Coating stirring machine with good sealing performance

By adopting a removable sealing cover and rubber gasket design in the paint mixer, combined with lifting components and automated control, the problems of poor sealing and cumbersome operation of the mixer are solved, achieving an efficient and safe paint mixing process and extending equipment life.

CN224252596UActive Publication Date: 2026-05-19NANJING JIANGQIAN PAINT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING JIANGQIAN PAINT CO LTD
Filing Date
2025-05-19
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing paint mixers have poor sealing during mixing, incomplete contact between the mixing head and the mixing tank, poor mixing effect, and are inconvenient for removing paint, posing safety hazards and cumbersome operation.

Method used

The design incorporates a removable sealing cap and rubber gasket at the connection between the mixing head and the mixing tank. Combined with a lifting assembly and automated control, it ensures a tight seal and adapts to different tank heights. Equipped with a push-pull handle and rollers for easy movement, the positioning frame is secured with bolts to enhance stability.

Benefits of technology

It improves the sealing and safety of the coating, reduces the risk of leakage, increases mixing efficiency and equipment life, reduces the labor intensity and safety hazards of operators, and ensures the quality of the coating and the uniformity of mixing.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224252596U_ABST
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Abstract

The utility model belongs to the technical field of stirrer equipment, and particularly relates to a coating stirrer with good sealing performance. Comprising a bracket, a lifting assembly, a stirring assembly and a sealing cover, the lifting assembly is installed on the support and comprises a lifting motor, a lead screw and guide columns, the lifting motor is installed at the top of the support, one end of the lead screw is connected with the lifting motor, the other end of the lead screw is connected with the stirring assembly, and the guide columns are located on the two sides of the lead screw. The stirring assembly comprises a stirring motor, a stirring barrel and a stirring head, the stirring motor is connected with the stirring head, the stirring head is inserted into the stirring barrel, and a detachable sealing cover is arranged at the joint of the stirring head and the stirring barrel. The detachable sealing cover is arranged at the joint of the stirring barrel and the stirring head, so that the sealing performance of the device is improved, meanwhile, the height of the stirring head can be adjusted through the lifting device, and the device is suitable for stirring barrels with more sizes.
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Description

Technical Field

[0001] This utility model belongs to the technical field of mixer equipment, and specifically relates to a paint mixer with good sealing performance. Background Technology

[0002] In the field of paint production and processing, mixers are the core equipment for mixing paint raw materials. Their sealing performance and operational flexibility directly affect production efficiency and product quality. Traditional paint mixers commonly use simple flanges or threads to fix the connection between the mixing head and the mixing tank, lacking an effective sealing structure. When mixing high-viscosity or volatile paints, leaks are prone to occur, leading to raw material waste, environmental pollution, and even safety hazards. Most mixers have a fixed mixing head height, only suitable for mixing tanks of a single size. When dealing with containers of different capacities or shapes, frequent equipment changes or manual adjustments are required, which is cumbersome and costly. Existing mixer tank structures are complex and difficult to disassemble and assemble, especially the connection between the mixing head and the tank, where paint residue easily remains, making cleaning difficult and affecting equipment lifespan.

[0003] Chinese Patent CN221999650U discloses a manual / automatic sealed paint mixer. It uses a sealed drum mixing tank to mix paint, allowing for a large, low-speed mixing paddle and a horizontal structure that facilitates manual operation, enabling mixing even without power. Both the mixing tank and the paddle are equipped with locking devices, allowing for different mixing modes during manual and electric mixing to prevent interference between the two systems. In this invention, the large size and wall-mounted design of the paddle allows for simultaneous cleaning, preventing paint from adhering to the tank's inner wall and allowing the use of a hard-to-clean sealed tank, ensuring no paint splashing during mixing. However, the aforementioned device suffers from poor sealing during mixing, and its horizontal design prevents complete contact between the paint and the mixing head, resulting in poor mixing efficiency and inconvenient paint removal after mixing. Therefore, there is an urgent need for those skilled in the art to solve these technical problems. Summary of the Invention

[0004] The technical problem to be solved by the present invention is that, in the above-mentioned prior art, the sealing effect is poor during stirring, and the device is horizontal, so the coating cannot fully contact the stirring head during stirring, resulting in poor stirring effect and inconvenience in removing the coating after stirring.

[0005] To solve the above-mentioned technical problems, the technical solutions adopted by this utility model are as follows:

[0006] A paint mixer with good sealing performance includes a support frame, a lifting assembly, a mixing assembly, and a sealing cover. The lifting assembly is mounted on the support frame. The lifting assembly includes a lifting motor, a lead screw, and guide columns. The lifting motor is mounted on the top of the support frame. One end of the lead screw is connected to the lifting motor, and the other end of the lead screw is connected to the mixing assembly. The guide columns are located on both sides of the lead screw. The mixing assembly includes a mixing motor, a mixing tank, and a mixing head. The mixing motor is connected to the mixing head, and the mixing head is inserted into the mixing tank. A removable sealing cover is provided at the connection between the mixing head and the mixing tank.

[0007] By adopting the above technical solution and installing a removable sealing cap at the connection between the mixing head and the mixing tank, paint spillage or air ingress during mixing can be effectively prevented, ensuring paint quality and purity and reducing the risk of contamination. The lifting assembly allows for adjustment of the mixing assembly height to accommodate mixing tanks of different heights or different process requirements. The removable sealing cap also facilitates cleaning and maintenance. Its design not only improves sealing performance but also enhances equipment safety, preventing safety hazards caused by paint splashing. Furthermore, the automated lifting assembly reduces manual intervention, lowering the risk of operator injury. This design makes the entire mixing process more automated and efficient, eliminating the need for frequent shutdowns for adjustments or cleaning, significantly improving work efficiency. Simultaneously, the high-efficiency mixing motor and carefully designed mixing head ensure more uniform paint mixing, shortening processing time. The guide column provides additional support and stability to the lead screw, reducing wear during operation and extending the overall service life of the equipment.

[0008] Furthermore, the sealing cap includes an insertion hole and a rubber gasket, the rubber gasket being attached to the inner side of the sealing cap, and the size of the insertion hole being adapted to the size of the stirring head.

[0009] By adopting the above technical solution, the rubber gasket is attached to the inside of the sealing cover, which can form a tight contact surface between the sealing cover and the mixing tank, effectively preventing any possible leakage or entry of external impurities, ensuring the quality of the coating. The size of the insertion hole is adapted to the size of the mixing head, which means that the mixing head can be tightly inserted into the insertion hole of the sealing cover, reducing or even eliminating gaps that may occur during the mixing process, thereby improving the overall sealing performance. The rubber material has good flexibility and wear resistance, which can provide a buffering effect when the mixing head rotates, reducing direct friction between the two, thereby reducing wear and extending service life. Since the sealing cover is detachable and the rubber gasket is soft and easy to clean, cleaning and maintenance work becomes simple and quick, which helps to maintain the good operating condition of the equipment, and also facilitates the replacement of parts.

[0010] Furthermore, the mixing tank includes a lid, a push-pull handle, rollers, and a positioning frame. The lid has an opening to allow the mixing head to pass through. The opening extends upward to form a sealing protrusion that matches the sealing cap. The sealing protrusion engages between the rubber gasket and the inner wall of the sealing cap. The positioning frame is installed on the outer side of the mixing tank wall. The rollers are installed at the bottom of the mixing tank. The push-pull handle is installed on the vertical wall of the mixing tank.

[0011] By adopting the above technical solution, and by setting an avoidance opening on the lid and extending it upwards to form a sealing protrusion that matches the sealing cap, it is ensured that the mixing head will not leak during operation. The sealing protrusion engages between the rubber gasket and the inner wall of the sealing cap, further enhancing the sealing effect and preventing external impurities from entering or internal substances from leaking. The design of the push-pull handle and rollers makes the mixing tank easier to move and position, making it particularly suitable for scenarios requiring frequent position adjustments or transportation to different locations. Workers can move the equipment more easily, reducing physical labor intensity. The positioning frame is installed on the outside of the mixing tank wall, providing additional support and increasing the overall structural stability. This is especially important for preventing the risk of tipping over due to external impacts or uneven ground.

[0012] Furthermore, the bracket is equipped with a mounting bracket that is compatible with the positioning bracket, and the positioning bracket is bolted to the mounting bracket.

[0013] By adopting the above technical solution, bolts are used to fix the positioning frame to the mounting bracket, providing strong connection force and ensuring a very firm connection between the positioning frame and the bracket. This increases the stability of the overall structure, especially when facing external impacts or vibrations, effectively preventing components from loosening or shifting. The mounting bracket design allows for fine-tuning of the positioning frame according to actual needs to achieve the optimal working position or angle. This is particularly important for applications requiring high-precision positioning, such as in precision manufacturing and measuring equipment. The bolted connection method makes the installation and disassembly of the positioning frame simple and quick, requiring no complex tools or techniques. This not only improves work efficiency but also facilitates maintenance and component replacement. Different applications may require positioning frames with different configurations or sizes. The standardized mounting bracket design allows for easy replacement of different models of positioning frames, enhancing the system's flexibility and adaptability. Because a reliable connection method is used between the positioning frame and the mounting bracket, the risk of wear or damage due to improper connection is reduced, helping to extend the service life of the entire equipment.

[0014] Furthermore, the bucket lid is also provided with an opening handle and a cover plate, the cover plate is hinged to the bucket lid, and the opening handle is welded to the top of the cover plate.

[0015] Furthermore, the stirring motor is connected to the stirring head via a belt, and a protective cover is provided on the outside of the belt. The protective cover is installed on the bracket by bolts.

[0016] By adopting the above technical solutions, the protective cover can effectively prevent operators from accidentally coming into contact with the high-speed rotating belt, reducing the risk of mechanical injury. This is crucial for maintaining a safe working environment. The presence of the protective cover can prevent dust, debris, and other impurities from entering the belt drive system, reducing the possibility of wear and corrosion, thereby extending the service life of the belt and the entire drive system. The protective cover is fixed to the bracket with bolts to ensure its firmness and stability, maintaining good protective effect even under high-intensity or long-term working conditions, thus improving the overall reliability and durability of the equipment.

[0017] This utility model has the following beneficial effects:

[0018] 1. This utility model features a detachable sealing cover at the connection between the mixing head and the mixing tank, with a rubber gasket affixed to the inside of the sealing cover. This effectively prevents paint from overflowing or air from entering during the mixing process, ensuring the quality and purity of the paint. The sealing design not only improves the sealing performance but also enhances the safety of the equipment, avoiding safety hazards caused by paint splashing. The mixing motor is connected to the mixing head via a belt, and a protective cover is provided on the outside of the belt. This protects the operator from mechanical injury and also reduces the damage to the transmission system caused by dust, debris, and other impurities, thereby improving the overall safety and service life of the equipment.

[0019] 2. This utility model adopts a lifting component design, which can adjust the height of the stirring component according to actual needs to adapt to stirring tanks of different heights or different process requirements. The design of the push-pull handle and rollers makes the stirring tank easier to move and position, which is especially suitable for scenarios that require frequent position adjustments or transportation to different locations, greatly reducing the physical labor intensity of workers. The detachable sealing cover design facilitates cleaning and maintenance, while the bolt-fixed positioning frame provides strong connection force, ensuring structural integrity and increasing the overall structural stability, while also facilitating maintenance and replacement of parts.

[0020] 3. The mixing motor and mixing head of this utility model can ensure that the coating is mixed more evenly, shortening the processing time. The presence of the guide column provides additional support and stability for the lead screw, reducing the wear of the lead screw during operation, thereby extending the service life of the entire equipment. The automated lifting component reduces manual intervention, lowers the risk of injury to operators, and makes the entire mixing process more automated and efficient, eliminating the need for frequent shutdowns for adjustment or cleaning, greatly improving work efficiency and product quality. Attached Figure Description

[0021] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the sealing cap of this utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the mixing tank of this utility model;

[0024] Figure 4 for Figure 1 Enlarged diagram of section A in the middle;

[0025] Figure 5 for Figure 1 Enlarged schematic diagram of section B.

[0026] Wherein: 1-Bracket; 11-Mounting frame; 2-Lifting assembly; 21-Lifting motor; 22-Screw rod; 23-Guide column; 3-Mixing assembly; 32-Mixing tank; 321-Tank lid; 3211-Avoidance opening; 3212-Sealing protrusion; 3213-Opening handle; 3214-Baffle plate; 322-Push-pull handle; 323-Roller; 324-Positioning frame; 33-Mixing head; 4-Sealing cover; 41-Insert hole; 42-Rubber gasket; 5-Protective cover; 6-Belt. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and specific preferred embodiments.

[0028] In the description of this utility model, it should be understood that the terms "left side," "right side," "upper part," "lower part," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. "First," "second," etc., do not indicate the importance of the components, and therefore should not be construed as a limitation of this utility model. The specific dimensions used in this embodiment are only for illustrating the technical solution and do not limit the protection scope of this utility model.

[0029] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As can be seen, this utility model discloses a paint mixer with good sealing performance, comprising a support 1, a lifting assembly 2, a mixing assembly 3, and a sealing cover 4. The support 1 serves as the basic structure of the entire device, used to install and support other components. A lifting motor 21 is located at the top of the support 1, driving a lead screw 22 to move up and down, thereby adjusting the height of the mixing assembly 3. Simultaneously, the support 1 also has a mounting bracket 11 adapted to a positioning frame 324. The positioning frame 324 is fixed to the mounting bracket 11 with bolts, ensuring the stability and adjustability of the mixing tank 32. The lifting assembly 2 consists of a lifting motor 21, a lead screw 22, and guide columns 23. One end of the lead screw 22 is connected to the lifting motor 21, and the other end is connected to the mixing head 33. The guide columns 23 are located on both sides of the lead screw 22, providing additional support and stability, and reducing wear on the lead screw 22 during operation. The mixing assembly 3 includes a mixing motor, a mixing tank 32, and a mixing head 33. The mixing motor is connected to the mixing head 33 via a belt 6. The belt 6 is equipped with a protective cover 5 and is fixed to the bracket 1 with bolts to ensure the safety of the operator. The mixing head 33 is inserted into the mixing tank 32, and a removable sealing cap 4 is provided at the connection between the mixing head 33 and the mixing tank 32 to ensure sealing during the mixing process. A rubber gasket 42 is attached to the inside of the sealing cap 4, and an insertion hole 41 is provided in the center, the size of which is adapted to the mixing head 33 to ensure a tight fit and prevent leakage. The mixing head 33 is inserted into the mixing tank 32 through the insertion hole 41, and the rubber gasket 42 forms a tight contact surface between the sealing cap 4 and the mixing tank, further enhancing the sealing effect. In addition, the mixing tank 32 also includes a lid 321, a push-pull handle 322, rollers 323, and a positioning frame 324. The lid 321 has an opening 3211 to allow the mixing head 33 to pass through, and extends upward to form a sealing protrusion 3212. This sealing protrusion is engaged between the rubber gasket 42 and the inner wall of the sealing cover 4, enhancing the overall sealing performance. The push-pull handle 322 and rollers 323 facilitate the movement and positioning of the mixing tank 32, and the positioning frame 324 increases the stability and support of the mixing tank. The lid 321 is also provided with an opening handle 3213 and a baffle plate 3214. The baffle plate 3214 is hinged to the lid, and the lid 321 is welded with an opening handle 3213 for easy operation.

[0030] Working Principle: First, the support frame 1 serves as the basic structure of the entire device, providing the function of installing and supporting other components. A lifting motor 21 is located at the top of the support frame 1. When the equipment is running, the lifting motor 21 drives the lead screw 22 to rotate, allowing the stirring assembly 3 connected to the lead screw to move up and down, thereby adjusting the position of the stirring head 33 within the stirring tank 32 to adapt to different stirring needs. The lifting assembly 2 includes the lifting motor 21, the lead screw 22, and guide columns 23. The guide columns 23 are located on both sides of the lead screw, providing additional support and stability, reducing wear, and ensuring smoothness during the lifting process. This design ensures that the stirring head 33 can be precisely adjusted in a stable state. The stirring assembly 3 consists of a stirring motor, a stirring tank 32, and a stirring head 33. The stirring motor is connected to the stirring head 33 via a belt 6, and a protective cover 5 is installed outside the belt to ensure operator safety and prevent impurities from entering the transmission system. When the stirring motor starts, it drives the stirring head 33 to rotate at high speed inside the mixing tank 32, achieving effective mixing of materials. To ensure sealing during the mixing process, a sealing cover 4 is designed for the connection between the stirring head 33 and the mixing tank 32. A rubber gasket 42 is attached to the inside of the sealing cover 4, and it fits tightly with the stirring head 33 through the insertion hole 41 in the center, effectively preventing leakage. At the same time, the tank cover 321 on the mixing tank 32 has an opening 3211 to allow the stirring head 33 to pass through, and the overall sealing is further enhanced by the sealing protrusion 3212. The mixing tank 32 is also equipped with a push-pull handle 322 and rollers 323 for easy movement and positioning; as well as an opening handle 3213 and a baffle 3214 for convenient user operation.

[0031] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and all such equivalent transformations fall within the protection scope of the present invention.

Claims

1. A paint mixer with good sealing performance, characterized in that: The assembly includes a support (1), a lifting component (2), a stirring component (3), and a sealing cap (4). The lifting component (2) is mounted on the support (1). The lifting component (2) includes a lifting motor (21), a lead screw (22), and a guide column (23). The lifting motor (21) is mounted on the top of the support (1). One end of the lead screw (22) is connected to the lifting motor (21), and the other end of the lead screw (22) is connected to the stirring component (3). The guide column (23) is located on both sides of the lead screw (22). The stirring component (3) includes a stirring motor, a stirring tank (32), and a stirring head (33). The stirring motor is connected to the stirring head (33), and the stirring head (33) is inserted into the stirring tank (32). A removable sealing cap (4) is provided at the connection between the stirring head (33) and the stirring tank (32).

2. The coating mixer with good sealing performance according to claim 1, characterized in that: The sealing cap (4) includes an insertion hole (41) and a rubber gasket (42). The rubber gasket (42) is attached to the inside of the sealing cap (4). The size of the insertion hole (41) is adapted to the size of the stirring head (33).

3. The coating mixer with good sealing performance according to claim 2, characterized in that: The mixing tank (32) includes a lid (321), a push-pull handle (322), rollers (323), and a positioning frame (324). The lid (321) has an opening (3211) that allows the stirring head (33) to pass through. The opening (3211) extends upward to form a sealing protrusion (3212) that is adapted to the sealing cover (4). The sealing protrusion (3212) is engaged between the rubber gasket (42) and the inner wall of the sealing cover (4). The positioning frame (324) is installed on the outer side of the mixing tank (32). The rollers (323) are installed at the bottom of the mixing tank (32). The push-pull handle (322) is installed on the vertical wall of the mixing tank (32).

4. The coating mixer with good sealing performance according to claim 3, characterized in that: The bracket (1) is equipped with a mounting bracket (11) that is compatible with the positioning bracket (324), and the positioning bracket (324) is bolted to the mounting bracket (11).

5. The coating mixer with good sealing performance according to claim 3, characterized in that: The bucket lid (321) is also provided with an opening handle (3213) and a cover plate (3214). The cover plate (3214) is hinged to the bucket lid (321), and the opening handle (3213) is welded to the top of the cover plate (3214).

6. The coating mixer with good sealing performance according to claim 1, characterized in that: The stirring motor is connected to the stirring head (33) via a belt (6). A protective cover (5) is provided on the outside of the belt (6), and the protective cover (5) is installed on the bracket (1) by bolts.