Waterborne coating emulsification device

Abstract

The utility model relates to a kind of water-based paint emulsifying device, to solve the current water-based paint when emulsifying, usually using vertical emulsification stirring mechanism to stir emulsification, but such stirring direction is single, raw material fluidity is poor, so that emulsification effect is poor, while water-based paint contains gas, affect the technical problem of processing quality, including shell, first gear is installed on the first rotating lever, and stirring blade is installed on the first rotating lever end portion;Fan blade is installed on the second rotating lever, second gear is installed on the second rotating lever, and first gear is engaged with second gear, the utility model has broken the mixing uneven problem of single direction stirring, substantially improve raw material emulsification uniformity and efficiency, also realize circulating stirring, further strengthen emulsification effect, ensure that raw material each part is fully mixed, while effectively discharging gas in raw material, avoid gas influence emulsification quality and coating performance.

Description

Technical Field

[0001] This utility model relates to the field of coating processing, specifically to a water-based coating emulsification device. Background Technology

[0002] Water-based coatings are made by uniformly dispersing or dissolving resins, pigments, and additives in water, using water as the primary dispersion medium. They do not rely on organic solvents, and the volatiles released during application are mostly water, making them environmentally friendly and safe. After application, the paint film exhibits excellent adhesion and weather resistance, meeting the coating needs of various scenarios and making them an important alternative to traditional solvent-based coatings. During the production of water-based coatings, the raw materials need to be emulsified. Vertical emulsification mixing mechanisms are typically used for this process; however, this single-direction mixing results in poor raw material flowability and ineffective emulsification. Furthermore, the presence of gases in water-based coatings can negatively impact processing quality.

[0003] Chinese patent discloses an environmentally friendly water-based paint emulsification device (authorization announcement number CN218872027U). The patented technology includes a box body, a first centrifuge hood that rotates inside the box body, a second centrifuge hood that rotates coaxially on the outer wall of the first centrifuge hood, and a stirring rod that is fixedly installed at the output end of a second motor. The stirring rod is located in the cavity between the box body and the second centrifuge hood.

[0004] However, existing technologies have the following problems when used: Firstly, in the existing technology, vertical emulsification stirring mechanism is often used when emulsifying water-based coatings. This mechanism has a single stirring direction and cannot form a multi-directional convection stirring effect, resulting in poor fluidity of the raw materials during the stirring process. It is difficult for the different parts of the raw materials to fully contact and mix, which leads to poor emulsification effect. This cannot meet the requirements of emulsification uniformity in the production of water-based coatings and affects the quality of subsequent coating products. Secondly, existing technologies have failed to effectively address the issue of gases contained within the coating during the emulsification process of water-based coatings. These gases, remaining in the coating raw materials, directly affect processing quality and may lead to defects such as bubbles and delamination in the emulsified coating. This not only reduces the stability of the coating but also adversely affects subsequent application and film performance, making it difficult to guarantee the quality of the final coating product. Summary of the Invention

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a water-based coating emulsification device to solve the technical problems that the current water-based coatings are usually emulsified using a vertical emulsification stirring mechanism, but this stirring direction is unidirectional, the raw material fluidity is poor, resulting in poor emulsification effect, and the water-based coatings contain gas, which affects the processing quality.

[0006] To achieve the purpose of this utility model, the technical solution adopted by this utility model is as follows: design a water-based coating emulsification device, including a shell, a first rotating rod rotatably mounted at both ends of the shell, and the end of the first rotating rod extending into the inner cavity of the shell, a first gear mounted on the first rotating rod, a stirring blade mounted at the end of the first rotating rod, a connecting pipe connected to the upper end of the shell, a pump body mounted at the upper end of the connecting pipe, a hose connected to the front end of the pump body, and the lower end of the hose connected to the lower end of the shell; The shell has a second air guide pipe installed on each side, and the end of the second air guide pipe extends into the inner cavity of the shell. The end of the second air guide pipe away from the shell is connected to a box. The end of the box away from the second air guide pipe is rotatably mounted with a second rotating rod. The second rotating rod is equipped with a fan blade and a second gear. The first gear and the second gear are meshed together.

[0007] In this solution, during the emulsification process, the worker feeds the coating raw material into the housing through the corresponding inlet structure. After activating the drive unit, the first rotating rods at both ends of the housing rotate accordingly. Because the ends of the first rotating rods extend into the inner cavity of the housing and are equipped with stirring blades, the rotation of the rods drives the stirring blades to rotate synchronously. The stirring blades on both sides work together to form convection stirring, breaking the problem of uneven mixing caused by stirring in one direction, and significantly improving the uniformity and efficiency of raw material emulsification.

[0008] Meanwhile, the connecting pipe at the upper end of the shell, the pump body at its upper end, and the flexible hose connected to the front end of the pump body and the lower end of the shell together form a complete raw material circulation system after the pump body is started. This system can extract some of the stirred raw material from inside the shell and reintroduce it into the shell through the hose, achieving circulating stirring, further enhancing the emulsification effect, and ensuring that all parts of the raw material are fully mixed.

[0009] In addition, the ends of the second gas guide pipes on both sides of the shell extend into the inner cavity, providing a channel for gas to enter. The end of the second gas guide pipe away from the shell is connected to the housing, and the other end of the housing is rotatably mounted with a second rotating rod. The rotating rod is equipped with a fan blade and a second gear, which meshes with the first gear on the first rotating rod, forming a linkage structure. When the first rotating rod rotates, it drives the first gear, the second gear, the second rotating rod, and the fan blade to rotate synchronously. After the first gas guide pipe is connected to an external nitrogen supply mechanism, the fan blade assists the nitrogen to enter the raw material through the second gas guide pipe, effectively expelling the gas in the raw material and preventing the gas from affecting the emulsification quality and the performance of the coating. The expelled gas is discharged through a third pipe, ensuring the stable operation of the emulsification process.

[0010] Preferably, support plates are installed on both sides of the lower end of the shell, a shell groove is opened inside the shell, a second pipe is installed at the upper end of the shell, and a third pipe is installed at the upper end of the shell.

[0011] In practical applications, the support plates installed on both sides of the lower end of the shell provide a stable foundation for the entire device, ensuring good stability during operation and preventing vibration from affecting the mixing and emulsification effect. This also facilitates placement and fixation of the device in different work sites. The shell groove inside provides a dedicated space for the coating raw materials. The groove ensures that the raw materials remain in a relatively closed and suitable space during mixing, reducing leakage and waste, and allowing the mixing blades to perform thorough mixing. The second pipe installed at the upper end of the shell is specifically for introducing coating raw materials, making material addition more convenient and simplifying the process by eliminating the need for alternative introduction methods. The third pipe installed at the upper end of the shell plays a crucial role in venting gases from the raw materials. Combined with the nitrogen exhaust structure introduced through the second gas inlet pipe, it forms a complete gas exhaust path, ensuring timely and smooth removal of gases from the raw materials and further guaranteeing the quality of the coating emulsification.

[0012] Preferably, a first pipe is installed at the upper end of the housing, the bottom end of the connecting pipe is connected to the first pipe, a fourth pipe is installed at the lower end of the housing, and the bottom end of the flexible hose is connected to the fourth pipe.

[0013] In practical applications, the first pipe installed at the upper end of the shell serves as the connecting carrier at the bottom of the connecting pipe, making the connection between the connecting pipe and the shell more secure and airtight. This effectively prevents material leakage during the pump's extraction process, ensuring efficient material circulation. Simultaneously, the pipe connection facilitates future maintenance and repair of the connection components. The fourth pipe installed at the lower end of the shell provides a stable connection point for the bottom of the hose. The hose itself has good flexibility, and its connection with the fourth pipe ensures that even slight vibrations or positional shifts during material circulation will not affect the airtight connection between the hose and the shell. This ensures that the material can be stably reintroduced from the lower end of the shell, further enhancing the adaptability and stability of the material circulation system and guaranteeing the continuity of the entire emulsification process.

[0014] Preferably, mounting brackets are installed on both sides of the housing, and a motor is installed at the end of the mounting bracket, with the first rotating rod connected to the motor drive end.

[0015] In practical applications, the mounting brackets installed on both sides of the housing provide a stable mounting platform for the motor. These brackets effectively disperse vibrations generated during motor operation, preventing positional shifts or damage due to excessive vibration and ensuring stable motor operation. The motor, mounted at the end of the mounting bracket, has its drive end directly connected to the first rotating rod. This direct connection minimizes energy loss during power transmission, allowing the motor's power to be efficiently transmitted to the first rotating rod, driving it and the stirring blades to rotate at a stable speed. This ensures consistently stable mixing of the raw materials by the stirring blades, providing strong support for uniform emulsification of the coating. Furthermore, the motor's mounting positions on both sides of the housing facilitate routine inspection, maintenance, and repair operations by personnel.

[0016] Preferably, the box body has a groove inside, the end of the second rotating rod extends through the box body into the groove, and the second rotating rod is rotatably connected to the box body through a sealed bearing.

[0017] In practical applications, the slots inside the housing provide suitable space for the temporary storage and transport of nitrogen, ensuring that nitrogen can exist stably within the housing and flow smoothly to the second gas guide pipe. The end of the second rotating rod extends through the housing into the slot and is rotatably connected to the housing via a sealed bearing. This sealed bearing connection effectively ensures that nitrogen will not leak from the connection gaps during the rotation of the second rotating rod, guaranteeing the airtightness of the nitrogen transport and allowing all nitrogen to enter the raw materials inside the housing through the second gas guide pipe, thus improving the exhaust effect. On the other hand, the sealed bearing also reduces the frictional resistance between the second rotating rod and the housing during rotation, allowing the second rotating rod to rotate more smoothly, thereby driving the fan blades to operate efficiently, facilitating the smooth transport of nitrogen, and ensuring the stable operation of the entire nitrogen exhaust system.

[0018] Preferably, a first gas guide pipe is installed at the upper end of the box, and the first gas guide pipe is connected to an external nitrogen supply mechanism. The end of the second gas guide pipe away from the box penetrates the shell and extends into the shell groove. The second gas guide pipe is L-shaped, and the pipe hole of the second gas guide pipe extending into the shell groove faces downward.

[0019] In practical applications, the first vent pipe installed at the top of the housing is specifically designed to connect to an external nitrogen supply mechanism. This design allows nitrogen to enter the housing conveniently and stably, providing a reliable source for subsequent nitrogen supply to the raw materials. The second vent pipe, at its end furthest from the housing, penetrates the shell and extends into the shell groove, ensuring that nitrogen can directly enter the raw materials. This avoids nitrogen loss or failure to reach the material during transport, improving the contact efficiency between nitrogen and the raw materials, thereby enhancing the venting effect. Simultaneously, the second vent pipe is L-shaped, with the orifice extending downwards into the shell groove. This allows nitrogen, after exiting the second vent pipe, to directly penetrate deep into the raw materials, rather than remaining on the surface. This more effectively contacts and displaces the gases within the raw materials, thoroughly carrying out the gases and further improving the completeness of venting, ensuring the quality of coating emulsification.

[0020] Preferably, the first gear and the second gear are coaxial with their perpendicular axes.

[0021] In practical applications, the first and second gears are coaxial, ensuring a consistent meshing during rotation. This prevents issues like inaccurate meshing, unstable transmission, or additional noise and wear caused by misalignment of the shafts. Stable meshing ensures that the power from the first gear is accurately and efficiently transmitted to the second gear, driving the second rotor and fan blades at a stable speed. This guarantees stable nitrogen delivery and consistent exhaust performance. It reduces the probability of device malfunctions due to gear transmission problems, improving the overall reliability and stability of the device and ensuring long-term stable operation for water-based coating emulsification.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. When water-based coatings need to be emulsified, the raw materials are introduced into the shell through the second pipe. The motor is started, causing the stirring blades on both sides to rotate, which causes the raw materials to be stirred and emulsified by convection. At the same time, the pump is started, which can draw the raw materials in the shell and then introduce them back into the shell for circulation. This breaks the problem of uneven mixing caused by stirring in one direction, greatly improves the uniformity and efficiency of raw material emulsification, and at the same time realizes circulatory stirring, further enhancing the emulsification effect and ensuring that all parts of the raw materials are fully mixed. 2. When it is necessary to treat the gas in the water-based coating, the first gas guide pipe is connected to an external nitrogen supply mechanism. The first gear rotates, which drives the second gear and the fan blade to rotate, so that nitrogen enters the raw material through the second gas guide pipe. This can exhaust the gas in the raw material. The exhausted gas is discharged through the third pipe, which effectively removes the gas in the raw material and avoids the gas from affecting the emulsification quality and the performance of the coating. The discharged gas is discharged through the third pipe to ensure the stable progress of the emulsification process. Attached Figure Description

[0023] Figure 1 This is a first-view perspective three-dimensional schematic diagram of the present invention.

[0024] Figure 2 This is a second-view perspective three-dimensional schematic diagram of the present invention.

[0025] Figure 3 This is a third-view perspective stereoscopic diagram of the present invention.

[0026] Figure 4 This is a cross-sectional view of the present invention.

[0027] Figure 5 This is a cross-sectional view of the connection between the first gear and the second gear of this utility model.

[0028] In the diagram: 100, support plate; 110. Shell; 111. Shell groove; 120. First pipeline; 130. Second pipeline; 140. Third pipeline; 150. Fourth pipeline; 200. Mounting bracket; 210. Motor; 220. First gear; 230. First rotating rod; 240. Hose; 250. Connecting pipe; 260. Agitator blade; 270. Pump body; 300. Second gear; 310. Housing; 311. Housing groove; 320. Second rotating rod; 330, fan blade; 340, first air guide tube; 350, second air guide tube. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments: Example 1: An emulsification device for water-based coatings, see [link to example]. Figures 1 to 5The system includes a housing 110, with first rotating rods 230 rotatably mounted at both ends of the housing 110. The ends of the first rotating rods 230 extend into the inner cavity of the housing 110. A first gear 220 is mounted on the first rotating rods 230, and a stirring blade 260 is mounted at the end of the first rotating rods 230. A connecting pipe 250 is connected to the upper end of the housing 110, and a pump body 270 is mounted on the upper end of the connecting pipe 250. A flexible hose 240 is connected to the front end of the pump body 270, and the lower end of the flexible hose 240 is connected to the lower end of the housing 110. Support plates 100 are respectively mounted on both sides of the lower end of the housing 110. The housing 110 has a housing groove 111 inside. A second pipe 130 and a third pipe 140 are installed at the upper end of the housing 110. A first pipe 120 is installed at the upper end of the housing 110. The bottom end of a connecting pipe 250 is connected to the first pipe 120. A fourth pipe 150 is installed at the lower end of the housing 110. The bottom end of a flexible hose 240 is connected to the fourth pipe 150. Mounting brackets 200 are installed on both sides of the housing 110. A motor 210 is installed at the end of the mounting bracket 200. A first rotating rod 230 is connected to the drive end of the motor 210. In the emulsification process of water-based coatings according to this invention, when the operator prepares to start the emulsification operation, the water-based coating raw material to be processed is first introduced into the device housing 110 through a specially designed second pipe 130. The second pipe 130 provides a stable and convenient channel for the raw material introduction, effectively preventing leakage or spillage during the introduction process and ensuring that the raw material can enter the working space inside the housing 110 intact and smoothly. After the raw material is introduced, the operator starts the motor 210 that provides power to the device. After the motor 210 starts, it transmits power to the first rotating rod 230 installed at both ends of the housing 110, causing the first rotating rod 230 to start rotating stably at a set speed. Since the end of the first rotating rod 230 extends directly into the inner cavity of the housing 110, and a stirring blade 260 for stirring the raw material is fixedly installed at this end, the rotation of the first rotating rod 230 will directly drive the stirring blade 260 to rotate synchronously. At this time, the stirring blades 260 at both ends of the shell 110 work together under the drive of the first rotating rod 230 to create a strong convective stirring effect on the coating raw materials inside the shell 110. This convective stirring method differs from traditional unidirectional stirring. It can generate stirring forces from different directions within the raw materials inside the shell 110, effectively breaking the problem of uneven mixing caused by the formation of vortices in localized areas during unidirectional stirring. This allows the various components in the raw materials to fully contact and blend during the stirring process, significantly improving the uniformity of the emulsification and accelerating the emulsification reaction, thus significantly improving the overall emulsification efficiency.

[0030] Meanwhile, to further enhance the emulsification effect and ensure more thorough mixing of the raw materials, the pump 270 installed on the upper part of the housing 110 will be activated. The input end of the pump 270 is tightly connected to the upper end of the housing 110 via a connecting pipe 250, while the output end of the pump 270 is connected to the lower end of the housing 110 via a flexible hose 240, forming a complete and closed raw material circulation and conveying system. When the pump 270 is activated, it generates a strong suction force, drawing out some of the raw materials that have undergone preliminary convection mixing from the housing 110 through the connecting pipe 250. Subsequently, these drawn raw materials will be pushed back to the lower end of the housing 110 by the pump 270 along the hose 240 and re-enter the raw material system within the housing 110. By combining circulation and stirring, the raw materials are circulated and stirred, so that the raw materials that may not have been stirred sufficiently in the shell 110, especially those near the inner wall or bottom of the shell 110, can be included in the circulation system and stirred again, which further enhances the emulsification effect and ensures that every part of the raw materials can be mixed evenly and fully.

[0031] For details, see Figures 1 to 5 A second air guide pipe 350 is installed on each side of the housing 110, with the end of the second air guide pipe 350 extending into the inner cavity of the housing 110. The end of the second air guide pipe 350 away from the housing 110 is connected to a housing 310. A second rotating rod 320 is rotatably mounted on the end of the housing 310 away from the second air guide pipe 350. A fan blade 330 is mounted on the second rotating rod 320, and a second gear 300 is mounted on the second rotating rod 320, with the first gear 220 meshing with the second gear 300. A slot 311 is formed inside the housing 310. The end of rod 320 passes through housing 310 and extends into housing groove 311, and the second rotating rod 320 is rotatably connected to housing 310 through a sealed bearing; a first gas guide pipe 340 is installed at the upper end of housing 310, and the first gas guide pipe 340 is connected to an external nitrogen supply mechanism; the end of second gas guide pipe 350 away from housing 310 passes through housing 110 and extends into housing groove 111; second gas guide pipe 350 is L-shaped, and the pipe hole of second gas guide pipe 350 extending into housing groove 111 faces downward; the first gear 220 and the second gear 300 are coaxial with their perpendicular axes; This invention also has the function of effectively treating the gas inside the water-based coating raw material. When it is necessary to treat the gas in the water-based coating raw material inside the shell 110, the operator first connects the first gas inlet pipe 340 for introducing nitrogen on the device to the external nitrogen supply mechanism to ensure that the nitrogen supply mechanism can stably and continuously supply nitrogen to the device. During the emulsification process of the device, the first rotating rod 230 keeps rotating under the drive of the motor 210, and the first gear 220 installed on the first rotating rod 230 will also rotate synchronously with the rotation of the first rotating rod 230. Since the first gear 220 and the second gear 300 installed on the second rotating rod 320 are engaged, the power can be efficiently transmitted. Therefore, the rotation of the first gear 220 will directly drive the second gear 300 to rotate at the corresponding speed. The second gear 300 is mounted on the second rotating rod 320, which is rotatably mounted on the end of the housing 310 away from the second air duct 350. Therefore, the rotation of the second gear 300 will drive the second rotating rod 320 to rotate synchronously, thereby driving the fan blade 330, which is fixedly mounted on the second rotating rod 320 and located inside the housing 310, to start running.

[0032] When the fan blade 330 rotates inside the housing 310, it generates a directional airflow force. At this time, nitrogen supplied by the external nitrogen supply mechanism smoothly enters the housing 310 through the first air guide pipe 340. With the assistance of the airflow force generated by the fan blade 330, the nitrogen can smoothly pass through the second air guide pipe 350, which is connected to the end of the housing 310 away from the first air guide pipe 340. The other end of the second air guide pipe 350 directly penetrates the side wall of the housing 110 and extends into the raw material inside the housing 110, allowing the nitrogen to directly enter the interior of the paint raw material. The nitrogen entering the raw material reacts with excess gases such as air and water vapor contained in the raw material. Through the principle of gas replacement, the excess gases in the raw material are enveloped and carried to the surface of the raw material. Subsequently, these excess gases carried out by the nitrogen will form bubbles inside the housing 110 and gradually rise to the top space of the housing 110, and finally be smoothly discharged to the outside of the device through the third pipe 140 installed at the top of the housing 110.

[0033] It should be noted that the motor 210 and pump body 270 mentioned in the text are both existing technologies. Motor 210 is a conventional servo motor, and its working principle revolves around a closed-loop control logic of "signal feedback - deviation correction." The core is to continuously compare the command signal with the actual operating state and adjust the motor output in real time to eliminate deviations, thereby achieving precise control. The two motors 210 are synchronized via an electronic synchronizer. Pump body 270 is a rotor pump, and its working principle is as follows: A rotor pump is a positive displacement pump. The rotor inside the pump chamber is driven to rotate by the motor, forming a periodic sealed cavity with the pump chamber. The cavity volume increases at the inlet side, generating negative pressure to draw in fluid. As the rotor rotates to the outlet side, the volume decreases, squeezing the fluid out. The small gap between the rotor and the pump chamber prevents backflow, achieving stable fluid delivery.

[0034] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

[0035] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A water-based coating emulsification device, comprising a housing (110), characterized in that, The housing (110) is rotatably mounted with a first rotating rod (230) at both ends, and the end of the first rotating rod (230) extends into the inner cavity of the housing (110). A first gear (220) is mounted on the first rotating rod (230), and a stirring blade (260) is mounted on the end of the first rotating rod (230). A connecting pipe (250) is connected to the upper end of the housing (110), and a pump body (270) is mounted on the upper end of the connecting pipe (250). A hose (240) is connected to the front end of the pump body (270), and the lower end of the hose (240) is connected to the lower end of the housing (110). The housing (110) is equipped with a second air guide pipe (350) on both sides, and the end of the second air guide pipe (350) extends into the inner cavity of the housing (110). The end of the second air guide pipe (350) away from the housing (110) is connected to a box (310). The end of the box (310) away from the second air guide pipe (350) is rotatably equipped with a second rotating rod (320). A fan blade (330) is installed on the second rotating rod (320). A second gear (300) is installed on the second rotating rod (320), and the first gear (220) meshes with the second gear (300).

2. The water-based coating emulsification device as described in claim 1, characterized in that, Support plates (100) are installed on both sides of the lower end of the housing (110). A shell groove (111) is opened inside the housing (110). A second pipe (130) is installed at the upper end of the housing (110). A third pipe (140) is installed at the upper end of the housing (110).

3. The water-based coating emulsification device as described in claim 2, characterized in that, The upper end of the housing (110) is equipped with a first pipe (120), the bottom end of the connecting pipe (250) is connected to the first pipe (120), the lower end of the housing (110) is equipped with a fourth pipe (150), and the bottom end of the flexible hose (240) is connected to the fourth pipe (150).

4. The water-based coating emulsification device as described in claim 1, characterized in that, Mounting brackets (200) are installed on both sides of the housing (110), and a motor (210) is installed at the end of the mounting bracket (200). The first rotating rod (230) is connected to the driving end of the motor (210).

5. The water-based coating emulsification device as described in claim 1, characterized in that, The box body (310) has a groove (311) inside. The end of the second rotating rod (320) extends through the box body (310) into the groove (311), and the second rotating rod (320) and the box body (310) are rotatably connected by a sealed bearing.

6. The water-based coating emulsification device as described in claim 2, characterized in that, The upper end of the housing (310) is equipped with a first gas guide pipe (340), and the first gas guide pipe (340) is connected to an external nitrogen supply mechanism. The end of the second gas guide pipe (350) away from the housing (310) passes through the shell (110) and extends into the shell groove (111). The second gas guide pipe (350) is L-shaped, and the pipe hole of the second gas guide pipe (350) extending into the shell groove (111) faces downward.

7. The water-based coating emulsification device as described in claim 1, characterized in that, The first gear (220) and the second gear (300) are coaxial with their perpendicular axes.

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