Coating stirring device

Abstract

The coating stirring device comprises a supporting assembly, a clamping assembly and a stirring assembly, the supporting assembly comprises a base and a supporting frame, the base is provided with a station area used for containing a tank body, the clamping assembly is connected with the base and used for fixing the tank body in the station area, and the stirring assembly comprises a stirring shaft and a scraping plate. The stirring shaft is rotatably connected with the supporting frame, and the scraping plate is movably connected with the stirring shaft, so that the scraping plate can abut against the inner wall of the tank body. According to the coating stirring device disclosed by the embodiment of the utility model, in the stirring process, the scraping plate can abut against the inner wall of the tank body to scrape off the heat insulation coating attached to the inner wall of the tank body, so that the coating in the tank body is fully and uniformly mixed.

Description

Technical Field

[0001] This utility model relates to the technical field of mixing equipment, specifically to a coating mixing device. Background Technology

[0002] Thermal insulation coatings are widely used in chemical, construction and other fields due to their excellent thermal insulation performance. Thermal insulation coatings are typically composed of multiple components, including binders, fillers, and additives. These components vary significantly in physical properties such as density and particle size, making them prone to problems like stratification and sedimentation during storage and transportation. This can affect the performance and effectiveness of the coating, therefore, it is necessary to stir and mix them before use.

[0003] The paint mixing device in the related technology cannot scrape off the heat insulation paint adhering to the inner wall of the tank and mix it during the mixing process, resulting in uneven paint mixing. Utility Model Content

[0004] This utility model aims to at least partially solve one of the technical problems in the related art.

[0005] Therefore, embodiments of this utility model propose a paint mixing device in which a scraper can abut against the inner wall of the tank during the mixing process, scraping off the heat-insulating paint adhering to the inner wall of the tank, thereby making the paint in the tank fully and evenly mixed.

[0006] The paint mixing device of this utility model embodiment includes a support assembly, a clamping assembly, and a mixing assembly. The support assembly includes a base and a support frame. The base has a work area for placing a tank. The clamping assembly is connected to the base and is used to fix the tank in the work area. The mixing assembly includes a mixing shaft and a scraper. The mixing shaft is rotatably connected to the support frame, and the scraper is movably connected to the mixing shaft so that the scraper can abut against the inner wall of the tank.

[0007] In some embodiments, the stirring assembly further includes a cylinder and a slide rod, the cylinder being connected to the stirring shaft, the slide rod being connected to the scraper, and the slide rod being slidably inserted through the cylinder.

[0008] In some embodiments, a spring is provided inside the cylinder, with both ends of the spring connected to the cylinder and the slide rod respectively, and the spring is used to apply a radially inward elastic force to the slide rod along the stirring shaft.

[0009] In some embodiments, the scraper is elongated and extends axially along the stirring shaft.

[0010] In some embodiments, the number of scrapers is multiple, and the multiple scrapers are evenly arranged circumferentially along the stirring shaft.

[0011] In some embodiments, the stirring assembly further includes a stirring disc and a plurality of stirring blades arranged circumferentially spaced along the stirring disc, one end of the stirring shaft is connected to the support frame, the stirring disc is located at the end of the stirring shaft away from the support frame, and the stirring blades are connected to the stirring disc.

[0012] In some embodiments, the support frame includes a fixed frame and a lifting frame, the fixed frame is connected to the base, the lifting frame is vertically connected to the fixed frame, and the stirring assembly is connected to the lifting frame.

[0013] In some embodiments, the clamping assembly includes a plurality of clamping plates arranged circumferentially spaced along the stirring shaft, each clamping plate having a stop portion for abutting against the outer wall of the tank, and the clamping plates being slidably connected to the base radially along the stirring shaft.

[0014] In some embodiments, the paint mixing device further includes a drive assembly comprising a lead screw and a nut, the lead screw being rotatably connected to the base, the nut being connected to the clamping plate, and the nut being fitted onto the lead screw and threadedly engaged with the lead screw.

[0015] In some embodiments, the drive assembly corresponds one-to-one with the clamping plate, and the drive assembly further includes a bevel gear, which is fitted onto the lead screw and rotates synchronously with the lead screw, and at least two bevel gears mesh with each other.

[0016] The paint mixing device of this utility model embodiment is suitable for mixing heat-insulating paint in a tank. Specifically, firstly, the tank containing paint is placed in the work area and positioned by the clamping assembly. Then, the mixing assembly is placed into the tank, and the mixing shaft is controlled to rotate relative to the support frame. The heat-insulating paint in the tank is then mixed by the mixing assembly. At the same time, by adjusting the scraper, it can be made to stop against the inner wall of the tank. During the rotation, the heat-insulating paint adhering to the inner wall of the tank is scraped off, thereby making the paint in the tank fully and uniformly mixed. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a paint mixing device according to an embodiment of the present invention.

[0018] Figure 2 This is a structural schematic diagram of the paint mixing device according to another embodiment of the present invention.

[0019] Figure 3 This is a schematic diagram of the structure of the stirring component of a paint stirring device according to an embodiment of the present invention.

[0020] Figure 4This is a schematic diagram showing the connection between the cylinder and the slide bar of a coating mixing device according to an embodiment of this utility model.

[0021] Figure 5 This is a schematic diagram of the clamping assembly of a coating mixing device according to an embodiment of the present invention.

[0022] Figure 6 This is a schematic diagram of the drive assembly of a paint mixing device according to an embodiment of the present invention.

[0023] Figure label:

[0024] 100. Coating mixing device;

[0025] 1. Support components; 11. Base; 111. Workstation area; 112. Slide groove; 113. Mounting groove; 12. Support frame; 121. Fixing frame; 122. Lifting frame; 1221. Lifting plate; 1222. Guide rod; 13. Lifting power components;

[0026] 2. Clamping assembly; 21. Clamping plate; 22. Silicone pad;

[0027] 3. Stirring assembly; 31. Stirring shaft; 32. Scraper; 33. Stirring motor; 34. Cylinder; 341. Limiting hole; 35. Slide rod; 36. Spring; 37. Stirring disc; 38. Stirring blade;

[0028] 4. Drive assembly; 41. Lead screw; 42. Lead screw nut; 43. Bevel gear; 44. Drive motor. Detailed Implementation

[0029] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0030] like Figures 1 to 4 As shown, the paint mixing device 100 of this utility model embodiment includes a support assembly 1, a clamping assembly 2, and a mixing assembly 3. The support assembly 1 includes a base 11 and a support frame 12. The base 11 has a work area 111 for placing a tank. The clamping assembly 2 is connected to the base 11 and is used to fix the tank in the work area 111. The mixing assembly 3 includes a mixing shaft 31 and a scraper 32. The mixing shaft 31 is rotatably connected to the support frame 12, and the scraper 32 is movably connected to the mixing shaft 31 so that the scraper 32 can abut against the inner wall of the tank.

[0031] The paint mixing device 100 of this utility model embodiment is suitable for mixing heat-insulating paint in a tank. Specifically, firstly, the tank containing paint is placed in the work station area 111 and positioned by the clamping component 2. Then, the mixing component 3 is placed into the tank, and the mixing shaft 31 is controlled to rotate relative to the support frame 12. The heat-insulating paint in the tank can be mixed by the mixing component 3. At the same time, by adjusting the scraper 32, it can be made to stop against the inner wall of the tank. During the rotation, the heat-insulating paint adhering to the inner wall of the tank is scraped off, thereby making the paint in the tank fully and uniformly mixed.

[0032] Alternatively, the container may be cylindrical, such as the original container for packaging paint, or other containers that can be used to hold paint.

[0033] Optionally, the stirring assembly 3 also includes a stirring motor 33, the output shaft of which is connected to the stirring shaft 31. Thus, the stirring motor 33 can control the stirring shaft 31 to rotate automatically, reducing manual labor and improving ease of operation.

[0034] Specifically, the stirring motor 33 is a servo motor. After the stirring component 3 is placed in the tank, the stirring motor 33 controls the rotation speed of the stirring shaft 31 to gradually increase, so as to achieve full mixing and uniform stirring of the coating.

[0035] As an example, such as Figure 1 and Figure 2 As shown, the base 11 is rectangular and has multiple support feet on its lower side to improve its stability. The upper surface of the base 11 has the aforementioned work area 111. The clamping assembly 2 is located on the upper side of the base 11 to fix the tank in the work area 111. The stirring assembly 3 is located directly above the work area 111, allowing the tank to be placed in the work area 111. The stirring shaft 31 of the stirring assembly 3 can be vertically inserted into the tank to stir the coating.

[0036] In some embodiments, such as Figure 3 and Figure 4 As shown, the stirring assembly 3 also includes a cylinder 34 and a slide rod 35. The cylinder 34 is connected to the stirring shaft 31, and the slide rod 35 is connected to the scraper 32. The slide rod 35 is slidably inserted through the cylinder 34.

[0037] During the mixing process, the stirring shaft 31 drives the scraper 32 to rotate. The rotation speed of the stirring shaft 31 gradually increases. Under the action of centrifugal force, the scraper 32 and the slide bar 35 rotate away from the stirring shaft 31, so that the scraper 32 can automatically stop against the inner wall of the tank. Thus, the scraper 32 can be in contact with the inner wall of the tank without manual adjustment, so that the coating on the inner wall of the tank can be scraped off by the scraper 32.

[0038] In some embodiments, such as Figure 4As shown, a spring 36 is provided inside the cylinder 34. The two ends of the spring 36 are connected to the cylinder 34 and the slide rod 35 respectively. The spring 36 is used to apply a radial inward elastic force to the slide rod 35 along the stirring shaft 31.

[0039] With the above settings, when the stirring shaft 31 rotates at a high speed, the centrifugal force on the slide rod 35 can overcome the elastic force applied to the slide rod 35 by the spring 36, causing the scraper 32 to abut against the inner wall of the tank, thus improving the uniformity of the coating mixing. After the mixing work is completed, under the action of the spring 36, the slide rod 35 drives the scraper 32 to move closer to the stirring shaft 31, causing the scraper 32 to disengage from the inner wall of the tank, which makes it easier to remove the stirring assembly 3 from the tank.

[0040] In some embodiments, such as Figure 3 As shown, the scraper 32 is long and extends along the axial direction of the stirring shaft 31.

[0041] After the mixing component 3 is placed into the tank, the scraper 32 extends along the axial direction of the tank. The height of the scraper 32 matches that of the tank. When the scraper 32 stops against the inner wall of the tank, it can scrape off most of the coating adhering to the inner wall of the tank, thereby making the coating in the tank fully mixed.

[0042] Optionally, such as Figure 3 As shown, the dimension of the scraper 32 in the circumferential direction of the stirring shaft 31 gradually decreases outward along the radial direction of the stirring shaft 31.

[0043] This improves the flexibility of the scraper 32, making it easier for the scraper 32 to pass through the paint and stop against the inner wall of the tank, thus scraping off the paint from the inner wall of the tank more thoroughly.

[0044] In some embodiments, there are multiple scrapers 32, which are evenly arranged around the stirring shaft 31.

[0045] Optionally, the number of scrapers 32 is four.

[0046] As an example, such as Figures 1 to 4 As shown, the cylinder 34 and the slide rod 35 form a telescopic assembly. The scraper 32 and the stirring shaft 31 are connected by two telescopic assemblies, which are respectively located near the two ends of the scraper 32. Both the cylinder 34 and the slide rod 35 extend radially along the stirring shaft 31, and both have elliptical cross-sections. The cylinder 34 is fixedly connected to the stirring shaft 31, and the slide rod 35 is fixedly connected to the scraper 32. The end of the cylinder 34 near the scraper 32 has a limiting hole 341, and the slide rod 35 is slidably inserted through the limiting hole 341. The outer side of the slide rod 35 fits against the hole wall of the limiting hole 341, thereby sealing the connection between the slide rod 35 and the cylinder 34 and preventing the coating from entering the interior of the cylinder 34.

[0047] Of course, in other embodiments, a sealing ring can also be provided on the inner wall of the limiting hole 341 to increase the sealing at the connection between the slide rod 35 and the cylinder 34.

[0048] In some embodiments, such as Figure 2 and Figure 3 As shown, the stirring assembly 3 also includes a stirring plate 37 and a plurality of stirring blades 38 arranged circumferentially along the stirring plate 37. One end of the stirring shaft 31 is connected to the support frame 12, the stirring plate 37 is located at the end of the stirring shaft 31 away from the support frame 12, and the stirring blades 38 are connected to the stirring plate 37.

[0049] The mixing plate 37 is located below the mixing shaft 31. After the mixing assembly 3 is placed into the tank, the mixing plate 37 is located at the bottom of the tank. The mixing shaft 31 drives the mixing plate 37 to rotate, and the multiple mixing blades 38 on the mixing plate 37 rotate accordingly. This can drive the paint to flow and form a vortex, thereby achieving uniform mixing of the paint.

[0050] As an example, such as Figure 3 As shown, the mixing disc 37 is fitted onto the lower end of the mixing shaft 31 and rotates synchronously with the mixing shaft 31. The mixing blade 38 is rectangular and fixedly connected to the upper surface of the mixing disc 37. The side of the mixing blade 38 close to the mixing shaft 31 is attached to the mixing shaft 31, and the side away from the mixing shaft 31 coincides with the outer surface of the mixing disc 37. This results in a larger contact area between the mixing blade 38 and the coating, which can drive more coating to flow and form vortices more quickly, thereby improving the mixing efficiency.

[0051] In some embodiments, such as Figure 1 and Figure 2 As shown, the support frame 12 includes a fixed frame 121 and a lifting frame 122. The fixed frame 121 is connected to the base 11, and the lifting frame 122 is vertically connected to the fixed frame 121. The stirring assembly 3 is connected to the lifting frame 122.

[0052] The lifting frame 122 can be raised or lowered relative to the fixed frame 121, which can also control the raising or lowering of the mixing component 3. Thus, before mixing the paint, the mixing component 3 is first raised to place the tank containing the paint in the work area 111. Then, the mixing component 3 is lowered so that it is inserted into the tank. The mixing motor 33 is then started to mix the paint. After mixing is completed, the mixing component 3 is raised to move the tank out of the work area 111.

[0053] Optionally, a lifting power component 13 is provided between the lifting frame 122 and the fixed frame 121. The lifting power component 13 includes a cylinder and a telescopic rod. The cylinder is connected to the fixed frame 121, and the telescopic rod is connected to the lifting frame 122. The telescopic rod is telescopically connected to the cylinder. The lifting power component 13 is an electric push rod, a hydraulic cylinder, a pneumatic cylinder, or an electro-hydraulic push rod.

[0054] Therefore, the lifting power component 13 can control the lifting frame 122 to rise and fall, improving the ease of operation of the paint mixing work.

[0055] As an example, such as Figure 1 and Figure 2 As shown, the fixed frame 121 extends vertically, and its lower end is fixedly connected to the base 11; the lifting frame 122 includes a lifting plate 1221 and a guide rod 1222. The guide rod 1222 is slidably inserted through the base 11. The lifting plate 1221 is elongated and perpendicular to the guide rod 1222. One end of the lifting plate 1221 is connected to the guide rod 1222, and the other end is connected to the stirring motor 33 of the stirring assembly 3, thereby achieving a stable installation of the stirring assembly 3.

[0056] The lifting power component 13 is located between the stirring assembly 3 and the guide rod 1222. The lifting power component 13 is vertically arranged. The cylinder of the lifting power component 13 is connected to the base 11. The telescopic rod of the lifting power component 13 is connected to the lifting plate 1221. The lifting power component 13 can control the lifting of the stirring assembly 3.

[0057] In some embodiments, such as Figure 2 and Figure 5 As shown, the clamping assembly 2 includes a plurality of clamping plates 21 arranged circumferentially along the stirring shaft 31. The clamping plates 21 have a stop portion for stopping against the outer wall of the tank. The clamping plates 21 are slidably connected to the base 11 along the radial direction of the stirring shaft 31.

[0058] Multiple clamping plates 21 slide simultaneously toward the tank and abut against the tank, thus clamping the tank and fixing it stably in the work area 111, so that the tank and the stirring component 3 correspond in the vertical direction. The stirring component 3 can be inserted into the tank by controlling its descent. At the same time, the multiple clamping plates 21 clamp the tank to prevent the tank from moving or shaking during the stirring process, ensuring the stability of the tank during the stirring process.

[0059] Optionally, the clamping plate 21 is in the shape of an arc plate, and the aforementioned stop portion is formed on the side of the clamping plate 21 near the tank body.

[0060] This increases the contact area between the clamping plate 21 and the tank, thereby improving the stability of the tank during the coating mixing process.

[0061] Optionally, the clamping plate 21 is connected to a silicone pad 22 on one side of the can body to prevent it from being pressed against.

[0062] Therefore, it can protect the outer wall of the tank and prevent the clamping plate 21 from applying too much clamping force to the tank, which would cause damage to the tank.

[0063] Optionally, the number of clamping plates 21 is four, and the four clamping plates 21 are evenly distributed along the circumference of the stirring shaft 31.

[0064] In some embodiments, such as Figure 5 and Figure 6 As shown, the paint mixing device 100 also includes a drive assembly 4, which includes a lead screw 41 and a nut 42. The lead screw 41 is rotatably connected to the base 11, and the nut 42 is connected to the clamping plate 21. The nut 42 is fitted onto the lead screw 41 and is threadedly engaged with the lead screw 41.

[0065] The screw 41 is driven to rotate, and the screw 41 and the screw nut 42 are connected by a thread, which in turn drives the clamping plate 21 to move, thereby achieving the clamping and fixing of the tank.

[0066] In some embodiments, the drive assembly 4 corresponds one-to-one with the clamping plate 21. The drive assembly 4 also includes a bevel gear 43, which is fitted onto the lead screw 41 and rotates synchronously with the lead screw 41. At least two bevel gears 43 mesh with each other.

[0067] Multiple lead screws 41 are linked by bevel gears 43. By driving one lead screw 41 to rotate, multiple lead screws 41 can be driven to rotate synchronously, thereby controlling multiple clamping plates 21 to move synchronously along the radial direction of the stirring shaft 31, so that multiple clamping plates 21 can simultaneously abut against the tank body to achieve clamping and fixing of the tank body.

[0068] Optionally, a drive motor 44 is connected to one side of the support base, and the output end of the drive motor 44 is connected to one of the lead screws 41 to drive the lead screw 41 to rotate.

[0069] As an example, such as Figure 5 and Figure 6 As shown, there are four clamping plates 21, and the drive assembly 4 corresponds to each clamping plate 21. The base 11 has four sliding grooves 112, which extend radially along the stirring shaft 31. The clamping plates 21 are located on the upper side of the base 11. The screw nut 42 is slidably fitted in the sliding groove 112 and is fixedly connected to the lower side of the clamping plate 21. The screw rod 41 extends along the length of the sliding groove 112 and is rotatably connected to the base 11. The screw rod 41 can be rotated to drive the screw nut 42 to move, thereby driving the clamping plates 21 to move.

[0070] The lower side of the base 11 has a mounting groove 113 for mounting the bevel gear 43. The mounting groove 113 is aligned vertically with the stirring shaft 31, that is, the mounting groove 113 is located at the center of the four clamping plates 21. The end of the lead screw 41 extends into the mounting groove 113. The bevel gear 43 is fitted onto the lead screw 41 and rotates synchronously with the lead screw 41. Two adjacent bevel gears 43 along the circumference of the stirring shaft 31 mesh with each other, and the four bevel gears 43 mesh sequentially. By driving one of the lead screws 41 to rotate through the drive motor 44, the other three lead screws 41 can be driven to rotate synchronously, thereby controlling the four clamping plates 21 to move simultaneously, thereby clamping and fixing the tank to prevent the tank from moving or shaking during the mixing process, ensuring the stability of the tank during the mixing process, so as to ensure the stable operation of the paint mixing work.

[0071] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0072] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0073] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0074] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0075] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0076] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A paint mixing device (100), characterized in that, Suitable for stirring coatings in a tank, the coating stirring device (100) includes a support assembly (1), a clamping assembly (2), and a stirring assembly (3). The support assembly (1) includes a base (11) and a support frame (12). The base (11) has a work area (111) for placing the tank. The clamping assembly (2) is connected to the base (11) to fix the tank in the work area (111). The stirring assembly (3) includes a stirring shaft (31) and a scraper (32). The stirring shaft (31) is rotatably connected to the support frame (12), and the scraper (32) is movably connected to the stirring shaft (31) so that the scraper (32) can abut against the inner wall of the tank.

2. The paint mixing device (100) according to claim 1, characterized in that, The stirring assembly (3) further includes a cylinder (34) and a slide rod (35). The cylinder (34) is connected to the stirring shaft (31), and the slide rod (35) is connected to the scraper (32). The slide rod (35) is slidably inserted through the cylinder (34).

3. The paint mixing device (100) according to claim 2, characterized in that, A spring (36) is provided inside the cylinder (34). The two ends of the spring (36) are connected to the cylinder (34) and the slide rod (35) respectively. The spring (36) is used to apply a radial inward elastic force to the slide rod (35) along the stirring shaft (31).

4. The paint mixing device (100) according to claim 1, characterized in that, The scraper (32) is elongated and extends along the axial direction of the stirring shaft (31).

5. The paint mixing device (100) according to claim 1, characterized in that, The number of scrapers (32) is multiple, and the multiple scrapers (32) are evenly arranged along the circumference of the stirring shaft (31).

6. The paint mixing device (100) according to claim 1, characterized in that, The stirring assembly (3) further includes a stirring plate (37) and a plurality of stirring blades (38) arranged circumferentially along the stirring plate (37). One end of the stirring shaft (31) is connected to the support frame (12). The stirring plate (37) is located at the end of the stirring shaft (31) away from the support frame (12). The stirring blades (38) are connected to the stirring plate (37).

7. The paint mixing device (100) according to claim 1, characterized in that, The support frame (12) includes a fixed frame (121) and a lifting frame (122). The fixed frame (121) is connected to the base (11), and the lifting frame (122) is connected to the fixed frame (121) in a lifting manner. The stirring assembly (3) is connected to the lifting frame (122).

8. The paint mixing apparatus (100) according to any one of claims 1-7, characterized in that, The clamping assembly (2) includes a plurality of clamping plates (21) arranged circumferentially spaced along the stirring shaft (31), the clamping plates (21) having a stop portion for abutting against the outer wall of the tank, and the clamping plates (21) being slidably connected to the base (11) radially along the stirring shaft (31).

9. The paint mixing device (100) according to claim 8, characterized in that, It also includes a drive assembly (4), which includes a lead screw (41) and a nut (42). The lead screw (41) is rotatably connected to the base (11), and the nut (42) is connected to the clamping plate (21). The nut (42) is fitted onto the lead screw (41) and threadedly engaged with the lead screw (41).

10. The paint mixing device (100) according to claim 9, characterized in that, The drive assembly (4) corresponds one-to-one with the clamping plate (21). The drive assembly (4) also includes a bevel gear (43). The bevel gear (43) is fitted onto the lead screw (41) and rotates synchronously with the lead screw (41). At least two bevel gears (43) mesh with each other.

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