CN213996341U - Environment-friendly welding seam powder spraying device - Google Patents

Abstract

The utility model relates to an environmental protection welding seam powder spray device, belong to the welding seam field of handling, an environmental protection welding seam powder spray device, the on-line screen storage device comprises a base, base one end fixedly connected with owner powder storehouse, the base is close to the spacing support of main powder storehouse position department fixedly connected with, base one end fixedly connected with arm of dusting is kept away from to spacing support, the base corresponds arm position department of dusting and is connected with the lower transport assembly who is used for carrying the metal cylinder, the cavity has been seted up in the arm of dusting, spacing support one end fixedly connected with nozzle is kept away from to the arm of dusting, the arm of dusting corresponds the equal fixedly connected with elastic separation blade in nozzle both sides position department, elastic separation blade all sets up along arm length direction of dusting, elastic separation blade is close to one side each other and all can the butt in the metal cylinder, two elastic separation blade and nozzle are formed with the powder spray groove. The method has the effects of improving the utilization rate of the anti-rust powder, reducing dust pollution and improving the environmental protection performance of the process.

Description

Environment-friendly welding seam powder spraying device

Technical Field

The application relates to the field of welding seam treatment, in particular to an environment-friendly welding seam powder spraying device.

Background

In the processing and manufacturing process of the paint bucket, the high-voltage resistance seam welder is used for welding a butt seam of a bent metal plate, and then the metal cylinder formed by welding enters an anti-rust processing step. The powder spraying arm sprays the antirust powder to the welding seam of the metal cylinder after the antirust powder is added with static electricity and heated, and the antirust powder is adhered to the welding seam by means of the static electricity and thermoplasticity of the antirust powder to form an antirust layer.

In the related art, chinese patent document No. CN1044981C discloses a process for coating plastic powder on the inner wall of a metal pipe, which comprises a spraying step and a baking step, wherein during spraying, a negative high voltage electrode is placed at the axis of the metal pipe, the plastic powder is sprayed from one port of the pipe, and air is extracted from the other port of the pipe. The plastic powder is sprayed on the inner wall of the pipe fitting, and the metal pipe with the plastic sprayed on the inner wall is manufactured after melting, leveling and curing during arch baking. The invention has simple operation and low cost, and the prepared plastic-sprayed metal pipe has good corrosion resistance.

Aiming at the related technologies, the inventor thinks that the open type spraying of the anti-rust powder is not beneficial to the recovery of the anti-rust powder, reduces the utilization rate of the anti-rust powder, causes dust pollution and destroys the workshop environment.

SUMMERY OF THE UTILITY MODEL

In order to improve the utilization rate of the antirust powder and reduce pollution, the application provides an environment-friendly welding seam powder spraying device.

The application provides an environmental protection welding seam powder spray device adopts following technical scheme:

an environment-friendly welding seam powder spraying device comprises a base, wherein one end of the base is fixedly connected with a main powder bin, the main powder bin is fixedly connected with a powder pump, the powder pump is fixedly connected with a powder conveying pipe, one end of the powder conveying pipe, far away from the powder pump, is fixedly connected with a nozzle, the main powder bin is fixedly connected with an air pump, one end of the air pump is fixedly connected with a gas pipe, far away from the air pump, is connected with the nozzle, the position, close to the main powder bin, of the base is fixedly connected with a limiting support, one end, far away from the base, of the limiting support is fixedly connected with a powder spraying arm, a cavity is formed in the powder spraying arm, the nozzle is fixedly connected with one end, far away from the limiting support, of the powder spraying arm, the position, corresponding to the powder spraying arm, of the base is connected with a lower conveying assembly for conveying a metal cylinder, elastic separation blades are fixedly connected to the positions, corresponding to the two sides of the nozzle, the elastic separation blades are arranged along the length direction of the powder spraying arm, one side, the elastic separation blades can abut against the metal cylinder, the two elastic baffle plates and the nozzle are provided with a powder spraying groove.

By adopting the scheme, the anti-rust powder sprayed from the nozzle is limited in the powder spraying groove by the elastic blocking piece, so that the distribution density of the anti-rust powder in the space is increased, the adhesion effect of the anti-rust powder on a welding seam is enhanced, dust generated by the anti-rust powder is reduced, and the waste of the anti-rust powder is reduced.

Preferably, the elastic baffle piece inclines from a position far away from the main powder bin to a position close to one end of the main powder bin.

Through adopting above-mentioned scheme, elasticity fender guides the metal cylinder to elasticity separation blade upper portion through the slope, and the equal butt in metal cylinder in one side that elasticity separation blade is close to each other, and the narrow and small space that the metal cylinder formed with the dusting groove further increases rust-preventive powder density.

Preferably, a heating rod is placed in the cavity of the powder spraying arm, the heating rod is arranged along the length direction of the powder spraying arm, and the powder conveying pipe and the gas conveying pipe are wound on the heating rod.

By adopting the scheme, the heating rod heats the powder conveying pipe and the gas conveying pipe, the anti-rust powder in the powder conveying pipe is heated to a thermoplastic state, the high-pressure gas in the gas conveying pipe is also heated, and the double-spiral structure increases the contact length of the pipeline and improves the heating efficiency.

Preferably, the base is close to main powder storehouse one end fixedly connected with recovery storehouse, retrieves first recovery tube of storehouse fixedly connected with and second recovery tube, retrieves storehouse and keeps away from main powder storehouse one side threaded connection and has the hose, and the hose is kept away from recovery storehouse one end fixedly connected with vacuum pump.

By adopting the scheme, the recovery bin utilizes the vacuum pump, the first recovery pipe and the second recovery pipe to recover redundant antirust powder near the powder spraying arm into the recovery bin, and the recovered antirust powder is added into the main powder bin for reuse after a certain amount of the antirust powder is accumulated.

Preferably, the hose is fixedly connected with an air filter element.

By adopting the above scheme, the air filter element filters the rust-proof powder particles in the exhaust air, reduces the dust density of the air, improves the production environment of a workshop, ensures the air quality of the processing workshop, and improves the comfort level of workers.

Preferably, retrieve storehouse bottom fixedly connected with third recovery tube, the third recovery tube is kept away from and is retrieved storehouse one end fixed connection in main powder storehouse, and storehouse and main powder storehouse are retrieved in the third recovery tube intercommunication, retrieve a plurality of springs of one side fixedly connected with in the storehouse of storehouse bottom, spring fixedly connected with shale shaker, shale shaker one side fixedly connected with vibrating motor.

By adopting the scheme, the vibrating screen is matched with the vibrating motor to screen the recycled antirust powder, so that large metal impurities mixed with welding seams in the recycled antirust powder are prevented, and the safety of a powder pump and a nozzle is protected.

Preferably, the powder spraying arm is fixedly connected with a first recovery nozzle at a position close to the elastic separation blade, the first recovery nozzle is fixedly connected with a first recovery pipe, and the first recovery pipe is communicated with the first recovery nozzle.

By adopting the scheme, the first recovery suction nozzle sucks the antirust powder flushed out of the powder spraying groove by the high-pressure gas near the powder spraying arm back to the first recovery pipe, and the antirust powder is recovered into the recovery bin and reused after being processed.

Preferably, the base corresponds the arm position department of dusting and is connected with the upset support, the upset support includes that fixed connection corresponds the pillar of the arm position department of dusting in the base, the first stopper of base one end fixedly connected with is kept away from to the pillar, first stopper is kept away from base one side and is rotated and be connected with the second stopper, the second stopper is close to arm one side fixedly connected with connecting rod of dusting, the connecting rod is the horizontality when the second stopper butt is in first stopper, the connecting rod corresponds the arm position department fixedly connected with apron of dusting, the apron is connected with the transport assembly, the apron corresponds nozzle position department fixedly connected with second recovery suction nozzle, second recovery suction nozzle fixed connection is in the second recovery tube, the second recovery tube communicates the second and retrieves the suction nozzle.

By adopting the scheme, the second recovery suction nozzle recovers the antirust powder at the elastic separation blade in the gap time conveyed by the two metal cylinders, and the rotation connection mode of the first limiting block and the second limiting block is convenient for a worker to turn over the cover plate, open and maintain the powder spraying arm and clean the nozzle.

Preferably, the upper conveying assembly comprises a first motor fixedly connected to one end of the cover plate far away from the main powder bin, one end of the cover plate far away from the limiting support is rotatably connected with a plurality of first driving belt wheels, one end of the cover plate close to the limiting support is rotatably connected with a plurality of first driven belt wheels, an output shaft of the first motor is fixedly connected to the first driving belt wheel close to the first motor, a first belt is sleeved on the first driving belt wheel and the first driven belt wheel together, and one side of the first belt, close to the powder spraying arm, abuts against one side of the metal barrel, far away from one side of the base.

By adopting the scheme, the upper conveying assembly conveys the metal cylinder on the production line stably and horizontally, so that the welding line passes through the nozzle of the powder spraying arm at a constant speed, and the welding line is uniformly sprayed with the anti-rust powder to form a uniform anti-rust layer.

Preferably, the lower conveying assembly comprises a conveying rack fixedly connected to the position of the base corresponding to the powder spraying arm, the conveying rack is far away from a second motor fixedly connected to one end of a limiting support, one end of the conveying rack is far away from the limiting support and is rotatably connected with a second driving pulley, an output shaft of the second motor is fixedly connected to a second driving pulley close to the second motor, one end of the conveying rack close to the limiting support is rotatably connected with a second driven pulley, the second driving pulley and the second driven pulley are jointly sleeved with a second belt, and one side of the second belt close to the metal cylinder is abutted to one side of the metal cylinder close to the base.

By adopting the scheme, the lower conveying assembly conveys the metal cylinder on the production line stably and horizontally, so that the welding line passes through the nozzle of the powder spraying arm at a constant speed, and the welding line is uniformly sprayed with the anti-rust powder to form a uniform anti-rust layer.

In conclusion, the invention has the following beneficial effects:

1. the powder spraying groove restrains large-area irregular scattering of the anti-rust powder, increases the density of the anti-rust powder in unit volume of air, and improves the adhesion effect of the anti-rust powder to a welding seam;

2. the plurality of recovery suction nozzles improve the utilization rate of the anti-rust powder, reduce dust pollution and improve the environmental protection of the processing technology.

Drawings

Fig. 1 is a schematic structural view of a metal can according to the background art of the present application;

FIG. 2 is a schematic structural diagram of an environment-friendly welding seam powder spraying device according to an embodiment of the application;

FIG. 3 is a sectional view of an environment-friendly welding line powder spraying device according to an embodiment of the application;

FIG. 4 is a schematic structural diagram of a gas pipe and a powder pipe according to an embodiment of the present application;

FIG. 5 is a cross-sectional view of a spray arm of an embodiment of the present application;

FIG. 6 is a cross-sectional view of a recovery tank of an embodiment of the present application.

Description of reference numerals: 1. a metal cylinder; 11. welding seams; 2. a base; 21. a main powder bin; 211. a powder conveying pipe; 212. a powder pump; 22. an air pump; 221. a gas delivery pipe; 23. a limiting bracket; 231. a support rod; 24. a recovery bin; 241. a first recovery pipe; 242. a second recovery pipe; 243. an air filter element; 244. a hose; 245. a vacuum pump; 246. a third recovery pipe; 247. a spring; 248. vibrating screen; 249. a vibration motor; 3. a powder spraying arm; 31. a high voltage electrostatic generator; 32. a cavity; 33. a nozzle; 34. a heating rod; 35. an elastic baffle plate; 36. a first recovery suction nozzle; 37. a powder spraying groove; 4. turning over the bracket; 41. a pillar; 42. a first stopper; 43. a second limiting block; 44. a connecting rod; 45. a cover plate; 46. a second recovery nozzle; 5. an upper conveying assembly; 51. a first motor; 52. a first driving pulley; 53. a first driven pulley; 54. a first belt; 6. a lower conveying assembly; 61 conveying rack; 62. a second motor; 63. a second driving pulley; 64. a second driven pulley; 65. a second belt.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

Referring to fig. 1, a high-voltage resistance seam welder processes a bent metal plate into a metal cylinder 1, a welding seam 11 is fixedly arranged on the metal cylinder 1, and the metal cylinder 1 is sleeved on a powder spraying arm 3.

The embodiment of the application discloses an environment-friendly welding seam powder spraying device. Referring to fig. 2 and 3, including base 2, base 2 one end fixedly connected with owner powder storehouse 21, main powder storehouse 21 top fixedly connected with powder conveying pipe 211, powder conveying pipe 211 and main powder storehouse 21 intercommunication, be connected with powder pump 212 on the powder conveying pipe 211, powder pump 212 one end fixedly connected with nozzle 33 is kept away from to powder conveying pipe 211, main powder storehouse 21 fixedly connected with air pump 22, air pump 22 fixedly connected with air pipe 221, air pump 22 one end fixed connection in nozzle 33 is kept away from to air pipe 221, base 2 is close to main powder storehouse 21 position fixedly connected with spacing support 23, spacing support 23 is kept away from main powder storehouse 21 and is close to base 2 position fixedly connected with support rod 231, base 2 one end fixedly connected with arm 3 that dusts is kept away from to spacing support 23.

Referring to fig. 2 and 4, one end of the powder spraying arm 3 close to the main powder bin 21 is fixedly connected with a high-voltage electrostatic generator 31, the powder spraying arm 3 is sleeved with a metal tube 1 to be treated, the metal tube 1 is slidably connected to the limiting bracket 23, a cavity 32 is formed in the powder spraying arm 3, a nozzle 33 is fixedly connected to one end of the powder spraying arm 3 far away from the limiting bracket 23, a heating rod 34 is placed in the cavity 32 of the powder spraying arm 3, the heating rod 34 is arranged along the length direction of the powder spraying arm 3, the powder conveying pipe 211 and the air conveying pipe 221 are wound on the heating rod 34 together, the powder conveying pipe 211 and the air conveying pipe 221 are of a double-helix structure, one end of the powder conveying pipe 211 and one end of the air conveying pipe 221 far away from the main powder bin 21 are fixedly connected to the nozzle 33 together, and the nozzle 33 is communicated with the powder conveying pipe 211 and the air conveying pipe 221. The powder pump 212 sends the antirust powder pump 212 in the main powder bin 21 to the powder conveying pipe 211, the air pump 22 pumps high-pressure air to the air conveying pipe 221, the heating rod 34 heats the powder conveying pipe 211 and the air conveying pipe 221, the antirust powder in the powder conveying pipe 211 is heated to a thermoplastic state, the high-pressure air in the air conveying pipe 221 is also heated, the heated high-pressure air and the antirust powder are mixed at the nozzle 33 and sprayed out from the nozzle 33, the antirust powder is uniformly attached to the welding seam 11 of the paint bucket, and the high-voltage electrostatic generator 31 generates static electricity to further help the antirust powder to be attached to the welding seam 11.

Referring to fig. 5, the powder spraying arm 3 is fixedly connected with elastic blocking pieces 35 corresponding to the two sides of the nozzle 33, the elastic blocking pieces 35 are arranged along the length direction of the powder spraying arm 3, the elastic blocking pieces 35 incline from the position far away from the main powder bin 21 to the position close to one end of the main powder bin 21, the elastic blocking pieces 35 can abut against the metal cylinder 1 when being close to one side, and the powder spraying grooves 37 are formed in the two elastic blocking pieces 35 and the nozzle 33. The elastic baffle 35 limits the antirust powder sprayed by the nozzle 33 in the powder spraying groove 37, so that the distribution density of the antirust powder in the space is increased, the adhesion effect of the antirust powder to the weld joint 11 is enhanced, dust generated by the antirust powder is reduced, and the waste of the antirust powder is reduced.

Referring to fig. 2 and 6, a recovery bin 24 is fixedly connected to one end of the base 2 close to the main powder bin 21, a first recovery pipe 241 and a second recovery pipe 242 are fixedly connected to the recovery bin 24, the first recovery pipe 241 and the second recovery pipe 242 are communicated with the recovery bin 24, an air filter 243 is connected to one side, away from the main powder bin 21, of the recovery bin 24 in a threaded manner, a hose 244 is connected to the air filter 243 in a threaded manner, the hose 244 is a corrugated pipe, a vacuum pump 245 is fixedly connected to one end, away from the air filter 243, of the hose 244, and the vacuum pump 245 is fixedly connected to the base 2. The recovery bin 24 recovers the redundant antirust powder near the powder spraying arm 3 by using a vacuum pump 245, a first recovery pipe 241 and a second recovery pipe 242, and an air filter 243 filters dust in the discharged air to ensure the air quality of a processing workshop.

Referring to fig. 2 and 6, a third recovery pipe 246 is fixedly connected to the bottom of the recovery bin 24, one end of the third recovery pipe 246, which is far away from the recovery bin 24, is fixedly connected to the main powder bin 21, the third recovery pipe 246 is communicated with the recovery bin 24 and the main powder bin 21, a plurality of springs 247 are fixedly connected to one side in the bin at the bottom of the recovery bin 24, a vibrating screen 248 is fixedly connected to the springs 247, and a vibrating motor 249 is fixedly connected to one side of the vibrating screen 248. The vibrating screen 248 is matched with the vibrating motor 249 to screen the recovered antirust powder, so that large metal impurities of the welding line 11 are prevented from being mixed in the recovered antirust powder, and the safety of the powder pump 212 and the nozzle 33 is protected.

Referring to fig. 2, 3 and 5, the powder spraying arm 3 is fixedly connected with a first recovery nozzle 36 at a position close to the elastic baffle 35, the first recovery nozzle 36 is fixedly connected to a first recovery pipe 241, and the first recovery pipe 241 is communicated with the first recovery nozzle 36. The first recovery suction nozzle 36 sucks the rust preventive powder flushed out of the powder spray groove 37 by the high-pressure air back to the first recovery pipe 241, and then the rust preventive powder is recovered to the recovery bin 24.

Referring to fig. 2 and 3, the base 2 is connected with the turnover support 4 corresponding to the position of the powder spraying arm 3, the turnover support 4 includes a pillar 41 fixedly connected to the base 2 corresponding to the position of the powder spraying arm 3, the pillar 41 is far away from the first limit block 42 fixedly connected to one end of the base 2, the first limit block 42 is rotatably connected to one side of the base 2 far away from the second limit block 43, the second limit block 43 is close to the connecting rod 44 fixedly connected to one side of the powder spraying arm 3, and the connecting rod 44 is in a horizontal state when the second limit block 43 abuts against the first limit block 42. The connecting rod 44 is fixedly connected with a cover plate 45 corresponding to the position of the powder spraying arm 3, the cover plate 45 is fixedly connected with a second recovery suction nozzle 46 corresponding to the position of the nozzle 33, the second recovery suction nozzle 46 is fixedly connected with a second recovery pipe 242, and the second recovery pipe 242 is communicated with the second recovery suction nozzle 46. The second recovery suction nozzle 46 recovers the rust preventive powder at the elastic baffle 35 in the interval time of conveying the two metal cylinders 1, and the first limiting block 42 and the second limiting block 43 are connected in a rotating mode, so that a worker can turn over the cover plate 45 to open and maintain the powder spraying arm 3 and the cleaning nozzle 33.

Referring to fig. 2 and 3, the cover plate 45 is connected with the upper conveying assembly 5, the upper conveying assembly 5 includes a first motor 51 fixedly connected to one end of the cover plate 45 away from the main powder bin 21, one end of the cover plate 45 away from the limiting support 23 is rotatably connected with a plurality of first driving pulleys 52, one end of the cover plate 45 close to the limiting support 23 is rotatably connected with a plurality of first driven pulleys 53, an output shaft of the first motor 51 is fixedly connected to the first driving pulley 52 close to the first motor 51, the first driving pulley 52 and the first driven pulley 53 are jointly sleeved with a first belt 54, one side of the first belt 54 close to the powder spraying arm 3 is abutted to one side of the metal cylinder 1 away from the base 2. Base 2 corresponds 3 position departments of arm of dusting and is connected with down conveying component 6, lower conveying component 6 includes fixed connection in base 2 corresponds the transport frame 61 of 3 position departments of arm of dusting, transport frame 61 keeps away from spacing support 23 one end fixedly connected with second motor 62, transport frame 61 keeps away from spacing support 23 one end and rotates and be connected with second driving pulley 63, the output shaft fixed connection of second motor 62 is in the second driving pulley 63 that is close to second motor 62, transport frame 61 is close to spacing support 23 one end and rotates and be connected with second driven pulley 64, second driving pulley 63 and second driven pulley 64 have cup jointed second belt 65 jointly, second belt 65 is close to metal cylinder 1 one side butt and is close to base 2 one side in metal cylinder 1. The upper conveying assembly 5 and the lower conveying assembly 6 are matched to stably and horizontally convey the metal cylinder 1 on a production line, so that the welding line 11 passes through the nozzle 33 of the powder spraying arm 3 at a constant speed, and the welding line 11 is uniformly sprayed with the anti-rust powder.

The implementation principle of the environment-friendly welding seam powder spraying device in the embodiment of the application is as follows: in the previous step, a high-voltage resistance seam welder is used for welding the butt joint position of the butt joint seam of the bent metal plate after the butt joint seam passes through the connecting position of the powder spraying arm 3 and the limiting bracket 23, and then the metal cylinder 1 formed by welding enters the processing step of the embodiment. After passing through the limiting bracket 23, the metal cylinder 1 is guided to the upper conveying component 5 and the lower conveying component 6 by the supporting rod 231, the metal cylinder 1 is continuously conveyed to the powder spraying arm 3 by the upper conveying component 5 and the lower conveying component 6, and the welding seam 11 is subjected to rust prevention by the powder spraying arm 3.

The powder conveying pipe 211 and the gas conveying pipe 221 convey the rust preventive powder and the high-pressure gas from the main powder bin 21 and the air pump 22 to a double-helix structure wound around the heating rod 34, respectively, and the rust preventive powder is heated to a thermoplastic state, mixed with the hot high-pressure gas in the nozzle 33, subjected to static electricity, and then sprayed out.

The metal barrel 1 continues to move forwards along the powder spraying arm 3 under the action of the upper conveying assembly 5 and the lower conveying assembly 6, climbs into a gap between the elastic baffle 35 and the first belt 54 through the inclined elastic baffle 35, the elastic baffle 35 and the nozzle 33 form a powder spraying groove 37, and then the nozzle 33 sprays anti-rust powder to the welding seam 11 under the surrounding of the powder spraying groove 37.

After spraying, the surplus rust preventive powder is deposited in the powder spraying groove 37, the second recovery suction nozzle 46 sucks the rust preventive powder at the position of the original powder spraying groove 37 back to the second recovery pipe 242 in the gap conveyed by the two metal cylinders 1, and the first recovery suction nozzle 36 sucks the rust preventive powder flushed out of the powder spraying groove 37 by the high-pressure gas back to the first recovery pipe 241. Finally, the recycled rust-preventive powder is collected into a recycling bin 24, impurities are removed through screening, and qualified rust-preventive powder is supplemented into a main powder bin 21. The vacuum pump 245 for providing recovery power filters air through the air filter 243 and then discharges the air out of the recovery bin 24, so that the rust preventive powder is prevented from polluting the workshop environment.

The arrangement of the powder spraying groove 37 restrains large-area irregular scattering of the rust preventive powder, increases the density of the rust preventive powder in the unit volume of air, improves the adhesion effect of the rust preventive powder to the weld joint 11, and simultaneously provides convenience for the recovery of the rust preventive powder by the second recovery suction nozzle 46. The powder spraying groove 37, the first recovery suction nozzle 36 and the second recovery suction nozzle 46 are matched with each other, so that the utilization rate of the rust-proof powder is improved, the dust pollution is reduced, and the environmental protection performance of the processing technology is improved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. An environment-friendly welding seam powder spraying device comprises a base (2), one end of the base (2) is fixedly connected with a main powder bin (21), the main powder bin (21) is fixedly connected with a powder pump (212), the powder pump (212) is fixedly connected with a powder conveying pipe (211), one end, far away from the powder pump (212), of the powder conveying pipe (211) is fixedly connected with a nozzle (33), the main powder bin (21) is fixedly connected with an air pump (22), the air pump (22) is fixedly connected with an air conveying pipe (221), one end, far away from the air pump (22), of the air conveying pipe (221) is connected with the nozzle (33), a position, close to the main powder bin (21), of the base (2) is fixedly connected with a limiting support (23), one end, far away from the base (2), of the limiting support (23) is fixedly connected with a powder spraying arm (3), a cavity (32) is formed in the powder spraying arm (3), and, the method is characterized in that: base (2) correspond arm (3) position department of dusting and are connected with lower conveyor components (6) that are used for carrying canister (1), the arm (3) of dusting corresponds equal fixed connection elasticity separation blade (35) of nozzle (33) both sides position department, elasticity separation blade (35) all set up along arm (3) length direction of dusting, elasticity separation blade (35) are close to one side each other and all can butt in canister (1), two elasticity separation blades (35) and nozzle (33) are formed with and spout powder groove (37).

2. The environment-friendly weld joint powder spraying device according to claim 1, characterized in that: the elastic blocking piece (35) inclines from a position far away from the main powder bin (21) to a position close to one end of the main powder bin (21).

3. The environment-friendly weld joint powder spraying device according to claim 1, characterized in that: a heating rod (34) is placed in a cavity (32) of the powder spraying arm (3), the heating rod (34) is arranged along the length direction of the powder spraying arm (3), and a powder conveying pipe (211) and a gas conveying pipe (221) are wound on the heating rod (34).

4. The environment-friendly weld joint powder spraying device according to claim 1, characterized in that: the powder recycling bin is characterized in that the base (2) is close to one end of the main powder bin (21) and is fixedly connected with a recycling bin (24), the recycling bin (24) is fixedly connected with a first recycling pipe (241) and a second recycling pipe (242), one side, away from the main powder bin (21), of the recycling bin (24) is in threaded connection with a hose (244), and the hose (244) is away from one end of the recycling bin (24) and is fixedly connected with a vacuum pump (245).

5. The environment-friendly weld joint powder spraying device according to claim 4, characterized in that: an air filter element (243) is fixedly connected to the hose (244).

6. The environment-friendly weld joint powder spraying device according to claim 4, characterized in that: retrieve storehouse (24) bottom fixedly connected with third recovery tube (246), third recovery tube (246) are kept away from and are retrieved storehouse (24) one end fixed connection in main powder storehouse (21), and third recovery tube (246) intercommunication is retrieved storehouse (24) and main powder storehouse (21), retrieves a plurality of springs of one side fixedly connected with (247) in storehouse (24) bottom storehouse, spring (247) fixedly connected with shale shaker (248), shale shaker (248) one side fixedly connected with vibrating motor (249).

7. The environment-friendly weld joint powder spraying device according to claim 4, characterized in that: the powder spraying arm (3) is close to the elastic separation blade (35) and is fixedly connected with a first recovery suction nozzle (36), the first recovery suction nozzle (36) is fixedly connected to a first recovery pipe (241), and the first recovery pipe (241) is communicated with the first recovery suction nozzle (36).

8. The environment-friendly weld joint powder spraying device according to claim 1, characterized in that: the base (2) is connected with a turnover support (4) corresponding to the position of the powder spraying arm (3), the turnover support (4) comprises a pillar (41) fixedly connected to the base (2) corresponding to the position of the powder spraying arm (3), one end, far away from the base (2), of the pillar (41) is fixedly connected with a first limiting block (42), one side, far away from the base (2), of the first limiting block (42) is rotatably connected with a second limiting block (43), one side, close to the powder spraying arm (3), of the second limiting block (43) is fixedly connected with a connecting rod (44), when the second limiting block (43) abuts against the first limiting block (42), the connecting rod (44) is in a horizontal state, a cover plate (45) is fixedly connected to the position of the powder spraying arm (3) corresponding to the connecting rod (44), the cover plate (45) is connected with an upper conveying assembly (5), and a second recovery suction nozzle (46) is fixedly connected to the position, corresponding to the nozzle (33), of the cover plate (45), the second recovery suction nozzle (46) is fixedly connected to the second recovery pipe (242), and the second recovery pipe (242) is communicated with the second recovery suction nozzle (46).

9. The environment-friendly weld joint powder spraying device according to claim 8, characterized in that: go up conveying subassembly (5) and keep away from first motor (51) of main powder storehouse (21) one end including fixed connection in apron (45), spacing support (23) one end is kept away from in apron (45) rotates and is connected with a plurality of first driving pulley (52), apron (45) are close to spacing support (23) one end and rotate and are connected with a plurality of first driven pulleys (53), the output shaft fixed connection of first motor (51) is in first driving pulley (52) of being close to first motor (51), first driving pulley (52) and first driven pulley (53) have cup jointed first belt (54) jointly, first belt (54) are close to arm (3) one side butt of dusting and are kept away from base (2) one side in metal cylinder (1).

10. The environment-friendly weld joint powder spraying device according to claim 1, characterized in that: lower conveying component (6) are including fixed connection in base (2) corresponding transport frame (61) of dusting arm (3) position department, spacing support (23) one end fixedly connected with second motor (62) are kept away from in transport frame (61), spacing support (23) one end rotation is kept away from in transport frame (61) is connected with second driving pulley (63), the output shaft fixed connection of second motor (62) is in second driving pulley (63) that is close to second motor (62), transport frame (61) are close to spacing support (23) one end rotation and are connected with second driven pulley (64), second driving pulley (63) and second driven pulley (64) have cup jointed second belt (65) jointly, second belt (65) are close to metal cylinder (1) one side butt and are close to base (2) one side in metal cylinder (1).

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