A tricycle parts paint spraying and drying integrated device

Abstract

The utility model relates to tricycle parts processing technical field discloses a tricycle parts paint spraying and drying integration device, including the spray booth, the inner wall fixed connection of spray booth has the baffle, the baffle divides spray booth left and right sides into spray chamber and drying chamber, the inside left side of spray booth is provided with the spray module, the inside right side of spray booth is provided with drying module, this device replaces the pipe, and the quick butt joint of filter pipeline is realized with cooperation first flange disc and second flange disc, and the first filter screen, second filter screen and third filter screen are connected in the replacement pipe, and the filter screen is fixed through the cooperation of the first clamping groove, second clamping groove and clamping block, three layers of filter screen can intercept the particle impurity of different particle sizes in the paint mist in layers, greatly improve the paint mist filtering efficiency, avoid the fine paint mist particle with airflow into drying chamber and adhere to the surface of the heating wire and form the paint dirt, reduce the downtime and maintenance cost caused by cleaning the heating wire.

Description

Technical Field

[0001] This utility model relates to the field of tricycle parts processing technology, and more specifically, it relates to an integrated device for painting and drying tricycle parts. Background Technology

[0002] Three-wheeled vehicle parts processing refers to the production process of metal or non-metal structural components such as the frame, cargo box, wheel hubs, and brackets of three-wheeled vehicles. After basic processes such as cutting, welding, stamping, and grinding, further processing steps such as surface treatment and assembly are carried out. Its core objective is to ensure the structural strength, weather resistance, and appearance consistency of the parts to meet the needs of three-wheeled vehicle assembly and long-term use. In the three-wheeled vehicle parts processing process, painting and drying are key surface treatment processes. The painting process requires uniformly spraying anti-rust paint, topcoat, and other coatings on the surface of the parts to improve their rust resistance and appearance. The drying process requires heating and curing the sprayed coating to ensure that the coating is tightly bonded to the surface of the parts and to prevent the coating from peeling off or wrinkling. With the increasing demand for efficiency in three-wheeled vehicle parts processing, integrated devices that can simultaneously achieve painting and drying functions are gradually replacing traditional separate painting and drying equipment and becoming the mainstream equipment type in the industry.

[0003] Existing integrated paint spraying and drying equipment mostly uses a single-layer fixed filter screen as the paint mist filtration component, and the filter screen is bolted to the filtration chamber. Due to the large amount of paint mist generated during the painting process of tricycle parts (especially when spraying dark topcoat, the paint mist concentration is even higher), the filtration area of ​​a single-layer filter screen is limited and cannot fully intercept particulate impurities in the paint mist. Some fine paint mist particles will enter the drying mechanism with the airflow and adhere to the surface of the drying heating tube to form paint scale. After long-term accumulation, it will affect the heat conduction efficiency of the heating tube, causing the drying temperature to drop by 5-8℃. Frequent shutdowns are required to clean the heating tube, increasing maintenance costs and downtime. At the same time, the filter screen is bolted to the connection, and the bolts must be removed one by one for replacement, which is cumbersome and takes 8-12 minutes for a single replacement. During the disassembly process, the edges of the filter screen are easily damaged. If the resulting filter screen debris falls into the paint spraying chamber, it will also adhere to the coating surface of the parts, causing product quality defects. Utility Model Content

[0004] (a) Technical problems to be solved In view of the above situation and to overcome the defects of the prior art, this utility model provides an integrated device for spraying and drying three-wheeled vehicle parts, which aims to solve the problems in the background art.

[0005] (II) Technical Solution To achieve the above objectives, this application provides the following technical solution: an integrated painting and drying device for tricycle parts, comprising a painting box, wherein an isolation plate is fixedly connected to the inner wall of the painting box, the isolation plate dividing the left and right sides of the painting box into a painting chamber and a drying chamber, a painting module is arranged on the left side inside the painting box, a drying module is arranged on the right side inside the painting box, a fixing plate is fixedly connected to the upper surface of the painting box, a fan housing is fixedly connected to the left side of the fixing plate, a filter pipe is fixedly connected to the left end of the fan housing, and an exhaust pipe, a discharge pipe and an air outlet pipe are fixedly connected to the outer surface of the filter pipe respectively. A first fan and a second fan are fixedly connected to the inner wall of the casing and the inner wall of the outlet pipe, respectively. A first solenoid valve and a second solenoid valve are fixedly connected to the outer surface of the filter pipe and the outer surface of the outlet pipe, respectively. A gas nozzle is fixedly connected to the end of the filter pipe away from the fan casing. A replacement pipe is provided in the middle of the filter pipe. Two first flanges and two second flanges, which are fixedly connected by bolts, are fixedly connected to the outer surface of the middle interface of the filter pipe and the outer surfaces of both ends of the replacement pipe, respectively. Three disassembly ports are opened on the outer surface of the replacement pipe, and three first snap-fit ​​grooves are opened on the inner wall of the replacement pipe corresponding to the three disassembly ports. Each of the three disassembly ports has an arc-shaped disassembly plate inside, and each arc-shaped disassembly plate has a second locking groove on its inner wall. The replacement tube has a first filter, a second filter, and a third filter corresponding to the three disassembly ports inside. Two locking blocks are fixedly connected to the outer surfaces of the first, second, and third filters. Three self-locking blocks are fixedly connected to the top and bottom of the replacement tube corresponding to the arc-shaped disassembly plates. Two assembly plates are fixedly connected to the top of the outer surface of each arc-shaped disassembly plate at a position corresponding to the self-locking blocks. Each assembly plate is located away from the arc-shaped disassembly port. Each self-locking block has a self-locking plate hinged to its outer surface at one end. Each self-locking plate has a self-locking groove on both sides. Each self-locking block has two reset grooves on its inner sidewall corresponding to the self-locking groove. Each reset groove has a self-locking plug slidably connected inside. Each reset groove has two reset springs fixedly connected to its inner wall and one side of the self-locking plug. Each self-locking plug has a pull rod fixedly connected to its side inside the reset groove. Each pull rod has a tension plate fixedly connected to its end away from the self-locking block. Each self-locking block has two positioning grooves on its upper surface. Each positioning groove has a positioning plate engaged inside.

[0006] The present invention is further configured such that the bottom end of the exhaust pipe and the bottom end of the discharge pipe respectively penetrate into the drying chamber and the spraying chamber of the spraying box; the first solenoid valve is located in the middle of the discharge pipe and the air outlet pipe; the second solenoid valve is located at the bottom of the second fan; the end of the filter pipe away from the fan housing penetrates into the spraying chamber of the spraying box; both ends of the replacement pipe are in contact with the middle end of the filter pipe that is close to each other; the replacement pipe is located in the middle of the air outlet pipe and the discharge pipe; the interior of each first snap-fit ​​groove and the interior of each second snap-fit ​​groove are snapped with the corresponding snap-fit ​​block; the top of each self-locking block is snapped with the outer surface of the self-locking plate; each self-locking plug is trapezoidal in shape; the outer surface of each self-locking plug is snapped with the interior of the self-locking groove; each pull rod is located above the middle of the two return springs; the end of each pull rod away from the self-locking plug penetrates to the outside of the self-locking block; and the outer surface of each positioning plate is fixedly connected to the outer surface of the self-locking plate.

[0007] The present invention is further configured such that the spraying module includes a paint tank fixedly connected to the left side of the spraying box, a diaphragm pump fixedly connected to the upper surface of the paint tank, the input end of the diaphragm pump penetrating into the interior of the spraying box, the output end of the diaphragm pump fixedly connected to a discharge pipe, a spray pipe fixedly connected to the upper part of the inner wall of the spraying box and the upper part of the left side of the isolation plate, the end of the discharge pipe away from the diaphragm pump penetrating into the interior of the spraying box and fixedly connected to the left end of the spray pipe, a plurality of nozzles fixedly connected to the bottom surface of the spray pipe, a plurality of parts placement rods fixedly connected to the bottom of the inner wall of the spraying box and the bottom of the left side of the isolation plate, an air extraction shell fixedly connected to the left side of the isolation plate, and the bottom end of the discharge pipe fixedly connected to the upper surface of the air extraction shell.

[0008] The present invention is further configured such that a scale plate is fixedly connected to the inner wall of the left side of the paint tank, and a filling pipe is fixedly connected to the upper surface of the paint tank.

[0009] The present invention is further configured such that the drying module includes a heat insulation plate fixedly connected to the inner wall of the spray box and located inside the drying chamber, an electric heating wire fixedly connected to the left side of the heat insulation plate, and multiple airflow circulation holes opened on the front and rear sides of the left side of the heat insulation plate. An airflow dispersion plate is fixedly connected to the inner wall of the spray box and located inside the spray chamber, and the left side of the air extraction shell is fixedly connected to the right side of the airflow dispersion plate.

[0010] The present invention is further configured such that two protective doors are movably hinged to the front of the spray box, and four pads are fixedly connected to the bottom of the spray box.

[0011] (III) Beneficial Effects Compared with the prior art, the beneficial effects of this utility model are: 1. By setting a replacement pipe with three disassembly ports in the middle of the filter pipe, and cooperating with the first flange and the second flange, the replacement pipe and the filter pipe can be quickly connected. The first filter screen, the second filter screen and the third filter screen are snapped into the replacement pipe. The filter screens are fixed by snap-fit ​​blocks and first snap-fit ​​grooves and second snap-fit ​​grooves. The three-layer filter screen can intercept particulate impurities of different sizes in the paint mist in layers, which can significantly improve the paint mist filtration efficiency and prevent fine paint mist particles from entering the drying chamber with the airflow and adhering to the surface of the heating wire to form paint scale. This prevents the heat conduction efficiency of the heating wire from decreasing and reduces downtime and maintenance costs caused by cleaning the heating wire. At the same time, the arc-shaped disassembly plate can be quickly disassembled and assembled by the cooperation of the self-locking block, self-locking plate, self-locking plug and return spring. There is no need to remove the bolts one by one, which shortens the filter screen replacement time and prevents the filter screen edge from breaking and producing debris that falls into the spraying chamber when removing the bolts, thus preventing quality defects on the surface of the coating of parts. 2. The self-locking plug is pushed into the self-locking groove of the self-locking plate by the reset spring inside the self-locking block. The positioning plate and the positioning groove are engaged to achieve a stable fixation of the arc-shaped disassembly plate. This ensures that the filter screen will not be displaced due to airflow impact during the filtration process, thus ensuring stable filtration effect. When replacing the filter screen, simply pull the pull plate to drive the pull rod to disengage the self-locking plug from the self-locking groove, and the arc-shaped disassembly plate can be opened to remove the old filter screen and replace it with a new one. The operation is convenient and efficient, further improving the filter screen replacement efficiency and avoiding the impact of cumbersome filter screen replacement on the overall paint drying operation progress. At the same time, the independent setting of the three-layer filter screen allows for the replacement of a single layer of filter screen according to the paint mist filtration needs, reducing filter screen replacement costs and avoiding the waste of resources caused by replacing a single layer of filter screen as a whole. Attached Figure Description

[0012] Figure 1 This is a three-dimensional overall structural diagram of the present invention; Figure 2 This is a three-dimensional sectional view of the fan housing of this utility model; Figure 3 This is a three-dimensional sectional view of the spray box of this utility model; Figure 4 This is a three-dimensional enlarged structural diagram of the disassembly port of this utility model; Figure 5 This is a three-dimensional structural diagram of the first card slot of this utility model; Figure 6 This is a three-dimensional structural diagram of the self-locking groove of this utility model; Figure 7 This is a three-dimensional structural diagram of the arc-shaped disassembly plate of this utility model; Figure 8 This is a three-dimensional structural diagram of the self-locking block of this utility model.

[0013] In the diagram: 1. Spraying box; 2. Foot pad; 3. Protective door; 4. Discharge pipe; 5. Exhaust pipe; 6. Fixing plate; 7. Fan housing; 8. First solenoid valve; 9. Replacement pipe; 10. Second solenoid valve; 11. Air outlet pipe; 12. Filter pipe; 13. Discharge pipe; 14. Diaphragm pump; 15. Injection pipe; 16. Scale plate; 17. Paint tank; 18. Parts placement rod; 19. Isolation plate; 20. Air circulation hole; 21. First fan; 22. Second fan; 23. Arc-shaped disassembly plate; 24. Heating wire; 25. Heat insulation plate; 26. Exhaust fan. 27. Shell; 28. Airflow dispersion plate; 29. ​​Nozzle; 30. Nozzle pipe; 31. Gas nozzle; 32. First flange; 33. Second flange; 34. Self-locking block; 35. Self-locking plug; 36. First filter screen; 37. Second filter screen; 38. Third filter screen; 39. Snap-fit ​​block; 40. Disassembly port; 41. Pull plate; 42. First snap-fit ​​groove; 43. Assembly plate; 44. Self-locking plate; 45. Self-locking groove; 46. Positioning plate; 47. Second snap-fit ​​groove; 48. Pull rod; 49. Return spring; 50. Return groove. Detailed Implementation

[0014] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0015] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0016] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0017] Please see Figures 1-8The system includes a spray box 1, with an isolation plate 19 fixedly connected to the inner wall of the spray box 1. The isolation plate 19 divides the left and right sides of the spray box 1 into a spraying chamber and a drying chamber. A spraying module is installed on the left side of the inside of the spray box 1, and a drying module is installed on the right side of the inside of the spray box 1. A fixing plate 6 is fixedly connected to the upper surface of the spray box 1. A fan housing 7 is fixedly connected to the left side of the fixing plate 6. A filter pipe 12 is fixedly connected to the left end of the fan housing 7. An exhaust pipe 5, a discharge pipe 4, and an air outlet pipe 11 are fixedly connected to the outer surface of the filter pipe 12. A first fan 21 and a second fan 22 are fixedly connected to the inner wall of the fan housing 7 and the inner wall of the air outlet pipe 11, respectively. The outer surfaces of the filter pipe 12 and the outlet pipe 11 are respectively fixedly connected to a first solenoid valve 8 and a second solenoid valve 10. A gas nozzle 30 is fixedly connected to one end of the filter pipe 12 away from the fan housing 7. A replacement pipe 9 is provided in the middle of the filter pipe 12. Two first flanges 31 and two second flanges 32, which are fixedly connected by bolts, are respectively fixedly connected to the outer surface of the middle interface of the filter pipe 12 and the outer surfaces of both ends of the replacement pipe 9. Three disassembly ports 39 are provided on the outer surface of the replacement pipe 9. Three first snap-fit ​​grooves 41, corresponding to the three disassembly ports 39, are provided on the inner wall of the replacement pipe 9. An arc-shaped disassembly plate 23 is snapped into the interior of each disassembly port 39. Each arc-shaped disassembly plate 23... The inner wall of each tube is provided with a second snap-fit ​​groove 46. The inside of the replacement tube 9 is snapped with a first filter screen 35, a second filter screen 36, and a third filter screen 37 corresponding to the three disassembly ports 39. Two snap-fit ​​blocks 38 are fixedly connected to the outer surfaces of the first filter screen 35, the second filter screen 36, and the third filter screen 37. Three self-locking blocks 33 are fixedly connected to the top and bottom of the outer surface of the replacement tube 9 corresponding to the arc-shaped disassembly plate 23. Two assembly plates 42 are fixedly connected to the top of the outer surface of each arc-shaped disassembly plate 23 at the position corresponding to the self-locking block 33. The outer surface of each assembly plate 42 away from the arc-shaped disassembly plate 23 is movably hinged with a self-locking mechanism. Each self-locking plate 43 has a self-locking groove 44 on both sides. Each self-locking block 33 has two reset grooves 50 on its inner sidewall corresponding to the self-locking groove 44. A self-locking plug 34 is slidably connected inside each reset groove 50. Two reset springs 49 are fixedly connected to the inner wall of each reset groove 50 and one side of the self-locking plug 34. A pull rod 48 is fixedly connected to the side of each self-locking plug 34 located inside the reset groove 50. A tension plate 40 is fixedly connected to the end of each pull rod 48 away from the self-locking block 33. Two positioning grooves 47 are opened on the upper surface of each self-locking block 33. A positioning plate 45 is snapped into the inside of each positioning groove 47.

[0018] Specifically, the spray booth 1 is divided into a spraying chamber and a drying chamber by the partition plate 19, realizing functional zoning for painting and drying. The fixing plate 6 fixes the fan housing 7, which is connected to the filter pipe 12. The exhaust pipe 5, discharge pipe 4, and air outlet pipe 11 on the filter pipe 12 correspond to different airflow channels. The first fan 21 and the second fan 22 provide airflow power. The first solenoid valve 8 and the second solenoid valve 10 control the airflow. The replacement pipe 9 is connected to the filter pipe 12 through the first flange 31 and the second flange 32. The first filter screen 35 and the second filter screen 36 inside the replacement pipe 9 are connected to the filter pipe 12. The filter screen 36 and the third filter screen 37 are fixed to the first snap-fit ​​groove 41 and the second snap-fit ​​groove 46 by the snap-fit ​​block 38. The arc-shaped disassembly plate 23 can be quickly disassembled and assembled by the self-locking block 33, the self-locking plate 43, the self-locking plug 34, and the return spring 49. The pull rod 48 and the tension plate 40 facilitate the unlocking of the self-locking structure. The positioning plate 45 and the positioning groove 47 enhance the fixing stability of the arc-shaped disassembly plate 23. The gas nozzle 30 realizes the uniform spraying of airflow, which facilitates the layered filtration of paint mist and quick replacement of filter screens, solves the problems of insufficient filtration and cumbersome replacement of existing single-layer filter screens, and ensures the stability of paint spraying and drying operations.

[0019] Please see Figures 1-8 The bottom ends of exhaust pipe 5 and discharge pipe 4 respectively penetrate into the drying chamber and spraying chamber of spraying box 1. The first solenoid valve 8 is located in the middle of discharge pipe 4 and air outlet pipe 11. The second solenoid valve 10 is located at the bottom of the second fan 22. The end of filter pipe 12 away from fan housing 7 penetrates into the spraying chamber of spraying box 1. The two ends of replacement pipe 9 are in contact with the middle end of filter pipe 12. Replacement pipe 9 is located in the middle of air outlet pipe 11 and discharge pipe 4. The inside of each first snap-fit ​​groove 41 and the second The interior of each locking groove 46 engages with the corresponding locking block 38. The top interior of each self-locking block 33 engages with the outer surface of the self-locking plate 43. Each self-locking plug 34 is trapezoidal in shape, and the outer surface of each self-locking plug 34 engages with the interior of the self-locking groove 44. Each pull rod 48 is located above the middle of the two return springs 49. The end of each pull rod 48 away from the self-locking plug 34 extends to the outside of the self-locking block 33. The outer surface of each positioning plate 45 is fixedly connected to the outer surface of the self-locking plate 43.

[0020] Specifically, exhaust pipe 5 and discharge pipe 4 extend into the drying chamber and spraying chamber respectively to ensure precise airflow delivery. The first solenoid valve 8 controls the airflow between discharge pipe 4 and outlet pipe 11, and the second solenoid valve 10 controls the airflow at the bottom of the second fan 22. The filter pipe 12 extends into the spraying chamber to ensure airflow coverage. The replacement pipe 9 contacts the filter pipe 12 to ensure smooth airflow. The first snap-fit ​​groove 41, the second snap-fit ​​groove 46, and the snap-fit ​​block 38 work together to fix the filter screen. The trapezoidal self-locking plug 34 snaps into the self-locking groove 44 to achieve self-locking of the arc-shaped disassembly plate 23. The pull rod 48 passes through the self-locking block 33 for easy operation. The positioning plate 45 and the self-locking plate 43 are fixed to enhance the structural stability, which can accurately control the airflow direction and firmly fix the filter screen and the arc-shaped disassembly plate 23, avoiding airflow leakage and filter screen displacement, and improving filtration and operation stability.

[0021] Please see Figures 1-8 The spraying module includes a paint tank 17 fixedly connected to the left side of the spraying box 1. A diaphragm pump 14 is fixedly connected to the upper surface of the paint tank 17. The input end of the diaphragm pump 14 extends into the interior of the spraying box 1. The output end of the diaphragm pump 14 is fixedly connected to a discharge pipe 13. A spray pipe 29 is fixedly connected to the upper part of the inner wall of the spraying box 1 and the upper part of the left side of the isolation plate 19. The end of the discharge pipe 13 away from the diaphragm pump 14 extends into the interior of the spraying box 1 and is fixedly connected to the left end of the spray pipe 29. Multiple nozzles 28 are fixedly connected to the bottom surface of the spray pipe 29. Multiple part placement rods 18 are fixedly connected to the bottom of the inner wall of the spraying box 1 and the bottom of the left side of the isolation plate 19. An air extraction shell 26 is fixedly connected to the left side of the isolation plate 19. The bottom end of the discharge pipe 4 is fixedly connected to the upper surface of the air extraction shell 26.

[0022] Specifically, the paint tank 17 stores paint, the diaphragm pump 14 delivers paint to the spray pipe 29 through the discharge pipe 13, and the multiple nozzles 28 on the spray pipe 29 achieve uniform painting of parts. The parts placement rod 18 is used to place the parts to be processed. The air extraction shell 26 collects the paint mist in the spraying chamber and discharges it through the discharge pipe 4. The isolation plate 19 fixes the spray pipe 29 and the parts placement rod 18 to achieve stable paint delivery and uniform painting, while efficiently collecting paint mist, solving the existing problems of uneven painting and paint mist diffusion, and improving the painting quality and the cleanliness of the working environment.

[0023] Please see Figures 1-8 A scale plate 16 is fixedly connected to the inner wall of the left side of the paint box 17, and an injection pipe 15 is fixedly connected to the upper surface of the paint box 17. Two protective doors 3 are movably hinged to the front of the spray box 1, and four pads 2 are fixedly connected to the bottom surface of the spray box 1.

[0024] Specifically, the scale plate 16 inside the paint tank 17 makes it easy to observe the remaining amount of paint and replenish the paint in time through the injection pipe 15 to avoid insufficient paint affecting the operation. The protective door 3 of the spray box 1 can be opened and closed, which makes it convenient to take out and put in parts and maintenance equipment, while preventing paint mist from overflowing during the painting process. Four pads 2 support the spray box 1 to prevent the spray box 1 from being directly in contact with the ground and getting damaged by moisture.

[0025] Please see Figures 1-8 The drying module includes a heat insulation plate 25 fixedly connected to the inner wall of the spray box 1 inside the drying chamber. A heating wire 24 is fixedly connected to the left side of the heat insulation plate 25. Multiple airflow circulation holes 20 are opened on the front and rear sides of the left side of the isolation plate 19. An airflow dispersion plate 27 is fixedly connected to the inner wall of the spray box 1 inside the spray chamber. The left side of the air extraction shell 26 is fixedly connected to the right side of the airflow dispersion plate 27.

[0026] Specifically, the heat insulation plate 25 in the drying chamber reduces heat loss from the heating wire 24. The heating wire 24 generates heat when energized, providing a heat source for drying. The airflow circulation holes 20 on the isolation plate 19 enable airflow circulation between the drying chamber and the spraying chamber. The airflow dispersion plate 27 ensures that the hot airflow is evenly distributed in the spraying chamber. The air extraction shell 26 is connected to the airflow dispersion plate 27 to ensure smooth airflow circulation. This system efficiently utilizes heat, achieves uniform circulation of hot airflow, solves the existing problems of heat waste and uneven drying, and improves drying efficiency and coating curing quality.

[0027] Working principle: First, open the protective door 3 on the front of the spraying box 1, place the tricycle parts to be processed on the parts placement rod 18, close the protective door 3, and use the four feet 2 to support the spraying box 1 to keep it stable. Inject paint into the paint tank 17 through the injection pipe 15 on the paint tank 17, and use the scale plate 16 on the inner wall of the paint tank 17 to observe the amount of paint to ensure it is sufficient. Start the spraying module, and the diaphragm pump 14 works to draw the paint out of the paint tank 17 and deliver it to the spray pipe 29 through the discharge pipe 13. The paint is sprayed out from multiple nozzles 28 on the bottom of the spray pipe 29 to evenly paint the parts. At this time, close the first solenoid valve 8 and the first fan 21, and open the second solenoid valve 10 and the second fan 22. The paint mist generated in the spraying chamber is directly drawn into the spraying chamber by the suction of the second fan 22. The air enters the extraction shell 26, then passes through the discharge pipe 4 into the filter pipe 12. After being filtered by the first filter screen 35, the second filter screen 36, and the third filter screen 37 located in front of the discharge pipe 4, it is discharged from the exhaust pipe 11. After the painting is completed, the drying stage begins. The first solenoid valve 8, the first fan 21, the second fan 22, and the second solenoid valve 10 are opened. The first fan 21 blows air into the filter pipe 12 to generate negative pressure, drawing the heat generated by the heating wire 24 in the drying chamber into the filter pipe 12 through the exhaust pipe 5. As the heat flows through the exhaust pipe 11, the second fan 22 draws in external air in the opposite direction and enters the filter pipe 12 to mix with the heat and reduce the temperature. The mixed airflow is discharged directly through the first solenoid valve 8 and the gas nozzle 30. The airflow diffuses into the spraying chamber through the spreader 27, completing the first airflow delivery. Then, the second cycle begins. The airflow enters the drying chamber through the airflow circulation holes 20 on the isolation plate 19, and is again drawn into the filter pipe 12 by the negative pressure generated by the first fan 21. At this point, the airflow passes through the first filter screen 35, the second filter screen 36, and the third filter screen 37 located in front of the discharge pipe 4, and continues to diffuse into the spraying chamber through the gas nozzle 30, forming a stable cycle to achieve coating curing of the parts. After baking, air is directly blown into the filter pipe 12 by the first fan 21. The second fan 22 rotates forward to discharge the residual heat inside the filter pipe 12 through the exhaust pipe 11. The cooperation of the first fan 21 and the second fan 22 increases the airflow velocity. This process simultaneously improves the filtration efficiency of the first filter screen 35, the second filter screen 36, and the third filter screen 37, completing the painting and drying operation of the entire tricycle parts. When the filter screen needs to be replaced, pull the tension plate 40. The tension plate 40 drives the pull rod 48 to move, causing the self-locking plug 34 connected to the pull rod 48 to slide in the reset groove 50 and compress the reset spring 49 until the self-locking plug 34 disengages from the self-locking groove 44 on the self-locking plate 43. Then, remove the positioning plate 45 to open the arc-shaped disassembly plate 23 on the replacement tube 9. Remove the old first filter screen 35, second filter screen 36, and third filter screen 37 from the replacement tube 9. Then, fix the new filter screen to the first snap-fit ​​groove 41 and the second snap-fit ​​groove 46 through the snap-fit ​​block 38. Close the arc-shaped disassembly plate 23.The return spring 49 rebounds, pushing the self-locking plug 34 back into the self-locking groove 44, and the positioning plate 45 is then locked into the positioning groove 47 to complete the fixation, thus completing the filter replacement.

[0028] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. An integrated painting and drying device for tricycle parts, comprising a painting box (1), characterized in that: The inner wall of the spray box (1) is fixedly connected to an isolation plate (19), which divides the left and right sides of the spray box (1) into a spraying chamber and a drying chamber. A spraying module is provided on the left side of the inside of the spray box (1), and a drying module is provided on the right side of the inside of the spray box (1). A fixing plate (6) is fixedly connected to the upper surface of the spray box (1), and a fan housing (7) is fixedly connected to the left side of the fixing plate (6). A filter pipe (12) is fixedly connected to the left end of the fan housing (7). An exhaust pipe (5), a discharge pipe (4), and an air outlet pipe (11) are fixedly connected to the outer surface of the filter pipe (12). The inner wall of the fan housing (7) and the inner wall of the air outlet pipe (11) are fixedly connected to the fan housing (7). A first fan (21) and a second fan (22) are fixedly connected. The outer surface of the filter pipe (12) and the outer surface of the outlet pipe (11) are respectively fixedly connected to a first solenoid valve (8) and a second solenoid valve (10). The end of the filter pipe (12) away from the fan housing (7) is fixedly connected to a gas nozzle (30). A replacement pipe (9) is provided in the middle of the filter pipe (12). The outer surface of the middle interface of the filter pipe (12) and the outer surfaces of the two ends of the replacement pipe (9) are respectively fixedly connected to two first flanges (31) and two second flanges (32) by bolts. The outer surface of the replacement pipe (9) has three disassembly ports (39). The inner wall of the replacement pipe (9) has three openings (39). There are three first snap-fit ​​grooves (41) corresponding to the three disassembly ports (39). Each disassembly port (39) has an arc-shaped disassembly plate (23) snapped inside. The inner wall of each arc-shaped disassembly plate (23) has a second snap-fit ​​groove (46). The replacement tube (9) has a first filter screen (35), a second filter screen (36), and a third filter screen (37) corresponding to the three disassembly ports (39) snapped inside. The outer surfaces of the first filter screen (35), the second filter screen (36), and the third filter screen (37) are all fixedly connected to two snap-fit ​​blocks (38). The top and bottom of the outer surface of the replacement tube (9) corresponding to the arc-shaped disassembly plate (23) are fixedly connected to three Each self-locking block (33) has two assembly plates (42) fixedly connected to the top of the outer surface of each arc-shaped disassembly plate (23) at a position corresponding to the self-locking block (33). Each assembly plate (42) has a self-locking plate (43) movably hinged to the outer surface of the end away from the arc-shaped disassembly plate (23). Each self-locking plate (43) has a self-locking groove (44) on both sides. Each self-locking block (33) has two reset grooves (50) on the inner sidewall corresponding to the self-locking groove (44). Each reset groove (50) has a self-locking plug (34) slidably connected inside. Each reset groove (50) has two reset springs (49) fixedly connected to the inner wall of the reset groove (50) and one side of the self-locking plug (34).Each of the self-locking plugs (34) has a pull rod (48) fixedly connected to one side inside the reset slot (50). A tension plate (40) is fixedly connected to the end of each pull rod (48) away from the self-locking block (33). Two positioning slots (47) are formed on the upper surface of each self-locking block (33), and a positioning plate (45) is engaged inside each positioning slot (47).

2. The integrated painting and drying device for tricycle parts according to claim 1, characterized in that: The bottom ends of the exhaust pipe (5) and the discharge pipe (4) respectively penetrate into the drying chamber and the spraying chamber of the spraying box (1). The first solenoid valve (8) is located in the middle of the discharge pipe (4) and the air outlet pipe (11). The second solenoid valve (10) is located at the bottom of the second fan (22). The end of the filter pipe (12) away from the fan housing (7) penetrates into the spraying chamber of the spraying box (1). The two ends of the replacement pipe (9) are in contact with the middle end of the filter pipe (12) that is close to each other. The replacement pipe (9) is located in the middle of the air outlet pipe (11) and the discharge pipe (4). The interior of each of the first snap-fit ​​grooves (41) The interior of the second locking slot (46) is engaged with the corresponding locking block (38). The top of each self-locking block (33) is engaged with the outer surface of the self-locking plate (43). Each self-locking plug (34) is trapezoidal in shape. The outer surface of each self-locking plug (34) is engaged with the interior of the self-locking groove (44). Each pull rod (48) is located above the middle of the two return springs (49). The end of each pull rod (48) away from the self-locking plug (34) extends to the outside of the self-locking block (33). The outer surface of each positioning plate (45) is fixedly connected to the outer surface of the self-locking plate (43).

3. The integrated painting and drying device for tricycle parts according to claim 1, characterized in that: The spraying module includes a paint tank (17) fixedly connected to the left side of the spraying box (1). A diaphragm pump (14) is fixedly connected to the upper surface of the paint tank (17). The input end of the diaphragm pump (14) extends into the interior of the spraying box (1). The output end of the diaphragm pump (14) is fixedly connected to a discharge pipe (13). A spray pipe (29) is fixedly connected to the upper part of the inner wall of the spraying box (1) and the upper part of the left side of the partition plate (19). The discharge pipe (13) is far away from the partition plate. One end of the membrane pump (14) extends into the interior of the spray box (1) and is fixedly connected to the left end of the spray pipe (29). Multiple nozzles (28) are fixedly connected to the bottom surface of the spray pipe (29). Multiple parts placement rods (18) are fixedly connected to the bottom of the inner wall of the spray box (1) and the bottom of the left side of the isolation plate (19). An air extraction shell (26) is fixedly connected to the left side of the isolation plate (19). The bottom end of the discharge pipe (4) is fixedly connected to the upper surface of the air extraction shell (26).

4. The integrated painting and drying device for tricycle parts according to claim 3, characterized in that: A scale plate (16) is fixedly connected to the inner wall of the left side of the paint tank (17), and a filling pipe (15) is fixedly connected to the upper surface of the paint tank (17).

5. The integrated painting and drying device for tricycle parts according to claim 3, characterized in that: The drying module includes a heat insulation plate (25) fixedly connected to the inner wall of the spray box (1) and located inside the drying chamber. A heating wire (24) is fixedly connected to the left side of the heat insulation plate (25). Multiple airflow circulation holes (20) are opened on the front and back sides of the left side of the isolation plate (19). An airflow dispersion plate (27) is fixedly connected to the inner wall of the spray box (1) and located inside the spray chamber. The left side of the air extraction shell (26) is fixedly connected to the right side of the airflow dispersion plate (27).

6. The integrated painting and drying device for tricycle parts according to claim 1, characterized in that: The front of the spray box (1) has two protective doors (3) that are hinged to it, and the bottom of the spray box (1) has four feet (2) that are fixedly connected to it.

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