall of the coating spray gun 13, and at the same time, the coating flows out from the inside of the coating spray gun 13 through airflow, so as to avoid the coating remaining in the coating spray gun 13 affecting the subsequent spraying; During the upward movement of the bottom plate 44, spring three 46 and spring four 48 are used to provide elastic force to the side plate 47 and the front plate 49 respectively, so that the side plate 47 and the front plate 49 can be extended and retracted in the bottom plate 44, so that the bottom plate 44 is moved to the adjustment block 31, and the lower slider 410 is slidably cooperated with the upper slider 411 and the lower slider 410 to drive the side plate 47 to separate, so that the side plate 47 can also scrape and clean the side wall of the adjustment block 31, and the front plate 49 can scrape and clean the inner wall of the discharge port of the coating spray gun 13, so that during the spray coating operation, the spraying direction of the paint will not be affected by the presence of the previous paint residue.

[0029] The embodiment of the present invention further provides a method for spraying a coating device on the surface of a power distribution cabinet housing, comprising the following steps: S1, conveying the housing of the power distribution cabinet to be subjected to electrostatic spray coating operation into the housing 1 through the conveying unit 12; S2, using the console to control the feeder unit 11 and the spraying assembly to operate, and spray coating the housing of the power distribution cabinet; S3, when spray coating is performed on the inside of the power distribution cabinet housing, the adjustment component is started to operate synchronously to change the angle at which the coating spray gun 13 sprays the coating; S4, transporting the distribution cabinet housing that has completed the spray coating operation out of the housing 1 by using the conveyor unit 12; S5. After running for a period of time, the cleaning component is started through the control console to clean the coating spray gun 13.

[0030] The time that a single distribution cabinet housing stays at the coating spray gun 13 is between 1 and 2 minutes.

[0031] In summary, the technical solutions disclosed in the above embodiments of the present invention have at least the following advantages: The spray coating operation is assisted by the spraying assembly, and the spraying work on the inner and outer surfaces can be completed.

[0032] There is no need to manually change or adjust the position of the workpiece, which greatly saves operation time and improves production efficiency.

[0033] At the same time, the distance between the spray gun and the workpiece can be adjusted to ensure a constant distance throughout the spraying process, which helps to achieve a more uniform coating thickness and quality.

[0034] The coating spray gun 13 can be made to penetrate deep into the shell of the power distribution cabinet for spraying, so as to better cover all surfaces that need to be protected, including those corners and edges that are difficult to handle. This not only improves the appearance quality of the product, but also enhances its corrosion resistance and service life, thereby reducing the Faraday cage effect.

[0035] By changing the left and right flow direction of the sprayed paint and the deflection of the coating spray gun 13, the distribution of the paint can be adjusted more flexibly to ensure that even complex shapes or hard-to-reach areas can obtain a uniform and consistent coating, which is more effective for more complex structures inside the distribution cabinet.

[0036] It can better cover all surfaces of the workpiece, including corners, edges and recessed parts that are difficult to handle with traditional methods, thereby improving the overall protective performance of the distribution cabinet housing after spraying.

[0037] Precisely controlling the angle of the spray gun and the direction of paint flow helps reduce unnecessary overspray, maximizes the use of every drop of paint, reduces material waste, and also reduces cleanup workload and environmental pollution.

[0038] The problem of clogging of the coating spray gun 13 due to paint residue, drying or impurities can be effectively avoided, and the paint can be evenly atomized, thereby obtaining a smoother and more consistent coating effect.

[0039] When the inside of the spray gun is clean, the paint can be atomized and sprayed in an optimal state. The paint particle size is more uniform and more easily moved to the target surface under the action of the electrostatic field, including those areas that are prone to forming a Faraday cage effect.

[0040] It can directly improve the spraying quality and equipment performance, and indirectly help reduce the impact of the Faraday cage effect on spraying uniformity, which is crucial to achieving efficient and high-quality electrostatic spraying operations.

[0041] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0043] Parallel: The parallelism defined in this application is not limited to absolute parallelism. This definition of parallelism can be understood as basic parallelism, which allows for non-absolute parallelism due to factors such as assembly tolerance, design tolerance, and the influence of structural flatness. Small angular errors are allowed. For example, an assembly error range of less than 10 degrees can be understood as a parallel relationship.

[0044] Vertical: The verticality defined in this application is not limited to an absolute vertical intersection relationship (angle of 90 degrees). It allows for non-absolute vertical intersection relationships caused by factors such as assembly tolerance, design tolerance, and influence of structural flatness. It also allows for errors in a small angle range. For example, the assembly error range of 80 to 100 degrees can be understood as a vertical relationship.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for spray coating the surface of a switch cabinet housing, comprising a housing (1), a feeding unit (11) for supplying paint, a conveying unit (12) for conveying the switch cabinet housing to be sprayed, and a coating spray gun (13), characterized in that: The housing (1) is provided with a spraying component for performing a spraying operation, an adjustment component for changing the coating coverage, and a cleaning component for improving the spraying effect. The adjustment component comprises: An adjusting block (31) is fixed in the coating spray gun (13) to change the spraying direction of the coating; A folding area (32) is mounted on the side wall of the adjusting block (31) to assist in changing the spraying angle of the coating; One end of the air supply pipe (3) is connected to the adjusting block (31) and supplies air to the adjusting block (31) to change the unfolding angle of the folding area (32).

2. The surface spray coating device for a power distribution cabinet shell according to claim 1 is characterized in that: The adjustment component also includes: A sliding rope (33), one end of which is fixed to the inner wall of the adjusting block (31); A limit plate (34) having a bottom fixed to the bottom of the inner wall of the adjustment block (31) and a sliding sleeve arranged outside the sliding rope (33) to limit the moving direction of the sliding rope (33); The fixed plate (35) has a side wall fixed on the other end of the sliding rope (33).

3. The surface spray coating device for a power distribution cabinet shell according to claim 2 is characterized in that: The adjustment component also includes: A second spring (36), one end of which is fixed to the side wall of the adjusting block (31) and the other end of which is fixed to the side wall of the fixing plate (35), so as to provide a resetting elastic force to the fixing plate (35); A guide column (37), one end of which is fixed to the inner wall of the adjustment block (31), and the other end of which slides out of the fixing plate (35) to limit the moving direction of the fixing plate (35); A movable shaft (38), one end of which is hinged to the side wall of the coating spray gun (13) through a spiral spring; The adjusting plate (310) has one end fixed on the movable shaft (38) The side wall of the shift rod (39) abuts against the side wall of the adjustment plate (310).

4. The surface spray coating device for a power distribution cabinet shell according to claim 1 is characterized in that: The spraying assembly includes: A mounting plate (2), one end of which is mounted on a side wall of the coating spray gun (13); A limit rod (21), one end of which is slidably disposed in the mounting plate (2) and the other end of which is slidably disposed in the housing (1), so as to limit the moving direction of the coating spray gun (13); A baffle (22) is fixed on the side wall of the limiting rod (21); An air bag (23), the top of which is fixed to the bottom of the mounting plate (2); One end of the gas delivery pipe (24) is connected to the air bag (23) to deliver gas into the air bag (23).

5. The surface spray coating device for a power distribution cabinet shell according to claim 4 is characterized in that: The spraying assembly also includes: A traction rope (26), one end of which is fixed to the top of the limiting rod (21); A winding wheel (27) has a side wall fixed to the other end of the traction rope (26) and drives the traction rope (26) to change the height of the limit rod (21); A rotating rod (28), one end of which is fixed to the side wall of the winding wheel (27); A power motor (29), the output end of which is connected to the other end of the rotating rod (28), and provides power for changing the height of the limiting rod (21); Spring 1 (201) has one end fixed in the mounting plate (2) and the other end fixed on the limit rod (21), and provides elastic force for resetting the mounting plate (2).

6. The surface spray coating device for a power distribution cabinet shell according to claim 1, characterized in that: The cleaning component includes: A rotating shaft (4) having a gear (41) fixed at one end, and the gear (41) is driven to rotate under the action of an external force; A rack (42) meshing with the gear (41); A fixed rod (43), the top of which is fixed to the bottom of the rack (42), and one end of which is slidably inserted into the coating spray gun (13); A bottom plate (44) having a top fixed to one end of a fixing rod (43) and a side wall slidably abutting against an inner wall of a coating spray gun (13); One end of the steel sheet (45) is fixed on the bottom plate (44).

7. The device for spray coating the surface of a power distribution cabinet shell according to claim 6, characterized in that: The cleaning component also includes: A spring three (46), one end of which is fixed in the bottom plate (44); A side plate (47), one end of which is fixed to the other end of the spring three (46), and the other end of which slides out from the bottom plate (44); A spring four (48), one end of which is fixed in the side plate (47); The front plate (49) has one end fixed to the other end of the spring four (48), and the other end slidingly passes through the side plate (47) and slides into contact with the coating spray gun (13).

8. The device for spray coating the surface of a power distribution cabinet shell according to claim 7, characterized in that: The cleaning component also includes: An upper slider (411), the top of which is fixed to the bottom of the adjusting block (31); The bottom of the lower slider (410) is fixed to the top of the side plate (47) and is slidably matched with the upper slider (411).

9. A spray coating method for a surface spray coating device for a power distribution cabinet shell according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1, conveying the housing of the power distribution cabinet to be subjected to electrostatic spray coating operation into the housing (1) through a conveying unit (12); S2, using the control console to control the feeding unit (11) and the spraying assembly to spray and coat the housing of the power distribution cabinet; S3, when spray coating the inside of the power distribution cabinet housing, start the adjustment component to operate synchronously to change the angle at which the coating spray gun (13) sprays the coating; S4, transporting the distribution cabinet housing that has completed the spray coating operation out of the housing (1) using a conveyor unit (12); S5. After running for a period of time, the cleaning component is started through the control console to clean the coating spray gun (13).

10. The spraying method of the surface spray coating device of the power distribution cabinet shell according to claim 9, characterized in that: The time that a single distribution cabinet housing stays at the coating spray gun (13) is between 1 and 2 minutes.

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