A paint shaker

Abstract

The application relates to a paint mixer, belonging to the field of paint processing, which comprises a rack, a stirring tank body detachably installed on the rack, a sealing top cover covering the open end of the stirring tank body, a stirring mechanism installed on the rack and extending into the stirring tank body, a locking mechanism arranged between the sealing top cover and the stirring tank body, a locking mechanism arranged on the rack and used for locking the stirring tank body, a vacuum mechanism arranged on the rack and used for vacuumizing the inside of the stirring tank body, and a water circulation mechanism arranged on the stirring tank body. The application solves the problems of insufficient and uneven stirring of the existing paint mixer.

Description

Technical Field

[0001] This utility model relates to the field of coating processing, and in particular to a coating mixer. Background Technology

[0002] A paint mixer is an electric or manual tool specifically designed to thoroughly and evenly mix paints (such as latex paint, oil paint, primer, varnish, etc.). Its main function is to solve problems such as pigment sedimentation, layering, and clumping that occur during paint storage, ensuring uniform color and texture for optimal painting results.

[0003] In existing technologies, electric mixers are commonly used for paint mixing, but several problems remain in practical applications. First, many traditional mixing blades have poorly designed structures, making it difficult to create effective axial flow in viscous paints and thoroughly agitate the thick sediment at the bottom of the container. Simultaneously, they provide insufficient shear force to completely break up pigment aggregates, easily creating localized dead zones during mixing. Second, excessively high rotation speeds or improper mixing positions can easily trap too much air, generating bubbles and affecting the final construction quality. Furthermore, the equipment itself often lacks a precise speed control mechanism—too low a speed results in insufficient mixing power, while too high a speed easily generates vortices and bubbles, further limiting the mixing effect. Utility Model Content

[0004] To address the problems of insufficient and uneven mixing in existing paint mixers, this application provides a paint mixer.

[0005] The coating mixer provided in this application adopts the following technical solution: A paint mixer includes a frame, a mixing tank detachably mounted on the frame, a sealing top cover that fits over the opening of the mixing tank, a mixing mechanism mounted on the frame and extending into the mixing tank, a locking mechanism mounted on the frame for locking the mixing tank, and a vacuum mechanism mounted on the frame for evacuating the interior of the mixing tank.

[0006] By adopting the above technical solution, the detachable mixing tank, combined with the sealed top cover and vacuum mechanism, forms a closed vacuum mixing environment. This not only effectively prevents material volatilization and external contamination but also completely eliminates air bubbles generated during mixing under vacuum conditions. Simultaneously, the locking mechanism ensures the stability of the tank during mixing, thus collaboratively solving the problems of insufficient and uneven mixing found in existing paint mixers.

[0007] Optionally, the frame includes a mounting base, a support column vertically mounted on the mounting base, and a mounting top frame mounted on the top of the support column; a lifting assembly is also provided between the support column and the mounting top frame; the lifting assembly includes a hydraulic cylinder mounted in the support column and a lifting seat mounted on the top of the piston rod of the hydraulic cylinder and connected to the mounting top frame.

[0008] By adopting the above technical solution, the hydraulically driven lifting assembly can easily raise and lower the installation top frame and the agitator connected to it, which greatly facilitates the placement and removal of the agitator and the maintenance of the agitator, reduces the labor intensity of operators, and improves the ease of equipment operation.

[0009] Optionally, a guide assembly is provided between the lifting seat and the supporting column; the guide assembly includes at least one guide rod vertically fixed on the lifting seat, a guide sleeve disposed on the supporting column and slidably engaged with the guide rod, and a guide seat for mounting the guide sleeve, and the lifting seat is provided with a guide portion for fixing the guide rod.

[0010] By adopting the above technical solution, the guide assembly can ensure that the lifting seat (and the mounting frame) remains vertical and stable during the lifting process, preventing swaying, jamming or shaking, thereby ensuring the coaxiality of the mixing main shaft and the mixing tank, and improving the stability and safety of the equipment operation.

[0011] Optionally, the stirring mechanism includes a stirring main shaft rotatably mounted on the mounting top frame and extending downward through the sealing top cover into the stirring tank, a stirring wheel mounted on the stirring main shaft, a stirring frame mounted on the outer periphery of the stirring main shaft, a plurality of scrapers mounted on the outer periphery of the stirring frame, and a driving component for driving the stirring main shaft to rotate. The stirring wheel is also uniformly provided with stirring teeth on its outer periphery.

[0012] By adopting the above technical solution, the specific structure of the stirring mechanism is disclosed. A composite structure of "stirring wheel + stirring frame + scraper" is used to achieve multi-level, dead-angle-free stirring. The stirring wheel and stirring teeth are responsible for the main shearing and vortex stirring, while the scraper removes the deposits on the tank wall, promoting heat exchange and ensuring the uniformity of material mixing, effectively solving the problem of uneven stirring of materials at the tank's edge.

[0013] Optionally, the number of stirring wheels is at least two sets, and they are evenly spaced along the length of the stirring shaft.

[0014] By adopting the above technical solution, setting at least two sets of stirring wheels and distributing them evenly, the stirring area covers the entire height range of the tank, avoiding the occurrence of stirring blind spots, and ensuring that the materials in the tank from top to bottom can be fully and consistently mixed, further guaranteeing the stirring quality and efficiency.

[0015] Optionally, the locking mechanism includes a fixed frame disposed on the support column and adapted to the outer periphery of the mixing tank, a tightening strap disposed at one end of the fixed frame, and a tightening buckle disposed at the other end of the fixed frame and cooperating with the tightening strap.

[0016] By adopting the above technical solution, once the mixing tank is placed in position, it can be quickly secured to the frame using tightening belts and buckles, preventing the tank from shifting or overturning due to vibration or centrifugal force during the mixing process, thus ensuring the safety of the production process.

[0017] Optionally, a locking mechanism is also provided between the sealing top cover and the mixing tank body; the locking mechanism includes a locking seat evenly distributed on the top edge of the mixing tank body, a locking hook rotatably disposed on the locking seat, and a locking rod threaded onto the locking hook and used to press the sealing top cover, and the locking seat is provided with a rotating shaft for mounting the locking hook.

[0018] By adopting the above technical solution, rotating the locking hook and tightening the locking rod can apply a strong downward pressure to ensure that the sealing top cover fits tightly with the opening end of the tank, thereby maintaining sufficient sealing during vacuuming and preventing air leakage.

[0019] Optionally, the mixing tank is further provided with a water circulation mechanism; the water circulation mechanism includes an inlet and outlet located at the lower part of the side wall of the mixing tank, an on / off valve located at the inlet and outlet, and a circulating water pipe with one end connected to the inlet and outlet and the other end used to connect to an external water source.

[0020] By adopting the above technical solution, the water circulation mechanism can introduce circulating water into the side wall of the tank to cool or heat the coating inside the tank, adapt to the requirements of different coatings for stirring temperature, and broaden the application range of the equipment.

[0021] Optionally, the sealing top cover is provided with a feed inlet, and an openable feed end cover is installed at the feed inlet; the sealing top cover is also provided with multiple pressure relief ports, and each pressure relief port is equipped with a pressure relief valve.

[0022] By adopting the above technical solutions, the feed inlet and feed end cap can be used to replenish materials in a sealed state without disrupting the vacuum inside the tank; the pressure relief port and pressure relief valve can safely release pressure when the vacuum is too high or needs to be released, avoiding abnormal pressure inside the tank that could damage the equipment or cause material splashing, thus improving operational safety.

[0023] Optionally, the bottom of the mixing tank is provided with a discharge port, and a discharge valve is installed at the discharge port; the bottom of the mixing tank is also provided with at least three casters.

[0024] By adopting the above technical solutions, the bottom discharge port and discharge valve facilitate the rapid discharge of materials after mixing, reducing residue; the casters allow the mixing tank to move flexibly, making it easy to disassemble from the frame and transfer to other workstations for dumping or cleaning, thus improving the equipment's transport convenience.

[0025] In summary, this application includes at least one of the following beneficial technical effects: A paint mixer, through the combination of a detachable mixing tank, a sealed top cover, and a vacuum mechanism, creates a closed vacuum mixing environment. This not only effectively prevents material volatilization and external contamination but also completely eliminates air bubbles generated during mixing under vacuum conditions. Simultaneously, a locking mechanism ensures the stability of the tank during mixing, thus collaboratively solving the problems of insufficient and uneven mixing found in existing paint mixers. By setting at least two sets of stirring wheels and distributing them evenly, the stirring area covers the entire height range of the tank, avoiding the occurrence of stirring blind spots, and ensuring that the materials inside the tank from top to bottom are fully and consistently mixed, further guaranteeing the stirring quality and efficiency. The water circulation mechanism allows circulating water to be introduced into the side wall of the tank to cool or heat the coating inside, adapting to the different coating requirements for stirring temperature and broadening the equipment's applicability. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the paint mixer in the embodiments of this application.

[0027] Figure 2 This is a schematic diagram of the lifting component in an embodiment of this application.

[0028] Figure 3 This is a schematic diagram of the structure of the mixing tank in an embodiment of this application.

[0029] Figure 4 This is a cross-sectional schematic diagram of the paint mixer in an embodiment of this application.

[0030] Figure 5 This is a side view of the paint mixer in an embodiment of this application.

[0031] Figure 6 yes Figure 5 A magnified view of a portion of point A in the middle.

[0032] Explanation of reference numerals in the attached drawings: 1. Frame; 11. Mounting base; 12. Support column; 13. Mounting top frame; 14. Lifting assembly; 141. Hydraulic cylinder; 142. Lifting seat; 1421. Guide section; 15. Guide assembly; 151. Guide rod; 152. Guide sleeve; 153. Guide seat; 2. Mixing tank; 21. Discharge port; 211. Discharge valve; 22. Casters; 3. Sealing top cover; 31. Inlet; 311. Inlet end cover; 32. Pressure relief port; 321. Pressure relief valve; 33. Pressure gauge; 4. Stirring mechanism; 41. Stirring main shaft; 42. Stirring wheel; 421. Stirring teeth; 43. Stirring frame; 44. Scraper; 45. Drive component; 5. Locking mechanism; 51. Fixed frame; 52. Tightening belt; 53. Tightening buckle; 6. Locking mechanism; 61. Locking seat; 611. Rotating shaft; 62. Locking hook; 63. Locking rod; 7. Vacuum mechanism; 71. Vacuum pump; 72. Vacuum pipeline; 73. Vacuum control valve; 8. Water circulation mechanism; 81. Inlet and outlet; 82. On / off valve; 83. Circulating water pipe. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0034] This application discloses a paint mixer. (Refer to...) Figure 1 A paint mixer includes a frame 1, a mixing tank 2 detachably mounted on the frame 1, a sealing top cover 3 covering the opening of the mixing tank 2, a mixing mechanism 4 mounted on the frame 1 and extending into the mixing tank 2, a locking mechanism 6 disposed between the sealing top cover 3 and the mixing tank 2, a locking mechanism 5 disposed on the frame 1 for locking the mixing tank 2, a vacuum mechanism 7 disposed on the frame 1 for evacuating the inside of the mixing tank 2, and a water circulation mechanism 8 disposed on the mixing tank 2.

[0035] Reference Figure 1 During operation, firstly, the detachable mixing tank 2 is pushed into the frame 1 and secured with the locking mechanism 5; then, the sealing top cover 3 is closed and pressed tightly against the tank body using the locking mechanism 6. Next, the vacuum mechanism 7 is activated to evacuate the inside of the sealed tank; during the mixing process, the mixing mechanism 4 is driven to run, thoroughly mixing and shearing the coating inside the tank; simultaneously, the water circulation mechanism 8 can be activated according to process requirements to control the temperature of the material inside the mixing tank 2 through circulating hot and cold water. After mixing is completed, the vacuum is first broken, then the top cover is unlocked and opened, and finally the finished coating is discharged through the discharge port 21 at the bottom of the mixing tank 2, ensuring efficient, uniform, and high-quality mixing results.

[0036] Reference Figure 1The frame 1 includes a mounting base 11, a support column 12 vertically mounted on the mounting base 11, and a mounting top frame 13 mounted on the top of the support column 12. The support column 12 is a hollow square steel core, with its bottom welded to the mounting base 11. The mounting top frame 13 is a flat plate structure, providing mounting positions for components such as the stirring mechanism 4.

[0037] Reference Figure 2 A lifting assembly 14 is also provided between the support column 12 and the mounting frame 13. The lifting assembly 14 includes a hydraulic cylinder 141 disposed within the support column 12 and a lifting seat 142 mounted on the top of the piston rod of the hydraulic cylinder 141 and connected to the mounting frame 13. The lifting seat 142 is a block structure and is connected to the mounting frame 13 by welding. When the hydraulic cylinder 141 is working, the piston rod drives the lifting seat 142 and the mounting frame 13 to rise and fall together, thereby adjusting the height position of the stirring mechanism 4 within the stirring tank 2.

[0038] Reference Figure 2 A guide assembly 15 is provided between the lifting seat 142 and the support column 12. The guide assembly 15 includes at least one guide rod 151 vertically fixed to the lifting seat 142, a guide sleeve 152 disposed on the support column 12 and slidably engaged with the guide rod 151, and a guide seat 153 for mounting the guide sleeve 152. The lifting seat 142 has a guide portion 1421 for fixing the guide rod 151. One end of the guide rod 151 is fixed to the guide portion 1421 of the lifting seat 142 by a threaded connection. The guide sleeve 152 has a sleeve-shaped structure with a smooth inner hole that matches the outer diameter of the guide rod 151, allowing the guide rod 151 to slide smoothly within it. The guide seat 153 is fixed to the support column 12 by welding and is used to install the guide sleeve 152. The guide assembly 15 ensures the stability and accuracy of the lifting seat 142 during the lifting process and prevents it from deviating.

[0039] Reference Figure 3 The mixing tank 2 has a discharge port 21 at its bottom, and a discharge valve 211 is installed at the discharge port 21. At least three casters 22 are also provided at the bottom of the mixing tank 2. The discharge port 21 is a side discharge outlet at the bottom of the tank, and the discharge valve 211 is a manual butterfly valve. The casters 22 are heavy-duty industrial casters with brakes. In this embodiment, there are three casters 22, evenly distributed at the bottom of the mixing tank 2.

[0040] Reference Figure 3The sealing top cover 3 has a feed inlet 31, and an openable feed end cover 311 is installed at the feed inlet 31. The sealing top cover 3 also has multiple pressure relief ports 32, each of which is equipped with a pressure relief valve 321. There are two pressure relief ports 32, one connected to a safety valve for overpressure protection, and the other connected to a manual ball valve for normal pressure relief. In addition, a pressure gauge 33 is installed on the sealing top cover 3 to monitor the actual pressure inside the mixing tank 2 in real time.

[0041] Reference Figure 1 and Figure 4 The stirring device includes a stirring main shaft 41 rotatably mounted on a mounting top frame 13 and extending downward through a sealed top cover 3 into a stirring tank 2; stirring wheels 42 mounted on the stirring main shaft 41; a stirring frame 43 disposed around the stirring main shaft 41; multiple scrapers 44 disposed around the stirring frame 43; and a driving component 45 for driving the stirring main shaft 41 to rotate. Stirring teeth 421 are also evenly distributed around the outer periphery of the stirring wheels 42. The number of stirring wheels 42 is at least two sets, and they are evenly spaced along the length of the stirring main shaft 41.

[0042] Reference Figure 1 and Figure 4 The drive unit 45 is a variable frequency motor, connected to the top of the stirring main shaft 41 via a reducer, enabling stepless speed regulation. Two sets of stirring wheels 42 are equidistantly distributed along the main shaft axis. Each set of stirring wheels 42 has multiple radially distributed sawtooth stirring teeth 421 to provide strong shearing force. The stirring frame 43 is a rectangular steel frame fixed to the stirring main shaft 41. The scraper 44 is welded to the stirring frame 43, ensuring its edge always maintains slight contact with the inner wall of the tank.

[0043] Reference Figure 1 and Figure 5 The locking mechanism 5 includes a fixed frame 51 mounted on the support column 12 and adapted to the outer periphery of the mixing tank 2, a tightening strap 52 located at one end of the fixed frame 51, and a tightening buckle 53 located at the other end of the fixed frame 51 and cooperating with the tightening strap 52. The fixed frame 51 is a ring structure formed by bending and welding steel profiles. The tightening strap 52 is a high-strength nylon strap, and the tightening buckle 53 is a ratchet-type lock, enabling quick binding and release.

[0044] Reference Figure 5 and Figure 6A locking mechanism 6 is also provided between the sealing top cover 3 and the mixing tank 2. The locking mechanism 6 includes a locking seat 61 evenly distributed on the top edge of the mixing tank 2, a locking hook 62 rotatably disposed on the locking seat 61, and a locking rod 63 threadedly installed on the locking hook 62 for pressing the sealing top cover 3. The locking seat 61 is provided with a rotating shaft 611 for mounting the locking hook 62. The locking seat 61 is welded to the edge of the top flange of the mixing tank 2. The locking hook 62 is rotatably mounted on the locking seat 61 via the rotating shaft 611. The locking rod 63 is a handle bolt, which can press its end against the pressure plate of the sealing top cover 3 when tightened to ensure the sealing effect.

[0045] Reference Figure 1 The vacuum mechanism 7 includes a vacuum pump 71 mounted on the mounting bracket 13, a vacuum pipe 72 connected at one end to the output end of the vacuum pump 71 and at the other end to the mixing tank 2, and a vacuum control valve 73 mounted on the vacuum pipe 72. When vacuuming is required, all pressure relief valves 321 and the feed port 31 are closed, the vacuum pump 71 is started, and then the vacuum control valve 73 is opened. The air in the mixing tank 2 is then extracted by the vacuum pump 71 through the vacuum pipe 72, completely eliminating the air bubbles generated during the mixing process.

[0046] Reference Figure 1 The water circulation mechanism 8 includes an inlet / outlet 81 located on the lower side wall of the mixing tank 2, an on / off valve 82 located at the inlet / outlet 81, and a circulating water pipe 83 connected at one end to the inlet / outlet 81 and at the other end to an external water source. The circulation mechanism can introduce circulating water into the side wall of the tank to cool or heat the coating inside, adapting to the different mixing temperature requirements of various coatings and broadening the applicability of the equipment.

[0047] The working principle of a paint mixer according to the application embodiment is as follows: the operator first pushes the mixing tank 2 into the frame 1 and secures it with the locking mechanism 5; then, the lifting assembly 14 is activated to raise the mounting top frame 13, hoist the sealing top cover 3 above the mixing tank 2, and then the mounting top frame 13 is lowered to ensure that the sealing top cover 3 is accurately closed; finally, the locking mechanism 6 is operated to tighten the locking rod 63 to press the sealing top cover 3, forming a reliable seal; After sealing is completed, the vacuum mechanism 7 can be activated to evacuate the mixing tank 2 through the interface on the sealed top cover 3; after the required vacuum degree is reached, the feed port 31 is opened to add the coating raw materials; then the drive component 45 is activated to drive the mixing main shaft 41 and its multi-layer mixing wheel 42 to rotate synchronously with the mixing frame 43, so as to achieve efficient and dead-angle-free mixing by combining the main body shearing and wall scraping cleaning; if temperature control is required, the water circulation mechanism 8 can be activated at the same time to adjust the material temperature through the circulating water in the jacket. After mixing is completed, the vacuum is first broken through the pressure relief port 32, then the locking mechanism 6 is released and the sealing top cover 3 is lifted; finally, the entire mixing tank 2 is easily moved out using the universal wheels 22 at the bottom of the mixing tank 2 and transferred to the next work station, and the discharge valve 211 at the bottom of the mixing tank 2 is opened to discharge the material.

[0048] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A paint mixer, characterized in that, Includes a frame (1), a mixing tank (2) detachably mounted on the frame (1), a sealing top cover (3) covering the opening end of the mixing tank (2), a stirring mechanism (4) mounted on the frame (1) and extending into the mixing tank (2), a locking mechanism (5) provided on the frame (1) for locking the mixing tank (2), and a vacuum mechanism (7) provided on the frame (1) for evacuating the inside of the mixing tank (2). The frame (1) includes a mounting base (11), a support column (12) vertically mounted on the mounting base (11), and a mounting top frame (13) mounted on the top of the support column (12); a lifting assembly (14) is also provided between the support column (12) and the mounting top frame (13); the lifting assembly (14) includes a hydraulic cylinder (141) disposed in the support column (12) and a lifting seat (142) mounted on the top of the piston rod of the hydraulic cylinder (141) and connected to the mounting top frame (13). The stirring mechanism (4) includes a stirring main shaft (41) rotatably mounted on the mounting top frame (13) and extending downward through the sealing top cover (3) into the stirring tank (2), a stirring wheel (42) mounted on the stirring main shaft (41), a stirring frame (43) mounted on the outer periphery of the stirring main shaft (41), a plurality of scrapers (44) mounted on the outer periphery of the stirring frame (43), and a driving component (45) for driving the stirring main shaft (41) to rotate. The stirring wheel (42) is also uniformly provided with stirring teeth (421) on its outer periphery. The locking mechanism (5) includes a fixed frame (51) disposed on the support column (12) and adapted to the outer periphery of the mixing tank (2), a tightening band (52) disposed at one end of the fixed frame (51), and a tightening buckle (53) disposed at the other end of the fixed frame (51) and cooperating with the tightening band (52).

2. The paint mixer according to claim 1, characterized in that, A guide assembly (15) is provided between the lifting seat (142) and the support column (12); the guide assembly (15) includes at least one guide rod (151) vertically fixed on the lifting seat (142), a guide sleeve (152) disposed on the support column (12) and slidably engaged with the guide rod (151), and a guide seat (153) for mounting the guide sleeve (152). The lifting seat (142) is provided with a guide portion (1421) for fixing the guide rod (151).

3. A paint mixer according to claim 1, characterized in that, The number of stirring wheels (42) is at least two sets, and they are evenly spaced along the length of the stirring shaft (41).

4. A paint mixer according to claim 1, characterized in that, A locking mechanism (6) is also provided between the sealing top cover (3) and the mixing tank (2); the locking mechanism (6) includes a locking seat (61) evenly arranged on the top edge of the mixing tank (2), a locking hook (62) rotatably arranged on the locking seat (61), and a locking rod (63) threaded on the locking hook (62) and used to press the sealing top cover (3); the locking seat (61) is provided with a rotating shaft (611) for the locking hook (62) to be installed.

5. A paint mixer according to claim 1, characterized in that, The mixing tank (2) is also provided with a water circulation mechanism (8); the water circulation mechanism (8) includes an inlet and outlet (81) opened at the lower part of the side wall of the mixing tank (2), an opening and closing valve (82) provided at the inlet and outlet (81), and a circulating water pipe (83) with one end connected to the inlet and outlet (81) and the other end used to connect to an external water source.

6. A paint mixer according to claim 1, characterized in that, The sealing top cover (3) is provided with a feed inlet (31), and an openable feed end cover (311) is installed at the feed inlet (31); the sealing top cover (3) is also provided with multiple pressure relief ports (32), and each pressure relief port (32) is equipped with a pressure relief valve (321).

7. A paint mixer according to claim 1, characterized in that, The bottom of the mixing tank (2) is provided with a discharge port (21), and a discharge valve (211) is installed at the discharge port (21); the bottom of the mixing tank (2) is also provided with at least three casters (22).

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