CN112588495B

CN112588495B - Suspension type powder application device

Info

Publication number: CN112588495B
Application number: CN202011240374.2A
Authority: CN
Inventors: 赵涛
Original assignee: 赵涛
Current assignee: Beijing Yunhai Lingdong Intelligent Technology Co.,Ltd.
Priority date: 2020-11-09
Filing date: 2020-11-09
Publication date: 2021-07-02
Anticipated expiration: 2040-11-09
Also published as: CN112588495A

Abstract

The invention provides a suspension type powder coating device, and relates to the technical field of coating equipment. This suspension type powder application device, which comprises a housin, casing top front end fixedly connected with aspiration pump, top fixedly connected with goes out tuber pipe and goes out tuber pipe bottom fixedly connected with a plurality of air outlet in the first cavity, the inboard equal fixed connection in one end of connecting rod of slider, the equal fixedly connected with electrostatic powder gun in moving platform top. Can reduce the heat loss that the heating pipe produced through first rotary plate valve and second rotary plate valve, then can spout hot-blast steel member on through the aspiration pump to assist through hot-blast to the steel member and preheat, it is higher to make the preheating efficiency, and hot-blast foreign matter that can be on the steel member is got rid of in addition, produce badly when preventing to carry out powder application, can make moving platform area sound electron spray crazy rifle reciprocate when carrying out powder application through fourth motor drive, make spun powder coating distribute more evenly, be worth wideling popularize.

Description

Suspension type powder application device

Technical Field

The invention relates to the technical field of coating equipment, in particular to a suspension type powder coating device.

Background

The coating is an important link in the modern product manufacturing process, the fireproof coating quality is one of important aspects of the overall quality of products, the appearance quality of the products not only reflects the protection and decoration performance of the products, but also is an important factor forming the value of the products, the coating is used as a system engineering, the coating comprises three basic procedures of treatment, coating process and drying of the surface of a coated object before coating, and a coating system with reasonable design, selects proper coating, determines good operation environmental conditions, performs important links of quality, process management, technical economy and the like, and particularly for steel structures of factory buildings of wind power plants, the coating of the fireproof coating is more important.

At present, more common powder coating process sprays powder coating through an electrostatic powder gun, so that charged powder coating is attached to a steel member, the steel member is generally required to be baked and preheated before powder coating, the attachment efficiency and the attachment effect of the powder coating on the steel member can be enhanced, but the steel member is simply heated through baking, the preheating efficiency is lower, and when powder coating is carried out on a steel member with a larger size, a plurality of electrostatic powder guns are required to be arranged, so that the sprayed powder coating can be more uniformly attached to the steel member.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a suspension type powder coating device, which solves the problems of low preheating efficiency during powder coating and uneven distribution of powder coating during coating of large-sized steel members.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: a suspension type powder coating device comprises a shell, wherein a first clapboard is fixedly connected at the middle position in the shell, the front end of the first clapboard in the shell is a first cavity, the rear end of the first clapboard is a second cavity, heating pipes are fixedly connected with the inner walls of the two sides in the first cavity, the front end of the top of the shell is fixedly connected with an air pump, the output end of the air pump is fixedly connected with the top end of an air pipe, the top in the first cavity is fixedly connected with an air outlet pipe, the bottom end of the air pipe penetrates through the top of the shell and is fixedly connected with the top of the air outlet pipe, the input end of the air pump is fixedly connected with one end of a connecting pipe, the other end of the connecting pipe is fixedly connected with the rear end of a filter, the front end of the filter is fixedly connected with the top end of the air pump, the bottom end of the air pump penetrates, the outer wall of the shell on one side of the second cavity is fixedly connected with two cover bodies, the upper part in each cover body is fixedly connected with a second partition plate, the top in each cover body is fixedly connected with a fourth motor, the output end of each fourth motor is fixedly connected to the top end of a screw rod, the bottom end of each screw rod is rotatably connected to the bottom in each cover body through a third bearing seat, the outer diameter of each screw rod is in threaded connection with a sliding block, the front end and the rear end of each sliding block are in sliding connection with the inner wall of each cover body, the inner side of each sliding block is fixedly connected to one end of a connecting rod, the side wall on one side of each second cavity is provided with two limiting grooves corresponding to the cover bodies, the other end of each connecting rod penetrates through the limiting grooves to extend into the second cavity and is fixedly connected with a moving platform, the tops of the moving platforms are fixedly connected with electrostatic powder spraying, the bottom of casing front end and rear end one side and the equal fixedly connected with second bearing frame of first baffle front end one side bottom, the first bearing frame and the second bearing frame internal rotation of casing front end are connected with first pivot and first pivot opposite side fixedly connected with first rotary plate valve, the first bearing frame and the second bearing frame internal rotation of first baffle front end are connected with second pivot and second pivot opposite side fixedly connected with second rotary plate valve, the first bearing frame and the second bearing frame internal rotation of casing rear end are connected with third pivot and third pivot opposite side fixedly connected with third rotary plate valve.

Preferably, the front end of one side of the shell is fixedly connected with a heater, and the heating pipes are connected with the heater through leads.

Preferably, the casing front end is provided with the pan feeding mouth that corresponds with first rotary plate valve, be provided with the ferry mouth that crosses that corresponds with the second rotary plate valve in the first baffle, the casing rear end is provided with the discharge gate that corresponds with the third rotary plate valve, pan feeding mouth, cross ferry mouth and discharge gate top all are provided with first through-hole and three first through-hole and are provided with the conveyer belt that runs through, conveyer belt bottom fixedly connected with evenly distributed's couple.

Preferably, the top ends of the first rotating shaft, the second rotating shaft and the third rotating shaft penetrate through the first bearing seat and extend upwards to form a second bevel gear, the front end of the top of the shell is fixedly connected with a first motor corresponding to the first rotating shaft, the middle position of the top of the shell is fixedly connected with a second motor corresponding to the second rotating shaft, the rear end of the top of the shell is fixedly connected with a third motor corresponding to the third rotating shaft, transmission shafts are arranged in the first motor, the second motor and the third motor, the first bevel gear is fixedly connected with one end of the outer side of the transmission shaft, and the first bevel gear and the second bevel gear are connected in a meshed mode.

Preferably, the second cavity inner wall of spacing groove both sides all is connected with transparent baffle through fixed screw, transparent baffle material is soft rubber material and transparent baffle middle all is provided with the opening that corresponds with the connecting rod.

Preferably, the input end of the electrostatic powder gun is fixedly connected with a material conveying pipe, and the outer side wall of the cover body is provided with a second through hole corresponding to the material conveying pipe.

Preferably, the edge positions of the front ends of the first rotary plate valve and the second rotary plate valve and the edge positions of the rear end of the third rotary plate valve are fixedly connected with rubber sealing rings.

The working principle is as follows: when powder coating is carried out, firstly, a steel member is hung on a hook, then a first motor is started to enable a first rotating shaft to rotate and drive the first rotating plate valve to rotate, the first rotating plate valve is opened, then the steel member is conveyed into a first cavity from a feeding port through a conveying belt, then the first rotating plate valve is closed, then a heating pipe is started through a heater to bake and preheat the steel member, meanwhile, an air pump is started to extract air with heat from the first cavity through an air extracting pipe and an air extracting port, then water vapor generated by baking in the air is filtered through a filter, enters the air extracting pump through a connecting pipe, hot air is conveyed into an air outlet pipe through a gas conveying pipe, finally, the hot air is blown out from an air outlet and blown onto the steel member, so that the steel member is secondarily preheated through the hot air, foreign matters on the steel member can be removed through the blown out hot air, then a second motor is started to enable a second rotating shaft to rotate and, opening the second rotary plate valve, conveying the preheated steel member into the second cavity from the transition port through the conveying belt, closing the second rotary plate valve, then the electrostatic powder gun is started to spray the powder coating with charges, so that the powder coating is attached to the steel member to finish coating, if the steel member is large in size, the fourth motor is started to enable the screw rod to rotate, so that the sliding block moves up and down on the screw rod, the slide block drives the connecting rod to move up and down along with the slide block, and the moving platform drives the electrostatic powder spraying gun to move up and down along with the slide block to spray the powder coating, so that the sprayed powder coating is more uniformly distributed, thereby make powder coating can be more even attached to on the steel member, start the third motor after the application is accomplished and make the third pivot rotate and drive the rotation of third rotary plate valve, open the third rotary plate valve, can be through the conveyer belt with the steel member after the application from the discharge gate output.

(III) advantageous effects

The invention provides a suspension type powder coating device. The method has the following beneficial effects:

1. according to the invention, the heating pipe can be used for baking and preheating the steel member entering the first cavity, the first rotary plate valve and the second rotary plate valve can be used for improving the sealing property of the first cavity and reducing heat loss, meanwhile, the air pump is started to extract air with heat from the first cavity through the air extraction pipe, water vapor generated by baking in the air is filtered through the filter, then hot air is input into the air outlet pipe through the air delivery pipe and then is sprayed out of the steel member from the air outlet, so that the steel member can be subjected to auxiliary preheating through the hot air, the preheating effect is improved, the efficiency is higher, foreign matters on the steel member can be removed through the hot air, and the occurrence of defects during powder coating is prevented.

2. According to the invention, the screw rod is driven to rotate by the fourth motor, the sliding block can move on the screw rod, and the moving platform is driven by the connecting rod to move up and down, so that the moving platform with the movable and static electric spraying crazy guns can move up and down during powder coating, and the sprayed powder coating is more uniformly distributed, and thus, the powder coating can be more uniformly attached to a large-size steel member, and the novel powder coating spraying device is worthy of great popularization.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view taken at A in FIG. 1;

FIG. 3 is an enlarged view at B of FIG. 1;

FIG. 4 is a side view of the present invention;

fig. 5 is a schematic view of the internal structure of the cover of the present invention.

Wherein, 1, a shell; 2. a first separator; 3. a feeding port; 4. a transition port; 5. a discharge port; 6. a first bearing housing; 7. a second bearing housing; 8. a first rotating shaft; 9. a first rotary plate valve; 10. a second rotating shaft; 11. a second rotary plate valve; 12. a third rotating shaft; 13. a third rotary plate valve; 14. a conveyor belt; 15. hooking; 16. a first motor; 17. a second motor; 18. an air extraction opening; 19. an air exhaust pipe; 20. a filter; 21. a connecting pipe; 22. an air pump; 23. heating a tube; 24. a limiting groove; 25. a transparent baffle; 26. fixing screws; 27. a first cavity; 28. a second cavity; 29. a third motor; 30. a drive shaft; 31. a first bevel gear; 32. a second bevel gear; 33. a first through hole; 34. a gas delivery pipe; 35. an air outlet pipe; 36. an air outlet; 37. a heater; 38. a cover body; 39. a delivery pipe; 40. a second separator; 41. a fourth motor; 42. a screw; 43. a third bearing seat; 44. a slider; 45. a connecting rod; 46. a mobile platform; 47. an electrostatic powder spray gun; 48. a second via.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b):

as shown in fig. 1-5, an embodiment of the present invention provides a suspension type powder coating apparatus, which includes a housing 1, a first partition plate 2 is fixedly connected to a middle position in the housing 1, a first cavity 27 is formed at a front end of the first partition plate 2 in the housing 1, a second cavity 28 is formed at a rear end of the first partition plate 2, heating pipes 23 are fixedly connected to inner walls of two sides in the first cavity 27, a suction pump 22 is fixedly connected to a front end of a top portion of the housing 1, an output end of the suction pump 22 is fixedly connected to a top end of a gas pipe 34, a top portion in the first cavity 27 is fixedly connected to a gas outlet pipe 35, a plurality of air outlets 36 are fixedly connected to a bottom portion of the gas pipe 35, a bottom end of the gas pipe 34 penetrates through the top portion of the housing 1 and is fixedly connected to a top portion of the gas outlet pipe 35, an input end of the suction pump 22 is fixedly connected, the bottom end of the air suction pipe 19 penetrates through the bottom of the side wall of the shell 1 and extends into the first cavity 27 and is fixedly connected with the air suction opening 18, when powder coating is carried out, a steel member firstly enters the first cavity 27, the heating pipe 23 is started to bake and preheat the steel member, meanwhile, the air suction pump 22 is started to suck air with heat from the first cavity 27 through the air suction pipe 19 and the air suction opening 18, then water vapor generated by baking in the air is filtered through the filter 20, then the air enters the air suction pump 22 through the connecting pipe 21, hot air is conveyed into the air outlet pipe 35 through the air conveying pipe 34, finally the air is blown out from the air outlet 36 and blown onto the steel member, so that the steel member is secondarily preheated through hot air, foreign matters on the steel member can be removed through the blown hot air, poor powder coating is prevented, two cover bodies 38 are fixedly connected to the outer wall of the shell 1 on one side of the second cavity, the inner upper part of the cover body 38 is fixedly connected with a second clapboard 40, the inner top part of the cover body 38 is fixedly connected with a fourth motor 41, the output end of the fourth motor 41 is fixedly connected with the top end of a screw rod 42, the bottom end of the screw rod 42 is rotatably connected with the inner bottom part of the cover body 38 through a third bearing seat 43, the outer diameter of the screw rod 42 is in threaded connection with a slide block 44, the front end and the rear end of the slide block 44 are in sliding connection with the inner wall of the cover body 38, the inner side of the slide block 44 is fixedly connected with one end of a connecting rod 45, the side wall of one side of the second cavity 28 is provided with two limiting grooves 24 corresponding to the cover body 38, the other end of the connecting rod 45 extends into the second cavity 28 through the limiting grooves 24 and is fixedly connected with a moving platform 46, the top part of the moving platform 46 is fixedly connected with an electrostatic powder spraying gun 47, when large-size steel, and can prevent slider 44 self from taking place the rotation through the sliding connection of cover body 38 and slider 44, just so can drive connecting rod 45 through slider 44 and also reciprocate thereupon, and drive electrostatic powder gun 47 through moving platform 46 and also reciprocate thereupon and carry out spraying of powder coating, make spun powder coating distribute more evenly, thereby make powder coating can be more even attached to on the steel member, just so can be at the even fire prevention coating of application on wind power factory building steel construction, improve the fire behavior of wind power factory building, the top of casing 1 front end and rear end one side and the equal fixedly connected with primary shaft bearing 6 in first baffle 2 front end one side top, the bottom of casing 1 front end and rear end one side and the equal fixedly connected with secondary shaft bearing 7 in first baffle 2 front end one side bottom, the first shaft bearing 6 and the second shaft bearing 7 internal rotation of casing 1 front end are connected with first pivot 8 and first pivot 8 opposite side fixedly connected with first pivot board 7 The valve 9, the first bearing seat 6 and the second bearing seat 7 at the front end of the first clapboard 2 are connected with the second rotating shaft 10 in a rotating way, the other side of the second rotating shaft 10 is fixedly connected with the second rotary plate valve 11, the first bearing seat 6 and the second bearing seat 7 at the rear end of the shell 1 are connected with the third rotating shaft 12 in a rotating way, the other side of the third rotating shaft 12 is fixedly connected with the third rotary plate valve 13, the first rotating shaft 8 can drive the first rotary plate valve 9 to rotate, the second rotating plate valve 11 can be driven to rotate by the second rotating shaft 10, the third rotating plate valve 13 can be driven to rotate by the third rotating shaft 12, so that the first rotary plate valve 9, the second rotary plate valve 11 and the third rotary plate valve 13 can be opened and closed, the sealing performance of the first cavity 27 can be enhanced by closing the first rotary plate valve 9 and the second rotary plate valve 11, the heat loss can be reduced, and the sealing performance of the second cavity 28 can be, thereby reducing the leakage of the powder coating and reducing the waste.

The front end of one side of the shell 1 is fixedly connected with a heater 37, the heating pipe 23 is connected with the heater 37 through a conducting wire, and the heater 37 can control the heating pipe 23 to be started and closed through the conducting wire.

The front end of the shell 1 is provided with a feeding port 3 corresponding to the first rotary plate valve 9, the first clapboard 2 is internally provided with a transition port 4 corresponding to the second rotary plate valve 11, the rear end of the shell 1 is provided with a discharge port 5 corresponding to the third rotary plate valve 13, the tops of the feeding port 3, the transition port 4 and the discharge port 5 are all provided with first through holes 33, the three first through holes 33 are internally provided with a through conveyor belt 14, the bottom of the conveyor belt 14 is fixedly connected with evenly distributed hooks 15, when powder coating is carried out, the steel member can be hung on the hook 15, then the steel member is conveyed from the feeding port 3 into the first cavity 27 through the conveyor belt 14 to be preheated, then the steel member is conveyed into the second cavity 28 from the transition port 4 for powder coating, and the coated steel member is conveyed out from the discharge port 5 after the powder coating is finished, wherein the first through hole 33 is used for enabling the conveyor belt 14 and the hook 15 to normally enter and exit the shell 1.

The top ends of the first rotating shaft 8, the second rotating shaft 10 and the third rotating shaft 12 all penetrate through the first bearing seat 6 to extend upwards and are fixedly connected with second bevel gears 32, the front end of the top of the shell 1 is fixedly connected with a first motor 16 corresponding to the first rotating shaft 8, the middle position of the top of the shell 1 is fixedly connected with a second motor 17 corresponding to the second rotating shaft 10, the rear end of the top of the shell 1 is fixedly connected with a third motor 29 corresponding to the third rotating shaft 12, transmission shafts 30 are arranged in the first motor 16, the second motor 17 and the third motor 29, one ends of the outer sides of the transmission shafts 30 are fixedly connected with first bevel gears 31, the first bevel gears 31 and the second bevel gears 32 are all in meshing connection, and the first motor 16, the second motor 17 and the third motor 29 are started to enable the transmission shafts 30 to rotate and drive the first bevel gears 31 to rotate so as to drive the second bevel gears 32 to rotate, so that, The second and

third shafts

10 and 12 are also rotated.

The inner walls of the second cavities 28 on the two sides of the limiting groove 24 are connected with transparent baffles 25 through fixing screws 26, the transparent baffles 25 are made of soft rubber, openings corresponding to the connecting rods 45 are formed in the middle of the transparent baffles 25, the transparent baffles 25 are used for preventing powder coating sprayed by the electrostatic powder spraying gun 47 from leaking out of the limiting groove 24 and causing waste, and the openings in the transparent baffles 25 are used for enabling the connecting rods 45 to freely move up and down in the transparent baffles 25.

The input ends of the electrostatic powder guns 47 are fixedly connected with material conveying pipes 39, the outer side walls of the cover bodies 38 are provided with second through holes 48 corresponding to the material conveying pipes 39, powder coatings can be conveyed into the electrostatic powder guns 47 through the material conveying pipes 39, and the second through holes 48 are used for enabling the material conveying pipes 39 to move up and down along with the electrostatic powder guns 47 when moving up and down.

The edge positions of the front ends of the first rotary plate valve 9 and the second rotary plate valve 11 and the rear end of the third rotary plate valve 13 are fixedly connected with rubber sealing rings, and the rubber sealing rings are used for enhancing the sealing performance of the first rotary plate valve 9, the second rotary plate valve 11 and the third rotary plate valve 13, so that the sealing effect is better.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a suspension type powder application device, includes casing (1), its characterized in that: the utility model discloses a powder coating machine, including casing (1), intermediate position fixedly connected with first baffle (2) in casing (1), first baffle (2) front end in casing (1) is first cavity (27) and first baffle (2) rear end is second cavity (28), the equal fixedly connected with heating pipe (23) of both sides inner wall in first cavity (27), heating pipe (23) when carrying out powder coating, toast the steel member that gets into in first cavity (27) and preheat, casing (1) top front end fixedly connected with aspiration pump (22), aspiration pump (22) output end fixed connection is on the top of gas-supply pipe (34), top fixedly connected with goes out tuber pipe (35) and goes out tuber pipe (35) bottom fixedly connected with a plurality of air outlet (36) in first cavity (27), gas-supply pipe (34) bottom runs through casing (1) top and fixed connection goes out tuber pipe (35) top, the air delivery pipe (34) conveys hot air into the air outlet pipe (35), the input end of the air pump (22) is fixedly connected with one end of the connecting pipe (21) and the other end of the connecting pipe (21) is fixedly connected with the rear end of the filter (20), the front end of the filter (20) is fixedly connected with the top end of the air pumping pipe (19), the bottom end of the air pumping pipe (19) penetrates through the bottom of the side wall of the shell (1) and extends into the first cavity (27) and is fixedly connected with an air pumping opening (18), the air pump (22) passes through the air pumping pipe (19) and the air pumping opening (18) to extract air with heat from the first cavity (27), the filter (20) filters out water vapor generated by baking in the air, the connecting pipe (21) enters the air pump (22), and the air delivery pipe (34) conveys hot air into the air outlet pipe (35), the air outlet (36) blows hot air onto the steel member; two cover bodies (38) of casing (1) outer wall fixedly connected with of second cavity (28) one side, the equal fixedly connected with second baffle (40) in upper portion in the cover body (38), the equal fixedly connected with fourth motor (41) in top in the cover body (38), the equal fixed connection in top of screw rod (42) and screw rod (42) bottom of output of fourth motor (41) all rotates through third bearing frame (43) and connects in cover body (38) bottom, the equal threaded connection in screw rod (42) external diameter department has slider (44) and slider (44) front and back both ends and cover body (38) inner wall to be sliding connection, the inboard equal fixed connection in one end of connecting rod (45) of slider (44), the lateral wall of second cavity (28) one side is provided with two spacing grooves (24) that correspond with cover body (38), the other end of connecting rod (45) all runs through spacing groove (24) and extend to second cavity (28) and fixedly connected with moving platform(s) (28) 46) The electrostatic powder spray gun is characterized in that an electrostatic powder spray gun (47) is fixedly connected to the top of the moving platform (46), a first bearing seat (6) is fixedly connected to the top of one side of the front end and the rear end of the shell (1) and the top of one side of the front end of the first partition plate (2), a second bearing seat (7) is fixedly connected to the bottom of one side of the front end and the rear end of the shell (1) and the bottom of one side of the front end of the first partition plate (2), a first rotating shaft (8) and a first rotating plate valve (9) are fixedly connected to the other side of the first rotating shaft (8) and the second rotating shaft (7) of the front end of the shell (1) are rotatably connected with a second rotating shaft (10) and a second rotating plate valve (11) are fixedly connected to the first bearing seat (6) and the second bearing seat (7) of the front end of the shell (1), and a second rotating shaft (10) Three pivot (12) and third pivot (12) opposite side fixedly connected with third rotary plate valve (13), second cavity (28) inner wall of spacing groove (24) both sides all is connected with transparent baffle (25) through set screw (26), all be provided with the opening that corresponds with connecting rod (45) in the middle of transparent baffle (25) material is soft rubber material and transparent baffle (25).

2. A suspended powder coating apparatus as claimed in claim 1, wherein: the front end of one side of the shell (1) is fixedly connected with a heater (37) and the heating pipe (23) is connected with the heater (37) through a lead.

3. A suspended powder coating apparatus as claimed in claim 1, wherein: casing (1) front end is provided with pan feeding mouth (3) that correspond with first rotary plate valve (9), be provided with in first baffle (2) and cross ferryboat (4) that correspond with second rotary plate valve (11), casing (1) rear end is provided with discharge gate (5) that correspond with third rotary plate valve (13), pan feeding mouth (3), cross ferryboat (4) and discharge gate (5) top all are provided with first through-hole (33) and three first through-hole (33) and are provided with conveyer belt (14) that run through, conveyer belt (14) bottom fixedly connected with evenly distributed's couple (15).

4. A suspended powder coating apparatus as claimed in claim 1, wherein: the top ends of the first rotating shaft (8), the second rotating shaft (10) and the third rotating shaft (12) penetrate through the first bearing seat (6) and extend upwards and are fixedly connected with the second bevel gear (32), the front end of the top of the shell (1) is fixedly connected with a first motor (16) corresponding to the first rotating shaft (8), the middle position of the top of the shell (1) is fixedly connected with a second motor (17) corresponding to the second rotating shaft (10), the rear end of the top of the shell (1) is fixedly connected with a third motor (29) corresponding to the third rotating shaft (12), a transmission shaft (30) and a first bevel gear (31) fixedly connected with the outer end of the transmission shaft (30) are arranged in the first motor (16), the second motor (17) and the third motor (29), and the first bevel gear (31) and the second bevel gear (32) are connected in a meshing mode.

5. A suspended powder coating apparatus as claimed in claim 1, wherein: the input end of the electrostatic powder gun (47) is fixedly connected with a material conveying pipe (39), and the outer side wall of the cover body (38) is provided with a second through hole (48) corresponding to the material conveying pipe (39).

6. A suspended powder coating apparatus as claimed in claim 1, wherein: the edge positions of the front ends of the first rotary plate valve (9) and the second rotary plate valve (11) and the rear end of the third rotary plate valve (13) are fixedly connected with rubber sealing rings.