Automatic molding powder spraying equipment for air compressor tank and automatic molding powder recycling system

Abstract

The invention relates to an air compressor tank plastic powder automatic spraying device and a plastic powder automatic recycling system, the air compressor tank plastic powder automatic spraying device comprises a suspension conveyor, a plastic spraying room and a plastic spraying machine, a lifting plate of the plastic spraying machine is provided with a plurality of spray guns, the spray guns extend into the plastic spraying room, the plastic spraying room is internally provided with an arc-shaped guide rail, and the arc-shaped guide rail is connected with the suspension conveyor. The arc-shaped guide rail is slidably connected with a limiting seat, the spray gun comprises a first gun barrel, a second gun barrel and a gun head, the first gun barrel is arranged on the mounting seat, one end of the second gun barrel is in sliding fit with the first gun barrel, the other end of the second gun barrel is rotatably connected with the gun head, and the gun head is connected with the limiting seat. The plastic spraying quality of the two end faces of the air compressor tank can be improved, and the utilization rate of molding powder is increased.

Description

Technical Field

[0001] This invention relates to the field of spraying equipment, and in particular to an automatic powder coating equipment for air compressor tanks and an automated powder recycling system. Background Technology

[0002] After the air compressor tank is welded, it first undergoes surface polishing in a shot blasting machine. After polishing, each air compressor tank is hung individually on a suspended conveyor, with one end facing down and the other towards the sky. The suspended conveyor then transports the air compressor tanks one by one into an automatic powder coating system. The spray nozzles in the system spray powder onto the surface of the air compressor tank, performing a powder coating treatment.

[0003] Chinese patent CN113546776A discloses an automated electrostatic powder coating machine, including a base plate, a lifting assembly, a controller, and a motor. The lifting assembly includes a drive column, a lifting plate connected to the right side of the drive column, and a spray head connected to the right side of the lifting plate.

[0004] Because the two ends of the air compressor tank are spherical, when the above-mentioned equipment is used to spray plastic powder onto the two end faces of the air compressor tank, the nozzle of the equipment cannot rotate and cannot be perpendicular to the spraying surface. Therefore, the plastic powder sprayed from the nozzle will be sprayed almost parallel to the two end faces of the air compressor tank. This makes it impossible for the plastic powder to evenly cover the two end faces of the air compressor tank. In the actual powder coating process, the two end faces of the air compressor tank are prone to defects such as uneven coating distribution, sagging, or bubbles. Summary of the Invention

[0005] This application provides an automatic powder coating equipment for air compressor tanks and an automated powder recycling system, which can improve the powder coating quality of both ends of the air compressor tank and increase the utilization rate of powder.

[0006] The automatic powder coating equipment for air compressor tanks provided in this application adopts the following technical solution: An automatic powder coating device for air compressor tanks includes a suspended conveyor, a powder coating booth, and a powder coating machine. Multiple spray guns are mounted on a lifting plate of the powder coating machine, and all spray guns extend into the powder coating booth. The powder coating booth is characterized by an arc-shaped guide rail with a limiting seat slidably connected to it. Each spray gun includes a first barrel, a second barrel, and a nozzle. The first barrel is mounted on the lifting plate, one end of the second barrel is slidably engaged with the first barrel, and the other end of the second barrel is rotatably connected to the nozzle. The nozzle is connected to the limiting seat.

[0007] By adopting the above technical solution, when the lifting plate moves up and down, the first gun barrel will follow the lifting plate's up and down movement. The up and down movement of the first gun barrel will drive the second gun barrel and the gun head to move up and down. Due to the limitations of the limiting seat and the arc-shaped guide rail, the gun head's movement path is arc-shaped. Therefore, the gun head will rotate relative to the second gun barrel during movement, causing the second gun barrel to slide back and forth within the first gun barrel. Because the gun head's movement trajectory is arc-shaped, the orientation of the gun head when spraying the two end faces of the air compressor tank is different from that when spraying the side walls of the air compressor tank. This ensures the coating quality on the side wall surface of the air compressor tank while allowing the gun head to get closer to the air compressor tank when spraying the end faces, and allows the gun head to spray the two end faces of the air compressor tank at a near-vertical angle to the maximum extent, thus improving the coating quality of the two end faces of the air compressor tank.

[0008] Preferably, the second barrel includes a main pipe section that slides with the first barrel and a branch pipe section disposed on the main pipe section. The axis of the branch pipe section intersects perpendicularly with the axis of the main pipe section, and the branch pipe section is rotatably connected to the gun head.

[0009] By adopting the above technical solution, the production of the second barrel can be facilitated.

[0010] Preferably, a turntable is rotatably connected to the end of the pipe section away from the nozzle. The turntable is provided with an anti-sticking rod that fits against the inner wall of the pipe section. The pipe section is also provided with a drive mechanism for controlling the rotation of the turntable.

[0011] By adopting the above technical solution, the reversing structure of the branch pipe section and the spray gun head creates a bend in the powder spraying channel. Therefore, powder tends to adhere and deposit on the inner wall where the branch pipe section connects to the main pipe section, reducing the inner diameter of the branch pipe section and affecting powder flow. Therefore, during the start-up of the spraying equipment, the drive mechanism continuously drives the turntable to rotate, causing the anti-sticking rod to move continuously, constantly removing powder adhering to the inner wall of the branch pipe section and preventing powder adhesion and deposition.

[0012] Preferably, the drive mechanism includes a drive rod rotatably connected within the branch pipe section, two first one-way bearings and a second one-way bearing mounted on the drive rod and locked in opposite directions, a bevel gear one sleeved on the outer ring of the first one-way bearing, a bevel gear two sleeved on the outer ring of the second one-way bearing, a rotating rod rotatably connected within the branch pipe, a bevel gear three and a bevel gear four sleeved on the rotating rod, and a bevel gear five rotatably connected to the drive rod; the bevel gear one and the bevel gear two are located on both sides of the bevel gear three and mesh with the bevel gear three; the drive rod extends into the gun head and is connected to the gun head, the turntable is rotatably connected to the drive rod, the turntable is connected to the bevel gear five, and the bevel gear four meshes with the bevel gear five.

[0013] By adopting the above technical solution, the gun head will reciprocate. When the gun head rises and rotates forward, it will drive the drive rod to rotate forward. Because the first one-way bearing is locked in this direction, bevel tooth one is driven to rotate by the drive rod. At this time, the second one-way bearing is in an overrunning state, allowing bevel tooth two to rotate freely (driven by bevel tooth three). The forward rotation of the drive rod does not directly drive bevel tooth two. When bevel tooth one rotates, it drives bevel tooth three to rotate, and when bevel tooth three rotates, it carries bevel tooth two to rotate. At this time, under the action of the second one-way bearing, the rotation of bevel tooth two and the forward rotation of the drive rod do not affect each other. When the gun head moves downward and reverses, it drives the drive rod to rotate in the opposite direction. When the drive rod reverses, the second one-way bearing is locked, and the drive rod drives bevel tooth two to rotate. At this time, the first one-way bearing is in an overrunning state, allowing bevel tooth one to rotate freely. When bevel tooth two rotates, it drives bevel tooth three to rotate, and when bevel tooth three rotates, it carries bevel tooth one to rotate. At this time, under the action of the first one-way bearing, the rotation of bevel tooth one and the forward rotation of the drive rod do not affect each other. Therefore, as long as the gun head rotates, the third bevel tooth will rotate in one direction. When the third bevel tooth rotates, it will drive the rotating rod and the fourth bevel tooth to rotate. When the fourth bevel tooth rotates, it will drive the fifth bevel tooth and the turntable to rotate. When the turntable rotates, it will drive the first anti-stick rod to move continuously.

[0014] Preferably, the end of the anti-sticking rod away from the turntable extends into the nozzle, and the end of the anti-sticking rod extending into the nozzle is provided with an anti-sticking rod two, which contacts the inner wall of the nozzle facing the branch pipe section.

[0015] By adopting the above technical solution, when the first anti-sticking rod moves, it will drive the second anti-sticking rod to rotate, thereby knocking off the plastic powder adhering to the inner wall of the nozzle facing the pipe section.

[0016] Preferably, the branch pipe section includes a connecting pipe and a mounting shell that are plugged into each other; one end of the connecting pipe is connected to the main pipe section, and the other end of the connecting pipe is rotatably connected to the nozzle; the driving mechanism is located inside the mounting shell, and the turntable is rotatably connected to the mounting shell, the turntable isolating the inner cavity of the mounting shell from the inner cavity of the connecting pipe.

[0017] By adopting the above technical solution, during the assembly and production of the pipe sections, the drive component and turntable are first placed inside the mounting housing, and then the housing is inserted into the connecting pipe, so that the turntable extends into the connecting pipe and isolates the inner cavity of the mounting housing and the inner cavity of the connecting pipe, thus preventing plastic powder from entering the inner cavity of the mounting housing.

[0018] Preferably, two connecting blocks are symmetrically arranged on the connecting pipe, and two mating grooves are provided on the mounting shell. Both connecting blocks are inserted into the mating grooves, and two bolts are provided on the mounting shell, which are threaded onto the two connecting blocks respectively.

[0019] Preferably, the drive rod is provided with a plug, the inner wall of the gun head is provided with a slot one for inserting the drive rod, the side wall of the slot one is provided with a slot two, and the plug is inserted into the slot two.

[0020] By adopting the above technical solution, when the housing is inserted into the connecting tube, the drive rod extends into the connecting tube and the gun head, and the drive rod is inserted into slot one and the insert block is inserted into slot two, thus completing the connection between the drive rod and the gun head, so that when the gun head rotates, it drives the drive rod to rotate.

[0021] This application provides an automated plastic powder recycling system, which adopts the following technical solution: An automatic powder coating equipment for air compressor tanks includes a powder storage tank, a collection pipe, and a high-pressure blower. The collection pipe extends into the powder coating booth, and the high-pressure blower is used to draw powder from the powder coating booth into the collection pipe and the powder storage tank.

[0022] The main technical effects of this invention are reflected in the following aspects: 1. The present invention uses the cooperation of arc-shaped guide rail and limit seat to change the angle when the gun head moves up and down, so that the gun head sprays the two end faces of the air compressor tank at a near vertical angle to the maximum extent, thereby improving the spraying quality of the two end faces of the air compressor tank. 2. This invention converts the force of the spray gun head rotation into the rotational force of the anti-stick rod, preventing the occurrence of powder deposition problems caused by the rotating structure of the spray gun; 3. This invention facilitates the installation of components such as turntables and drive mechanisms by designing plug-in connecting pipes and sub-pipe sections. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of an automatic spraying equipment and an automated plastic powder recycling system.

[0024] Figure 2 This is a top-view structural diagram of an automatic spraying equipment and an automated plastic powder recycling system.

[0025] Figure 3 yes Figure 1 A partial cross-sectional view of the automatic spraying equipment and the automated plastic powder recycling system.

[0026] Figure 4 This is a structural diagram of a powder coating machine, spray gun, curved guide rail, and limit seat.

[0027] Figure 5 yes Figure 4 A schematic diagram of the structure of each component after the spray gun is moved upwards.

[0028] Figure 6 yes Figure 3A cross-sectional view of a gun barrel and a gun head along line AA.

[0029] Figure 7 It is a structural diagram of components such as the mounting shell and drive mechanism.

[0030] Figure 8 This is a partial cross-sectional view of the gun head.

[0031] Figure 9 yes Figure 8 A magnified view of a section at point C.

[0032] Reference numerals: 1. Suspended conveyor; 2. Powder coating booth; 21. Arc-shaped guide rail; 22. Limiting seat; 3. Powder coating machine; 31. Lifting plate; 4. Spray gun; 41. Gun barrel one; 42. Gun barrel two; 421. Main pipe section; 422. Branch pipe section; 4221. Connecting pipe; 4222. Mounting housing; 4223. Connecting block; 4224. Mating groove; 4225. Bolt; 43. Gun head; 51. 52. Turntable; 6. Anti-sticking rod 1; 7. Drive mechanism; 81. Drive rod; 92. First one-way bearing; 103. Second one-way bearing; 11. Bevel gear 1; 12. Bevel gear 2; 13. Rotating rod; 14. Bevel gear 3; 15. Bevel gear 4; 16. Bevel gear 5; 17. Anti-sticking rod 2; 18. Insert block; 19. Slot 1; 100. Slot 2; 101. Plastic storage tank; 11. Collection pipe; 12. High-pressure blower. Detailed Implementation

[0033] The present invention will be further described in detail below with reference to the accompanying drawings, so that the technical solution of this application can be more easily understood and mastered.

[0034] Reference Figures 1-3 This application discloses an automatic powder coating device for air compressor tanks, comprising a suspended conveyor 1, a powder coating booth 2, and two powder coating machines 3. The air compressor tanks are suspended on hooks of the suspended conveyor 1, which transports the air compressor tanks one by one into the powder coating booth 2. Two sets of arc-shaped guide rails 21 are fixedly installed on the side walls of the powder coating booth 2, located on both sides of the hooks of the suspended conveyor 1. Each set of arc-shaped guide rails 21 is slidably connected to a limiting seat 22.

[0035] Reference Figure 1 , Figure 4 and Figure 5Two powder coating machines 3 are located on either side of the powder coating chamber 2. Each powder coating machine 3 has three spray guns 4 mounted on its lifting plate 31. All three spray guns 4 extend into the powder coating chamber 2. Each spray gun 4 includes a first barrel 41, a second barrel 42, and a nozzle 43, with the nozzle 43 mounted on a limiting seat 22. The second barrel 42 includes a main pipe section 421 that slides with the first barrel 41 and a branch pipe section 422 located on the main pipe section 421. The axis of the branch pipe section 422 intersects perpendicularly with the axis of the main pipe section 421, and the branch pipe section 422 is rotatably connected to the nozzle 43. The lifting movement of the lifting plate 31 of the powder coating machine 3 is controlled by a motor and a reciprocating screw installed inside the powder coating machine 3. When the motor inside the powder coating machine 3 starts, it drives the reciprocating screw to rotate. The lifting plate 31 is connected to the reciprocating screw, and when the reciprocating screw rotates, it drives the lifting plate 31 of the powder coating machine 3 to move up and down reciprocally.

[0036] Reference Figure 4 , Figure 6 and Figure 7 The branch pipe section 422 includes a connecting pipe 4221 and a mounting shell 4222 that are interlocked with each other. One end of the connecting pipe 4221 is connected to the main pipe section 421, and the other end of the connecting pipe 4221 is rotatably connected to the nozzle 43. The mounting shell 4222 is inserted into the end of the connecting pipe 4221 away from the nozzle 43. Two connecting blocks 4223 are symmetrically arranged on the connecting pipe 4221. The mounting shell 4222 has two mating grooves 4224, and the two connecting blocks 4223 are inserted into the mating grooves 4224. The mounting shell 4222 has two bolts 4225, which are threaded onto the two connecting blocks 4223 respectively.

[0037] Reference Figure 4 , Figure 6 and Figure 7 A turntable 51 is rotatably connected to the mounting housing 4222. Part of the turntable 51 is located inside the connecting pipe 4221, isolating the inner cavity of the mounting housing 4222 from the inner cavity of the connecting pipe 4221. An anti-sticking rod 52 is fixed to the turntable 51, and the anti-sticking rod 52 is in contact with the inner wall of the connecting pipe 4221. When the turntable 51 rotates, it drives the anti-sticking rod 52 to move continuously, thereby constantly removing the plastic powder adhering to the inner wall of the pipe section 422 and preventing the plastic powder from adhering and depositing.

[0038] The mounting housing 4222 also includes a drive mechanism 6 for controlling the rotation of the turntable 51. The drive mechanism 6 includes a drive rod 61 rotatably connected to the mounting housing 4222, two first one-way bearings 62 and a second one-way bearing 63 mounted on the drive rod 61 and locked in opposite directions, a bevel gear 64 sleeved on the outer ring of the first one-way bearing 62, a bevel gear 65 sleeved on the outer ring of the second one-way bearing 63, a rotating rod 66 rotatably connected to the branch pipe, a bevel gear 67 and a bevel gear 68 sleeved on the rotating rod 66, and a bevel gear 69 rotatably connected to the drive rod 61.

[0039] Reference Figure 4 , Figure 6 and Figure 7 Bevel teeth 64 and 65 are located on both sides of bevel teeth 67 and mesh with bevel teeth 67. Bevel teeth 67 acts as an idler gear to transmit the movement of bevel teeth 64 and 65. Bevel teeth 68 mesh with bevel teeth 69. Turntable 51 is rotatably connected to drive rod 61 and connected to bevel teeth 69.

[0040] Reference Figures 6-9 The axis of the drive rod 61 intersects perpendicularly with the axis of the rotating rod 66. One end of the drive rod 61 passes through the connecting pipe 4221 and extends into the gun head 43. An insert block 81 is provided on the end of the drive rod 61 that extends into the gun head 43. A slot 82 for inserting the drive rod 61 is provided on the inner wall of the gun head 43. A slot 83 is provided on the side wall of the slot 82. The drive rod 61 is inserted into the slot 82 and the insert block 81 is inserted into the slot 83.

[0041] Reference Figures 6-9 The anti-sticking rod 52, with one end away from the turntable 51, extends into the inner cavity of the nozzle 43 and is equipped with an anti-sticking rod 7. The anti-sticking rod 7 contacts the inner wall of the nozzle 43 facing the branch pipe section 422. When the anti-sticking rod 52 moves, it drives the anti-sticking rod 7 to rotate, thereby removing the plastic powder adhering to the inner wall of the nozzle 43 facing the branch pipe section 422.

[0042] Reference Figure 3 An automated plastic powder recycling system according to this application includes a plastic storage tank 91, a collection pipe 92, and a high-pressure blower 93. The collection pipe 92 extends into the spray booth 2, and the high-pressure blower 93 is used to draw plastic powder from the spray booth 2 into the collection pipe 92 and the plastic storage tank 91.

[0043] Reference Figures 1-9 The powder coating process for the air compressor tank is as follows: First, the air compressor canisters are suspended one by one onto the hooks of the overhead conveyor 1. Then, the overhead conveyor 1 transports the air compressor canisters one by one into the powder coating booth 2. After the air compressor canisters are transported between multiple spray nozzles 43, two powder coating machines 3 begin operating to spray powder coating onto the surface of the air compressor canisters.

[0044] When the powder coating machine 3 is operating, the lifting plate 31 of the powder coating machine 3 will move up and down reciprocally. When the lifting plate 31 rises, it will lift the gun barrel 41. When the gun barrel 41 rises, it will drive the main pipe section 421, connecting pipe 4221, mounting shell 4222, gun head 43, and limit seat 22 to rise. Due to the limitation of the limit seat 22 and the arc-shaped guide rail 21, the movement path of the gun head 43 is arc-shaped. Therefore, the gun head 43 will rotate relative to the connecting pipe 4221 during the movement, and the main pipe end will slide inside the gun barrel 41.

[0045] Because the movement trajectory of the nozzle 43 is arc-shaped, the orientation of the nozzle 43 when spraying the two end faces of the air compressor tank is different from that when spraying the side wall of the air compressor tank. While ensuring the coating quality of the side wall surface of the air compressor tank, the nozzle 43 can get closer to the air compressor tank when spraying the end faces of the air compressor tank, and the nozzle 43 can spray the two end faces of the air compressor tank at a near-vertical angle to the maximum extent, thereby improving the coating quality of the two end faces of the air compressor tank.

[0046] When the nozzle 43 rotates forward, it drives the drive rod 61 to rotate forward. Because the first one-way bearing 62 is locked in this direction, the first bevel gear 64 is driven to rotate by the drive rod 61. At this time, the second one-way bearing 63 is in an overrunning state, allowing the second bevel gear 65 to rotate freely (driven by the third bevel gear 67). The forward rotation of the drive rod 61 does not directly drive the second bevel gear 65. When the first bevel gear 64 rotates, it drives the third bevel gear 67 to rotate, and the rotation of the third bevel gear 67 carries the second bevel gear 65 to rotate. At this point, under the action of the second one-way bearing 63, the rotation of the second bevel gear 65 and the forward rotation of the drive rod 61 do not affect each other.

[0047] When the lifting plate 31 moves downward, it drives components such as the gun barrel 41 to move downward. During the downward movement of the gun head 43, it reverses direction, causing the drive rod 61 to reverse direction. When the drive rod 61 reverses direction, the second one-way bearing 63 locks, and the drive rod 61 drives the second bevel gear 65 to rotate. At this time, the first one-way bearing 62 is in an overrunning state, and the first bevel gear 64 can rotate freely. When the second bevel gear 65 rotates, it drives the third bevel gear 67 to rotate, and when the third bevel gear 67 rotates, it drives the first bevel gear 64 to rotate. At this time, under the action of the first one-way bearing 62, the rotation of the first bevel gear 64 and the forward rotation of the drive rod 61 do not affect each other.

[0048] Therefore, as long as the nozzle 43 rotates, the conical tooth 67 will rotate in one direction. The rotation of the conical tooth 67 drives the rotating rod 66 and the conical tooth 68 to rotate. The rotation of the conical tooth 68 drives the conical tooth 69 and the turntable 51 to rotate. The rotation of the turntable 51 drives the anti-sticking rod 52 to move continuously, constantly removing the plastic powder adhering to the inner wall of the branch pipe section 422 to prevent plastic powder from adhering and depositing. The movement of the anti-sticking rod 52 drives the anti-sticking rod 7 to rotate, thereby removing the plastic powder adhering to the inner wall of the nozzle 43 facing the connecting pipe 4221.

[0049] During the powder coating process of the air compressor tank, excess plastic powder will float in the powder coating booth 2. This part of the plastic powder will be sucked into the collection pipe 92 and collected into the storage tank 91 for secondary use later.

[0050] Of course, the above are just typical examples of this application. In addition, this application may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed in this application.

Claims

1. An automatic powder coating equipment for an air compressor tank, comprising a suspended conveyor (1), a powder coating chamber (2), and a powder coating machine (3), wherein multiple spray guns (4) are provided on the lifting plate (31) of the powder coating machine (3), and all of the multiple spray guns (4) extend into the powder coating chamber (2), characterized in that: The spray booth (2) is equipped with an arc-shaped guide rail (21), and a limiting seat (22) is slidably connected on the arc-shaped guide rail (21). The spray gun (4) includes a first barrel (41), a second barrel (42), and a gun head (43). The first barrel (41) is installed on the lifting plate (31). One end of the second barrel (42) is slidably engaged with the first barrel (41), and the other end of the second barrel (42) is rotatably connected to the gun head (43). The gun head (43) is connected to the limiting seat (22).

2. The automatic powder coating equipment for air compressor tanks and the automatic powder recycling system according to claim 1, characterized in that: The second barrel (42) includes a main pipe section (421) that slides with the first barrel (41) and a branch pipe section (422) provided on the main pipe section (421). The axis of the branch pipe section (422) intersects perpendicularly with the axis of the main pipe section (421). The branch pipe section (422) is rotatably connected to the gun head (43).

3. The automatic powder coating system for an air compressor tank according to claim 2, characterized in that: A turntable (51) is rotatably connected to the end of the pipe section (422) away from the nozzle (43). An anti-sticking rod (52) is provided on the turntable (51). The anti-sticking rod (52) is in contact with the inner wall of the pipe section (422). A drive mechanism (6) for controlling the rotation of the turntable (51) is also provided in the pipe section (422).

4. The automatic powder coating equipment for an air compressor tank according to claim 3, characterized in that: The drive mechanism (6) includes a drive rod (61) rotatably connected within the branch pipe section (422), two first one-way bearings (62) and a second one-way bearing (63) mounted on the drive rod (61) and in opposite locking directions, a bevel gear one (64) sleeved on the outer ring of the first one-way bearing (62), a bevel gear two (65) sleeved on the outer ring of the second one-way bearing (63), a rotating rod (66) rotatably connected within the branch pipe, a bevel gear three (67) sleeved on the rotating rod (66), and bevel gears... Fourth (68), a bevel tooth five (69) rotatably connected to the drive rod (61); the bevel tooth one (64) and the bevel tooth two (65) are located on both sides of the bevel tooth three (67) and are meshed with the bevel tooth three (67); the drive rod (61) extends into the gun head (43) and is connected to the gun head (43); the turntable (51) is rotatably connected to the drive rod (61); the turntable (51) is connected to the bevel tooth five (69); and the bevel tooth four (68) meshes with the bevel tooth five (69).

5. The automatic powder coating equipment for an air compressor tank according to claim 3, characterized in that: The anti-sticking rod 1 (52) extends into the gun head (43) at the end away from the turntable (51). The anti-sticking rod 2 (7) is provided on the end of the anti-sticking rod 1 (52) that extends into the gun head (43). The anti-sticking rod 2 (7) is in contact with the inner wall of the gun head (43) facing the branch pipe section (422).

6. The automatic powder coating equipment for an air compressor tank according to claim 4, characterized in that: The branch pipe section (422) includes a connecting pipe (4221) and a mounting shell (4222) that are plugged into each other; one end of the connecting pipe (4221) is connected to the main pipe section (421), and the other end of the connecting pipe (4221) is rotatably connected to the gun head (43); the driving mechanism (6) is located inside the mounting shell (4222), and the turntable (51) is rotatably connected to the mounting shell (4222), and the turntable (51) isolates the inner cavity of the mounting shell (4222) and the inner cavity of the connecting pipe (4221).

7. The automatic powder coating equipment for an air compressor tank according to claim 6, characterized in that: Two connecting blocks (4223) are symmetrically arranged on the connecting pipe (4221). The mounting shell (4222) has two mating grooves (4224). Both connecting blocks (4223) are inserted into the mating grooves (4224). The mounting shell (4222) has two bolts (4225), which are threaded onto the two connecting blocks (4223) respectively.

8. The automatic powder coating equipment for an air compressor tank according to claim 6, characterized in that: The drive rod (61) is provided with a plug (81), and the inner wall of the gun head (43) is provided with a slot one (82) for the drive rod (61) to be inserted. The side wall of the slot one (82) is provided with a slot two (83), and the plug (81) is inserted into the slot two (83).

9. An automated plastic powder recycling system, characterized in that: The automatic powder coating equipment for air compressor tanks according to any one of claims 1-8 includes a plastic storage tank (91), a collection pipe (92), and a high-pressure blower (93). The collection pipe (92) extends into the powder coating chamber (2), and the high-pressure blower (93) is used to draw the powder from the powder coating chamber (2) into the collection pipe (92) and the plastic storage tank (91).

Images