Automatic spraying and stirring device for easily-precipitated aviation coating

Abstract

The invention relates to the technical field of aviation coating spraying and stirring, and discloses an automatic spraying and stirring device for easily-precipitated aviation coating. By arranging the telescopic rod made of a magnetic telescopic material, when the stirring rod rotates and stirs, the telescopic rod is intermittently located in an effective coverage range of a permanent magnet block, so that the telescopic rod intermittently extends, the telescopic rod moves along with the telescopic rod, and the telescopic rod drives a push plate to do reciprocating telescopic motion; coating containing precipitates continuously passes through the crushing chamber; meanwhile, compressed air passes through the air inlet chamber and the exhaust chamber unidirectionally to push the airflow fan to rotate, the airflow fan drives the micro stirring blades to fully stir the easily precipitated coating, and trace bubbles generated in the stirring process flow into the exhaust chamber unidirectionally through the liquid separation breathable film and the one-way air valve to be discharged; the device can effectively reduce the influence of trace bubbles generated in the stirring process on the coating, fully stir the coating easy to precipitate, prevent the coating from precipitating, and improve the coating mixing quality.

Description

Technical Field

[0001] The invention relates to the technical field of aviation coating spraying and stirring, in particular to an automatic spraying and stirring device for easily precipitated aviation coating. Background Art

[0002] With the development of the aviation manufacturing industry, there are more than 500 types of aviation coatings in my country. They have special performance requirements to adapt to the operation requirements of aircraft in extreme environments, involving epoxy resin coatings, vinyl resin coatings, silicone resin coatings, phenolic resin coatings and rubber-type coatings, etc. According to different use parts and functional performance requirements, they can be divided into conventional coating primers, topcoats, etc., functional coatings, camouflage, antistatic, heat insulation and damping reduction, temperature resistance, fire resistance, wear resistance and anti-skid, etc. Most of them are two-component or three-component solvent-based paints, and have a maturation period requirement, which is different from the water-based and single-component paints used in the automotive industry. Aviation coatings are usually suspensions composed of multiple components. Long-term standing can easily separate the "active ingredients" of the coating from the liquid part and precipitate to the bottom of the container. For coating containers that have already precipitated, forcing the spraying action may cause the "spraying" action to be unsmooth, or it cannot be evenly distributed on the inner wall of the mold, affecting the appearance and quality of aircraft components. Even worse, it may block the spray hose and cause spraying failure. Summary of the invention

[0003] The purpose of the present invention is to provide an automatic spraying and stirring device for easily precipitated aviation paint to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: According to the first aspect of the present invention, an automatic spraying and stirring device for easily precipitated aviation coating is proposed, comprising a stirring drum 1, a stirring shaft 213, an air motor 212, a stirring rod 217, a connecting block 214, and a permanent magnet block 215; the top of the stirring drum 1 is provided with a liquid inlet 112, and the bottom is provided with a liquid outlet 115; the stirring shaft 213 is inserted into the stirring drum 1, and its top end is connected to the output end of the air motor 212 for driving the stirring shaft 213 to rotate, and its bottom end is connected to the stirring shaft 217, and the stirring shaft 217 is connected to the connecting block 214, and the permanent magnet block 215 ... The inner wall of the mixing drum 1 is rotatably connected; the stirring rod 217 is circumferentially distributed near the bottom end of the mixing drum 1 and is connected to the stirring shaft 213; a paint precipitation prevention component 3 is arranged in the stirring rod 217; the connecting block 214 is arranged above the stirring rod, one end of which is fixedly connected to the inner wall of the mixing drum 1, and the other end is fixedly connected to the permanent magnet block 215; the stirring rod 217 rotates with the stirring shaft 213, and is intermittently located under the permanent magnet block 215, and the magnetic force drives the paint precipitation prevention component 3 to suck in the precipitated paint and discharge it after breaking it.

[0005] In a possible embodiment, an exhaust port 113 is also provided at the top of the mixing drum 1; the mixing shaft 213 is a double-layer sleeve structure, including an outer tube 2131 and an inner tube 2132; the outer tube 2131 is sealed with the inner tube 2132, and the interlayer 2130 formed by the inner wall of the outer tube 2131 and the outer wall of the inner tube 2132 is hollow, and the interior of the inner tube 2132 is hollow; a heating copper rod 218 is built into the inner tube 2132 near the bottom seal.

[0006] In a possible embodiment, the paint precipitation prevention component 3 includes a crushing chamber 31, a liquid inlet 311 of the crushing chamber 31 is opened on the top side of the stirring rod 217, and a liquid discharge port 315 is opened on the end of the stirring rod 217 away from the stirring shaft 213; in the crushing chamber 31, a crushing unit is arranged between the liquid inlet 311 and the liquid discharge port 315; a telescopic rod 312 is fixedly installed on the inner wall of the crushing chamber 31 on one side close to the stirring shaft 213, and a push plate 313 that is sealed and slidable with the crushing chamber 31 is fixedly installed at the telescopic end of the telescopic rod 312, and a paint discharge hole 314 is equidistantly opened on the end surface of the push plate 313 in the circumferential direction, wherein the telescopic rod 312 is made of magnetic telescopic material, which will stretch under the action of the magnetic field and can automatically shrink and recover after the magnetic field disappears, so that the easy-to-precipitate paint is continuously crushed by the crushing unit of the crushing chamber 31.

[0007] In a possible embodiment, a compressed air inlet interface 2134 is provided inside the inner tube 2132 of the stirring shaft 213, and a compressed air outlet interface 2133 is provided on the top of the interlayer 2130; the coating precipitation prevention component 3 also includes an air inlet chamber 32, an exhaust chamber 33, a partition 1 34, a partition 2 35, and a one-way air valve port 351; wherein the crushing chamber 31 and the air inlet chamber 32 are fixedly installed with a partition 1 34, and the partition 1 34 separates the crushing chamber 31 from the air inlet chamber 32; the partition 2 35 is fixedly installed away from one end of the stirring shaft 213 The one-way air valve port 351 separates the air intake chamber 32 and the exhaust chamber 33; the crushing unit is installed in the air pressure groove of the partition 34, one end of which is provided with an air flow fan 346 and the other end is coaxially provided with a micro stirring blade 348, the air flow fan 346 is located in the air intake chamber 32, and the micro stirring blade 348 is located in the crushing chamber 31; the air pressure groove has a liquid-isolating and breathable structure, and the trace bubbles generated during the stirring process first enter the air intake chamber 32 through the liquid-isolating and breathable structure, and then enter the exhaust chamber 33 through the one-way air valve port 351.

[0008] In a possible embodiment, the liquid-isolating and breathable structure includes a liquid-isolating and breathable membrane 344, a one-way air valve 342, and a guide block 343; the one-way air valve 342 is arranged on the top of the air pressure groove 341, and the guide block 343 is fixedly installed on the left side of the air pressure groove 341; the outer wall of the one-way air valve 342 is provided with a liquid-isolating and breathable membrane 344.

[0009] In a possible embodiment, the air intake chamber 32 is communicated with the inner tube 2132 ; the air exhaust chamber 33 is communicated with the interlayer 2130 .

[0010] In a possible embodiment, a support frame 111 is fixedly connected to the bottom of the mixing drum 1 .

[0011] In a possible embodiment, a protective cover 211 is further included, which is fixedly installed on the top of the mixing drum 1 ; and an air motor 212 is fixedly installed on the top of the inner wall of the protective cover 211 .

[0012] Another technical problem to be solved by the present invention is to provide an automatic spraying and stirring method for easily precipitated aviation coatings, the stirring method comprising the following steps:

[0013] Step 1: First, start the air motor to start running. The air motor drives the stirring shaft to rotate, and the stirring shaft drives the stirring rod to stir the paint;

[0014] Step 2: During the stirring process of the stirring rod rotating, the telescopic rod will be intermittently in the effective coverage range of the permanent magnet block, thereby causing the telescopic rod to intermittently extend, so that the telescopic rod drives the push plate to perform reciprocating telescopic motion;

[0015] Step three: when the paint containing sediment enters the crushing chamber from the liquid inlet, the paint containing sediment in the crushing chamber is pushed out by the push plate and discharged from the discharge hole provided on the push plate, so that the paint containing sediment continuously passes through the crushing chamber. Since the opening of the crushing chamber is located at the end position of the stirring rod, the paint containing sediment continuously transfers to the end position of the stirring rod; at the same time, compressed air enters the air inlet chamber through the gas inlet and drives the air flow fan to rotate. The air flow fan drives the rotating shaft, the rotating rod and the micro-stirring blades to rotate together, and then the micro-stirring blades fully stir the easily precipitated paint. The trace bubbles generated during the stirring process enter the air pressure tank through the liquid-isolating breathable membrane, enter the exhaust chamber through the air flow guide hole below the guide block of the one-way air valve, and enter the inner layer tube through the gas outlet for discharge; thereby, the paint can be fully transferred and mixed during the stirring process, thereby improving the stirring effect.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1 The present invention drives the stirring shaft to rotate through an air motor, and the stirring shaft drives the stirring rod to stir the paint. On the other hand, the heating copper rod built into the stirring shaft is heated by the heat generated by the electric heating wire, and then the paint can be heated and stirred, which makes it easier to melt the sediment in the paint and achieve the effect of initially breaking the sediment in the paint.

[0018] The present invention sets the stirring shaft as a double-layer sleeve structure, wherein the interior of the inner tube is hollow, and the compressed air enters the hollow interior of the inner tube through the air inlet at the top thereof, and enters the air inlet chamber through the gas inlet to drive the air flow fan to rotate; the sandwich formed by the inner wall of the outer tube and the outer wall of the inner tube is hollow, and the compressed air enters the sandwich formed by the double-layer sleeve from the gas outlet of the exhaust chamber, and is finally discharged through the exhaust port.

[0019] The present invention is provided with a telescopic rod made of a magnetic telescopic material. When the stirring rod rotates and stirs, the telescopic rod will be intermittently in the effective coverage range of the permanent magnet block, thereby causing the telescopic rod to intermittently extend, so that the telescopic rod moves accordingly, and the telescopic rod drives the push plate to perform reciprocating telescopic motion. When the paint containing sediment enters the crushing chamber from the liquid inlet, the paint containing sediment in the crushing chamber is pushed out by the push plate and discharged from the discharge hole provided on the push plate, so that the paint containing sediment continuously passes through the crushing chamber. Since the opening of the crushing chamber is located at the end of the stirring rod, the paint containing sediment is discharged from the discharge hole provided on the push plate. position, so that the coating containing sediment is continuously transferred to the end position of the stirring rod; at the same time, compressed air enters the air inlet chamber through the gas inlet and drives the air flow fan to rotate, and the air flow fan drives the rotating shaft, the rotating rod and the micro stirring blade to rotate together, and then the micro stirring blade fully stirs the easy-to-precipitate coating, and the trace bubbles generated during the stirring process enter the air pressure tank through the liquid-isolating breathable membrane, enter the exhaust chamber through the air flow guide hole under the guide block of the one-way air valve, and enter the inner layer tube through the gas outlet for discharge; thereby, the coating can be fully transferred and mixed during the stirring process, thereby improving the stirring effect.

[0020] The present invention divides the interior of the stirring rod into a crushing chamber, an air intake chamber and an exhaust chamber by arranging a partition plate 1 and a partition plate 2, so that the compressed air drives the air flow fan to rotate through the air intake chamber, and the air flow fan drives the rotating shaft, the rotating rod and the micro stirring blade to rotate together, so that the micro stirring blade fully stirs the easy-to-precipitate paint; at the same time, the micro bubbles and compressed air generated during the stirring process enter the exhaust chamber through the one-way air valve port and are discharged, which facilitates the discharge of the micro bubbles generated during the stirring process and improves the stirring quality of the paint. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a front schematic diagram of the overall structure of the present invention;

[0022] Figure 2A three-dimensional view of the stirring assembly of the present invention;

[0023] Figure 3 It is a front cross-sectional view of the overall structure of the present invention;

[0024] Figure 4 is a cross-sectional view of a stirring rod of the present invention;

[0025] Figure 5 For the present invention Figure 4 A magnified view of center A;

[0026] Figure 6 For the present invention Figure 3 Magnified view of B.

[0027] In the figure: 1 mixing drum, 111 support frame, 112 liquid inlet, 113 exhaust port, 114 fixing handle, 115 liquid outlet; 2 mixing assembly, 211 protective cover, 212 air motor, 2121 compressed air quick connector, 213 mixing shaft, 2130 interlayer, 2131 outer tube, 2132 inner tube, 2133 compressed air exhaust interface, 2134 air inlet, 214 connecting block, 215 permanent magnet block, 216 connecting ring, 217 stirring rod, 218 heating copper rod; 3 anti-paint sedimentation component, 31 crushing chamber, 311 liquid inlet, 312 telescopic rod, 313 push plate, 314 paint discharge hole, 315 liquid discharge port, 32 air inlet chamber, 321 gas inlet, 33 exhaust chamber, 331 gas outlet, 34 partition one, 341 air pressure groove, 342 one-way air valve, 343 guide block, 344 liquid-isolating breathable membrane, 345 rotating shaft, 346 air flow fan, 347 rotating rod, 348 micro stirring blade, 35 partition two, 351 one-way air valve port. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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.

[0029] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Example 1

[0032] like Figure 1-6 As shown: An automatic spraying and stirring device for easily precipitated aviation paint provided by the present invention comprises a stirring drum 1, the bottom of which is fixedly connected to a support frame 111, the top of which is provided with a liquid inlet 112 and an exhaust port 113, fixed handles 114 are fixedly installed on both sides of the outer wall of the stirring drum 1, a stirring assembly 2 is arranged inside the stirring drum 1, a liquid outlet 115 is arranged at the bottom of the stirring drum 1, and is equipped with an adaptive paint quick-connect joint.

[0033] The stirring assembly 2 includes the following structures: a protective cover 211, which is fixedly mounted on the top of the stirring drum 1; an air motor 212, which is fixedly mounted on the top of the inner wall of the protective cover 211; a compressed air quick-connect joint 2121 is provided on the top of the air motor 212, which is used to connect the compressed air at the painting site to drive the air motor 212 to work; a stirring shaft 213 is connected to the output end of the air motor 212, and an air inlet 2134 is provided at the connection between the top of the stirring shaft 213 and the air motor 212. The top of 213 passes through the top of the mixing drum 1 and extends to the interior of the mixing drum 1; the inner wall of the lower section of the mixing drum 1 is fixedly installed with connecting blocks 214 at equal intervals, and the other side of the connecting block 214 is fixedly connected to a permanent magnet block 215; the outer wall of the lower section of the mixing shaft 213 is fixedly sleeved with connecting rings 216 at equal intervals, and the outer wall of the connecting ring 216 is fixedly installed with stirring rods 217 at equal intervals, and the stirring rods 217 rotate with the mixing shaft 213 and are intermittently located below the permanent magnet block 215.

[0034] The stirring shaft 213 is a double-layer sleeve structure, which consists of an outer tube 2131 and an inner tube 2132; the outer tube 2131 and the inner tube 2132 are sealed and connected, and the interlayer 2130 formed by the inner wall of the outer tube 2131 and the outer wall of the inner tube 2132 is hollow, and the inner tube 2132 is hollow; a heating copper rod 218 is sealed inside the lower section of the inner tube 2132, and an electric heating wire is arranged inside the heating copper rod 218, and the electric heating wire is electrically connected to an external cable; a compressed air discharge interface 2133 is provided on the top of the interlayer hollow structure formed by the inner wall of the outer tube 2131 and the outer wall of the inner tube 2132 of the stirring shaft 213; a compressed air inlet interface 2134 is provided inside the inner tube 2132 of the stirring shaft 213.

[0035] A gas inlet 321 connected to the inflow of compressed air from the inner tube 2132 and a gas outlet 331 connected to the discharge of compressed air from the interlayer 2130 formed by the double-layer sleeve are respectively provided on the end of the stirring rod 217 near one end of the stirring shaft 213 and the connecting ring 216; the compressed air enters the air inlet chamber 32 through the hollow interlayer 2130 formed by the inner wall of the outer tube 2131 and the outer wall of the inner tube 2132 and the gas inlet 321; the compressed air enters the inner tube through the exhaust chamber 33 and the gas outlet 331 and is discharged.

[0036] In this embodiment, the air motor 212 drives the stirring shaft 213 to rotate, and the stirring shaft 213 drives the stirring rod 217 to stir the paint. On the other hand, the heating copper rod 218 built into the stirring shaft 213 can heat the coating liquid for heating and stirring, thereby facilitating the melting of the precipitate in the paint and achieving the effect of initially breaking up the precipitate in the paint.

[0037] Example 2

[0038] See also Figure 1-Figure 6 , and on the basis of Example 1, it is further obtained that: a paint precipitation prevention component 3 is arranged inside the stirring rod 217, and the paint precipitation prevention component 3 includes a crushing chamber 31, an air intake chamber 32, an exhaust chamber 33, a partition 1 34, a partition 2 35, and a one-way air valve port 351; wherein, the crushing chamber 31 and the air intake chamber 32 of the stirring rod 217 are fixedly installed with a partition 1 34, and the partition 1 34 separates the crushing chamber 31 from the air intake chamber 32; a one-way air valve port 351 is fixedly installed on the left side of the partition 2 35, and the air intake chamber 32 and the exhaust chamber 33 are separated by a fixed connection.

[0039] The interior of the crushing chamber 31 includes the following structure: a liquid inlet 311, which is opened on one side of the top of the stirring rod 217, and a liquid discharge port 315 is opened on one end of the stirring rod 217; a telescopic rod 312 is fixedly installed on one side of the inner wall of the crushing chamber 31, and a push plate 313 that is sealed and slidable with the crushing chamber 31 is fixedly installed at the telescopic end of the telescopic rod 312, and the end surface of the push plate 313 is equidistantly provided with paint discharge holes 314, wherein the telescopic rod 312 is made of magnetic telescopic material, which will stretch under the action of the magnetic field and can automatically shrink and recover after the magnetic field disappears, so that the easy-to-precipitate paint can continuously pass through the crushing chamber 31.

[0040] In this embodiment, when the paint containing sediment enters the crushing chamber 31 from the liquid inlet 311, the paint containing sediment in the crushing chamber 31 is pushed out by the push plate 313 and discharged from the discharge hole 314 provided on the push plate 313, so that the paint containing sediment continuously passes through the crushing chamber 31. Since the opening of the crushing chamber 31 is located at the end position of the stirring rod 217, the paint containing sediment continuously transfers to the end position of the stirring rod 217, so that the paint continuously passes through the crushing chamber 31. At the same time, compressed air enters the air intake chamber 32 through the gas inlet 321, and drives the air flow fan 346 to rotate. The air flow fan 346 drives the rotating shaft 345, the rotating rod 347 and the micro-stirring blade 348 to rotate together, and then the micro-stirring blade 348 fully stirs the easy-to-precipitate paint. The trace bubbles generated during the stirring process enter the air pressure groove 341 through the liquid-isolating breathable membrane 344, enter the exhaust chamber 33 through the air flow guide hole 3431 below the guide block 343 of the one-way air valve 342, and enter the inner layer tube through the gas outlet 331 to be discharged; thereby, the paint can be fully transferred and mixed during the stirring process, thereby improving the stirring effect.

[0041] Example 3

[0042] See also Figure 1-Figure 6 , and on the basis of Examples 1 and 2, further obtained: an air intake chamber 32 and an exhaust chamber 33, wherein the air intake chamber 32 and the exhaust chamber 33 are separated by a partition 2 35 and a one-way air valve port 351, and the one-way air valve port 351 is fixedly installed at one end of the partition 2 35; a gas inlet 321 is installed on one side of the air intake chamber 32, and a gas outlet 331 is installed on one side of the exhaust chamber 33.

[0043] In this embodiment, compressed air enters the air intake chamber 32 through the gas inlet 321, enters the exhaust chamber 33 from the one-way air valve port 351, and enters the inner tube through the gas outlet 331 and is discharged, thereby realizing the one-way inflow and outflow of compressed air to prevent the paint precipitation component 3, thereby driving the airflow fan 348 to rotate.

[0044] Example 4

[0045] See also Figure 1-Figure 6 , and on the basis of Examples 1, 2, and 3, it is further obtained that: air pressure grooves 341 are equidistantly provided on the partition 1 34, and the interior of the air pressure groove 341 includes the following structure: a one-way air valve 342, arranged at the top of the air pressure groove 341, and a guide block 343, fixedly installed on the left side of the air pressure groove 341; the outer wall of the one-way air valve 342 is provided with a liquid-isolating and breathable membrane 344; a rotating shaft 345 is rotatably connected to the middle position of the one-way air valve 342, the bottom end of the rotating shaft 345 passes through the bottom of the inner wall of the air pressure groove 341 and extends to the bottom, and an air flow fan 346 is fixedly installed, and a rotating rod 347 is fixedly connected to the top of the rotating shaft 345, and micro-stirring blades 348 are fixedly installed on the outer wall circumference of the rotating rod 347 at equal intervals; an air flow guide hole 3431 is provided at the bottom of the guide block 343.

[0046] In this embodiment, by providing a one-way air valve 342 and a liquid-isolating breathable membrane 344, the trace bubbles generated during the stirring process can enter the air pressure groove 341 in one direction through the liquid-isolating breathable membrane 344, and then enter the exhaust chamber 33 through the air flow guide hole below the guide block of the one-way air valve 342, and enter the inner layer tube through the gas outlet for discharge; the compressed air drives the air flow fan 346 to rotate, and the air flow fan 346 drives the rotating shaft 345, the rotating rod 347 and the micro stirring blade 348 to rotate together, and then the micro stirring blade 348 can fully stir the easily precipitated paint, so that the easily precipitated paint can be fully stirred and broken.

[0047] Working principle: When in use, the paint liquid enters the interior of the mixing drum 1 from the liquid inlet 113, and the air motor 212 is first started to run, and the air motor 212 drives the stirring shaft 213 to rotate, and the stirring shaft 213 drives the stirring rod 217 to stir the paint; on the one hand, during the stirring process of the stirring rod 217, because the telescopic rod 312 is made of magnetic telescopic material, it will extend under the action of the magnetic field and can automatically shrink and recover after the magnetic field disappears, the telescopic rod 312 will intermittently be within the effective coverage range of the permanent magnet block 215, thereby causing the telescopic rod 312 to extend intermittently, Thus, the telescopic rod 312 drives the push plate 313 to perform reciprocating telescopic motion. When the paint containing sediment enters the crushing chamber 31 from the liquid inlet 311, the paint containing sediment in the crushing chamber 31 is pushed out by the push plate 313 and discharged from the discharge hole 314 provided on the push plate 313, so that the paint containing sediment continuously passes through the crushing chamber 31. Since the opening of the crushing chamber 31 is located at the end position of the stirring rod 217, the paint containing sediment continuously transfers to the end position of the stirring rod 217, so that the paint continuously passes through the crushing chamber 31.

[0048] On the other hand, compressed air enters the air intake chamber 32 through the gas inlet 321, and drives the air flow fan 346 to rotate. The air flow fan 346 drives the rotating shaft 345, the rotating rod 347 and the micro-stirring blade 348 to rotate together, and then the micro-stirring blade 348 fully stirs the easy-to-precipitate paint. The trace bubbles generated during the stirring process enter the air pressure groove 341 through the liquid-isolating breathable membrane 344, enter the exhaust chamber 33 through the air flow guide hole 3431 below the guide block 343 of the one-way air valve 342, and enter the inner layer tube through the gas outlet 331 to be discharged; thereby, the paint can be fully transferred and mixed during the stirring process, thereby improving the stirring effect.

[0049] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0050] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic spraying and stirring device for easily precipitated aviation coatings, characterized in that: The invention comprises a stirring drum (1), a stirring shaft (213), an air motor (212), a stirring rod (217), a connecting block (214), and a permanent magnet block (215); the stirring drum (1) is provided with a liquid inlet (112) at the top and a liquid outlet (115) at the bottom; the stirring shaft (213) is inserted into the stirring drum (1), the top end of which is connected to the output end of the air motor (212) for driving the stirring shaft (213) to rotate, and the bottom end of which is rotatably connected to the inner wall of the stirring drum (1); the stirring rod (217) is circumferentially distributed. The stirring rod (217) is located near the bottom end of the stirring drum (1) and is connected to the stirring shaft (213); a paint precipitation prevention component (3) is arranged inside the stirring rod (217); the connecting block (214) is arranged above the stirring rod, one end of which is fixedly connected to the inner wall of the stirring drum (1), and the other end is fixedly connected to the permanent magnet block (215); the stirring rod (217) rotates with the stirring shaft (213) and is intermittently located below the permanent magnet block (215), and the magnetic force drives the paint precipitation prevention component (3) to absorb the precipitated paint and discharge it after it is crushed.

2. According to claim 1, an automatic spraying and stirring device for easily precipitated aviation coatings is characterized in that: The top of the mixing drum (1) is also provided with an exhaust port (113); the mixing shaft (213) is a double-layer sleeve structure, comprising an outer tube (2131) and an inner tube (2132); the outer tube (2131) and the inner tube (2132) are sealed and connected, and the interlayer (2130) formed by the inner wall of the outer tube (2131) and the outer wall of the inner tube (2132) is hollow, and the interior of the inner tube (2132) is hollow; a heating copper rod (218) is sealed and built into the inner tube (2132) near the bottom.

3. The automatic spraying and stirring device for easily precipitated aviation coating according to claim 2 is characterized in that: The paint precipitation prevention component (3) comprises a crushing chamber (31), wherein a liquid inlet (311) of the crushing chamber (31) is disposed on one side of the top of the stirring rod (217), and a liquid discharge port (315) is disposed on an end of the stirring rod (217) away from the stirring shaft (213); a crushing unit is disposed in the crushing chamber (31) between the liquid inlet (311) and the liquid discharge port (315); and an inner wall of the crushing chamber (31) on one side close to the stirring shaft (213) A telescopic rod (312) is fixedly installed, and a push plate (313) is fixedly installed at the telescopic end of the telescopic rod (312) and is sealed and slidable with the crushing chamber (31). The end surface of the push plate (313) is provided with paint discharge holes (314) equidistantly arranged in the circumferential direction. The telescopic rod (312) is made of a magnetic telescopic material, which will stretch under the action of a magnetic field and can automatically shrink and recover after the magnetic field disappears, so that the easily precipitated paint can be continuously crushed through the crushing unit of the crushing chamber (31).

4. The automatic spraying and stirring device for easily precipitated aviation coating according to claim 3 is characterized in that: The inner layer tube (2132) of the stirring shaft (213) is provided with a compressed air inlet interface (2134), and the top of the interlayer (2130) is provided with a compressed air outlet interface (2133); the coating precipitation prevention component (3) also includes an air intake chamber (32), an exhaust chamber (33), a partition plate 1 (34), a partition plate 2 (35), and a one-way air valve port (351); wherein the crushing chamber (31) and the air intake chamber (32) are fixedly installed with a partition plate 1 (34), and the partition plate 1 (34) separates the crushing chamber (31) from the air intake chamber (32); the partition plate 2 (35) is fixedly installed with an end away from the stirring shaft (213) The one-way air valve port (351) separates the air intake chamber (32) and the exhaust chamber (33); the crushing unit is installed in the air pressure groove of the partition plate (34), one end of which is provided with an air flow fan (346) and the other end is coaxially provided with a micro stirring blade (348), the air flow fan (346) is located in the air intake chamber (32), and the micro stirring blade (348) is located in the crushing chamber (31); the air pressure groove has a liquid-isolating and breathable structure, and the trace bubbles generated during the stirring process first enter the air intake chamber (32) through the liquid-isolating and breathable structure, and then enter the exhaust chamber (33) through the one-way air valve port (351).

5. The automatic spraying and stirring device for easily precipitated aviation coating according to claim 4 is characterized in that: The liquid-isolating and breathable structure comprises a liquid-isolating and breathable membrane (344), a one-way air valve (342), and a guide block (343); the one-way air valve (342) is arranged on the top of the air pressure groove (341), and the guide block (343) is fixedly installed on the left side of the air pressure groove (341); the outer wall of the one-way air valve (342) is provided with a liquid-isolating and breathable membrane (344).

6. The automatic spraying and stirring device for easily precipitated aviation coating according to claim 4, characterized in that: The air intake chamber (32) is in communication with the inner tube (2132); and the air exhaust chamber (33) is in communication with the interlayer (2130).

7. The automatic spraying and stirring device for easily precipitated aviation coating according to claim 1 is characterized in that: A support frame (111) is fixedly connected to the bottom of the mixing drum (1).

8. The automatic spraying and stirring device for easily precipitated aviation coating according to claim 1 is characterized in that: It also includes a protective cover (211) fixedly mounted on the top of the mixing drum (1); and an air motor (212) fixedly mounted on the top of the inner wall of the protective cover (211).

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