Rotary spraying device for metal pipe body

Abstract

The invention belongs to the technical field of spraying devices, and particularly relates to a metal pipe body rotary spraying device which comprises a driving assembly, a material carrying assembly and a spraying assembly. The driving assembly is of a rectangular open structure, the material carrying assembly is slidably connected to the bottom of the driving assembly, the spraying assembly is slidably connected to the top of the driving assembly, the sliding direction of the material carrying assembly and the sliding direction of the spraying assembly are arranged in a staggered mode, and a plurality of sets of pipe bodies are movably connected to the top of the material carrying assembly in a clamped mode. The material carrying assembly slides out of one side wall of the driving assembly, the multiple sets of pipe bodies are placed on the top of the material carrying assembly, then when the material carrying assembly slides into the driving assembly, the spraying assembly is used for conducting rotary spraying operation on the pipe bodies at the bottom, and the uniformity of contact between the surfaces of the pipe bodies and paint is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of spraying devices, and in particular relates to a metal pipe rotating spraying device. Background Art

[0002] When spraying anti-corrosion materials on the pipe body, a spraying device is used. The spraying device mainly includes a spray head and a driving mechanism that can rotate the spray head. The spray head sprays the anti-corrosion coating on the inner wall of the pipe body during the rotation process. The existing spraying device is difficult to complete the spraying work due to the small size of the water hole of some specifications of special pipes, resulting in a product quality qualification rate of oil special pipe coating products far lower than that of normal water holes.

[0003] After searching, in the prior art, Chinese patent publication number CN213762462U, authorization announcement date: 2021-07-23, discloses a pipe body spraying device, including a base, on which two brackets are symmetrically and slidably installed laterally, and a second motor is provided on the base for driving the two brackets to slide in opposite directions, and a clamping disk is rotatably installed on the inner side of the bracket, and a first motor for driving the clamping disk to rotate is provided on one of the brackets, and three supporting rollers are radially slidably installed on the clamping disk, and the three supporting rollers are evenly distributed, and an adjusting member for slidingly adjusting the three supporting rollers is provided on the clamping disk, and a frame is fixedly installed on the rear end of the base, and a paint spraying pipe is longitudinally slidably provided on the frame, and the paint spraying pipe is located directly above the central axis of the two clamping disks, and a plurality of spray heads with electric valves are evenly distributed axially on the bottom of the paint spraying pipe, and the length of the paint spraying pipe is the same as the maximum distance between the two clamping disks.

[0004] However, the equipment still has the following defects: although it can be installed on pipes of different diameters, greatly improving the versatility of the paint spraying equipment, the nozzle at the bottom of the paint spraying pipe can easily cause the surface of the pipe to be not in uniform contact with the paint during the painting process, and the rotation spraying cannot be performed, so the spraying effect is not ideal. Summary of the invention

[0005] In view of the above problems, the present invention provides a metal tube rotary spraying device, comprising a driving assembly, a material carrying assembly and a spraying assembly; the driving assembly is a rectangular open structure, the material carrying assembly is slidably connected to the bottom of the driving assembly, the spraying assembly is slidably connected to the top of the driving assembly, the sliding directions of the material carrying assembly and the spraying assembly are staggered, and the top of the material carrying assembly is movably connected with a plurality of groups of tubes;

[0006] The material loading assembly slides out from a side wall of the driving assembly, and a plurality of tubes are placed on the top of the material loading assembly. When the material loading assembly slides into the driving assembly, the spraying assembly is used to perform a rotational spraying operation on the tubes at the bottom.

[0007] Furthermore, the driving assembly includes a first transmission mechanism and a second transmission mechanism; the first transmission mechanism is located at the bottom of the second transmission mechanism, and the second transmission mechanism and the first transmission mechanism are a rectangular structure spliced ​​together, the output end of the first transmission mechanism is transmission connected to the spraying assembly, and the output end of the second transmission mechanism is transmission connected to the loading assembly.

[0008] Furthermore, the first transmission mechanism includes a first shell and several groups of conical linkage blocks; the top of the first shell is an open structure, and first electric push rods are fixedly connected to both sides of the inner wall of the first shell, one end of several groups of the conical linkage blocks are embedded and installed with micro motors, and the output ends of the micro motors are transmission-connected to the output ends of the first electric push rods, and two groups of guide grooves are opened on one side wall of the first shell, and blanking plates are rotatably connected in the two groups of guide grooves.

[0009] Furthermore, a plurality of groups of guide rollers are arranged on the surface of the blanking plate, two groups of hollow grooves are opened on the outer wall of the first shell and on the side away from the guide rollers, a first motor is fixedly connected to the outer wall of the first shell and on the side close to the hollow grooves, a first screw rod is rotatably connected to the inner wall of the first shell, and one end of the first screw rod is transmission-connected to the output end of the first motor.

[0010] Furthermore, the second transmission mechanism includes a second shell; the bottom of the second shell is an open structure, one side wall of the second shell is fixedly connected to two groups of second motors, the inner wall of the second shell is rotatably connected to two groups of second screw rods, and one end of the two groups of second screw rods are transmission connected to the output end of the second motor.

[0011] Furthermore, the loading assembly includes a third shell and a discharge bracket; a linkage block is fixedly connected to one side wall of the third shell, and an internal threaded hole is provided on the surface of the linkage block, and the internal threaded hole is threadedly connected to the first screw rod; a storage cavity is provided on the top of the third shell, and an inclined panel is provided on the inner wall of the storage cavity near the top, and both ends of the inclined panel are fixedly connected to the inner wall of the storage cavity with limit pins, and two groups of second electric push rods are fixedly connected to the bottom end of the inner wall of the storage cavity, and the two groups of second electric push rods are vertically arranged at the bottom of the limit pin.

[0012] Furthermore, the discharge bracket is slidably connected to the inner wall of the storage chamber, a limit groove is provided at the bottom of the discharge bracket, and the limit groove is movably fitted and connected to the outer wall of the inclined panel, two groups of limit blocks are fixedly connected to the bottom of the limit groove, and the bottoms of the two groups of limit blocks are transmission connected to the output ends of the second electric push rod, and a plurality of groups of pipe grooves are provided at the top of the discharge bracket, and the plurality of groups of pipe grooves are movably clamped at the bottom of the pipe body.

[0013] Furthermore, the spraying assembly includes a horizontal plate; a third motor is fixedly connected to the top of the horizontal plate, and screw blocks are fixedly connected to the top of the horizontal plate near the corners, and the screw blocks are threadedly connected to the second screw rod, and the output end of the third motor is transmission-connected with a linkage mechanism, and a testing mechanism is fixedly connected to one side of the bottom of the horizontal plate, and the connection between the testing mechanism and the horizontal plate is set at a right angle.

[0014] Furthermore, the linkage mechanism includes a fourth shell; the fourth shell is an open annular structure, a plurality of groups of nozzles are embedded and installed on the bottom of the fourth shell, and the plurality of groups of nozzles are arranged in an annular array with the central axis of the fourth shell as the center, two groups of one-way valves are embedded and installed on the inner wall of the fourth shell, a material guide shell is fixed and connected between the two groups of one-way valves, a paint storage tank is arranged on the top of the material guide shell, and a metering pump is arranged between the bottom of the paint storage tank and the top of the material guide shell, a cover plate is arranged on the top of the fourth shell, and an air pump is arranged on the top of the cover plate, the output end of the air pump extends into the fourth shell, and the top of the paint storage tank is transmission-connected to the output end of the third motor.

[0015] Furthermore, the testing mechanism includes a fifth shell; a plurality of groups of third electric push rods are arranged at the top of the inner wall of the fifth shell, and the output ends of the plurality of groups of third electric push rods are transmission-connected with a paint film meter, which passes through the bottom of the fifth shell and extends to the surface of the tube body.

[0016] The beneficial effects of the present invention are:

[0017] 1. The loading assembly slides out from one side wall of the driving assembly, and several groups of tubes are placed on the top of the loading assembly. When the loading assembly is slid into the driving assembly, the spraying assembly is used to perform a rotational spraying operation on the bottom tube, thereby improving the uniformity of the contact between the tube surface and the paint.

[0018] 2. The linkage block is threadedly connected to the first screw rod through the internal threaded hole, so that the third shell is slidably connected in the hollow slide groove. When the pipe body in the pipe groove is sprayed, the output ends of the two groups of second electric push rods drive the limit blocks to make the discharge bracket fall and extend into the storage cavity, so that the inclined plate extends into several groups of pipe grooves to push the pipe body upward, and then rolls with the guide roller to automatically discharge the material, so that the discharge efficiency of the pipe body is improved.

[0019] 3. The paint in the paint storage tank is metered and controlled by a metering pump and then added to the material guide housing. The material guide housing then guides the stirred paint into the fourth housing through a one-way valve. The air pump continuously works to apply pressure to the paint and spray it out from the nozzle, spraying paint evenly on different positions on the surface of the pipe body to improve the uniformity of the paint spraying on the pipe body.

[0020] 4. The paint film meter is driven to fall close to the surface of the tube body by the third electric push rod. After the tube body is painted, the metering pump stops conveying paint to the material guide shell. When the air pump continues to work, the gas is injected into the fourth shell and the nozzle again. While the fourth shell and the nozzle are automatically cleaned, the gas can be blown to the tube body again through the nozzle to accelerate the drying of the paint on its surface. The paint film meter is used to detect the thickness of the paint on the tube body after air drying to ensure the painting quality of the tube body.

[0021] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A schematic diagram of the structure of a metal tube rotary spraying device according to an embodiment of the present invention is shown;

[0024] Figure 2 A schematic diagram of the structure of a driving component according to an embodiment of the present invention is shown;

[0025] Figure 3 A schematic structural diagram of a first transmission mechanism according to an embodiment of the present invention is shown;

[0026] Figure 4 A schematic diagram showing the structure of a second transmission mechanism according to an embodiment of the present invention is shown;

[0027] Figure 5 A schematic structural diagram of a material loading assembly according to an embodiment of the present invention is shown;

[0028] Figure 6 It shows a schematic diagram of the structure explosion of the material loading assembly according to an embodiment of the present invention;

[0029] Figure 7 A schematic diagram of the structure of a spray assembly according to an embodiment of the present invention is shown;

[0030] Figure 8 A schematic diagram of the structure of the linkage mechanism according to an embodiment of the present invention is shown;

[0031] Fig. 9A schematic structural diagram of a testing mechanism according to an embodiment of the present invention is shown.

[0032] In the figure: 1. driving assembly; 11. first transmission mechanism; 111. first housing; 112. first electric push rod; 113. conical linkage block; 114. guide groove; 115. unloading plate; 116. guide roller; 117. hollow slide; 118. first motor; 119. first screw rod; 12. second transmission mechanism; 121. second housing; 122. second motor; 123. second screw rod; 2. loading assembly; 21. third housing; 22. linkage block; 23. internal threaded hole; 24. unloading bracket; 25. storage chamber; 26. Inclined plate; 27, limit pin; 28, second electric push rod; 29, limit slot; 210, limit block; 211, pipe slot; 3, spray assembly; 31, cross plate; 32, third motor; 33, screw block; 34, linkage mechanism; 341, fourth shell; 342, nozzle; 343, material guide shell; 344, one-way valve; 345, paint storage tank; 346, metering pump; 347, cover plate; 348, air pump; 35, testing mechanism; 351, fifth shell; 352, third electric push rod; 353, paint film meter; 4, tube body. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] The embodiment of the present invention provides a metal pipe rotary spraying device, comprising a driving component 1, a material carrying component 2 and a spraying component 3; illustratively, as Figure 1 shown.

[0035] The driving component 1 is a rectangular open structure, the loading component 2 is slidably connected to the bottom of the driving component 1, and the spraying component 3 is slidably connected to the top of the driving component 1. The sliding directions of the loading component 2 and the spraying component 3 are staggered, and the top of the loading component 2 is movably connected with several groups of tube bodies 4.

[0036] Specifically, the loading assembly 2 slides out from a side wall of the driving assembly 1 to place a plurality of groups of tube bodies 4 on the top of the loading assembly 2. When the loading assembly 2 slides into the driving assembly 1, the spraying assembly 3 is used to perform a rotational spraying operation on the tube bodies 4 at the bottom.

[0037] The driving assembly 1 includes a first transmission mechanism 11 and a second transmission mechanism 12; illustratively, Figure 2 shown.

[0038] The first transmission mechanism 11 is located at the bottom of the second transmission mechanism 12, and the second transmission mechanism 12 and the first transmission mechanism 11 are spliced ​​into a rectangular structure. The output end of the first transmission mechanism 11 is transmission connected to the spraying component 3, and the output end of the second transmission mechanism 12 is transmission connected to the loading component 2.

[0039] The first transmission mechanism 11 includes a first housing 111 and a plurality of groups of conical linkage blocks 113; illustratively, Figure 3 shown.

[0040] The top of the first shell 111 is an open structure, and first electric push rods 112 are fixedly connected to both sides of the inner wall of the first shell 111, and one end of several groups of the conical linkage blocks 113 is embedded with a micro motor, and the output end of the micro motor is transmission connected to the output end of the first electric push rod 112, and two groups of guide grooves 114 are opened on one side wall of the first shell 111, and blanking plates 115 are rotatably connected in the two groups of guide grooves 114, and several groups of guide rollers 116 are arranged on the surface of the blanking plate 115, and two groups of hollow chute 117 are opened on the outer wall of the first shell 111 and away from the guide roller 116, and the outer wall of the first shell 111 and the side close to the hollow chute 117 are fixedly connected with a first motor 118, and the inner wall of the first shell 111 is rotatably connected with a first screw rod 119, and one end of the first screw rod 119 is transmission connected to the output end of the first motor 118.

[0041] Specifically, the output ends of the first electric push rods 112 on both sides of the inner wall of the first housing 111 are used to drive a plurality of groups of conical linkage blocks 113 to move horizontally, so that the plurality of groups of conical linkage blocks 113 are moved to the ends of the tube body 4, and the ends are fastened and clamped, and then the micro motor in each group of conical linkage blocks 113 is continuously rotated to rotate the fastened and clamped tube body 4, so as to achieve the function of rotating spraying of the tube body 4 during the spraying process;

[0042] When the blanking plate 115 rotates in the guide groove 114, one end of the blanking plate 115 moves to different heights to match shelves of different heights, thereby improving the compatibility range when blanking the sprayed tube body 4;

[0043] The output end of the first motor 118 drives the first screw rod 119 to rotate, so as to drive the material-carrying assembly 2 to slide out of the hollow slide groove 117, so that the material-carrying assembly 2 is in a free loading state.

[0044] The second transmission mechanism 12 includes a second housing 121; illustratively, Figure 4 shown.

[0045] The bottom of the second shell 121 is an open structure, and two groups of second motors 122 are fixedly connected to one side wall of the second shell 121. Two groups of second screw rods 123 are rotatably connected to the inner wall of the second shell 121, and one end of the two groups of second screw rods 123 are transmission connected to the output end of the second motor 122.

[0046] Specifically, the output end of the second motor 122 drives the second screw rod 123, so that the spray assembly 3 threadedly connected to the second screw rod 123 moves horizontally along the direction of the second screw rod 123, so as to spray different positions on the surface of the tube body 4 during the rotation process.

[0047] The material loading assembly 2 includes a third housing 21 and a material placing support 24; illustratively, as Figure 5 shown.

[0048] A linkage block 22 is fixedly connected to one side wall of the third housing 21, and an internal threaded hole 23 is provided on the surface of the linkage block 22, and the internal threaded hole 23 is threadedly connected to the first screw rod 119. A storage chamber 25 is provided on the top of the third housing 21, and an inclined panel 26 is provided on the inner wall of the storage chamber 25 and near the top, and both ends of the inclined panel 26 are fixedly connected to the inner wall of the storage chamber 25 with limit pins 27, and two sets of second electric push rods 28 are fixedly connected to the bottom end of the inner wall of the storage chamber 25, and the two sets of second electric push rods 28 They are all vertically arranged at the bottom of the limit pin 27, the discharge bracket 24 is slidably connected to the inner wall of the storage chamber 25, the bottom of the discharge bracket 24 is provided with a limit groove 29, and the limit groove 29 is movably fitted and connected to the outer wall of the inclined panel 26, the bottom of the limit groove 29 is fixedly connected with two groups of limit blocks 210, and the bottoms of the two groups of limit blocks 210 are transmission connected to the output end of the second electric push rod 28, and the top of the discharge bracket 24 is provided with a plurality of groups of pipe grooves 211, and the plurality of groups of pipe grooves 211 are movably clamped at the bottom of the pipe body 4.

[0049] Specifically, the linkage block 22 is threadedly connected to the first screw rod 119 using the internal threaded hole 23, so that the third shell 21 is slidably connected in the hollow slide groove 117. When the tube body 4 in the tube groove 211 is sprayed, the output ends of the two groups of second electric push rods 28 drive the limit block 210 to make the discharge bracket 24 fall and extend into the storage cavity 25, so that the inclined plate 26 extends into several groups of tube grooves 211 to push the tube body 4 upward, and then rolls in contact with the guide roller 116 to automatically discharge the material.

[0050] The spraying assembly 3 includes a horizontal plate 31; illustratively, as Figure 7 shown.

[0051] The top of the transverse plate 31 is fixedly connected to a third motor 32, and the top of the transverse plate 31 near the corner is fixedly connected to a screw block 33, and the screw blocks 33 are threadedly connected to the second screw rod 123. The output end of the third motor 32 is transmission-connected to a linkage mechanism 34, and a testing mechanism 35 is fixedly connected to one side of the bottom of the transverse plate 31, and the connection between the testing mechanism 35 and the transverse plate 31 is arranged at a right angle.

[0052] The linkage mechanism 34 includes a fourth housing 341; illustratively, as Figure 8 shown.

[0053] The fourth shell 341 is an open annular structure, and a plurality of groups of nozzles 342 are embedded and installed at the bottom of the fourth shell 341, and the plurality of groups of nozzles 342 are arranged in an annular array with the central axis of the fourth shell 341 as the center, and two groups of one-way valves 344 are embedded and installed on the inner wall of the fourth shell 341, and a material guide shell 343 is fixed and connected between the two groups of one-way valves 344, and a paint storage tank 345 is arranged on the top of the material guide shell 343, and a metering pump 346 is arranged between the bottom of the paint storage tank 345 and the top of the material guide shell 343, a cover plate 347 is arranged on the top of the fourth shell 341, and an air pump 348 is arranged on the top of the cover plate 347, and the output end of the air pump 348 extends into the fourth shell 341, and the top of the paint storage tank 345 is drivingly connected to the output end of the third motor 32.

[0054] Furthermore, an electric stirring rod is provided in the material guiding shell 343 .

[0055] Specifically, the output end of the air pump 348 injects gas into the fourth housing 341, and discharges the gas downward through a plurality of nozzles 342, and drives the fourth housing 341 to rotate while the third motor 32 rotates at a high speed, and while the screw block 33 is threadedly connected to the second screw rod 123, the plurality of nozzles 342 during the rotation process blow the gas at different positions on the surface of the unpainted pipe body 4, thoroughly cleaning the surface of the steel pipe, removing dust, grease and other debris, and ensuring a smooth surface;

[0056] The metering pump 346 controls the metering of the paint in the paint storage tank 345 and then adds it to the material guide shell 343. The material guide shell 343 then guides the stirred paint into the fourth shell 341 through the one-way valve 344. The air pump 348 continues to work, and the paint is pressurized and sprayed out from the nozzle 342, so that different positions on the surface of the tube body 4 are evenly sprayed with paint.

[0057] The testing mechanism 35 includes a fifth housing 351; illustratively, as Fig. 9 shown.

[0058] A plurality of third electric push rods 352 are arranged at the top of the inner wall of the fifth shell 351 , and the output ends of the plurality of third electric push rods 352 are all transmission-connected with a paint film meter 353 , which passes through the bottom of the fifth shell 351 and extends to the surface of the tube body 4 .

[0059] Specifically, the third electric push rod 352 drives the paint film meter 353 to fall close to the surface of the tube body 4, and is used to stop the metering pump 346 from conveying paint into the material guide shell 343 after the painting of the tube body 4 is completed. When the air pump 348 continues to work, the gas is injected into the fourth shell 341 and the nozzle 342 again. While automatically cleaning the fourth shell 341 and the nozzle 342, the gas can be blown to the tube body 4 again through the nozzle 342 to accelerate the drying of the paint on its surface, and cooperate with the paint film meter 353 to detect the thickness of the paint on the surface of the tube body 4 after air-drying to ensure the painting quality of the tube body 4.

[0060] The working principle of the metal tube rotary spraying device proposed by the embodiment of the present invention is as follows:

[0061] The linkage block 22 is threadedly connected with the first screw rod 119 through the internal threaded hole 23, so that the third housing 21 is slidably connected in the hollow slide groove 117. When the pipe body 4 in the pipe groove 211 is sprayed, the output ends of the two groups of second electric push rods 28 drive the limit block 210 to make the material discharge bracket 24 fall and extend into the storage cavity 25, so that the inclined plate 26 extends into the plurality of groups of pipe grooves 211 to push the pipe body 4 upward, and then rolls with the guide roller 116 to automatically discharge the material;

[0062] The gas is injected into the fourth housing 341 through the output end of the air pump 348, and the gas is discharged downward through the plurality of nozzles 342. When the third motor 32 rotates at a high speed, the fourth housing 341 is driven to rotate. When the screw block 33 is threadedly connected with the second screw rod 123, the plurality of nozzles 342 during the rotation process blow the gas at different positions on the surface of the unpainted pipe body 4, thoroughly cleaning the surface of the steel pipe, removing dust, grease and other debris, and ensuring a smooth surface.

[0063] The paint in the paint storage tank 345 is metered and controlled by the metering pump 346 and then added to the guide housing 343. The guide housing 343 then guides the stirred paint into the fourth housing 341 through the one-way valve 344. The air pump 348 continuously works to apply pressure to the paint and spray it out from the nozzle 342, so that different positions on the surface of the tube body 4 are evenly sprayed with paint.

[0064] The paint film meter 353 is driven by the third electric push rod 352 to fall close to the surface of the tube body 4. After the tube body 4 is painted, the metering pump 346 stops conveying paint into the material guide shell 343. When the air pump 348 continues to work, the gas is injected into the fourth shell 341 and the nozzle 342 again. While automatically cleaning the fourth shell 341 and the nozzle 342, the gas can be blown to the tube body 4 again through the nozzle 342 to accelerate the drying of the paint on its surface, and the paint film meter 353 is used to detect the thickness of the paint on the surface of the tube body 4 after air-drying to ensure the painting quality of the tube body 4.

[0065] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein; and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A metal tube rotary spraying device, characterized in that: The invention comprises a driving component (1), a material-carrying component (2) and a spraying component (3); the driving component (1) is a rectangular open structure, the material-carrying component (2) is slidably connected to the bottom of the driving component (1), the spraying component (3) is slidably connected to the top of the driving component (1), the sliding directions of the material-carrying component (2) and the spraying component (3) are arranged in a staggered manner, and the top of the material-carrying component (2) is movably connected with a plurality of groups of tube bodies (4); The material carrying component (2) slides out from a side wall of the driving component (1), and a plurality of groups of tube bodies (4) are placed on the top of the material carrying component (2). When the material carrying component (2) is slid into the driving component (1), the spraying component (3) is used to perform a rotational spraying operation on the tube bodies (4) at the bottom.

2. The metal tube rotary spraying device according to claim 1, characterized in that: The driving assembly (1) comprises a first transmission mechanism (11) and a second transmission mechanism (12); the first transmission mechanism (11) is located at the bottom of the second transmission mechanism (12), and the second transmission mechanism (12) and the first transmission mechanism (11) are a rectangular structure formed by splicing; the output end of the first transmission mechanism (11) is transmission-connected to the spraying assembly (3), and the output end of the second transmission mechanism (12) is transmission-connected to the loading assembly (2).

3. The metal tube rotary spraying device according to claim 2, characterized in that: The first transmission mechanism (11) comprises a first shell (111) and a plurality of groups of conical linkage blocks (113); the top of the first shell (111) is an open structure, first electric push rods (112) are fixedly connected to both sides of the inner wall of the first shell (111), micro motors are embedded and installed at one end of the plurality of groups of conical linkage blocks (113), and the output ends of the micro motors are transmission-connected to the output ends of the first electric push rods (112), and two groups of guide grooves (114) are provided on one side wall of the first shell (111), and blanking plates (115) are rotatably connected in the two groups of guide grooves (114).

4. The metal tube rotary spraying device according to claim 3, characterized in that: The surface of the blanking plate (115) is provided with a plurality of groups of guide rollers (116); the outer wall of the first shell (111) and the side away from the guide rollers (116) are provided with two groups of hollow slide grooves (117); the outer wall of the first shell (111) and the side close to the hollow slide grooves (117) are fixedly connected with a first motor (118); the inner wall of the first shell (111) is rotatably connected with a first screw rod (119), and one end of the first screw rod (119) is transmission-connected to the output end of the first motor (118).

5. The metal tube rotary spraying device according to claim 2, characterized in that: The second transmission mechanism (12) comprises a second shell (121); the bottom of the second shell (121) is an open structure; one side wall of the second shell (121) is fixedly connected to two groups of second motors (122); the inner wall of the second shell (121) is rotatably connected to two groups of second screw rods (123); and one end of the two groups of second screw rods (123) are both transmission-connected to the output end of the second motor (122).

6. The metal tube rotary spraying device according to claim 1, characterized in that: The loading assembly (2) comprises a third shell (21) and a material discharge bracket (24); a linkage block (22) is fixedly connected to one side wall of the third shell (21), and an internal threaded hole (23) is provided on the surface of the linkage block (22), and the internal threaded hole (23) is threadedly connected to the first screw rod (119); a storage chamber (25) is provided at the top of the third shell (21), and an inclined panel (26) is provided on the inner wall of the storage chamber (25) and near the top, and both ends of the inclined panel (26) and the inner wall of the storage chamber (25) are fixedly connected to limit pins (27); two groups of second electric push rods (28) are fixedly connected to the bottom end of the inner wall of the storage chamber (25), and the two groups of second electric push rods (28) are vertically arranged at the bottom of the limit pin (27).

7. The metal tube rotary spraying device according to claim 6, characterized in that: The material discharging bracket (24) is slidably connected to the inner wall of the storage chamber (25); a limiting groove (29) is provided at the bottom of the material discharging bracket (24), and the limiting groove (29) is movably connected to the outer wall of the inclined panel (26); two groups of limiting blocks (210) are fixedly connected to the bottom of the limiting groove (29), and the bottoms of the two groups of limiting blocks (210) are both transmission-connected to the output end of the second electric push rod (28); a plurality of groups of pipe fitting grooves (211) are provided at the top of the material discharging bracket (24), and the plurality of groups of pipe fitting grooves (211) are movably connected to the bottom of the pipe body (4).

8. The metal tube rotary spraying device according to claim 1, characterized in that: The spraying assembly (3) comprises a transverse plate (31); a third motor (32) is fixedly connected to the top of the transverse plate (31); screw blocks (33) are fixedly connected to the top of the transverse plate (31) near the corners; the screw blocks (33) are threadedly connected to the second screw rod (123); the output end of the third motor (32) is transmission-connected to a linkage mechanism (34); a testing mechanism (35) is fixedly connected to one side of the bottom of the transverse plate (31); and the connection between the testing mechanism (35) and the transverse plate (31) is arranged at a right angle.

9. The metal tube rotary spraying device according to claim 8, characterized in that: The linkage mechanism (34) comprises a fourth shell (341); the fourth shell (341) is an open annular structure; a plurality of groups of nozzles (342) are embedded and installed at the bottom of the fourth shell (341); the plurality of groups of nozzles (342) are arranged in an annular array with the central axis of the fourth shell (341) as the center; two groups of one-way valves (344) are embedded and installed on the inner wall of the fourth shell (341); a material guide shell (343) is fixed between the two groups of one-way valves (344) and is connected to the two groups of one-way valves (344); the material guide shell (343) A paint storage tank (345) is arranged on the top of the shell (343), and a metering pump (346) is arranged between the bottom of the paint storage tank (345) and the top of the material guiding shell (343); a cover plate (347) is arranged on the top of the fourth shell (341), and an air pump (348) is arranged on the top of the cover plate (347); the output end of the air pump (348) extends into the fourth shell (341); and the top of the paint storage tank (345) is drivingly connected to the output end of the third motor (32).

10. The metal tube rotary spraying device according to claim 8, characterized in that: The testing mechanism (35) comprises a fifth shell (351); a plurality of groups of third electric push rods (352) are arranged at the top end of the inner wall of the fifth shell (351); the output ends of the plurality of groups of third electric push rods (352) are all connected to a paint film meter (353) in a transmission manner; the paint film meter (353) passes through the bottom of the fifth shell (351) and extends to the surface of the tube body (4).

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