CN111644309A

CN111644309A - Rotary spraying equipment for steel pipe production and processing and spraying method thereof

Info

Publication number: CN111644309A
Application number: CN202010445681.8A
Authority: CN
Inventors: 朱道庭
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-25
Filing date: 2020-05-25
Publication date: 2020-09-11

Abstract

The invention discloses rotary spraying equipment for steel pipe production and processing and a spraying method thereof. According to the rotary spraying equipment for steel pipe production and processing and the spraying method thereof, the steel pipe fixing structure is redesigned, the integral machining process of feeding, paint spraying, drying, blanking and re-feeding of a steel pipe is realized through the structure rotation inside the equipment, the operation is convenient, residual paint liquid inside the steel pipe can be cleaned when the paint spraying operation is carried out, the structural design is more reasonable, and the paint spraying efficiency of the steel pipe is greatly improved.

Description

Rotary spraying equipment for steel pipe production and processing and spraying method thereof

Technical Field

The invention relates to the technical field of steel pipe processing, in particular to rotary spraying equipment for steel pipe production and processing and a spraying method thereof.

Background

The application of steel pipe in life and industrial production is all very common, although structural strength is high itself, but long-time outdoor use, its surface is easy to corrode and influence self intensity and the steadiness of relevant building, consequently among the prior art, in the steel pipe production process, need carry out the operation of spraying paint to it, can play the decorative effect on the one hand, more important on the one hand can effectually delay the corrosion of steel pipe by a wide margin, consequently the spraying equipment of steel pipe is very important, but current steel pipe spraying equipment has following problem when in actual use:

in order to ensure the even of steel pipe effect of spraying paint, current paint spraying apparatus can carry out the operation of spraying paint to single steel pipe in same batch mostly, the process flow is single, and do not possess perfect supplementary solidification function, workman's continuity of not being convenient for, the whole machining efficiency that leads to the steel pipe is lower, when the operation of spraying paint goes on, the paint liquid that does not solidify and stop other positions in the equipment can't be cleared up by synchronization, need the workman to concentrate the clearance after equipment is shut down, influence the quality that other steel pipes sprayed paint easily.

Disclosure of Invention

The invention aims to provide rotary spraying equipment for steel pipe production and processing and a spraying method thereof, and aims to solve the problems that in order to ensure the uniformity of the paint spraying effect of steel pipes, the conventional paint spraying equipment mostly performs paint spraying operation on single steel pipes in the same batch, has a single processing flow, does not have a perfect auxiliary solidification function, is inconvenient for continuous operation of workers, causes the overall processing efficiency of the steel pipes to be low, cannot synchronously clean paint liquid which is not solidified and stays at other positions in the equipment while the paint spraying operation is performed, needs the workers to intensively clean the equipment after the equipment is stopped, and is easy to influence the paint spraying quality of other steel pipes.

In order to achieve the purpose, the invention provides the following technical scheme: a rotary spraying device for steel pipe production and processing comprises a shell, a motor, a paint spraying pipe, a paint supplying pipe and an air supplying pipe, wherein a rotating plate arranged on a motor shaft is arranged in the shell, the three are arranged coaxially, the motor shaft is connected with the motor arranged on the back of the shell, at least three notches are arranged at a medium angle of the rotating plate, 1 fixing rod is arranged in each notch, the axis of each fixing rod is positioned on the radius line of the rotating plate, protruding blocks distributed at equal angles are fixed in the inner wall of the shell, the inner ends of the fixing rods are rotatably connected with the rotating plate, a first rotary cover and a second rotary cover are arranged at the outer ends of the fixing rods and are respectively connected with an outer shaft and an inner shaft, the paint spraying pipe and the air spraying pipe which are distributed in an inclined mode are arranged on the upper left side and the lower left side of the shell and are positioned on the opposite sides of the protruding blocks, and the paint spraying pipe and the air spraying pipe are respectively connected with the paint supplying pipe and the air supplying pipe, and a cleaning pipe is arranged inside the shell.

Preferably, the tail end of the outer shaft is rotatably installed in the fixing rod, the outer shaft is in threaded connection with the pressing plate through threads on the outer surface of the outer shaft, the pressing plate is slidably connected into the square hole in the fixing rod, and the surface of the pressing plate is attached to the air bag fixed in the fixing rod.

Preferably, the gasbag is linked together through the connecting pipe with clamp plate sliding connection and sealed box, and sealed box seal covers the inboard at the flexure strip, and the equal angle seal of flexure strip is fixed at the top avris of dead lever to the flexure strip after the inflation is engaged with the connection status that the protruding piece is mutually.

Preferably, the interior axle runs through and rotates and install in the inside of outer axle, and the lower half section and the lantern ring threaded connection of interior axle, and the lantern ring passes through down tube and cardboard and links to each other, and the both ends of down tube are articulated with the surface of the lantern ring and cardboard respectively, and cardboard sliding connection is in the lateral wall of dead lever.

Preferably, the clearance pipe is located between paint spraying pipe and the air spray pipe, and its left end just runs through the lateral wall of shell for the slope distributes downwards, and the avris integration of clearance pipe is provided with the scraper blade of arc structure to the tail end laminating of scraper blade is on the surface of commentaries on classics board, and the top is located under the intraductal open-ended of clearance, and the left section of clearance pipe is for crooked distribution and be linked together with the installation pipe.

Preferably, the installation pipe is fixed on the side of the housing, the fan blade shaft provided with fan blades is rotatably installed inside the installation pipe, and the tail end of the fan blade shaft is connected with the motor shaft through a belt pulley mechanism.

A spraying method of rotary spraying equipment for producing and processing steel pipes comprises the following steps:

the method comprises the following steps: the steel pipe is directly sleeved on the fixed rod from the opening on the right side of the shell, when the steel pipe moves to a proper position, the first rotary cover and the second rotary cover are rotated, and the plurality of clamping plates which are distributed at equal angles are driven to move outwards until the outer surfaces of the clamping plates are tightly attached to the inner wall of the steel pipe, so that the steel pipe is fixed;

step two: the motor runs and drives the rotating plate to rotate through the motor shaft, after the elastic sheet is expanded and deformed, a similar gear ring structure is formed on the periphery of the fixed rod and can be in a meshed state with the protruding block, and the fixed steel pipe can be driven to be in a self-rotating state synchronously under the meshing transmission action;

step three: and (3) reversely rotating the first rotary cover and the second rotary cover, taking out the processed steel pipe, and then reinstalling a new steel pipe according to the first step, thereby achieving the purpose of finishing the flow processing of the steel pipe in one device.

Compared with the prior art, the invention has the beneficial effects that: according to the rotary spraying equipment for steel pipe production and processing and the spraying method thereof, a steel pipe fixing structure is redesigned, an integrated processing flow of loading, spraying, drying, blanking and re-loading of a steel pipe is realized through the structural rotation inside the equipment, the operation is convenient and fast, residual paint liquid inside the steel pipe can be cleaned while the paint spraying operation is carried out, the structural design is more reasonable, and the paint spraying efficiency of the steel pipe is greatly improved;

1. due to the structural design of the inner shaft and the outer shaft in the fixed rod, a user can conveniently rotate the second spiral cover to enable the clamping plate in the fixed rod to slide out of the fixed rod under the action of the thread transmission of the lantern ring and the pushing action of the inclined rod, so that the steel pipe can be tightly supported and fixed from the inner wall, and the steel pipe can be well fixed and clamped no matter a round steel pipe or other special-shaped section steel pipes;

furthermore, due to the structural design of the air bag and the elastic sheet, a user can conveniently slide the pressing plate under the thread transmission and extrude the air bag by rotating the first rotary cover, so that the elastic sheet can be directly expanded by the extrusion of air pressure, the outer end of the fixed rod forms a circle of adjustable gear ring structure, the expanded elastic sheet can drive the fixed rod for fixing the steel pipe to be in a self-rotation state by meshing with the protruding block and revolution of the fixed rod and the rotary plate, the uniform coverage of paint spraying and the uniform drying of wind power are realized, and the processing efficiency of the steel pipe is greatly improved;

2. the structural design of clearance pipe self can utilize the laminating of scraper blade and commentaries on classics board, and the rotation action of commentaries on classics board self, to the mistake spout the lacquer liquid on changeing the board carry out timely strike off the processing and in time arrange the lacquer liquid and lead to the clearance pipe under the guide of self arc structure, and the use of fan blade axle, can utilize the rotation of changeing board and motor shaft, utilize the venturi principle, be in the negative pressure state in making the clearance pipe, the lacquer liquid that makes in the clearance pipe can in time be discharged and avoid solidifying.

Drawings

FIG. 1 is a schematic cross-sectional view of the present invention;

FIG. 2 is a schematic cross-sectional view of the housing of the present invention;

FIG. 3 is a schematic cross-sectional view of a fixing rod according to the present invention;

FIG. 4 is a schematic diagram of the structure of the movable platen of the present invention;

FIG. 5 is a schematic side sectional view of a fixing rod according to the present invention;

FIG. 6 is a schematic front view of the present invention;

FIG. 7 is a schematic view of a partial top cross-sectional configuration of the present invention;

FIG. 8 is a schematic side view of the cleaning tube of the present invention.

In the figure: 1. a housing; 2. rotating the plate; 3. a motor shaft; 4. an electric motor; 5. fixing the rod; 51. a first screw cap; 511. an outer shaft; 512. pressing a plate; 513. an air bag; 514. a connecting pipe; 515. a sealed box; 516. an elastic sheet; 52. a second screw cap; 521. an inner shaft; 522. a collar; 523. a diagonal bar; 524. clamping a plate; 6. a raised block; 7. a paint spray pipe; 8. a wind spraying pipe; 9. a paint supply pipe; 10. a gas supply pipe; 11. cleaning the pipe; 111. a squeegee; 112. installing a pipe; 113. a fan blade shaft; 114. a belt pulley mechanism.

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.

Referring to fig. 1-8, the present invention provides a technical solution: a rotary spraying device for steel tube production and processing comprises a shell 1, a rotating plate 2, a motor shaft 3, a motor 4, fixing rods 5, a first rotating cover 51, an outer shaft 511, a pressing plate 512, an air bag 513, a connecting pipe 514, a sealed box 515, an elastic sheet 516, a second rotating cover 52, an inner shaft 521, a lantern ring 522, an inclined rod 523, a clamping plate 524, a protruding block 6, a paint spraying pipe 7, a paint spraying pipe 8, a paint supplying pipe 9, an air supplying pipe 10, a cleaning pipe 11, a scraping plate 111, a mounting pipe 112, a fan blade shaft 113 and a belt pulley mechanism 114, wherein the rotating plate 2 mounted on the motor shaft 3 is arranged inside the shell 1, the three are coaxially arranged, the motor shaft 3 is connected with the motor 4 mounted on the back of the shell 1, at least three notches are arranged at equal angles in the

rotating plate

2, 1 fixing rod 5 is mounted in each notch, the axis of the fixing rod 5 is positioned on the radius line of the rotating plate 2, the protruding blocks 6 distributed at equal angles are fixed in the inner, the inner of dead lever 5 rotates and changes board 2 and rotate to be connected, and the outer end of dead lever 5 is provided with first spiral cover 51 and second spiral cover 52, both are connected with outer axle 511 and interior axle 521 respectively, the pipe 7 that sprays paint and the tuber pipe 8 of slope distribution are installed to the inner wall of shell 1, both are located the upper left side and the left side below of shell 1 respectively and are located the opposition side of protruding piece 6, and spray paint pipe 7 and the tuber pipe 8 of spraying paint are connected with paint supply pipe 9 and air supply pipe 10 respectively, the internally mounted of shell 1 has clearance pipe 11.

The tail end of the outer shaft 511 is rotatably installed inside the fixing rod 5, the outer shaft 511 is in threaded connection with the pressing plate 512 through threads on the outer surface thereof, the pressing plate 512 is slidably connected in a square hole inside the fixing rod 5, the surface of the pressing plate 512 is attached to the air bag 513 fixed inside the fixing rod 5, the air bag 513 is communicated with the sealing box 515 through a connecting pipe 514 in sliding connection with the pressing plate 512, the sealing box 515 is hermetically covered on the inner side of the elastic sheet 516, the elastic sheet 516 is fixed on the top end side of the fixing rod 5 in an equiangular sealing manner, and the expanded elastic sheet 516 is in a meshed connection state with the protruding block 6, the first rotary cover 51 is rotated, at this time, the outer shaft 511 in fig. 4 is rotated synchronously, and under the effect of threaded transmission, the pressing plate 512 is driven to synchronously move and press the air bag 513, so that the air pressure in the air bag 513 enters the sealing box 515 under the, thus, under the action of the air pressure, the elastic pieces 516 begin to expand as shown in FIG. 4.

The inner shaft 521 penetrates through the outer shaft 511 and is rotatably mounted inside the outer shaft, the lower half section of the inner shaft 521 is in threaded connection with the sleeve ring 522, the sleeve ring 522 is connected with the clamping plate 524 through the diagonal rod 523, two ends of the diagonal rod 523 are hinged to the surfaces of the sleeve ring 522 and the clamping plate 524 respectively, the clamping plate 524 is connected to the side wall of the fixing rod 5 in a sliding mode, the second spiral cover 52 can be rotated, the inner shaft 521 in fig. 3 can be in a rotating state at the moment, the sleeve ring 522 can move along the axial direction of the sleeve ring 522 under the action of threaded transmission, the inclination angle of the diagonal rod 523 can be changed correspondingly at the moment, and the clamping plates 524 which are distributed at equal angles are driven to move outwards until the outer surface of the clamping plates.

The cleaning tube 11 is located between the paint spraying tube 7 and the air spraying tube 8, the left end of the cleaning tube is obliquely distributed downwards and penetrates through the side wall of the housing 1, the side of the cleaning tube 11 is integrally provided with a scraping plate 111 with an arc structure, the tail end of the scraping plate 111 is attached to the surface of the rotating plate 2, the top end of the cleaning tube 11 is located right below the opening on the inner side of the cleaning tube 11, the left section of the cleaning tube 11 is distributed in a bending way and is communicated with the mounting tube 112, the mounting tube 112 is fixed on the side of the housing 1, the mounting tube 112 is internally and rotatably provided with a fan blade shaft 113 provided with fan blades, the tail end of the fan blade shaft 113 is connected with the motor shaft 3 through a belt pulley mechanism 114, the motor shaft 3 can drive the fan blade shaft 113 to be synchronously in a rotating state through the belt pulley mechanism 114, and the rotating speed of the fan blade shaft 113 is faster because the diameter of the belt pulley on the motor shaft, the high-speed rotation of the fan blade shaft 113 blows high-speed airflow into the cleaning pipe 11 which is obliquely distributed under the action of the fan blades at the end of the fan blade shaft, so that the right half section of the cleaning pipe 11 is in a negative pressure state by taking the mounting pipe 112 and the connecting point of the mounting pipe as a boundary point, paint liquid is correspondingly adhered to the rotating plate 2 in the paint spraying process, and as shown in fig. 7-8, the paint liquid on the surface of the rotating plate flows into the cleaning pipe 11 under the scraping and guiding action of the scraper blade 111 and is discharged under the action of the negative pressure, and the efficient real-time cleaning is realized.

the method comprises the following steps: the steel pipe is directly sleeved on the fixed rod 5 from the opening on the right side of the shell 1, when the steel pipe moves to a proper position, the first spiral cover 51 and the second spiral cover 52 are rotated, and the plurality of clamping plates 524 which are distributed at equal angles are driven to move outwards until the outer surface of the clamping plates is tightly attached to the inner wall of the steel pipe, so that the steel pipe is fixed;

step two: the motor 4 runs and drives the rotating plate 2 to rotate through the motor shaft 3, after the elastic sheet 516 expands and deforms, a similar gear ring structure is formed on the periphery of the fixed rod 5 and can be in a meshed state with the protruding block 6, and the fixed steel pipe can be driven to be in a self-rotating state synchronously under the meshing transmission action, in the process, the paint spraying operation is continuously carried out until the motor shaft 3 stops rotating, and then the steel pipe can rotate to the position of the air spraying pipe 8, so that the wind power auxiliary drying operation is completed;

step three: and (3) reversely rotating the first screw cap 51 and the second screw cap 52, taking out the processed steel pipe, and then reinstalling a new steel pipe according to the first step, thereby achieving the purpose of finishing the process processing of the steel pipe in one device.

The working principle is as follows: as shown in fig. 1, all can carry out the installation of steel pipe under the condition of manual operation on the dead lever 5 in each commentaries on classics board 2, the steel pipe is after accomplishing the installation, motor 4 passes through motor shaft 3 and drives commentaries on classics board 2 invariable anticlockwise rotation of intermittent type, then spray paint and dry operation are carried out respectively when rotating to spray paint pipe 7 and spray gun 8 department in fig. 6, after accomplishing above-mentioned operation, rotate again to the shown right side opening part in the shell 1, carry out the unloading and repeated material loading can, thereby accomplish the material loading of steel pipe, spray paint, it is dry, this complete flow of unloading and material loading, the concrete principle is as follows:

firstly, the method comprises the following steps: feeding;

firstly, the steel pipe can be directly sleeved on the fixed rod 5 from the opening on the right side of the shell 1, when the steel pipe moves to a proper position, the first screw cap 51 is rotated, and the outer shaft 511 in fig. 4 is rotated synchronously, and the pressing plate 512 is driven to move synchronously and press the air bag 513 by the screw transmission, the air pressure in the air bag 513 is introduced into the sealed box 515 by the conduction of the connection tube 514, therefore, under the action of the air pressure, the elastic piece 516 will begin to expand as shown in fig. 4, and then the second cap 52 can be rotated, at which time the inner shaft 521 in fig. 3 is in a rotating state, and the collar 522 will move along its axial direction under the action of the screw drive, at which time the inclination angle of the inclined rod 523 will change accordingly, the clamping plates 524 distributed at equal angles are driven to move outwards until the outer surfaces of the clamping plates are tightly attached to the inner wall of the steel pipe, and then the steel pipe can be fixed;

II, secondly: spraying paint and drying;

the motor 4 can be in a running state and drives the rotating plate 2 to rotate through the motor shaft 3, so that the rotating plate 2 and a plurality of fixing rods 5 can be in a revolution state around the center of the shell 1 synchronously, when the fixing rod 5 which is originally provided with steel pipes at the lower left corner in the figure 1 rotates to the right side and is in a horizontal state, the motor shaft 3 stops rotating under the control of the motor 4, at the moment, the first step of steel pipe installation is repeated, after the elastic sheet 516 in the figure 4 expands and deforms, a similar gear ring structure can be formed at the periphery of the fixing rod 5 and can be in a meshed state with the protruding block 6 shown in the figures 1-2, so that the fixing rod 5 can drive the fixed steel pipes to be in a rotation state synchronously under the meshing transmission effect during revolution, in the process, the paint spraying operation is continuously carried out until the motor shaft 3 stops rotating, and then the fixing rod can rotate to the position of the air spraying pipe 8, the wind power auxiliary drying operation is completed, while rotating, the motor shaft 3 drives the fan blade shaft 113 to be in a rotating state synchronously through the belt pulley mechanism 114, and the diameter of the belt pulley on the motor shaft 3 is larger than that of the belt pulley on the fan blade shaft 113, so that the rotating speed of the fan blade shaft 113 is faster, at this time, as shown in fig. 7, the high-speed rotation of the fan blade shaft 113 blows high-speed airflow into the cleaning pipe 11 which is obliquely distributed under the action of the fan blade at the end of the fan blade, so that the right half section of the cleaning pipe 11 (taking the connecting point of the mounting pipe 112 as a boundary point) is in a negative pressure state, and paint liquid correspondingly adheres to the rotating plate 2 in the paint spraying process, as shown in fig. 7-8, the paint liquid on the surface of the rotating plate flows into the cleaning pipe 11 under the scraping guiding action of the scraper 111, and is discharged under the negative pressure action, so as to realize the;

thirdly, the method comprises the following steps: blanking and repeatedly feeding;

when the fixing rod 5 with the steel pipes is returned to the horizontal state on the right side in fig. 1 again, the steel pipes are subjected to painting and drying operations, so that the workers can reversely rotate the first screw cap 51 and the second screw cap 52, and after the processed steel pipes are taken out, new steel pipes are installed again according to the first step, so that the purpose of completing the process processing of the steel pipes in one device is achieved.

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 steel pipe production and processing is with rotatory spraying equipment, includes shell (1), motor (4), paint spraying pipe (7), air spray pipe (8), supplies lacquer pipe (9) and air supply pipe (10), its characterized in that: the motor shaft (3) is connected with a motor (4) installed on the back of the shell (1), at least three gaps are formed in the middle angle of the rotating plate (2), 1 fixing rod (5) is installed in each gap, the axis of each fixing rod (5) is located on the radius line of the rotating plate (2), the inner wall of the shell (1) is fixed with protruding blocks (6) distributed at equal angles, the inner end of each fixing rod (5) rotates to be connected with the rotating plate (2) in a rotating mode, the outer end of each fixing rod (5) is provided with a first spiral cover (51) and a second spiral cover (52) which are respectively connected with the outer shaft (511) and the inner shaft (521), and the inner wall of the shell (1) is provided with a paint spraying pipe (7) and a wind spraying pipe (8) which are distributed in an inclined mode, the two are respectively positioned at the upper left side and the lower left side of the shell (1) and at the opposite sides of the convex blocks (6), the paint spraying pipe (7) and the air spraying pipe (8) are respectively connected with the paint supplying pipe (9) and the air supplying pipe (10), and the cleaning pipe (11) is arranged inside the shell (1).

2. The rotary spraying equipment for steel pipe production and processing according to claim 1, wherein the rotary spraying equipment comprises: the tail end of the outer shaft (511) is rotatably arranged in the fixing rod (5), the outer shaft (511) is in threaded connection with the pressing plate (512) through threads on the outer surface of the outer shaft, the pressing plate (512) is in sliding connection with a square hole in the fixing rod (5), and the surface of the pressing plate (512) is attached to an air bag (513) fixed in the fixing rod (5).

3. The rotary spraying equipment for steel pipe production and processing according to claim 2, wherein the rotary spraying equipment comprises: the air bag (513) is communicated with a sealed box (515) through a connecting pipe (514) in sliding connection with the pressing plate (512), the sealed box (515) covers the inner side of the elastic sheet (516) in a sealed mode, the elastic sheet (516) is fixed on the side of the top end of the fixing rod (5) in an equal-angle sealing mode, and the expanded elastic sheet (516) and the protruding block (6) are in a meshed connection state.

4. The rotary spraying equipment for steel pipe production and processing according to claim 1, wherein the rotary spraying equipment comprises: the inner shaft (521) penetrates through and is rotatably mounted inside the outer shaft (511), the lower half section of the inner shaft (521) is in threaded connection with the lantern ring (522), the lantern ring (522) is connected with the clamping plate (524) through the diagonal rod (523), two ends of the diagonal rod (523) are hinged to the surfaces of the lantern ring (522) and the clamping plate (524) respectively, and the clamping plate (524) is connected to the side wall of the fixing rod (5) in a sliding mode.

5. The rotary spraying equipment for steel pipe production and processing according to claim 1, wherein the rotary spraying equipment comprises: cleaning tube (11) are located between spray paint pipe (7) and spray paint pipe (8), and its left end distributes down and runs through the lateral wall of shell (1) for the slope, and the avris integration of cleaning tube (11) is provided with scraper blade (111) of arc structure to the tail end laminating of scraper blade (111) is on the surface of commentaries on classics board (2), and the top is located cleaning tube (11) inboard open-ended under, and the left section of cleaning tube (11) is for crooked distribution and be linked together with installation pipe (112).

6. The rotary spraying equipment for steel pipe production and processing according to claim 5, wherein the rotary spraying equipment comprises: the installation pipe (112) is fixed on the side of the shell (1), the fan blade shaft (113) provided with fan blades is rotatably installed inside the installation pipe (112), and the tail end of the fan blade shaft (113) is connected with the motor shaft (3) through a belt wheel mechanism (114).

7. The spraying method of the rotary spraying equipment for producing and processing the steel pipe is characterized by comprising the following steps of: the spraying method comprises the following steps:

the method comprises the following steps: the steel pipe is directly sleeved on the fixed rod (5) from an opening on the right side of the shell (1), when the steel pipe moves to a proper position, the first spiral cover (51) and the second spiral cover (52) are rotated, and the clamping plates (524) which are distributed at equal angles are driven to move outwards until the outer surface of each clamping plate is tightly attached to the inner wall of the steel pipe, so that the steel pipe is fixed;

step two: the motor (4) runs and drives the rotating plate (2) to rotate through the motor shaft (3), after the elastic sheet (516) expands and deforms, a similar gear ring structure is formed on the periphery of the fixed rod (5), and can be in a meshed state with the protruding block (6), and can drive the fixed steel pipe to synchronously rotate under the meshing transmission action, in the process, the paint spraying operation is continuously carried out until the motor shaft (3) stops rotating, and then the fixed steel pipe can rotate to the position of the air spraying pipe (8), so that the wind power auxiliary drying operation is completed;

step three: and (3) reversely rotating the first spiral cover (51) and the second spiral cover (52), taking out the processed steel pipe, and then reinstalling a new steel pipe according to the step one, thereby realizing the purpose of finishing the process processing of the steel pipe in one device.