Production and processing technology of antistatic coating

Abstract

The invention relates to the technical field of antistatic coating processing, and discloses an antistatic coating production and processing technology, which is characterized by comprising the following steps: raw material pretreatment: weighing an antistatic agent, film-forming resin, a pigment filler and an auxiliary agent according to a preset ratio, and checking that each raw material has no caking and impurity for later use; ball-milling dispersion: putting the pretreated raw materials into a grinding device, controlling the rotating speed of the grinding device and working; stirring and mixing in vacuum: transferring the ball-milled material into a stirring kettle; the stirred and mixed materials are subjected to fine grinding through a three-roller grinding machine, antistatic performance and fineness index detection is conducted on a coating finished product after grinding is completed, packaging is conducted after the coating finished product is qualified, heat generated by grinding is taken away in the working process of a grinding device, the situation that the chemical structure of an antistatic agent is changed due to heat accumulation is avoided, and the service life of the coating is prolonged. The performance of the antistatic agent is ensured, and the quality of the antistatic coating is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of antistatic coating processing, and more specifically, it relates to a production and processing technology for antistatic coatings. Background Art

[0002] In modern industrial production and daily life, the harm caused by static electricity problems has become increasingly prominent, and the application of antistatic coatings has thus become extremely crucial; antistatic coatings are a type of functional coating that can effectively prevent the accumulation of static electricity on the surface of objects. The principle is to add antistatic agents to the coating to form conductive channels inside the coating and conduct the generated static electricity away in a timely manner.

[0003] In the field of electronic device manufacturing, static electricity may cause irreparable damage to precision electronic components; for example, in a chip production workshop, a tiny static electricity discharge may cause a short circuit or performance degradation in the internal circuit of the chip, seriously affecting product quality and production efficiency; in the petrochemical industry, the risk of fires and explosions caused by static electricity is extremely high; during the transportation and storage of oil products, if the static electricity generated by the friction between the oil products and the pipeline and container walls cannot be removed in a timely manner, once it accumulates to a certain extent, it may cause catastrophic consequences under suitable conditions; in addition, in industries such as textiles and printing, static electricity will cause fabrics to adsorb dust and papers to stick together, affecting product quality and the smooth progress of the production process.

[0004] Currently, during the production process of traditional antistatic coatings, the solid antistatic agent needs to be ground first to make its particle size appropriate before it can be used. However, heat is generated during the grinding process, and the accumulation of these heats is likely to change the chemical structure of the antistatic agent, reducing its antistatic performance. As a result, after the antistatic coating is manufactured, it cannot achieve the expected effect. Therefore, we have designed a production and processing technology for antistatic coatings. Summary of the Invention

[0005] The present invention provides a production and processing technology for antistatic coatings, which solves the technical problem in the related art that heat is easily generated during the process of grinding the solid antistatic agent, and the accumulation of heat will change the chemical structure of the antistatic agent, reducing its antistatic performance, resulting in the antistatic coating finally produced not being able to achieve the expected effect.

[0006] The present invention provides a production and processing technology for antistatic coatings, including the following steps: Step 1, raw material pretreatment: Weigh the antistatic agent, film-forming resin, pigment filler, and additives according to a preset ratio, and check that each raw material has no lumps or impurities before setting aside for use; Step 2, ball milling and dispersion: Put the pretreated raw materials into a grinding device, control the rotation speed of the grinding device, and operate for 1 - 3 hours to make the particle size of the material reach 1 - 10 microns; Step 3, Vacuum Stirring and Mixing: Transfer the ball-milled materials into the stirring kettle, and stir and mix them at a rotation speed of 100 - 300 revolutions per minute for 0.5 - 1.5 hours under a vacuum degree of -0.06 MPa to -0.09 MPa; Step 4, Fine Grinding and Detection: Fine-grind the stirred and mixed materials with a three-roll grinder, control the grinding pressure at 0.5 - 2 MPa, and after grinding, detect the antistatic performance and fineness index of the coating finished product. After passing the inspection, it is packaged.

[0007] As a further optimized solution of the present invention, the grinding device includes an installation cover; a driving mechanism fixedly installed on the installation cover, which includes a grinding cylinder with filter holes and an adjustment component; a gas supply mechanism fixedly installed on the installation cover, which includes a one-way air outlet pipe located above the grinding cylinder; a nozzle fixedly installed on the one-way air outlet pipe; when the driving mechanism drives the grinding cylinder to rotate and grind the solid antistatic agent, the nozzle intermittently guides the solid antistatic agent particles to pass through the filter holes under the action of the gas supply mechanism; a partition fixedly installed on the adjustment component and dividing the interior of the grinding cylinder into multiple grinding spaces; during the operation of the grinding cylinder to grind the solid antistatic agent, the driving mechanism cooperates with the gas supply mechanism to intermittently change the sizes of the multiple grinding spaces.

[0008] As a further optimized solution of the present invention, the driving mechanism includes an installation frame fixedly connected to the installation cover; a motor fixedly installed on the installation frame, and a second gear is fixedly installed on its power output shaft; a first driving column rotatably installed on the installation cover and fixedly connected to the grinding cylinder, and a first gear meshing with the second gear is also fixedly installed thereon.

[0009] As a further optimized solution of the present invention, the adjustment component includes an installation box fixedly connected to the grinding cylinder; a first screw rod rotatably installed on the installation box, and a first forward and reverse screw rod is fixedly installed thereon; a second forward and reverse screw rod fixedly installed on the first forward and reverse screw rod; a second screw rod rotatably installed on the installation box and fixedly connected to the second forward and reverse screw rod; multiple first threaded blocks respectively threadedly connected to the first screw rod, the first forward and reverse screw rod, the second screw rod, and the second forward and reverse screw rod, and slidably connected to the installation box and fixedly connected to the partition.

[0010] As a further optimized solution of the present invention, multiple installation grooves are opened on the partition, multiple magnetic blocks are arranged inside the installation grooves, threaded columns are fixedly installed on the magnetic blocks, and the threaded columns are threadedly connected to the partition.

[0011] As a further optimized solution of the present invention, the air supply mechanism includes an air supply box fixedly connected to the installation cover; a piston assembly installed on the air supply box; a sliding pipe fixedly installed on the piston assembly and slidably connected to a one-way air outlet pipe, the one-way air outlet pipe is rotatably connected to the installation cover, and a driving disk is fixedly installed on the one-way air outlet pipe.

[0012] As a further optimized solution of the present invention, the piston assembly includes a second rotating shaft rotatably connected to the grinding cylinder; a fourth gear fixedly installed on the second rotating shaft, which meshes with a third gear; a reciprocating lead screw rotatably installed on the air supply box and fixedly connected to the third gear; a second threaded block threadedly connected to the reciprocating lead screw, on which a moving pipe is fixedly installed; a piston slidably installed inside the air supply box and fixedly connected to the moving pipe.

[0013] As a further optimized solution of the present invention, a second one-way pipe is fixedly installed on the left side of the air supply box, the second one-way pipe extends to the outside of the installation cover, a first one-way pipe is fixedly installed on the top of the air supply box, and the first one-way pipe extends to the outside of the installation cover.

[0014] As a further optimized solution of the present invention, the air supply mechanism further includes an exhaust pipe fixedly connected to the air supply box, through holes are provided on the exhaust pipe; a first sliding rod slidably installed on the exhaust pipe, on which a driving frame is fixedly installed; a first spring sleeved on the first sliding rod, one end is fixedly connected to the air supply box, and the other end is fixedly connected to the driving frame; a driving ring fixedly installed inside the driving frame, a driving block is slidably installed therein; a second driving column, on which a first rotating shaft fixedly connected to the first screw rod is installed, and a trajectory groove interacting with the driving block is provided on its surface.

[0015] As a further optimized solution of the present invention, a second sliding rod is fixedly installed at the bottom of the air supply box, a sliding plate is slidably installed on the sliding pipe, the top of the sliding plate is connected to the air supply box through a second spring, an impact column is fixedly installed at the bottom of the sliding plate, and magnetic plates are inlaid on both the sliding plate and the driving frame.

[0016] The beneficial effects of the present invention are as follows: 1. For the anti-static coating production and processing process of the present invention, the grinding cylinder is driven to rotate by a motor, so that the grinding balls and the solid anti-static agent are fully ground; the piston assembly in the air supply mechanism operates driven by the grinding cylinder, discharges the air in the air supply box into the sliding pipe, and sprays out from the nozzle through the one-way air outlet pipe; the sprayed gas not only accelerates the discharge of the ground solid anti-static agent, but also drives the gas flow in the grinding cylinder, effectively taking away the heat generated by grinding, avoiding the change of the chemical structure of the anti-static agent due to heat accumulation, ensuring the performance of the anti-static agent, and improving the quality of the anti-static coating.

[0017] 2. In the production and processing process of the antistatic coating according to the present invention, when the driving mechanism works, it drives the air supply mechanism to operate. The gas in the exhaust pipe of the air supply mechanism pushes the first sliding rod and the driving frame to move. The driving block rotates the first rotating shaft through the track groove, and then drives the first screw rod to rotate, so that the first threaded block drives the partition plate to move, accurately changing the size of the grinding space. When the grinding space becomes smaller, the discharge of the solid antistatic agent and grinding are accelerated. When the space becomes larger, the grinding balls and the solid antistatic agent are more evenly dispersed, achieving more sufficient grinding, improving the grinding efficiency and the quality of the antistatic agent, and enhancing the performance of the antistatic coating.

[0018] 3. In the production and processing process of the antistatic coating according to the present invention, the magnetic blocks installed on the partition plate can adsorb the impurities generated by the wear of the grinding balls, prevent them from mixing into the solid antistatic agent, ensure the purity of the antistatic agent, and improve the quality of the antistatic coating. At the same time, the slight suction force generated by the magnetic blocks on the grinding balls can change the movement trajectory of the grinding balls, so that the grinding balls can contact the solid antistatic agent more comprehensively during the grinding process, avoiding the occurrence of grinding dead corners, further improving the grinding effect, and helping to enhance the antistatic performance of the antistatic coating. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the process flow chart of the production and processing process of the present invention; Figure 2 is the overall structural schematic diagram of the grinding device of the present invention; Figure 3 is Figure 2 the enlarged view at A in Figure 4 is the internal structural schematic diagram of the installation cover of the present invention; Figure 5 is Figure 4 the enlarged view at B in Figure 6 is Figure 4 the enlarged view at C in Figure 7 is Figure 4 the enlarged view at D in Figure 8 is the structural schematic diagram of the grinding cylinder of the present invention; Figure 9 is the connection schematic diagram of the partition plate and the adjustment component of the present invention; Figure 10 is Figure 9 the enlarged view at E in Figure 11 is the connection schematic diagram of the exhaust pipe and the first sliding rod of the present invention; Figure 12 is the internal structural schematic diagram of the moving pipe of the present invention; Figure 13 is the connection schematic diagram of the partition plate and the magnetic block of the present invention.

[0020] In the figure: 1, storage base; 2, mounting cover; 3, drive mechanism; 301, motor; 302, mounting frame; 303, first gear; 304, first driving column; 305, second gear; 4, grinding mechanism; 401, first rotating shaft; 402, grinding cylinder; 403, mounting box; 404, filtering holes; 405, cylinder door; 406, magnetic block; 407, partition board; 408, first threaded block; 409, first screw rod; 410, first forward and reverse screw rod; 411, second screw rod; 412, second forward and reverse screw rod; 5, air supply mechanism; 501, drive disc; 502, sliding pipe; 503, first one-way pipe; 504, one-way air outlet pipe; 505, air supply box; 506, piston; 507, second one-way pipe; 508, drive ring; 509, track groove; 510, second driving column; 511, driving block; 512, driving frame; 513, first sliding rod; 514, first spring; 515, exhaust pipe; 516, nozzle; 517, second spring; 518, impact column; 519, sliding plate; 520, second sliding rod; 521, moving pipe; 522, reciprocating screw rod; 523, second threaded block; 524, third gear; 525, fourth gear; 526, second rotating shaft. Detailed implementation manners

[0021] Now, the subject matter described herein will be discussed with reference to exemplary embodiments. It should be understood that discussing these embodiments is only to enable those skilled in the art to better understand and thus implement the subject matter described herein. Without departing from the scope of protection of the content of this specification, changes can be made to the functions and arrangements of the elements discussed. Each example can omit, substitute, or add various processes or components as needed. Additionally, the features described in some examples can also be combined in other examples.

[0022] As Figure 1 shown, an antistatic coating production and processing process according to an embodiment of the present invention is characterized by including the following steps: Step 1, raw material pretreatment: Weigh the antistatic agent, film-forming resin, pigment filler, and additive according to a preset ratio, and reserve them after checking that there are no lumps or impurities in each raw material. Step 2, ball milling and dispersion: Put the pretreated raw materials into a grinding device, control the rotation speed of the grinding device, and work for 1 - 3 hours to make the particle size of the material reach 1 - 10 microns. Step 3, vacuum stirring and mixing: Transfer the ball-milled material to a stirring kettle, and stir and mix it at a rotation speed of 100 - 300 revolutions per minute for 0.5 - 1.5 hours under a vacuum degree of -0.06 MPa to -0.09 MPa. Step 4, Fine Grinding and Detection: The stirred and mixed material is finely ground by a three-roll grinder, with the grinding pressure controlled at 0.5 - 2 MPa. After grinding, the antistatic performance and fineness index of the paint product are detected, and after passing the inspection, it is packaged.

[0023] As Figures 2 to 13 shown, the grinding device includes a mounting cover 2; a driving mechanism 3 is fixedly installed on the mounting cover 2, which includes a grinding cylinder 402 with a filter hole 404 and an adjustment component; a gas supply mechanism 5 is fixedly installed on the mounting cover 2, which includes a one-way air outlet pipe 504 located above the grinding cylinder 402; a nozzle 516 is fixedly installed on the one-way air outlet pipe 504; when the driving mechanism 3 drives the grinding cylinder 402 to rotate and grind the solid antistatic agent, the nozzle 516 intermittently guides the solid antistatic agent particles to pass through the filter hole 404 under the action of the gas supply mechanism 5; a partition plate 407 is fixedly installed on the adjustment component and divides the interior of the grinding cylinder 402 into multiple grinding spaces; during the process of the grinding cylinder 402 running to grind the solid antistatic agent, the driving mechanism 3 cooperates with the gas supply mechanism 5 to intermittently change the sizes of the multiple grinding spaces.

[0024] It should be noted that as mentioned in the step of the storage base 1, before using the solid antistatic agent, it needs to be ground by a grinding device so that its particle size meets the standard requirements before subsequent operations can be carried out. When grinding the solid antistatic agent, the door of the mounting cover 2 can be opened first, and then the door 405 of the grinding cylinder 402 can be opened, and the solid antistatic agent can be placed inside the grinding cylinder 402. Subsequently, close the door of the mounting cover 2 and the door 405. Since there are grinding balls inside the grinding cylinder 402, when the driving mechanism 3 runs to drive the grinding cylinder 402 to rotate, the grinding balls and the solid antistatic agent inside the grinding cylinder 402 will both roll, so that the grinding balls will continuously squeeze and rub against the solid antistatic agent until the solid antistatic agent is ground into the required particle size. During the operation of the driving mechanism 3, it will also drive the gas supply mechanism 5 to move, so that the gas supply mechanism 5 will intermittently supply gas to the inside of the grinding cylinder 402, and the gas will be discharged from the top of the grinding cylinder 402 to the bottom of the grinding cylinder 402, thereby taking away the solid antistatic agent inside the grinding cylinder 402 and accelerating the discharge of the ground solid antistatic agent. During the operation of the gas supply mechanism 5, it will also drive the adjustment component, and the adjustment component will move the multiple partition plates 407, so that the sizes of the originally set grinding spaces will change. When the space becomes smaller, the gas in this space will be discharged, accelerating the discharge of the solid antistatic agent. The reduction of the space can also accelerate grinding and improve the grinding effect. When the space becomes larger, the dispersion positions of the grinding balls and the solid antistatic agent can be changed, enabling more sufficient grinding.

[0025] As Figure 3 and Figure 4As shown, the driving mechanism 3 includes a mounting bracket 302 fixedly connected to the mounting cover 2; a motor 301 is fixedly mounted on the mounting bracket 302, and a second gear 305 is fixedly mounted on its power output shaft; a first driving column 304 is rotatably mounted on the mounting cover 2 and fixedly connected to the grinding cylinder 402, and a first gear 303 meshing with the second gear 305 is also fixedly mounted thereon.

[0026] It should be noted that after the solid antistatic agent is placed inside the grinding cylinder 402, the motor 301 is started. The power output shaft of the motor 301 will drive the second gear 305 to rotate. The second gear 305 will drive the first gear 303 to rotate. The first gear 303 will cause the first driving column 304 to rotate. The rotation of the first driving column 304 will drive the grinding cylinder 402 to rotate. In this way, the grinding cylinder 402 will cause the grinding balls placed inside to flip and continuously squeeze and contact the solid antistatic agent, so that the solid antistatic agent is ground and crushed until the solid antistatic agent is ground well and discharged from the filter holes 404.

[0027] As Figure 8 and Figure 9 As shown, the adjusting assembly includes a mounting box 403 fixedly connected to the grinding cylinder 402; a first screw rod 409 is rotatably mounted on the mounting box 403, and a first forward and reverse screw rod 410 is fixedly mounted thereon; a second forward and reverse screw rod 412 is fixedly mounted on the first forward and reverse screw rod 410; a second screw rod 411 is rotatably mounted on the mounting box 403 and fixedly connected to the second forward and reverse screw rod 412; a plurality of first threaded blocks 408 are respectively threadedly connected to the first screw rod 409, the first forward and reverse screw rod 410, the second screw rod 411, and the second forward and reverse screw rod 412, and are slidably connected to the mounting box 403 and fixedly connected to the partition plate 407.

[0028] It should be noted that when the driving mechanism 3 starts to work and rotates the grinding cylinder 402, it will also drive the air supply mechanism 5 to operate. When the air supply mechanism 5 is operating, it will not only supply air flow to the grinding cylinder 402, but also drive the first screw 409 to rotate. The first screw 409 will drive the first positive and negative screw 410, the second screw 411, and the second positive and negative screw 412 to rotate together. Since the threads of the first screw 409 and the second screw 411 are opposite, the first thread blocks 408 on the first screw 409 and the second screw 411 will move in opposite directions. In this way, the two grinding spaces formed by the partition plate 407 and the side wall of the grinding cylinder 402 will continuously become smaller. The reduction of the grinding space will squeeze the gas in this space out, so that the ground solid antistatic agent can be better discharged, avoiding the situation where the ground solid antistatic agent cannot be discharged and being over-ground to damage its chemical structure and lose its antistatic effect. The discharge of the gas will also discharge the heat in the grinding space, avoiding the destruction of the chemical structure of the solid antistatic agent caused by the heat during the grinding process. The reduction of the grinding space can make multiple grinding balls and the solid antistatic agent that cannot be discharged be squeezed together, so that the solid antistatic agent can be fully ground. The same operation is carried out at the first positive and negative screw 410 and the second positive and negative screw 412. The two partition plates 407 approach each other, making the original grinding space smaller, achieving the above effects. The adjusting mechanism moves intermittently. After the space becomes smaller, it will also become smaller. When the space becomes larger, an air suction effect will be generated, causing the outside air to enter the inside of the grinding cylinder 402. This can not only prevent the solid antistatic agent from blocking the filter holes 404, but also cool the grinding space by the outside space. The entry of the gas will change the distribution of the solid antistatic agent due to the gas flow. When the space becomes larger, the grinding balls will change their positions, so that the grinding balls can avoid being unable to fully grind the solid antistatic agent in the grinding space.

[0029] As Figure 13 shown, a plurality of mounting grooves are formed in the partition plate 407, and a plurality of magnetic blocks 406 are arranged inside the mounting grooves. A threaded column is fixedly installed on the magnetic block 406, and the threaded column is in threaded connection with the partition plate 407.

[0030] It should be noted that when the partition plate 407 continuously changes its position inside the grinding cylinder 402, the partition plate 407 will continuously come into contact with the solid antistatic agent. During the use of the grinding balls, they will not be free from wear. In this way, the worn substances of the grinding balls will fall into the solid antistatic agent, making the solid antistatic agent impure, which is not conducive to subsequent use. Also, since the grinding balls are made of a material that can be adsorbed by the magnetic block 406, and during the grinding process of the solid antistatic agent, it will continuously come into contact with the partition plate 407, and thus also come into contact with the magnetic block 406. This makes it convenient to adsorb the worn substances of the grinding balls, preventing them from mixing into the solid antistatic agent and ensuring the cleanliness of the solid antistatic agent. Moreover, the magnetic block 406 will also exert a slight suction force on the grinding balls, causing the grinding balls to change their movement trajectories during movement. For example, the grinding balls need to reach a certain height before they will break away due to gravity and smash into the solid antistatic agent. During the rolling process of the grinding balls, their rolling trajectories will change due to the suction force. The change in the trajectories of the grinding balls can enable the grinding balls to fully grind the solid antistatic agent.

[0031] As Figure 4 shown, the air supply mechanism 5 includes an air supply tank 505 fixedly connected to the mounting cover 2; a piston assembly is installed on the air supply tank 505; a sliding tube 502 is fixedly installed on the piston assembly and is slidably connected to a one-way air outlet pipe 504. The one-way air outlet pipe 504 is rotatably connected to the mounting cover 2, and a driving disk 501 is fixedly installed on the one-way air outlet pipe 504.

[0032] It should be noted that when the grinding cylinder 402 rotates, the grinding cylinder 402 will cause the air inside the air supply tank 505 to be discharged into the sliding tube 502 through the piston assembly. The air entering the sliding tube 502 will enter the one-way air outlet pipe 504 and then be ejected from the nozzle 516. The ejected gas will impact the filter holes 404, so that the solid antistatic agent in the filter holes 404 can be discharged, preventing the filter holes 404 from being blocked. After the gas enters the inside of the grinding cylinder 402 through the filter holes 404, it will also be discharged from the bottom of the grinding cylinder 402. This can enable the ground solid antistatic agent to be discharged from the grinding cylinder 402, accelerating the discharge of the solid antistatic agent, preventing the solid antistatic agent from being over-ground. Moreover, the entry and discharge of the gas can drive the gas flow inside the grinding cylinder 402, discharging the heat inside the grinding cylinder 402 and preventing heat accumulation from affecting the chemical structure of the solid antistatic agent.

[0033] Moreover, by rotating the driving disk 501, the one-way air outlet pipe 504 can be rotated. In this way, the nozzle 516 fixedly connected to the one-way air outlet pipe 504 will also rotate, changing the angle at which the nozzle 516 is aligned with the filtering holes 404. The spraying angle of the nozzle 516 is opposite to the rotating direction of the grinding cylinder 402. If the cylinder rotates in the clockwise direction, then the orientation of the nozzle 516 is counterclockwise. When the cylinder rotates, since the direction of the nozzle 516 is opposite to the rotating direction of the grinding cylinder 402, a force opposite to the rotating direction of the grinding cylinder 402 will be generated when the gas is ejected. On the one hand, this force will generate a reverse acting force on the solid antistatic agent, which helps to blow out the ground solid antistatic agent from the through holes, preventing the solid antistatic agent from being re-introduced into the grinding area due to the rotation of the grinding cylinder 402, thereby improving the discharging efficiency. On the other hand, the ejection of the gas can also drive the air flow, forming an air flow opposite to the rotating direction of the grinding cylinder 402. This air flow helps to take away the heat from the filtering holes 404, enhancing the heat dissipation effect, thus reducing the temperature inside the grinding cylinder 402 and reducing the adverse effect of heat on the performance of the antistatic agent.

[0034] As Figure 4 shown, the piston assembly includes a second rotating shaft 526 rotatably connected to the grinding cylinder 402; a fourth gear 525 is fixedly installed on the second rotating shaft 526, and a third gear 524 is engaged therewith; a reciprocating lead screw 522 is rotatably installed on the air supply tank 505 and fixedly connected to the third gear 524; a second threaded block 523 is threadedly connected to the reciprocating lead screw 522, and a moving pipe 521 is fixedly installed thereon; a piston 506 is slidably installed inside the air supply tank 505 and fixedly connected to the moving pipe 521.

[0035] It should be noted that when the grinding cylinder 402 rotates, it will also drive the second rotating shaft 526 to rotate. The rotation of the second rotating shaft 526 will drive the reciprocating lead screw 522 to rotate through the fourth gear 525 and the third gear 524. The reciprocating lead screw 522 will move the second threaded block 523. The movement of the second threaded block 523 will move the moving pipe 521. The movement of the moving pipe 521 will move the piston 506, so that the air in the air supply tank 505 can be discharged into the sliding pipe 502 for use.

[0036] As Figure 4 shown, a second one-way pipe 507 is fixedly installed on the left side of the air supply tank 505, and the second one-way pipe 507 extends to the outside of the mounting cover 2. A first one-way pipe 503 is fixedly installed on the top of the air supply tank 505, and the first one-way pipe 503 extends to the outside of the mounting cover 2.

[0037] It should be noted that when the piston 506 squeezes the exhaust supply sliding tube 502, the first one-way tube 503 will suck in the outside air into the air supply tank 505 due to suction for temporary storage for later use. When the exhaust ends and the air intake starts, the gas will enter from the second one-way tube 507 for temporary storage. The gas inhaled from the air supply tank 505 will be discharged to drive the adjustment assembly to operate, so that the partition plate 407 moves, changing the size of the grinding space.

[0038] As Figure 4 and Figure 7 shown, the air supply mechanism 5 further includes an exhaust pipe 515 fixedly connected to the air supply tank 505, and through holes are provided on the exhaust pipe 515; the first sliding rod 513 is slidably installed on the exhaust pipe 515, and a driving frame 512 is fixedly installed thereon; the first spring 514 is sleeved on the first sliding rod 513, one end is fixedly connected to the air supply tank 505, and the other end is fixedly connected to the driving frame 512; the driving ring 508 is fixedly installed inside the driving frame 512, and a driving block 511 is slidably installed therein; the second driving column 510 has a first rotating shaft 401 fixedly connected to the first screw rod 409 fixedly installed thereon, and a track groove 509 interacting with the driving block 511 is provided on its surface.

[0039] It should be noted that when the air in the air supply tank 505 is completely squeezed into the inside of the grinding cylinder 402 by the piston 506, the piston 506 will move back, thus stopping the air supply to the inside of the grinding cylinder 402. At this time, the piston 506 will squeeze the gas on the other side inside the air supply tank 505 into the exhaust pipe 515 until the first sliding rod 513 moves to the right side of the through hole of the exhaust pipe 515, and the gas will still be discharged through the filter hole 404. The first sliding rod 513 will drive the driving frame 512 to move due to the pressure of the gas. The movement of the driving frame 512 will cause the driving block 511 to move. The driving block 511 acts on the second driving column 510 through the track groove 509, so that the first rotating shaft 401 rotates. The rotation of the first rotating shaft 401 will cause the first screw rod 409 to rotate. In this way, multiple partition plates 407 will move, thus changing the size of multiple grinding spaces. When the piston 506 returns to its original position and there is no more gas, the driving frame 512 will return to its original position due to the action of the first spring 514, and thus the partition plate 407 will also return to its original position. In this way, it effectively makes the air intake of the grinding cylinder 402 and the movement of the partition plate 407 for exhaust and air intake form an intermittent movement without interference.

[0040] As Figure 6As shown in the figure, a second slide bar 520 is fixedly installed at the bottom of the air supply box 505. A slide plate 519 is slidably installed on the sliding pipe 502. The top of the slide plate 519 is connected to the air supply box 505 through a second spring 517. An impact column 518 is fixedly installed at the bottom of the slide plate 519. Magnetic plates are inlaid on both the slide plate 519 and the drive frame 512. At the bottom of the installation cover 2, a storage base 1 is fixedly installed. A box door with a filter screen is provided on the storage base 1.

[0041] It should be noted that whenever the drive frame 512 is acted on by the first spring 514 and returns to its original position, the magnetic plate on the drive frame 512 will act on the magnetic plate on the slide plate 519. Due to the repulsion of the magnetic forces of the two magnetic plates, they will interact with each other, so that the slide plate 519 can drive the impact column 518 to move downward. The downward movement of the impact column 518 will impact the installation cover 2, enabling the solid antistatic agent falling on the installation cover 2 to fall into the storage base 1 more quickly.

[0042] Working principle: After mixing the solid antistatic agent and the surface-modified nano-silica dispersion carrier in a specific proportion, put them into the grinding device for treatment. The motor 301 in the grinding device is started, and the power output shaft drives the second gear 305 to rotate. The second gear 305 drives the first gear 303 meshing with it to rotate, and then the first driving column 304 drives the grinding cylinder 402 to rotate. The grinding balls in the grinding cylinder 402 are squeezed and rubbed against the solid antistatic agent for grinding. During this process, the air supply mechanism 5 works in coordination. The rotation of the grinding cylinder 402 drives the second rotating shaft 526 to rotate. The second rotating shaft 526 drives the reciprocating screw rod 522 to rotate through the fourth gear 525 and the third gear 524, causing the second threaded block 523 to move, and then driving the moving pipe 521 and the piston 506 to move, discharging the air in the air supply box 505 into the sliding pipe 502, and then entering the one-way air outlet pipe 504 and spraying out from the nozzle 516. The sprayed gas impacts the filter holes 404, accelerating the discharge of the ground solid antistatic agent and preventing the filter holes 404 from being blocked. At the same time, it drives the gas flow in the grinding cylinder 402 to dissipate heat. In addition, when the air supply mechanism 5 operates, the piston 506 squeezes the air in the air supply box 505, and part of the gas enters the exhaust pipe 515, pushing the first slide bar 513 and the drive frame 512 to move. The drive block 511 acts on the second driving column 510 through the track groove 509, causing the first rotating shaft 401 to rotate, driving the first screw rod 409 to rotate. The first screw rod 409 drives the first forward and reverse screw rod 410, the second screw rod 411, and the second forward and reverse screw rod 412 to rotate together, causing the first threaded block 408 threadedly connected to them to drive the partition plate 407 to move, changing the size of the grinding space. When the grinding space becomes smaller, it accelerates the discharge and grinding of the solid antistatic agent. When the space becomes larger, it changes the dispersion position of the grinding balls and the solid antistatic agent for more sufficient grinding. After grinding for 1 - 3 hours, a premixed powder with a particle size ≤ 2μm is obtained.

[0043] Weigh the antistatic agent, film-forming resin, pigment, filler and additive according to the preset ratio, check that the raw materials are free of lumps and impurities and set aside; put the pretreated raw materials into the grinding device, control the speed of the grinding device, and work for 1-3 hours to make the material particle size reach 1-10 microns; transfer the ball-milled material to the stirring kettle, stir and mix at a speed of 100-300 rpm for 0.5-1.5 hours under the condition of vacuum degree -0.06MPa to -0.09MPa; finely grind the stirred and mixed materials with a three-roll grinder, and control the grinding pressure at 0.5-2MPa. After grinding, the antistatic performance and fineness index of the finished coating are tested, and packaged after passing the test.

[0044] The magnetic block 406 on the partition 407 can absorb the material worn by the grinding balls to ensure that the solid antistatic agent is clean, and can also change the movement trajectory of the grinding balls to enable them to be fully ground; when the driving frame 512 returns to its original position under the action of the first spring 514, the magnetic plate on the driving frame 512 repels the magnetic plate on the slide plate 519, so that the slide plate 519 drives the impact column 518 to move downward and impact the mounting cover 2, so that the solid antistatic agent that falls on the mounting cover 2 falls into the storage base 1 more quickly.

[0045] The above describes an embodiment of the present invention, but this embodiment is not limited to the above specific implementation methods. The above specific implementation methods are merely illustrative and not restrictive. Under the guidance of this embodiment, ordinary technicians in this field can also make many forms, all of which are protected by this embodiment.

Claims

1. An antistatic coating production and processing process, characterized in that, It includes the following steps: Step 1, raw material pretreatment: Weigh the antistatic agent, film-forming resin, pigment filler, and additives according to a preset ratio. After checking that each raw material has no lumps or impurities, set it aside for use. Step 2, ball milling and dispersion: Put the pretreated raw materials into the grinding device, control the rotation speed of the grinding device, and operate for 1 - 3 hours to make the particle size of the material reach 1 - 10 microns. Step 3, vacuum stirring and mixing: Transfer the ball-milled material to the stirring kettle, and under the condition of a vacuum degree of -0.06 MPa to -0.09 MPa, stir and mix at a rotation speed of 100 - 300 revolutions per minute for 0.5 - 1.5 hours. Step 4, fine grinding and detection: Fine grind the stirred and mixed material through a three-roll mill, control the grinding pressure at 0.5 - 2 MPa. After grinding, detect the antistatic performance and fineness index of the coating finished product. After passing the inspection, it is packaged.

2. The production and processing process of an antistatic coating according to claim 1, characterized in that: The grinding device includes a mounting cover (2); A driving mechanism (3), fixedly installed on the mounting cover (2), which includes a grinding cylinder (402) provided with a filter hole (404) and an adjusting assembly; A gas supply mechanism (5), fixedly installed on the mounting cover (2), which includes a one-way air outlet pipe (504) located above the grinding cylinder (402); A nozzle (516), fixedly installed on the one-way air outlet pipe (504); When the driving mechanism (3) drives the grinding cylinder (402) to rotate and grind the solid antistatic agent, the nozzle (516) intermittently guides the solid antistatic agent particles to pass through the filter hole (404) under the action of the gas supply mechanism (5); A partition plate (407), fixedly installed on the adjusting assembly, and divides the interior of the grinding cylinder (402) into multiple grinding spaces; During the process of the grinding cylinder (402) running to grind the solid antistatic agent, the driving mechanism (3) cooperates with the gas supply mechanism (5) to intermittently change the sizes of the multiple grinding spaces.

3. The production and processing technology of an antistatic coating according to claim 2, characterized in that: The driving mechanism (3) includes a mounting frame (302) fixedly connected to the mounting cover (2); A motor (301), fixedly installed on the mounting frame (302), and a second gear (305) is fixedly installed on its power output shaft; A first driving column (304), rotatably installed on the mounting cover (2), and fixedly connected to the grinding cylinder (402), and a first gear (303) meshing with the second gear (305) is also fixedly installed thereon.

4. A production and processing process of an antistatic coating according to claim 2, characterized in that: The adjusting assembly includes a mounting box (403) fixedly connected to the grinding cylinder (402); A first screw rod (409), rotatably installed on the mounting box (403), and a first left-right screw rod (410) is fixedly installed thereon; A second left-right screw rod (412), fixedly installed on the first left-right screw rod (410); A second screw rod (411), rotatably installed on the mounting box (403), and fixedly connected to the second left-right screw rod (412); Multiple first threaded blocks (408), respectively threadedly connected to the first screw rod (409), the first left-right screw rod (410), the second screw rod (411), and the second left-right screw rod (412), and slidably connected to the mounting box (403), and fixedly connected to the partition plate (407).

5. A production and processing process of an antistatic coating according to claim 4, characterized in that: A plurality of mounting grooves are formed in the partition plate (407), a plurality of magnetic blocks (406) are arranged inside the mounting grooves, threaded columns are fixedly installed on the magnetic blocks (406), and the threaded columns are in threaded connection with the partition plate (407).

6. The production and processing process of an antistatic coating according to claim 3, characterized in that: The air supply mechanism (5) includes an air supply box (505) fixedly connected to the mounting cover (2); A piston assembly is installed on the air supply box (505); A sliding pipe (502) is fixedly installed on the piston assembly and is slidably connected to a one-way air outlet pipe (504). The one-way air outlet pipe (504) is rotatably connected to the mounting cover (2), and a driving disk (501) is fixedly installed on the one-way air outlet pipe (504).

7. The production and processing process of an antistatic coating according to claim 6, characterized in that: The piston assembly includes a second rotating shaft (526) rotatably connected to the grinding cylinder (402); A fourth gear (525) is fixedly installed on the second rotating shaft (526), and a third gear (524) is meshed with the fourth gear (525); A reciprocating lead screw (522) is rotatably installed on the air supply box (505) and is fixedly connected to the third gear (524); A second threaded block (523) is in threaded connection with the reciprocating lead screw (522), and a moving pipe (521) is fixedly installed on the second threaded block (523); A piston (506) is slidably installed inside the air supply box (505) and is fixedly connected to the moving pipe (521).

8. A production and processing process of an antistatic coating according to claim 7, characterized in that: A second one-way pipe (507) is fixedly installed on the left side of the air supply box (505), and the second one-way pipe (507) extends to the outside of the mounting cover (2). A first one-way pipe (503) is fixedly installed on the top of the air supply box (505), and the first one-way pipe (503) extends to the outside of the mounting cover (2).

9. The production and processing process of an antistatic coating according to claim 8, characterized in that: The air supply mechanism (5) further includes an exhaust pipe (515) fixedly connected to the air supply box (505), and through holes are formed in the exhaust pipe (515); A first sliding rod (513) is slidably installed on the exhaust pipe (515), and a driving frame (512) is fixedly installed on the first sliding rod (513); A first spring (514) is sleeved on the first sliding rod (513), one end of the first spring (514) is fixedly connected to the air supply box (505), and the other end of the first spring (514) is fixedly connected to the driving frame (512); A driving ring (508) is fixedly installed inside the driving frame (512), and a driving block (511) is slidably installed inside the driving ring (508); A second driving column (510) is fixedly installed with a first rotating shaft (401) fixedly connected to the first screw rod (409), and a track groove (509) interacting with the driving block (511) is formed on the surface of the second driving column (510).

10. A production and processing process of an antistatic coating according to claim 6, characterized in that: A second sliding rod (520) is fixedly installed at the bottom of the air supply box (505), a sliding plate (519) is slidably installed on the sliding pipe (502), the top of the sliding plate (519) is connected to the air supply box (505) through a second spring (517), an impact column (518) is fixedly installed at the bottom of the sliding plate (519), and magnetic plates are inlaid on both the sliding plate (519) and the driving frame (512).

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