Polyurethane waterproof coating production processing mixing and stirring device
By designing a multi-directional mixing structure and a feeding device, the problem of low efficiency in unidirectional mixing of existing devices has been solved, achieving efficient mixing and rapid feeding of polyurethane waterproof coatings.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIANGYANG QIANJIAMEI WATERPROOF MATERIAL CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-07-21
AI Technical Summary
Existing polyurethane waterproof coating production equipment can only achieve unidirectional stirring, resulting in low stirring effect and efficiency, and cannot achieve rapid and uniform mixing of upper and lower layers of coating.
A mixing device including a mixing tank, a transmission pipe, a positioning rod, and a mixing plate was designed. The transmission pipe drives the positioning rod and the mixing plate to rotate. Combined with the structure of bevel gears and bevel gear discs, the paint can be mixed in multiple directions. A scraper frame and an auger shaft are also provided to improve the material feeding efficiency.
This technology enables multi-directional mixing of the coating, improving mixing uniformity and efficiency, while ensuring rapid coating discharge and reducing residue on the inner wall of the mixing tank.
Smart Images
Figure CN224524520U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coating processing technology, specifically to a mixing and stirring device for the production and processing of polyurethane waterproof coatings. Background Technology
[0002] Polyurethane waterproof coatings are single-component polyurethane waterproof coatings made from isocyanate-containing prepolymers formed by addition polymerization of isocyanate, polyether, etc., combined with catalysts, anhydrous additives, anhydrous fillers, solvents, etc., and processed through mixing and other processes. This type of coating is a reaction-curing (moisture-curing) coating, characterized by high strength, high elongation, and good water resistance. Polyurethane waterproof coatings require mixing during the production process and require the use of mixing and stirring devices.
[0003] Existing mixing equipment for producing polyurethane waterproof coatings, such as Chinese patent application number CN202222588365.3, includes a fixed frame, a vacuum structure, and a mixing structure. The vacuum structure is mounted on the fixed frame, and the mixing structure is mounted on the fixed frame. The vacuum structure includes a vacuum tank, a feed pipe, a first sealing valve, a discharge pipe, a second sealing valve, a vacuum machine, a vacuum tube, and a third sealing valve. The vacuum tank is mounted on the fixed frame, the feed pipe is mounted on the vacuum tank, and the first sealing valve is mounted on the feed pipe. However, the existing mixing device can only provide unidirectional mixing, resulting in relatively low mixing effect and efficiency. Because it cannot mix the upper and lower layers of coating inside the mixing tank, the uniformity efficiency is low.
[0004] Therefore, we propose a mixing and stirring device for the production and processing of polyurethane waterproof coatings to solve the problems mentioned above. Utility Model Content
[0005] The purpose of this utility model is to provide a mixing and stirring device for the production and processing of polyurethane waterproof coatings, so as to solve the problem that the existing stirring devices mentioned in the background art can only achieve unidirectional stirring, with low stirring effect and efficiency, and cannot achieve rapid and uniform mixing between upper and lower layers.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a mixing and stirring device for the production and processing of polyurethane waterproof coatings, comprising a mixing tank: The mixing tank is fixed with a support base at the lower end, and a feed inlet is provided at the upper left side of the mixing tank. A discharge outlet is connected to the lower part of the mixing tank. A transmission pipe is provided inside the mixing tank, and a positioning rod is connected to the outer wall of the transmission pipe. A stirring plate is provided in the middle of the positioning rod. A drive shaft runs through the middle of the transmission tube, and the drive shaft is connected to a bevel gear. The inner side of the positioning rod extends into the inside of the transmission tube, and a bevel gear is connected to the inner end of the positioning rod.
[0007] Preferably, the stirring plate passes through the middle of the positioning rod, and the stirring plate is bolted to the positioning rod, and the positioning rod is rotatably connected to the transmission pipe.
[0008] Using the above technical solution, the positioning rod and the stirring plate are fixed by bolts. When the transmission tube rotates, it can drive the positioning rod and the stirring plate to rotate synchronously to achieve stirring.
[0009] Preferably, the outer wall of the stirring plate is provided with strip-shaped protrusions, and the strip-shaped protrusions are distributed in an array, and the stirring plate and the positioning rod are both distributed in an equidistant array.
[0010] By adopting the above technical solution, the strip-shaped protrusions on the outside of the mixing plate can improve the mixing effect during rotation, thereby enhancing the agitation and mixing effect of the upper and lower layers of polyurethane waterproof coating.
[0011] Preferably, the upper end of the transmission pipe extends to the outside of the upper end of the mixing tank, and the upper end of the transmission pipe is connected to a second pulley. A power motor is fixed to the outer wall of the mixing tank, and a first pulley is fixed to the upper shaft end of the power motor. A transmission belt is connected between the first pulley and the second pulley.
[0012] Using the above technical solution, the first pulley can be driven to rotate by the power motor, and the first pulley can drive the second pulley and the transmission pipe to rotate synchronously by the transmission belt, thereby providing rotational power for the stirring structure.
[0013] Preferably, a positioning frame is fixed at the upper end of the mixing tank, the upper end of the transmission shaft extends to the outside of the transmission tube, and the top end of the transmission shaft is fixed to the positioning frame. The bevel gears are arranged in an array, and the bevel gears are meshed with bevel gears.
[0014] Using the above technical solution, the transmission shaft can be fixed by the positioning frame. When the transmission tube drives the positioning rod to rotate, it can drive the bevel gear to rotate around the circumference of the transmission shaft. The rotation of the positioning rod can be achieved by the cooperation between the bevel gear and the bevel gear plate.
[0015] Preferably, the bottom of the mixing tank is designed in the shape of a funnel, the bottom of the transmission pipe is fixed with an auger shaft, and the lower end of the auger shaft extends into the inside of the discharge port. A scraper frame is connected to the outside of the transmission pipe, and the scraper frame is in contact with the inner wall of the mixing tank and matches the lower inner wall of the mixing tank.
[0016] By adopting the above technical solution, the design of the scraper frame can scrape the coating adhering to the inner wall of the mixing tank when the transmission tube rotates, and the coating can be discharged after mixing. In addition, the design of the auger shaft can avoid the impact of poor coating fluidity on the discharge efficiency.
[0017] Compared with the prior art, the beneficial effects of this utility model are: the polyurethane waterproof coating production and processing mixing and stirring device; 1. By setting up a multi-directional stirring structure, the polyurethane waterproof coating can be turned up and down while being stirred horizontally, thereby improving the stirring and mixing efficiency and uniformity. At the same time, the design of the feeding structure and scraping structure can improve the feeding speed of the coating and reduce the material residue on the inner wall of the mixing tank. 2. Through the structural design of bevel gears and bevel gear discs, the mixing plate can rotate simultaneously with the transmission tube as it drives the transmission tube to rotate around the center of the transmission tube. In this rotation process, the coating can be turned up and down. After the mixing is completed, the auger shaft structure is set to avoid the situation where the feeding speed is too slow due to the poor fluidity of the coating, thereby further improving the production and processing efficiency of the coating. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a schematic diagram of the transmission tube and scraper frame structure of this utility model; Figure 4 This is a schematic diagram of the power motor and the first pulley of this utility model; Figure 5 This is a schematic diagram of the positioning rod and stirring plate structure of this utility model; Figure 6 This utility model Figure 3 Enlarged structural diagram at point A in the middle.
[0019] In the diagram: 1. Mixing tank; 2. Support base; 3. Feed inlet; 4. Discharge outlet; 5. Transmission pipe; 6. Positioning rod; 7. Stirring plate; 8. Power motor; 9. First pulley; 10. Second pulley; 11. Transmission belt; 12. Transmission shaft; 13. Bevel gear disc; 14. Bevel gear; 15. Screw shaft; 16. Scraper frame; 17. Positioning frame. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figure 1-6This utility model provides a technical solution: a mixing and stirring device for the production and processing of polyurethane waterproof coatings, including a mixing tank 1, a support base 2 fixed at the lower end of the mixing tank 1, an inlet 3 at the upper left side of the mixing tank 1, an outlet 4 connected at the bottom of the mixing tank 1, a transmission pipe 5 inside the mixing tank 1, a positioning rod 6 connected to the outer wall of the transmission pipe 5, and a stirring plate 7 in the middle of the positioning rod 6; the stirring plate 7 passes through the middle of the positioning rod 6, and the stirring plate 7 is bolted to the positioning rod 6, and the positioning rod 6 is rotatably connected to the transmission pipe 5; the outer wall of the stirring plate 7 is provided with strip-shaped protrusions, and the strip-shaped protrusions are distributed in an array, and the stirring plate 7 and the positioning rod 6 are both distributed in an equidistant array; the upper end of the transmission pipe 5 extends to the outside of the upper end of the mixing tank 1, and the transmission pipe... The upper end of the mixing tank 1 is connected to a second pulley 10. A power motor 8 is fixed to the outer wall of the mixing tank 1, and a first pulley 9 is fixed to the upper shaft end of the power motor 8. A transmission belt 11 is connected between the first pulley 9 and the second pulley 10. During use, various materials can be put into the mixing tank 1 through the feed port 3 for mixing. At the same time, the lower end of the discharge port 4 is sealed by the sealing cover. The power motor 8 drives the first pulley 9 to rotate, and the first pulley 9 drives the second pulley 10 and the transmission pipe 5 to rotate synchronously through the transmission belt 11. The transmission pipe 5 drives the positioning rod 6 and the stirring plate 7 to rotate around the transmission pipe 5 to realize the mixing of the coating. The strip-shaped protrusions on the outer wall of the stirring plate 7 can increase the contact with the coating and improve the mixing effect.
[0022] A drive shaft 12 runs through the middle of the drive tube 5, and a bevel gear 13 is connected to the drive shaft 12. The inner side of the positioning rod 6 extends into the drive tube 5, and a bevel gear 14 is connected to the inner end of the positioning rod 6. A positioning frame 17 is fixed at the upper end of the mixing tank 1. The upper end of the drive shaft 12 extends to the outside of the drive tube 5, and the top end of the drive shaft 12 is fixed to the positioning frame 17. The bevel gear 13 is arranged in an array, and the bevel gear 13 meshes with the bevel gear 14. The bevel gear 13 can be positioned by the drive shaft 12 inside the drive tube 5, and the rotation of the drive shaft 12 is restricted by the positioning frame 17. When the drive tube 5 drives the positioning rod 6 to rotate, the mixing plate 7 can rotate by the cooperation of the bevel gear 13 and the bevel gear 14. The mixing plate 7 rotates around the positioning rod 6 to be able to tumble the paint inside the mixing tank 1, thereby achieving multi-directional mixing and improving the mixing effect and mixing efficiency.
[0023] The bottom of the mixing tank 1 is designed in the shape of a funnel. The bottom of the transmission pipe 5 is fixed with an auger shaft 15, and the lower end of the auger shaft 15 extends into the discharge port 4. The outside of the transmission pipe 5 is connected to a scraper frame 16, which is in close contact with the inner wall of the mixing tank 1 and matches the lower inner wall of the mixing tank 1. Through the scraper frame 16 connected to the transmission pipe 5, the coating adhering inside the mixing tank 1 can be hung up to avoid residue inside the mixing tank 1 when discharging. Since polyurethane waterproof coating has poor fluidity compared to water, the auger shaft 15 is set up to achieve fast and efficient operation. After the mixing is completed, the power motor 8 is controlled to rotate in the opposite direction, thereby achieving fast discharge by using the cooperation of the auger shaft 15 and the discharge port 4.
[0024] This completes a series of tasks. The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0025] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A mixing and stirring device for the production and processing of polyurethane waterproof coatings, comprising a mixing tank (1), characterized in that: The mixing tank (1) is fixed with a support base (2) at the lower end, and a feed inlet (3) is provided at the upper left side of the mixing tank (1). A discharge outlet (4) is connected to the lower part of the mixing tank (1). A transmission pipe (5) is provided inside the mixing tank (1), and a positioning rod (6) is connected to the outer wall of the transmission pipe (5). A stirring plate (7) is provided in the middle of the positioning rod (6). The transmission tube (5) has a transmission shaft (12) running through its middle section, and the transmission shaft (12) is connected to a bevel gear (13). The inner side of the positioning rod (6) runs through the inside of the transmission tube (5), and the inner end of the positioning rod (6) is connected to a bevel gear (14).
2. The polyurethane waterproof coating production and processing mixing device according to claim 1, characterized in that: The stirring plate (7) passes through the middle of the positioning rod (6), and the stirring plate (7) is bolted to the positioning rod (6), and the positioning rod (6) is rotatably connected to the transmission tube (5).
3. The polyurethane waterproof coating production and processing mixing device according to claim 2, characterized in that: The outer wall of the stirring plate (7) is provided with strip-shaped protrusions, and the strip-shaped protrusions are distributed in an array. The stirring plate (7) and the positioning rod (6) are both distributed in an equidistant array.
4. The polyurethane waterproof coating production and processing mixing device according to claim 1, characterized in that: The upper end of the transmission pipe (5) extends to the outside of the upper end of the mixing barrel (1), and the upper end of the transmission pipe (5) is connected to a second pulley (10). A power motor (8) is fixed on the outer wall of the mixing barrel (1), and a first pulley (9) is fixed on the upper shaft end of the power motor (8). A transmission belt (11) is connected between the first pulley (9) and the second pulley (10).
5. The polyurethane waterproof coating production and processing mixing device according to claim 1, characterized in that: The mixing tank (1) is fixed with a positioning frame (17) at the upper end. The upper end of the transmission shaft (12) extends to the outside of the transmission tube (5), and the top end of the transmission shaft (12) is fixed with the positioning frame (17). The bevel gear discs (13) are arranged in an array, and the bevel gear discs (13) are meshed with the bevel gears (14).
6. The polyurethane waterproof coating production and processing mixing device according to claim 1, characterized in that: The bottom of the mixing tank (1) is designed in the shape of a funnel. The bottom of the transmission pipe (5) is fixed with an auger shaft (15), and the lower end of the auger shaft (15) extends into the discharge port (4). The outside of the transmission pipe (5) is connected to a scraper frame (16), and the scraper frame (16) is in contact with the inner wall of the mixing tank (1), and the scraper frame (16) matches the lower inner wall of the mixing tank (1).