A grinding device for producing nano coatings

Abstract

The invention relates to the technical field of grinding equipment, and specifically to a grinding equipment for nano coating production, comprising a grinding box and a buffer mechanism arranged inside the grinding box, and also comprising a negative pressure fan, which is equipped to generate a downward negative pressure in the grinding box to prevent the nano particles after grinding from floating upward; an adjusting mechanism, which is equipped to cooperate with the grinding mechanism; a grinding block is rotated and ground on a grinding plate, and when a pressure sensor is triggered to extend an electric telescopic rod, a guide plate slides on the electric telescopic rod, and an inner tube moves upward to drive the grinding block to move upward, so that the nano particles on the grinding plate that have not been ground can enter the gap between the grinding block and the grinding plate, and when the electric telescopic rod is completely separated from the guide plate, the inner tube moves downward and rotates together with the grinding block rapidly, hits the nano particles on the grinding plate, and continues to grind, and at the same time, the grinding plate can be shaken up and down to accelerate the falling of the material and avoid clogging of the screen plate.

Description

Technical Field

[0001] The invention relates to the technical field of grinding equipment, in particular to a grinding equipment for producing nano coatings. Background Art

[0002] Nano coatings are composite materials of degradable formaldehyde and xylene. They have broad application prospects in the sintering, catalysis, sensing, and ceramic toughening of magnetic materials, electronic materials, optical materials, and high-density materials. They have special properties such as surface effect, small size effect, optical effect, quantum size effect, and macroscopic quantum size effect, which can give coatings new functions. Nanoparticles are one of the main components of nano coatings. Their size is usually between 1 and 100 nanometers. Nanoparticles have high specific surface area, high reactivity, and unique physical and chemical properties. They can form a uniform nanostructure with excellent performance on the surface of the coating. However, due to the small particle size and high surface activity of nanoparticles, they are prone to agglomeration and form larger agglomerates, which may affect the production of nano coatings.

[0003] The patent authorized by China with the announcement number CN216172788U discloses a disc-type grinding device for preparing nanoparticles, which specifically relates to the technical field of grinding devices, including a device body, a cavity is opened inside the device body, a sieve plate is arranged inside the cavity, one side of the sieve plate is attached to the inner wall of the device body, the other side of the sieve plate is fixedly connected to a fixed plate, a symmetrical reset component is arranged on the side of the fixed plate away from the sieve plate, and the two reset components are fixedly connected to the inner wall of the device body on the side away from the fixed plate, a grinding mechanism is arranged above the sieve plate, and a driving mechanism is arranged on one side of the grinding mechanism. The utility model sets a driving mechanism, and the driving mechanism drives the grinding mechanism to grind the material, and the ground material falls to the top surface of the sieve plate, and the driving mechanism cooperates with the reset component to push the sieve plate to move back and forth horizontally to screen the ground material, thereby ensuring the qualified rate of the material produced after grinding.

[0004] When the above patent is actually used, the connecting rod drives the bristles to rotate at the same speed as the turntable. After the turntable grinds the nanoparticles, the bristles clean the ground nanoparticles on the fixed disk, causing the material to fall onto the sieve plate. Since the nanoparticles have a small particle size and are extremely light after grinding, when the bristles clean the nanoparticles, it is very likely that the ground nanoparticles will fly in the cavity of the device body, causing the nanoparticles to eventually fall on other components in the cavity and fail to completely fall onto the sieve plate, affecting its screening effect. After being screened by the sieve plate, nanoparticles that do not meet the required requirements are retained on the sieve plate and need to be taken out and re-entered from the tube body to continue grinding. The secondary grinding may increase the overall working time, thereby affecting the grinding efficiency.

[0005] Therefore, the present invention provides a grinding device for producing nano coatings. Summary of the invention

[0006] In view of the problems in the prior art that one-time grinding may not be sufficient and requires secondary grinding, which may affect the grinding efficiency, and the nanoparticles after grinding may fly and affect collection, the present invention provides a grinding device for nano coating production.

[0007] The technical solution adopted by the present invention to solve the technical problem is: a grinding device for producing nano coatings, comprising a grinding box and a buffer mechanism arranged inside the grinding box, and also comprising:

[0008] The grinding mechanism located at the top of the grinding box includes a grinding block, which is driven to rotate by a spline shaft fixed to the bottom of the driving shaft, so that rotational friction is generated between the grinding block and a grinding plate slidably connected to the inner wall of the grinding box, so as to grind the agglomerated nanoparticles into tiny particles, and then drop from the sieve holes of the grinding plate to the top of the receiving plate fixed to the bottom of the grinding box;

[0009] A negative pressure fan is installed to generate a downward negative pressure in the grinding box to prevent the ground nanoparticles from floating upward;

[0010] The adjusting mechanism is assembled to cooperate with the grinding mechanism. Through the guide plate fixed on the outer wall of the spline shaft and the electric telescopic rod fixed inside the fixed seat, the spline shaft is affected by the electric telescopic rod to drive the grinding block to move up and down, so that the grinding block and the grinding plate are separated and then approached again, which is used to enhance the grinding effect and make the grinding plate vibrate.

[0011] Preferably, the grinding mechanism also includes a reducer fixedly mounted on the top of the grinding box, the reducer is connected to a driving motor, the driving shaft is arranged at the bottom of the reducer, the spline shaft is fixedly connected to the grinding block, the grinding plate includes a first ring, a second ring is fixedly connected to the bottom of the first ring, a sieve plate is fixedly connected to the inner wall of the second ring, an annular groove is provided on the outer wall of the second ring, a group of first springs are fixedly mounted on the top of the annular groove, an end of the first spring away from the top of the annular groove is fixedly connected to a mounting seat, the mounting seat is fixedly connected to the inner wall of the grinding box, the inner wall of the grinding box is also fixedly connected to a connecting ring, the connecting ring is located on the top of the grinding plate, and the connecting ring is slidably engaged with the first ring.

[0012] Preferably, the spline shaft comprises an outer tube fixedly connected to the bottom of the drive shaft, and an inner tube slidably sleeved inside the outer tube, and the bottom of the inner tube is fixedly connected to the top of the grinding block.

[0013] Preferably, the adjustment mechanism also includes a first fixed plate and a second fixed plate fixedly connected to the outer wall of the inner tube, a second spring is fixedly connected to the top of the first fixed plate, an end of the second spring away from the first fixed plate is fixedly connected to the bottom of the outer tube, and the guide plate is located between the first fixed plate and the second fixed plate.

[0014] Preferably, the fixed seat is fixedly connected to the top of the inner wall of the grinding box, the inner tube rotates and passes through the bottom of the fixed seat, a mounting plate is fixedly installed on the bottom of the inner wall of the fixed seat, the electric telescopic rod is fixedly connected to the mounting plate, the telescopic end of the electric telescopic rod cooperates with the guide plate, and a pressure sensor is provided at the bottom of the receiving plate, and the pressure sensor is electrically connected to the electric telescopic rod.

[0015] Preferably, the guide plate is spirally arranged and has a length less than half the circumference of the inner tube.

[0016] Preferably, the buffer mechanism includes a mounting groove opened at the bottom of the inner wall of the fixing seat, a third spring is fixedly installed at the bottom of the mounting groove, an end of the third spring away from the bottom of the mounting groove is fixedly connected to a rubber plate, the rubber plate cooperates with the second fixing plate, and the rubber plate is movably connected to the inner tube.

[0017] Preferably, when the second fixing plate contacts the rubber plate, the horizontal height of the telescopic end of the electric telescopic rod is lower than the horizontal height of the upper end of the guide plate.

[0018] Preferably, a feed inlet is provided on the side wall of the grinding box, and the feed inlet is located at the top of the connecting ring.

[0019] Preferably, the negative pressure fan is fixed to the bottom of the grinding box, and air ducts are respectively arranged on both sides. The air inlet of the air duct is located at the lower end of the grinding box, and a filter plate is fixedly installed at the air inlet of the air duct.

[0020] Beneficial effects of the present invention:

[0021] (1) The grinding equipment for producing nano coatings described in the present invention grinds agglomerated nanoparticles into tiny particles by rotating the grinding block on the grinding plate. When the pressure sensor detects that the weight of the nanoparticles added on the receiving plate is less than the set value within a certain period of time, the electric telescopic rod extends and contacts the bottom of the upper end of the guide plate. Under the rotation of the inner tube, the guide plate slides on the electric telescopic rod. During the process of the electric telescopic rod moving from the upper end to the lower end of the guide plate, the inner tube drives the grinding block to move upward, so that the unground nanoparticles on the grinding plate can enter the gap between the grinding block and the grinding plate. When the electric telescopic rod is completely separated from the guide plate, the inner tube moves downward and rotates together with the grinding block rapidly, hits the nanoparticles on the grinding plate, and continues to grind. At the same time, the grinding plate can be shaken up and down to accelerate the falling of the material and avoid clogging of the screen plate.

[0022] (2) In the grinding equipment for producing nano-coatings described in the present invention, when the inner tube drives the grinding block to move up and then fall, the second fixed plate contacts the rubber plate, so that the third spring is squeezed, thereby reducing the rigid friction and impact between the second fixed plate and the fixed seat, thereby extending the service life of the parts.

[0023] (3) In the grinding equipment for producing nano-coatings described in the present invention, when the grinding block rotates on the grinding plate for grinding, the air ducts on both sides of the lower end of the grinding box suck air into the grinding box, thereby generating a downward negative pressure inside the grinding box. The nanoparticles generated during the grinding process that can pass through the holes in the grinding plate can move to the bottom of the grinding plate under the action of the negative pressure fan, thereby preventing tiny nanoparticles from flying in the grinding box. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0025] Figure 1 A schematic diagram of the overall structure provided by the present invention;

[0026] Figure 2 A cross-sectional view of the internal structure provided by the present invention;

[0027] Figure 3 for Figure 2 A magnified image of point A;

[0028] Figure 4 An internal cross-sectional view of a grinding box provided by the present invention;

[0029] Figure 5 A schematic diagram of the connection between the grinding plate and the connecting ring provided by the present invention;

[0030] Figure 6 A schematic diagram of the connection between the grinding block and the grinding plate provided by the present invention;

[0031] Figure 7 for Figure 6 A magnified view of point B;

[0032] Figure 8 for Figure 6 Enlarged view of point C;

[0033] Fig. 9 A schematic diagram of the connection between the grinding mechanism and the adjusting mechanism provided by the present invention;

[0034] Fig.10 This is a schematic diagram of the connection between the adjustment mechanism and the buffer mechanism provided by the present invention.

[0035] In the figure: 1. grinding box; 11. feed inlet; 12. receiving plate; 2. grinding mechanism; 21. reducer; 22. drive shaft; 23. spline shaft; 231. outer tube; 232. inner tube; 24. grinding block; 25. grinding plate; 251. first circular ring; 252. second circular ring; 253. sieve plate; 26. annular groove; 27. connecting ring; 28. mounting seat; 29. ​​first spring; 210. negative pressure fan; 211. air duct; 212. filter plate; 3. adjusting mechanism; 31. fixing seat; 32. first fixing plate; 33. second fixing plate; 34. second spring; 35. guide plate; 36. mounting plate; 37. electric telescopic rod; 38. pressure sensor; 4. buffer mechanism; 41. mounting groove; 42. third spring; 43. rubber plate. DETAILED DESCRIPTION

[0036] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0037] Example: Figure 1-Figure 10 As shown, a grinding device for producing nano coatings according to the present invention comprises a grinding box 1 and a buffer mechanism 4 arranged inside the grinding box 1, and also comprises a grinding mechanism 2 located at the top of the grinding box 1, which comprises a grinding block 24. The grinding mechanism 2 drives the grinding block 24 to rotate through a spline shaft 23 fixed to the bottom of a driving shaft 22, so that a rotational friction is generated between the grinding block 24 and a grinding plate 25 slidably connected to the inner wall of the grinding box 1, which is used to grind the agglomerated nano particles into tiny particles, and drop them from the sieve holes of the grinding plate 25 to the grinding plate 25 fixed inside the grinding box 1. The top of the receiving plate 12 at the bottom; the negative pressure fan 210, which is equipped to generate a downward negative pressure in the grinding box 1 to prevent the nanoparticles after grinding from floating upward; the adjustment mechanism 3, which is equipped to cooperate with the grinding mechanism 2, through the guide plate 35 fixed to the outer wall of the spline shaft 23 and the electric telescopic rod 37 fixed inside the fixed seat 31, so that the spline shaft 23 is affected by the electric telescopic rod 37 to drive the grinding block 24 to move up and fall, so that the grinding block 24 is separated from the grinding plate 25 and then approaches again, which is used to enhance the grinding effect and make the grinding plate 25 vibrate.

[0038] In this embodiment, the negative pressure fan 210 and the drive shaft 22 are started to rotate the grinding block 24 above the grinding plate 25. At the same time, the negative pressure fan 210 generates a downward negative pressure in the grinding box 1. When the nanoparticles enter the grinding box 1 from the feed inlet 11, the nanoparticles fall onto the grinding plate 25. Some of the nanoparticles enter the gap between the grinding block 24 and the grinding plate 25. Under the rotation and grinding of the grinding block 24, tiny particles are formed. Under the suction of the negative pressure fan 210 at the bottom of the grinding plate 25, the ground nanoparticles are prevented from floating upward. When the number of nanoparticles falling onto the receiving plate 12 is reduced to a certain extent, the pressure sensor 38 is triggered to extend the electric telescopic rod 37. At this time, the inner tube 232 is still rotating. Therefore, the upper end of the guide plate 35 will contact the electric telescopic rod 37. The telescopic end of the electric telescopic rod 37 is in contact with the inner tube 232. In the process from the upper end to the lower end of the guide plate 35, since the height of the electric telescopic rod 37 remains unchanged, the inner tube 232 will drive the grinding block 24 to gradually move upward, thereby increasing the distance of the gap between the grinding block 24 and the grinding plate 25, and the unground nanoparticles enter the gap. When the electric telescopic rod 37 is separated from the guide plate 35, the grinding block 24 quickly falls down, hits the nanoparticles on the grinding plate 25, and causes the grinding plate 25 to move downward. When the electric telescopic rod 37 is separated from the guide plate 35, the grinding block 24 will rotate and grind at the same height. After that, the guide plate 35 contacts the electric telescopic rod 37 again under the continuous rotation of the inner tube 232, and the grinding block 24 moves upward again. The grinding plate 25 is reset under the action of the first spring 29. Under this cyclic motion, the grinding plate 25 is in an intermittent up and down shaking state, accelerating the falling of the nanoparticles.

[0039] like Figure 2-Figure 6As shown, the grinding mechanism 2 also includes a reducer 21 fixedly installed on the top of the grinding box 1, the reducer 21 is connected to a driving motor, a driving shaft 22 is arranged at the bottom of the reducer 21, a spline shaft 23 is fixedly connected to the grinding block 24, and the grinding plate 25 includes a first ring 251, a second ring 252 is fixedly connected to the bottom of the first ring 251, a sieve plate 253 is fixedly connected to the inner wall of the second ring 252, an annular groove 26 is opened on the outer wall of the second ring 252, a group of first springs 29 are fixedly installed on the top of the annular groove 26, and an end of the first spring 29 away from the top of the annular groove 26 is fixedly connected to a mounting seat 28, and the mounting seat 28 is fixedly connected to the inner wall of the grinding box 1 The inner wall of the grinding box 1 is also fixedly connected with a connecting ring 27, which is located at the top of the grinding plate 25, and the connecting ring 27 is slidably engaged with the first circular ring 251; the spline shaft 23 includes an outer tube 231 fixedly connected to the bottom of the driving shaft 22, and an inner tube 232 slidably sleeved inside the outer tube 231, and the bottom of the inner tube 232 is fixedly connected to the top of the grinding block 24; a feed port 11 is provided on the side wall of the grinding box 1, and the feed port 11 is located at the top of the connecting ring 27; a negative pressure fan 210 is fixed to the bottom of the grinding box 1, and air ducts 211 are respectively provided on both sides, the air inlet of the air duct 211 is located at the lower end of the grinding box 1, and a filter plate 212 is fixedly installed at the air inlet of the air duct 211.

[0040] In this embodiment, after the driving motor on the reducer 21 is started, the outer tube 231 of the spline shaft 23 drives the inner tube 232 to rotate, so that the grinding block 24 rotates and grinds on the grinding plate 25, and the large nanoparticles are ground into tiny particles. Under the action of the adjustment mechanism 3, when the grinding block 24 moves up and then falls close to the grinding plate 25, the first spring 29 is squeezed, so that the grinding plate 25 slides downward, and the upper end ring part of the grinding plate 25 slides downward in the connecting ring 27. When the nanoparticles enter the grinding box 1, the negative pressure fan 210 starts to generate a downward negative pressure in the grinding box 1, so that the nanoparticles that meet the specifications can move to the bottom of the grinding plate 25 through the holes of the grinding plate 25, so as to prevent the ground nanoparticles from floating upward. The negative pressure fan 210 only generates a downward negative pressure in the grinding box 1, and the filter plate 212 at the air inlet of the air duct 211 prevents the nanoparticles from entering the negative pressure fan 210.

[0041] like Figure 5-Figure 10As shown, the adjustment mechanism 3 also includes a first fixed plate 32 and a second fixed plate 33 fixedly connected to the outer wall of the inner tube 232, a second spring 34 is fixedly connected to the top of the first fixed plate 32, an end of the second spring 34 away from the first fixed plate 32 is fixedly connected to the bottom of the outer tube 231, and a guide plate 35 is located between the first fixed plate 32 and the second fixed plate 33; the fixed seat 31 is fixedly connected to the top of the inner wall of the grinding box 1, the inner tube 232 rotates to pass through the bottom of the fixed seat 31, a mounting plate 36 is fixedly installed on the bottom of the inner wall of the fixed seat 31, an electric telescopic rod 37 is fixedly connected to the mounting plate 36, the telescopic end of the electric telescopic rod 37 cooperates with the guide plate 35, a pressure sensor 38 is provided at the bottom of the receiving plate 12, and the pressure sensor 38 is electrically connected to the electric telescopic rod 37.

[0042] In this embodiment, when the pressure sensor 38 below the receiving plate 12 detects that the weight of the nanoparticles added to the receiving plate 12 is less than the set value within a certain period of time, the electric telescopic rod 37 is controlled to extend. When the inner tube 232 rotates, the upper bottom of the guide plate 35 contacts the telescopic end of the electric telescopic rod 37, and under the continued rotation of the inner tube 232, the bottom of the guide plate 35 slides on the electric telescopic rod 37. In this process, the inner tube 232 drives the grinding block 24 to move upward. At this time, the inner tube 232 slides upward in the outer tube 231, and the second spring 34 is compressed. When the electric telescopic rod 37 is separated from the guide plate 35, the second spring 34 is compressed. The elastic force of 34 is released, and at the same time, the inner tube 232 loses the support of the electric telescopic rod 37, causing the grinding block 24 to move downward rapidly. Under the action of the buffer mechanism 4, after the height of the inner tube 232 is stabilized, the nanoparticles are rotated and ground at a stable height. When the electric telescopic rod 37 contacts the bottom of the upper end of the guide plate 35 again, the inner tube 232 drives the grinding block 24 to move upward again. Therefore, when the electric telescopic rod 37 is extended, the inner tube 232 will continue to rotate so that the height of the grinding block 24 is always in an intermittent motion state of moving up and down. When the electric telescopic rod 37 is shortened, the grinding block 24 rotates while maintaining the same height.

[0043] like Figure 7 As shown, the guide plate 35 is spirally arranged and its length is less than half of the circumference of the inner tube 232 . When the second fixing plate 33 contacts the rubber plate 43 , the horizontal height of the telescopic end of the electric telescopic rod 37 is lower than the horizontal height of the upper end of the guide plate 35 .

[0044] In this embodiment, when the pressure sensor 38 is triggered, the electric telescopic rod 37 extends, and when the inner tube 232 rotates to a certain angle, the telescopic end of the electric telescopic rod 37 contacts the bottom of the upper end of the guide plate 35. When the inner tube 232 rotates, the guide plate 35 slides on the electric telescopic rod 37, thereby causing the inner tube 232 to move up together with the grinding block 24. When the electric telescopic rod 37 is separated from the guide plate 35, the inner tube 232 drives the grinding block 24 to move down quickly. During the process of the inner tube 232 rotating one circle, the height of the inner tube 232 remains unchanged for more than half of the rotation process. Therefore, in this part of the rotation, the size of the gap between the grinding block 24 and the grinding plate 25 remains unchanged, so that the nanoparticles can be effectively extruded and ground between the grinding block 24 and the grinding plate 25.

[0045] like Fig.10 As shown, the buffer mechanism 4 includes a mounting groove 41 opened at the bottom of the inner wall of the fixing seat 31, a third spring 42 is fixedly installed at the bottom of the mounting groove 41, and a rubber plate 43 is fixedly connected to one end of the third spring 42 away from the bottom of the mounting groove 41, the rubber plate 43 cooperates with the second fixing plate 33, and the rubber plate 43 is movably connected to the inner tube 232.

[0046] In this embodiment, when the inner tube 232 moves up and then falls down quickly, the second fixed plate 33 collides with the rubber plate 43 when moving down, and squeezes the third spring 42 at the bottom of the rubber plate 43, so that the third spring 42 is compressed. When the third spring 42 returns to a stable state, the height of the grinding block 24 remains stable and rotates at the same time, which can reduce the rigid collision between the second fixed plate 33 and the fixed seat 31.

[0047] Working principle: When in use, the drive motor and the negative pressure fan 210 connected to the reducer 21 are started, and the negative pressure fan 210 generates a downward negative pressure inside the grinding box 1. When the nanoparticles enter the grinding box 1 from the feed inlet 11, most of the nanoparticles are retained on the grinding plate 25, and a small part enters the gap between the grinding block 24 and the grinding plate 25. When the grinding block 24 rotates, the agglomerated nanoparticles are ground into tiny nanoparticles. Under the action of the negative pressure fan 210, the nanoparticles that meet the specifications fall onto the receiving plate 12 through the holes on the grinding plate 25;

[0048] When the pressure sensor 38 below the receiving plate 12 detects that the weight of the nanoparticles added to the receiving plate 12 is less than the set value within a certain period of time, the electric telescopic rod 37 is controlled to extend from the mounting plate 36. When the inner tube 232 drives the grinding block 24 to rotate to a certain angle, the bottom of the upper end of the guide plate 35 on the outer wall of the inner tube 232 contacts the telescopic end of the electric telescopic rod 37. The height of the electric telescopic rod 37 remains unchanged. Therefore, when the inner tube 232 continues to rotate, the electric telescopic rod 37 slides at the bottom of the guide plate 35. In the process, the inner tube 232 drives the grinding block 24 to move upward, the inner tube 232 slides upward in the outer tube 231, the second spring 34 is compressed, and the distance between the grinding block 24 and the grinding plate 25 increases, so that the larger nanoparticles that have not been ground on the grinding plate 25 enter the gap between the grinding block 24 and the grinding plate 25. When the electric telescopic rod 37 is separated from the guide plate 35, the inner tube 232 loses the support of the electric telescopic rod 37, and the elastic force of the second spring 34 is released, quickly pushing the inner tube 232 downward. The inner tube 232 moves downward, so that the grinding block 24 quickly impacts the grinding plate 25, so that the larger nanoparticles that have not been ground on the grinding plate 25 are broken, and the grinding plate 25 is shaken up and down to prevent the holes of the grinding plate 25 from being blocked; since most of the nanoparticles enter the gap between the grinding block 24 and the grinding plate 25, the grinding block 24 squeezes the grinding plate 25 at this time, so that the first spring 29 is compressed, and the grinding plate 25 moves downward. When the electric telescopic rod 37 contacts the guide plate 35 again, the grinding block 24 moves upward and falls again. In this cycle, the grinding plate 25 produces an intermittent shaking effect, which accelerates the falling of the nanoparticles and prevents the grinding plate 25 from being blocked; when the inner tube 232 moves downward to drive the grinding block 24 to fall, the second fixed plate 33 contacts the rubber plate 43, and the third spring 42 is squeezed, reducing the rigid collision between the second fixed plate 33 and the bottom of the fixing seat 31; when the falling speed of the nanoparticles is in a normal and stable state, the electric telescopic rod 37 is reset, and the grinding block 24 maintains a single state to grind the nanoparticles.

[0049] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A grinding device for producing nano coatings, comprising a grinding box and a buffer mechanism arranged inside the grinding box, characterized in that: Also includes The grinding mechanism located at the top of the grinding box includes a grinding block, which is driven to rotate by a spline shaft fixed to the bottom of the driving shaft, so that rotational friction is generated between the grinding block and a grinding plate slidably connected to the inner wall of the grinding box, so as to grind the agglomerated nanoparticles into tiny particles, and then drop from the sieve holes of the grinding plate to the top of the receiving plate fixed to the bottom of the grinding box; A negative pressure fan is installed to generate a downward negative pressure in the grinding box to prevent the ground nanoparticles from floating upward; The adjusting mechanism is assembled to cooperate with the grinding mechanism, and the guide plate fixed to the outer wall of the spline shaft cooperates with the electric telescopic rod fixed inside the fixing seat, so that the spline shaft is affected by the electric telescopic rod to drive the grinding block to move up and down, so that the grinding block and the grinding plate are separated and then approached again, so as to enhance the grinding effect and make the grinding plate vibrate; The grinding mechanism also includes a reducer fixedly installed on the top of the grinding box, the reducer is connected to a driving motor, the driving shaft is arranged at the bottom of the reducer, the spline shaft is fixedly connected to the grinding block, the grinding plate includes a first circular ring, the bottom of the first circular ring is fixedly connected to a second circular ring, the inner wall of the second circular ring is fixedly connected to a screen plate, the outer wall of the second circular ring is provided with an annular groove, a group of first springs are fixedly installed on the top of the annular groove, one end of the first spring away from the top of the annular groove is fixedly connected to a mounting seat, the mounting seat is fixedly connected to the inner wall of the grinding box, the inner wall of the grinding box is also fixedly connected to a connecting ring, the connecting ring is located at the top of the grinding plate, and the connecting ring is slidably engaged with the first circular ring; The spline shaft comprises an outer tube fixedly connected to the bottom of the driving shaft, and an inner tube slidably sleeved inside the outer tube, and the bottom of the inner tube is fixedly connected to the top of the grinding block.

2. A grinding device for nano coating production according to claim 1, characterized in that: The adjustment mechanism also includes a first fixing plate and a second fixing plate fixedly connected to the outer wall of the inner tube, a second spring fixedly connected to the top of the first fixing plate, an end of the second spring away from the first fixing plate is fixedly connected to the bottom of the outer tube, and the guide plate is located between the first fixing plate and the second fixing plate.

3. A grinding device for nano coating production according to claim 2, characterized in that: The fixed seat is fixedly connected to the top of the inner wall of the grinding box, the inner tube rotates and passes through the bottom of the fixed seat, a mounting plate is fixedly installed on the bottom of the inner wall of the fixed seat, the electric telescopic rod is fixedly connected to the mounting plate, the telescopic end of the electric telescopic rod cooperates with the guide plate, and a pressure sensor is arranged at the bottom of the receiving plate, and the pressure sensor is electrically connected to the electric telescopic rod.

4. A grinding device for nano coating production according to claim 3, characterized in that: The guide plate is spirally arranged, and its length is less than half of the circumference of the inner tube.

5. The grinding equipment for nano coating production according to claim 2, characterized in that: The buffer mechanism includes a mounting groove opened at the bottom of the inner wall of the fixing seat, a third spring is fixedly installed at the bottom of the mounting groove, one end of the third spring away from the bottom of the mounting groove is fixedly connected to a rubber plate, the rubber plate cooperates with the second fixing plate, and the rubber plate is movably connected to the inner tube.

6. The grinding equipment for nano coating production according to claim 3, characterized in that: When the second fixing plate contacts the rubber plate, the horizontal height of the telescopic end of the electric telescopic rod is lower than the horizontal height of the upper end of the guide plate.

7. The grinding equipment for nano coating production according to claim 1, characterized in that: The side wall of the grinding box is provided with a feed inlet, and the feed inlet is located at the top of the connecting ring.

8. The grinding equipment for nano coating production according to claim 1, characterized in that: The negative pressure fan is fixed to the bottom of the grinding box, and air ducts are respectively arranged on both sides. The air inlet of the air duct is located at the lower end of the grinding box, and a filter plate is fixedly installed on the air inlet of the air duct.

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