A thermal spraying equipment for the production of chemical fiber machinery parts

Abstract

This invention relates to the production of mechanical parts, specifically a thermal spraying equipment for the production of chemical fiber mechanical parts. The equipment includes a spraying equipment housing, inside which a spraying assembly is installed. A metal powder heating tube assembly is located on the upper outer side of the housing. The advantages are as follows: by mounting the parts on a rotating platform for chemical fiber mechanical parts, and with the spraying head rotating during the spraying process, the nozzle at the front end of the spraying head is modified into an eagle-beak spray guide. Its converging shape effectively constrains the diffusion range of the coating, facilitating stable fluid flow, reducing turbulence and dispersion, thereby improving atomization and resulting in finer and more uniform coating particles. Furthermore, during the spraying process, the inner spraying chamber introduces an oblique airflow in the same direction as the rotation of the rotating platform through gas guide vanes. This ensures that during the rotational spraying process, the coating is carried by the airflow and evenly coats and covers the surface of the parts along the rotation direction.

Description

Technical Field

[0001] This invention pertains to the production of mechanical parts, specifically relating to a thermal spraying equipment for the production of chemical fiber mechanical parts. Background Technology

[0002] Chemical fiber machinery parts refer to various components used in chemical fiber production equipment. These parts are widely used in the production equipment of various synthetic fibers such as polyester, nylon, and polypropylene, such as winding heads, tensioners, and guide wheels. They are used to wind the fiber bundles after melt spinning into bobbins according to certain specifications. Chemical fiber machinery parts are produced by melting and casting technology. Therefore, after the production of chemical fiber machinery parts, they need to undergo surface spraying to make the surface smooth and wear-resistant. Thermal spraying refers to spraying molten or heated material into the surface of the parts in the form of high-speed particles to form one or more layers of coating with excellent properties. This is used to improve the wear resistance, corrosion resistance, oxidation resistance, high-temperature oxidation resistance, insulation, and conductivity of the parts. Existing thermal spraying equipment uses changes in nozzles and spray angles to spray the surface of chemical fiber machinery parts, but it ignores the fact that changes in nozzles and spray angles may lead to inconsistent coating thickness.

[0003] Existing technology achieves uniform coating of parts by setting up a spray frame to rotate the parts during spraying instead of changing the nozzle and spray angle. However, there is still a problem that the molten paint will be thrown out when the parts rotate, which is not conducive to paint adhesion.

[0004] Therefore, this invention proposes a thermal spraying equipment for the production of chemical fiber machinery parts, which solves the problem in the existing technology where the spraying frame is set up so that the rotation of the parts during spraying replaces the change of nozzle and spray angle to achieve uniform spraying of the parts surface. This causes the molten paint to be thrown out when the parts rotate, which is not conducive to paint adhesion. The nozzle can be improved and combined with a rotating table so that the sprayed paint evenly coats and covers the surface of the parts in the direction of rotation of the parts, without splashing or uneven adhesion caused by centrifugal force or excessive rotation speed. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a thermal spraying equipment for the production of chemical fiber machinery parts, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a thermal spraying equipment for the production of chemical fiber machinery parts, comprising a spraying equipment shell, a spraying assembly disposed inside the spraying equipment shell, and a metal powder heating tube assembly disposed on the upper outer side of the spraying equipment shell. The spraying assembly includes a spraying chamber, a rotating placement table for chemical fiber machinery parts, a spraying tube, and a spraying head. The metal powder heating tube assembly includes a heating tube and a metal powder sieving tube.

[0007] Preferably, the spraying chamber is fixedly installed inside the outer shell of the spraying equipment, and a gas guide vane is fixedly installed on the inner side wall of the spraying chamber. A ventilation slot adapted to the gas guide vane is opened on the side wall of the spraying chamber.

[0008] Preferably, a ventilation pipe is fixedly installed on the side wall of the coating equipment housing, the rotary placement platform for chemical fiber machinery parts is rotatably installed on the bottom upper surface of the coating equipment housing, a coating waste discharge pipe is fixedly installed on the bottom inner wall of the rotary placement platform for chemical fiber machinery parts, a meshing gear is fixedly installed on the upper outer surface of the coating waste discharge pipe, and a discharge pipe is fixedly installed on the lower inner side wall of the coating waste discharge pipe.

[0009] Preferably, an adjusting rod is rotatably mounted inside the spray residue discharge pipe, and the outer surface of the adjusting rod is symmetrically provided with bidirectional threads. A limit rod is provided on the outer side of the adjusting rod, and sliding discs are symmetrically and movably mounted on the outer surface of the adjusting rod. The inner walls of the two sets of sliding discs are respectively threaded to the outer surface of the adjusting rod.

[0010] Preferably, an inner support block is symmetrically arranged between the two sets of sliding disks, and a connecting rod is rotatably installed on both sides of the inner support block, with one end of the connecting rod rotatably connected to the outer surface of the sliding disk.

[0011] Preferably, the rotating platform for chemical fiber machinery parts is a concave truncated cone, and a scraper plate that fits against the upper surface of the rotating platform is fixedly installed in the middle of the adjusting rod. A motor is fixedly installed on one side of the bottom of the spraying equipment housing, and a drive gear is fixedly installed at the output end of the motor. The side surface of the drive gear meshes with the side surface of the meshing gear.

[0012] Preferably, the spray pipe is fixedly installed on the top upper surface of the spray chamber, the upper end of the input pipe of the spray head is fixedly connected to the lower end of the output pipe of the spray pipe, the front end of the spray head is fixedly installed with an eagle beak spray guide, the spray head is obliquely arranged inside the gas guide vane, the rear end inner wall of the spray head is rotatably installed with a pressure boosting blade, and the rear end of the spray head is fixedly installed with a drive motor for driving the pressure boosting blade to rotate.

[0013] Preferably, an electric arc heat release device is provided at the bottom of the heating tube, a conveying pipe is fixedly installed on the left inner wall of the heating tube, the outer surface of the conveying pipe penetrates the side wall of the spraying equipment and is fixedly connected to the input pipe end of the spraying tube, and a high-speed airflow inlet pipe is fixedly installed on the right side wall of the heating tube.

[0014] Preferably, the metal powder sieving tube is fixedly installed at the upper end of the heating tube, a screen is fixedly installed inside the metal powder sieving tube, a second motor is fixedly installed at the top of the metal powder sieving tube, and a rotating rod is fixedly installed on the output shaft of the second motor.

[0015] Preferably, the outer surface of the rotating rod is rotatably connected to the inside of the screen, and a material-discharging spiral blade is fixedly installed on the lower outer surface of the rotating rod, with the outer surface of the material-discharging spiral blade in contact with the inner surface of the heating tube.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] By mounting the accessories on a rotating platform for chemical fiber machinery parts, and coordinating with the spray nozzle to rotate during the spraying process, and by modifying the nozzle's outlet into an eagle-beak spray guide, the converging shape effectively constrains the paint's diffusion range, facilitating stable fluid flow, reducing turbulence and dispersion, and thus improving atomization. This results in finer and more uniform paint particles. Furthermore, the spraying chamber, through gas guide vanes, introduces an oblique airflow in the same direction as the rotating platform during spraying. This ensures that the paint is carried by the airflow and evenly coats and covers the accessory surface along the rotation direction. This solves the problem of existing technologies where rotating the spray frame instead of changing the nozzle and spray angle results in molten paint being thrown out during rotation, hindering paint adhesion. The improved nozzle, combined with the rotating platform, ensures that the sprayed paint evenly coats and covers the accessory surface along the rotation direction, preventing splashing or uneven adhesion due to centrifugal force or excessive rotation speed. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the overall bottom view of the present invention;

[0020] Figure 3 This is a schematic diagram of the internal structure of the spraying chamber of the present invention;

[0021] Figure 4 This is a top view of the internal structure of the spraying chamber of the present invention;

[0022] Figure 5 This is a schematic diagram of the spraying chamber structure of the present invention;

[0023] Figure 6 This is a schematic diagram of the rotating placement platform structure for chemical fiber machinery parts of the present invention;

[0024] Figure 7This is a schematic diagram of the adjusting lever structure of the present invention;

[0025] Figure 8 This is a schematic cross-sectional view of the rotating placement platform for chemical fiber machinery parts of the present invention;

[0026] Figure 9 This is a schematic diagram of the spray pipe structure of the present invention;

[0027] Figure 10 This is a schematic diagram of the metal powder sieve tube structure of the present invention;

[0028] Figure 11 This is a schematic diagram of the spray head structure of the present invention.

[0029] In the diagram: 1. Spraying equipment casing; 2. Spraying components; 21. Spraying chamber; 211. Gas guide vane; 22. Ventilation pipe; 23. Rotary placement table for chemical fiber machinery parts; 231. Spraying residue discharge pipe; 2311. Meshing gear; 2312. Discharge pipe; 232. Adjusting rod; 2321. Limiting rod; 2322. Sliding disc; 2323. Connecting rod; 2324. Inner support block; 233. Scraper; 24. Motor 1; 241. Drive gear; 25. Spraying pipe; 26. Spraying head; 261. Beak spraying guide; 262. Pressure boosting blade; 3. Metal powder heating pipe assembly; 31. Heating pipe; 311. Conveying pipe; 312. High-speed airflow inlet pipe; 32. Metal powder sieving pipe; 321. Screen; 33. Motor 2; 331. Rotating rod; 332. Discharge spiral blade. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Example 1

[0032] Please see Figures 1 to 11This invention provides a technical solution: a spraying equipment housing 1, a spraying assembly 2 disposed inside the spraying equipment housing 1, and a metal powder heating tube assembly 3 disposed on the upper outer side of the spraying equipment housing 1. The spraying assembly 2 includes a spraying chamber 21, a rotating placement table for chemical fiber machinery parts 23, a spraying pipe 25, and a spraying head 26. The metal powder heating tube assembly 3 includes a heating pipe 31 and a metal powder sieving pipe 32. The spraying chamber 21 is fixedly installed inside the spraying equipment housing 1, and a [missing information - likely a component or material] is fixedly installed on the inner side wall of the spraying chamber 21. A gas guide vane 211 is provided, and a ventilation slot adapted to the gas guide vane 211 is opened on the side wall of the spraying chamber 21. A ventilation pipe 22 is fixedly installed on the side wall of the spraying equipment shell 1. A chemical fiber machinery parts rotating placement table 23 is rotatably installed on the bottom upper surface of the spraying equipment shell 1. A spraying waste discharge pipe 231 is fixedly installed on the bottom inner wall of the chemical fiber machinery parts rotating placement table 23. A meshing gear 2311 is fixedly installed on the upper outer surface of the spraying waste discharge pipe 231, and a fixed gear 2311 is fixed on the lower inner side wall of the spraying waste discharge pipe 231. A discharge pipe 2312 is installed, and an adjusting rod 232 is rotatably installed inside the spray residue discharge pipe 231. A bidirectional thread is symmetrically arranged on the upper part of the outer surface of the adjusting rod 232. A limit rod 2321 is provided on the outer side of the adjusting rod 232. Sliding discs 2322 are symmetrically and movably installed on the outer surface of the adjusting rod 232. The inner walls of the two sets of sliding discs 2322 are respectively threaded to the outer surface of the adjusting rod 232. An inner support block 2324 is symmetrically arranged between the two sets of sliding discs 2322. The inner support block 2324 has two sides respectively... A connecting rod 2323 is rotatably installed, one end of which is rotatably connected to the outer surface of the sliding disk 2322. The rotating platform 23 for chemical fiber machinery parts is a concave truncated cone. A scraper 233 that is in contact with the upper surface of the rotating platform 23 is fixedly installed in the middle of the adjusting rod 232. A motor 24 is fixedly installed on one side of the bottom of the spraying equipment housing 1. A drive gear 241 is fixedly installed at the output end of the motor 24. The side surface of the drive gear 241 meshes with the side surface of the meshing gear 2311.

[0033] In this embodiment, the spraying chamber 21 is installed inside the outer shell 1 of the spraying equipment. There is a ventilation interlayer between the spraying chamber 21 and the outer shell 1 of the spraying equipment. One end of the ventilation pipe 22 is connected to an industrial fan, which guides the air through the gas guide vane 211 during the spraying process. The gas guide vane 211 is a narrow arc-shaped interlayer plate, which increases the airflow speed and forms an oblique airflow in the same direction as the rotation of the chemical fiber machinery parts rotating platform 23. By rotating the adjusting rod 232 inside the spraying residue outlet pipe 231, the sliding disk 2322 is positioned relative to the limit rod 2321. Sliding together causes the inner support block 2324 to support the inner wall of the accessory outward with the cooperation of the connecting rod 2323, thus fixing the accessory onto the rotating platform 23 for chemical fiber machinery accessories. Reverse rotation of the adjusting rod 232 causes the sliding disc 2322 to separate, at which point the inner support block 2324 closes, facilitating accessory disassembly and making it easy to use. After the accessory is installed, the motor 24 drives the drive gear 241 to rotate. Because the drive gear 241 meshes with the meshing gear 2311, it drives the spray residue outlet pipe 231 and the rotating platform 23 for chemical fiber machinery accessories to rotate, thus fixing the accessory onto the rotating platform 23 for chemical fiber machinery accessories. The spray nozzle 26 rotates during the spraying process, and the spraying chamber 21, through the gas guide vane 211, introduces an oblique airflow in the same direction as the rotation of the rotating platform 23 for the chemical fiber machinery parts. This ensures that the paint is carried by the airflow and evenly coats and covers the surface of the parts along the rotation direction. The rotating platform 23 for the chemical fiber machinery parts is a concave truncated cone, and excess paint will fall onto it. At the same time, when the adjusting rod 232 is rotated in the opposite direction later, it will drive the scraper 233 to rotate and scrape the paint to orient it. The fiber machinery parts are gathered in the middle of the rotating placement table 23 and finally enter the spray residue outlet pipe 231 and are discharged through the discharge pipe 2312, avoiding waste of spraying material. This solves the problem in the existing technology where the spray frame is set up so that the rotation of the parts during spraying replaces the change of nozzle and spray angle to achieve uniform spraying of the parts surface. This causes the molten paint to be thrown out when the parts rotate, which is not conducive to paint adhesion. The nozzle can be improved and combined with the rotating table so that the sprayed paint evenly wraps and covers the surface of the parts in the direction of rotation of the parts, without splashing or uneven adhesion due to centrifugal force or excessive rotation speed.

[0034] Example 2

[0035] Please see Figures 1 to 11 Based on Embodiment 1, in order to increase the friction after the inner support block 2324 supports the inner wall of the accessory so that the accessory will not slide relative to the inner wall during the rotation of the chemical fiber machinery accessory rotating placement platform 23, this embodiment also proposes to add an elastic support ball column to the outer side of the inner support block 2324. The elastic support ball column is symmetrically hinged to the outer wall of the inner support block 2324, and a support spring is provided between one side of the elastic support ball column and the inner side wall of the inner support block 2324.

[0036] In this embodiment, when the inner support block 2324 unfolds to support the interior of the accessory, the elastic support ball column is squeezed outward to support the accessory according to the shape of the inner wall of the accessory. The support spring squeezes the elastic support ball column outward to ensure that the elastic support ball column is in close contact with the inner wall of the accessory, increasing the support area and friction, resisting the centrifugal force generated by the rotation of the chemical fiber machinery accessory rotating platform 23, preventing the accessory from sliding, and ensuring that the accessory can rotate with the rotation of the chemical fiber machinery accessory rotating platform 23, making the accessory spraying more uniform. This further solves the problem in the prior art where the setting of the spraying frame makes the accessory rotate instead of the nozzle and spray angle change to achieve uniform spraying of the accessory surface, which causes the molten paint to be thrown out when the accessory rotates, which is not conducive to paint adhesion. The nozzle can be improved and cooperated with the rotating platform to make the sprayed paint evenly wrap and cover the accessory surface in the direction of the accessory's rotation, without splashing or uneven adhesion due to centrifugal force or excessive rotation speed.

[0037] Example 3

[0038] Please see Figures 1 to 11 Based on Embodiment 2, in order to make the coating of accessories more uniform, this embodiment also proposes that the spraying pipe 25 is fixedly installed on the top upper surface of the spraying chamber 21, the upper end of the input pipe of the spraying head 26 is fixedly connected to the lower end of the output pipe of the spraying pipe 25, the front end of the spraying head 26 is fixedly installed with the beak spraying guide 261, the spraying head 26 is obliquely arranged inside the gas guide vane 211, the rear end inner wall of the spraying head 26 is rotatably installed with the pressurizing blade 262, and the rear end of the spraying head 26 is fixedly installed with a drive motor that drives the pressurizing blade 262 to rotate.

[0039] In this embodiment, the molten coating material generated by the heating pipe 31 enters the spray head 26 through the spray pipe 25 for spraying. The pressurizing blade 262 rotates under the drive of the motor, which not only pressurizes the coating material but, more importantly, changes its direction, causing it to gush out through the beak spray guide 261. The spray outlet at the front end of the spray head 26 is improved into a beak spray guide 261. The converging shape of the beak spray guide 261 can better constrain the diffusion range of the coating material, which is conducive to stable fluid flow and more accurately guides the direction of the liquid or powder coating material to be sprayed at high speed in the direction of the component's rotation, reducing turbulence and dispersion, thereby improving the atomization effect. This allows the sprayed paint particles to adhere more finely and evenly to the surface of the parts. The spray head 26, spray pipe 25, eagle beak spray guide 261, and pressurizing blade 262 are all made of high-temperature resistant metal materials. This further solves the problem in the existing technology where the spray frame is set up so that the rotation of the parts during spraying replaces the change of nozzle and spray angle to achieve uniform spraying of the parts surface. This causes the molten paint to be thrown out when the parts rotate, which is not conducive to paint adhesion. The nozzle can be improved and used in conjunction with the rotating table so that the sprayed paint evenly wraps and covers the surface of the parts in the direction of rotation of the parts, without splashing or uneven adhesion due to centrifugal force or excessive rotation speed.

[0040] Example 4

[0041] Please see Figures 1 to 11 Based on Example 3, in order to screen out larger particles of the spraying material before heating and avoid uneven particle size, this example also proposes that an electric arc heat release device be provided at the bottom of the heating tube 31, a conveying pipe 311 be fixedly installed on the left inner wall of the heating tube 31, the outer surface of the conveying pipe 311 penetrates the side wall of the spraying equipment shell 1 and is fixedly connected to the input pipe end of the spraying tube 25, a high-speed airflow inlet pipe 312 be fixedly installed on the right side wall of the heating tube 31, a metal powder screening tube 32 be fixedly installed at the upper end of the heating tube 31, a screen 321 be fixedly installed inside the metal powder screening tube 32, a motor 33 be fixedly installed at the top of the metal powder screening tube 32, a rotating rod 331 be fixedly installed on the output shaft of the motor 33, the outer surface of the rotating rod 331 be rotatably connected to the inside of the screen 321, and a pouring spiral blade 332 be fixedly installed on the lower outer surface of the rotating rod 331, the outer surface of the pouring spiral blade 332 be in contact with the inner surface of the heating tube 31.

[0042] In this embodiment, a feed pipe is provided on the outside of the metal powder screening pipe 32. The coating particles enter the metal powder screening pipe 32 through the feed pipe and are screened by the screen 321 to ensure that the coating particles of uniform size pass through. The operation of the motor 33 drives the rotating rod 331 and the feeding spiral blade 332 to rotate, so that the coating particles are evenly fed into the metal powder screening pipe 32. The electric arc discharge between the two metal wires of the electric arc exothermic device at the bottom of the heating pipe 31 generates high temperature. The coating metal powder will come into contact with the electric arc area and be rapidly heated to a molten state. Then, it enters the pipe 31 with the help of high-speed airflow. 2. The incoming high-pressure airflow is delivered to the spray pipe 25 through the delivery pipe 311 and sprayed out through the spray head 26, which improves the uniformity of the particles. This further solves the problem in the existing technology where the spray frame is set up so that the rotation of the accessory during spraying replaces the change of nozzle and spray angle to achieve uniform spraying of the accessory surface. This causes the molten paint to be thrown out when the accessory rotates, which is not conducive to paint adhesion. The nozzle can be improved and used in conjunction with the rotating table so that the sprayed paint evenly wraps and covers the accessory surface in the direction of the accessory's rotation, without splashing or uneven adhesion due to centrifugal force or excessive rotation speed.

[0043] Example 5

[0044] Please see Figures 1 to 11 Based on Example 4, in order to make the particle size distribution, density and flowability of the screened particles more uniform, this example also proposes to add a moving grinding disc and a fixed grinding disc above the screen 321. The moving grinding disc is triangular pyramidal and the fixed grinding disc is hollow oblique cylindrical. The fixed grinding disc is set below the feed pipe. The moving grinding disc is fixedly installed on the rotating rod 331 and the fixed grinding disc is fixedly installed on the inner wall of the metal powder screening pipe 32. Grinding protrusions are provided between the moving grinding disc and the fixed grinding disc. The bottom of the moving grinding disc in contact with the upper surface of the screen also has grinding protrusions.

[0045] In this embodiment, paint particles enter the metal powder sieve tube 32 through the feed pipe, fall onto the fixed grinding disc, and roll along the edge of the fixed grinding disc between the moving grinding disc and the fixed grinding disc. At this time, the rotating rod 331 drives the fixed grinding disc to rotate and grind the paint particles, making the paint particles more fine and uniform. In addition, the bottom of the moving grinding disc can grind and crush the large particles on the screen. This further solves the problem in the prior art where the spray frame is set up to rotate during the spraying of accessories instead of changing the nozzle and spray angle to achieve uniform spraying of the accessory surface. This causes the molten paint to be thrown out when the accessory rotates, which is not conducive to paint adhesion. The nozzle can be improved and combined with the rotating table so that the sprayed paint evenly coats and covers the accessory surface in the direction of the accessory's rotation, without splashing or uneven adhesion due to centrifugal force or excessive rotation speed.

[0046] Example 6

[0047] Please see Figures 1 to 11Based on Example 5, this example also proposes a method for using a thermal spraying equipment for the production of chemical fiber machinery parts, including the following steps:

[0048] Step 1: Lift the cover on top of the spraying chamber 21 and place the accessory on the rotating platform 23 for chemical fiber machinery accessories. Make sure the inner wall of the accessory is fitted over the outside of the adjusting rod 232. By rotating the adjusting rod 232, the sliding plate 2322 slides and closes relative to the limiting rod 2321, so that the inner support block 2324 supports the inner wall of the accessory outward with the cooperation of the connecting rod 2323. Fix the accessory on the rotating platform 23 for chemical fiber machinery accessories and put the cover on.

[0049] Step 2: Start the equipment. The paint particles enter the metal powder screening pipe 32 through the feed pipe and are screened by the screen 321 to make the paint particles of uniform size pass through. The electric arc discharge between the two metal wires of the electric arc heat dissipation device at the bottom of the heating pipe 31 generates high temperature. The paint metal powder will come into contact with the electric arc area and be rapidly heated to a molten state. Then, with the help of the high-pressure airflow entering the high-speed airflow inlet pipe 312, it is transported to the spray pipe 25 through the conveying pipe 311 and sprayed out through the spray head 26. The motor 24 drives the drive gear 241 to rotate. Because the drive gear 241 meshes with the meshing gear 2311, it drives the spray residue outlet pipe 231 and the chemical fiber machinery parts rotating placement table 23 to rotate. This makes the parts rotate in conjunction with the spray pipe 25 and the spray head 26 during the spraying process. During the spraying process, the spraying chamber 21 introduces the oblique airflow in the same direction as the rotation of the chemical fiber machinery parts rotating placement table 23 through the gas guide vane 211. This makes the paint evenly wrap and cover the surface of the parts along the rotation direction of the parts during the rotation spraying process.

[0050] Step 3: After spraying, open the cover and rotate the adjusting rod 232 in the opposite direction to separate the sliding disc 2322. At this time, the inner support block 2324 will gather together and the accessories will be disassembled. Rotating the adjusting rod 232 will drive the scraper 233 to rotate and scrape the paint into the middle of the orientation chemical fiber mechanical parts rotation placement table 23. Finally, the paint will enter the spraying residue outlet pipe 231 and be discharged through the discharge pipe 2312. It can be reused later.

[0051] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A thermal spraying apparatus for producing a mechanical fitting for synthetic fibers, comprising a spraying apparatus housing (1), characterized in that: The spraying equipment housing (1) is provided with a spraying assembly (2) inside, and a metal powder heating tube assembly (3) is provided on the upper outer side of the spraying equipment housing (1). The spraying assembly (2) includes a spraying chamber (21), a chemical fiber machinery parts rotating placement table (23), a spraying tube (25) and a spraying head (26). The metal powder heating tube assembly (3) includes a heating tube (31) and a metal powder sieving tube (32). The spraying chamber (21) is fixedly installed inside the outer shell (1) of the spraying equipment. A gas guide vane (211) is fixedly installed on the inner side wall of the spraying chamber (21). A ventilation slot adapted to the gas guide vane (211) is opened on the side wall of the spraying chamber (21). A ventilation pipe (22) is fixedly installed on the side wall of the outer shell (1) of the spraying equipment. The rotating placement platform (23) for chemical fiber machinery parts is rotatably installed on the bottom upper surface of the outer shell (1) of the spraying equipment. A spraying waste discharge pipe (231) is fixedly installed on the bottom inner wall of the rotating placement platform (23). A meshing gear (2311) is fixedly installed on the upper outer surface of the spraying waste discharge pipe (231). A discharge pipe (2312) is fixedly installed on the lower inner side wall of the spraying waste discharge pipe (231). The spray pipe (25) is fixedly installed on the top upper surface of the spray chamber (21). The upper end of the input pipe of the spray head (26) is fixedly connected to the lower end of the output pipe of the spray pipe (25). The front end of the spray head (26) is fixedly installed with an eagle beak spray guide (261). The spray head (26) is obliquely arranged inside the gas guide vane (211). There is a ventilation interlayer between the spray chamber (21) and the outer shell (1) of the spraying equipment. One end of the ventilation pipe (22) is connected to an industrial fan, which introduces the air through the gas guide vane (211) during the spraying process, forming an oblique airflow in the same direction as the rotation of the chemical fiber machinery parts rotating placement platform (23).

2. A production thermal spraying apparatus for a mechanical fiber component according to claim 1, characterized in that: An adjusting rod (232) is rotatably installed inside the spray residue outlet pipe (231). A bidirectional thread is symmetrically arranged on the outer surface of the adjusting rod (232). A limit rod (2321) is provided on the outer side of the adjusting rod (232). A sliding disc (2322) is symmetrically and movably installed on the outer surface of the adjusting rod (232). The inner walls of the two sets of sliding discs (2322) are respectively threaded to the outer surface of the adjusting rod (232).

3. A production thermal spraying apparatus for a fiber machinery accessory according to claim 2, characterized in that: An inner support block (2324) is symmetrically arranged between the two sets of sliding disks (2322). A connecting rod (2323) is rotatably installed on both sides of the inner support block (2324). One end of the connecting rod (2323) is rotatably connected to the outer surface of the sliding disk (2322).

4. A production thermal spraying apparatus for a fiber machinery accessory according to claim 2, characterized in that: The rotating platform (23) for chemical fiber machinery parts is a concave truncated cone. A scraper (233) that fits against the upper surface of the rotating platform (23) is fixedly installed in the middle of the adjusting rod (232). A motor (24) is fixedly installed on one side of the bottom of the spraying equipment housing (1). A drive gear (241) is fixedly installed at the output end of the motor (24). The side surface of the drive gear (241) meshes with the side surface of the meshing gear (2311).

5. A production thermal spraying apparatus for a fiber machinery accessory according to claim 1, characterized in that: A booster blade (262) is rotatably mounted on the inner wall of the rear end of the spray head (26), and a drive motor for driving the booster blade (262) to rotate is fixedly mounted on the rear end of the spray head (26).

6. A production thermal spraying apparatus for a fiber machinery accessory according to claim 1, characterized in that: An electric arc heat release device is provided at the bottom of the heating tube (31). A conveying pipe (311) is fixedly installed on the left inner wall of the heating tube (31). The outer surface of the conveying pipe (311) penetrates the side wall of the spraying equipment housing (1) and is fixedly connected to the input pipe end of the spraying pipe (25). A high-speed airflow inlet pipe (312) is fixedly installed on the right side wall of the heating tube (31).

7. A production thermal spraying apparatus for a fiber machinery accessory according to claim 1, characterized in that: The metal powder sieve tube (32) is fixedly installed at the upper end of the heating tube (31). A screen (321) is fixedly installed inside the metal powder sieve tube (32). A second motor (33) is fixedly installed at the top of the metal powder sieve tube (32). A rotating rod (331) is fixedly installed on the output shaft of the second motor (33).

8. A production thermal spraying apparatus for a fiber machinery fitting according to claim 7, characterized in that: The outer surface of the rotating rod (331) is rotatably connected to the inside of the screen (321). A material pouring spiral blade (332) is fixedly installed on the lower outer surface of the rotating rod (331). The outer surface of the material pouring spiral blade (332) is in contact with the inner surface of the heating tube (31).

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