Paint mixing device
By using the design of cantilever stirring shaft and folding blade in the paint mixing device, the problem of mixing blind spots in the mixing mechanism in the prior art is solved, and a more efficient stirring and mixing and convenient cleaning process is achieved.
Patent Information
- Application Number
- CN202422640565.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-10-30
AI Technical Summary
The mixing mechanism of the existing paint paint mixing stirring tank has a blind mixing angle, which leads to difficulty in cleaning, low stirring speed, low mixing efficiency, high energy consumption, and rapid material temperature rise.
A paint mixing device is designed, using a cantilevered stirring shaft, canceling the lower fulcrum structure, and setting up multiple groups of stirring paddles fixed to the stirring shaft axially spaced apart. Folding blades are used, with a length less than half of the radius of the kettle body, improving the axial and radial circulation paths of the material.
Effectively eliminate the blind spots of mixing, improve the mixing efficiency, increase the stirring speed to 300-500 rpm, reduce the temperature rise of the material, simplify the cleaning process, and improve the cleaning efficiency.
Smart Images
Figure CN223027115U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of stirring transmission, and particularly relates to a paint mixing device. Background Art
[0002] The stirring mechanism of the existing paint mixing and stirring kettle includes a stirring shaft and stirring paddles arranged on the stirring shaft. The stirring shaft usually extends from the top to the bottom and is placed in a lower fulcrum structure, forming a mixing dead angle at the bottom of the stirring kettle, resulting in difficult cleaning and affecting the cleaning effect; the stirring paddles usually adopt inclined paddle blades arranged at 45°, and the length of the inclined paddle blades is close to the inner diameter of the stirring kettle, with large stirring resistance, resulting in low stirring speed, unable to form good convection, low mixing efficiency, high energy consumption, and relatively fast temperature rise of the material as the mixing time increases.
[0003] Therefore, it is necessary to provide a paint mixing device to solve or at least partially solve the above problems. Summary of the Utility Model
[0004] The utility model provides a paint mixing device, which eliminates the mixing dead angle and improves the mixing efficiency by optimizing the structure of the stirring mechanism.
[0005] To achieve the above object, the utility model provides the following technical solutions:
[0006] A paint mixing device includes a kettle body, a stirring mechanism and a driving mechanism. The driving mechanism is arranged at the top of the kettle body and drives the stirring mechanism arranged in the kettle body. The stirring mechanism includes a stirring shaft and stirring paddles. The stirring shaft extends downward from the top in the kettle body to a position that does not touch the bottom of the kettle body. There are multiple stirring paddles, and the multiple stirring paddles are fixedly arranged on the stirring shaft at intervals along the axial direction; multiple folding paddle blades are arranged at equal intervals along the circumferential direction of the stirring paddle. The folding paddle blade includes a first folding part and a second folding part that are bent from the inside to the outside along the radial direction. The first folding part is inclined with respect to the horizontal plane, and the second folding part is bent downward relative to the first folding part.
[0007] Preferably, the folding paddle blade takes the midpoint of the side at a higher position as the bending starting point and the end point of the side at a lower position as the bending end point, and is bent downward to form the first folding part and the second folding part.
[0008] Preferably, the inclination angle of the first folding part relative to the horizontal plane is 30° - 60°.
[0009] Preferably, the inclination angle of the second folding part relative to the first folding part is 120° - 150°.
[0010] Preferably, the length of the folding paddle blade is less than half of the radius of the kettle body.
[0011] Preferably, the stirring paddle further includes a paddle hub and a paddle mounting plate. The number of the paddle mounting plates is the same as that of the folding blades. A plurality of the paddle mounting plates are arranged at equal intervals on the outer periphery of the paddle hub, and the paddle mounting plates are welded to the paddle hub; the folding blades are connected to the paddle mounting plates in a one-to-one correspondence, and the folding blades are fixedly connected to the paddle mounting plates by screws.
[0012] Preferably, the inclination angle of the paddle mounting plate relative to the horizontal plane is the same as the inclination angle of the first fold relative to the horizontal plane, and the first fold and the corresponding paddle mounting plate are located on the same plane.
[0013] Preferably, the stirring paddle is fixedly installed on the stirring shaft through the paddle hub. A positioning hole is provided on the paddle hub, and the stirring paddle is fixed by screws passing through the positioning hole.
[0014] Preferably, the drive assembly includes a motor, a speed reducer and a coupling connected in sequence. A frame is provided at the center of the top of the kettle body, the drive assembly is arranged on the frame, the coupling connects the stirring shaft, and the motor drives the stirring shaft to rotate.
[0015] Preferably, a discharge valve is provided at the center of the bottom of the kettle body.
[0016] Compared with the prior art, the technical solution of the present invention has beneficial effects.
[0017] For example, with this paint mixing device, the stirring shaft is of a cantilever type, and the lower fulcrum structure is cancelled, so that there is no dead angle in stirring; multiple groups of stirring paddles arranged axially are adopted, and folding blades are used. The folding angle of the folding blades of each group of stirring paddles changes the axial and radial circulation paths of the material, effectively improving the stirring and mixing effect of the material.
[0018] For another example, when the length of the folding blade is less than half of the radius of the kettle body for stirring, the small length reduces the rotation resistance, and the rotation speed can be increased to 300 - 500 revolutions per minute, improving the axial and radial circulation rates of the material, and effectively improving the stirring and mixing effect of the material.
[0019] For another example, a discharge valve is provided at the center of the bottom of the kettle body, so that the discharge has no dead angle, reducing the material residue in the kettle body, and at the same time facilitating cleaning and improving the cleaning efficiency. Description of the Drawings
[0020] Figure 1 is a schematic structural diagram of the paint mixing device in the embodiment of the present invention;
[0021] Figure 2 is a schematic structural diagram of the stirring paddle in the embodiment of the present invention;
[0022] Figure 3 It is the top view of the stirring paddle in the embodiment of the present utility model.
[0023] Explanation of reference numerals:
[0024] 1. Motor; 2. Reducer; 3. Coupling; 4. Frame; 5. Stirring shaft; 6. Stirring paddle; 7. Kettle body; 8. Discharge valve;
[0025] 61. Paddle blade hub; 62. Folding blade; 63. Paddle blade mounting plate;
[0026] 611. Positioning hole; 621. First fold; 622. Second fold. Specific embodiments
[0027] To make the purpose, features and beneficial effects of the present utility model more obvious and understandable, the specific embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. It can be understood that the specific embodiments described below are only used to explain the present utility model, rather than limiting the present utility model. And, the same or similar reference numerals may be used in the drawings to refer to the same or similar elements in different embodiments, and the description of the same or similar elements in different embodiments and the description of the elements, features, effects, etc. of the prior art may also be omitted. It should be noted that the "axial direction", "radial direction" and "circumferential direction" hereinafter all refer to the "axial direction", "radial direction" and "circumferential direction" of the stirring shaft 5.
[0028] Figure 1 It is a schematic structural diagram of a paint mixing device in the embodiment of the present utility model; Figure 2 It is a schematic structural diagram of the stirring paddle in the embodiment of the present utility model; Figure 3 It is the top view of the stirring paddle in the embodiment of the present utility model.
[0029] Refer to Figures 1 - 3 An embodiment of the present utility model provides a paint mixing device.
[0030] Specifically, it includes a kettle body 7, a stirring mechanism and a driving mechanism. The driving mechanism is arranged at the top of the kettle body 7 and is connected to drive the stirring mechanism arranged in the kettle body 7. The stirring mechanism includes a stirring shaft 5 and a stirring paddle 6. The stirring shaft 5 extends downward from the top inside the kettle body 7 to a position that does not touch the bottom of the kettle body 7. There are multiple stirring paddles 6, and the multiple stirring paddles 6 are fixedly arranged at intervals along the axial direction on the stirring shaft 5; Multiple folding blades 62 are arranged at equal intervals along the circumferential direction of the stirring paddle 6. The folding blade 62 includes a first fold 621 and a second fold 622 that are bent from the inside to the outside along the radial direction. The first fold 621 is inclined with respect to the horizontal plane, and the second fold 622 is bent downward relative to the first fold 621.
[0031] In some embodiments, the folding blade 62 bends downward with the midpoint of the higher side as the starting point of bending and the end point of the lower side as the ending point of bending, forming a first folding blade 621 and a second folding blade 622. The first folding blade 621 and the second folding blade 622 bend in opposite directions relative to the horizontal plane, so that when the folding blade 62 rotates with the stirring shaft 5, it drives the material to move in different directions. That is, when the first folding blade 621 drives the material to rise, the second folding blade 622 drives the material to fall, changing the axial and radial circulation paths of the material and effectively improving the stirring and mixing effect of the material.
[0032] In some embodiments, the inclination angle of the first folding blade 621 relative to the horizontal plane is 30° - 60°.
[0033] In some embodiments, the inclination angle of the second folding blade 622 relative to the first folding blade 621 is 120° - 150°.
[0034] In some embodiments, the length of the folding blade 62 is less than half of the radius of the kettle body 7. Reducing the length reduces the rotational resistance, and the rotational speed can be increased to 300 - 500 revolutions per minute, improving the axial and radial circulation rates of the material and effectively improving the stirring and mixing effect of the material.
[0035] In some embodiments, the stirring paddle 6 further includes a paddle hub 61 and paddle mounting plates 63. The number of paddle mounting plates 63 is the same as the number of folding blades 62. A plurality of paddle mounting plates 63 are arranged at equal intervals on the outer periphery of the paddle hub 61, and the paddle mounting plates 63 are welded to the paddle hub 61; the folding blades 62 are connected to the paddle mounting plates 63 one by one, and the folding blades 62 are fixedly connected to the paddle mounting plates 63 by screws.
[0036] In some embodiments, the inclination angle of the paddle mounting plate 63 relative to the horizontal plane is the same as the inclination angle of the first folding blade 621 relative to the horizontal plane, and the first folding blade 621 and the corresponding paddle mounting plate 63 are in the same plane.
[0037] In some embodiments, the stirring paddle 6 is fixedly installed on the stirring shaft 5 through the paddle hub 61. A positioning hole 611 is provided on the paddle hub 61, and the stirring paddle 6 is fixed by screws passing through the positioning hole 611.
[0038] In some embodiments, the drive assembly includes a motor 1, a speed reducer 2, and a coupling 3 connected in sequence. A frame 4 is provided at the center of the top of the kettle body 7, the drive assembly is arranged on the frame 4, the coupling 3 connects the stirring shaft 5, and the motor 1 drives the stirring shaft 5 to rotate.
[0039] In some embodiments, a discharge valve 8 is provided at the center of the bottom of the kettle body 7, and there is no dead angle for discharging, reducing the material residue in the kettle body 7. At the same time, it is convenient for cleaning and improves the cleaning efficiency.
[0040] In summary, for the paint mixing device provided by the present utility model, the stirring shaft 5 adopts a cantilever type, eliminating the lower fulcrum structure, so that there is no dead angle in stirring; a plurality of groups of stirring paddles 6 arranged axially are adopted, and hinge blades 62 are used. The hinge angles of the hinge blades 62 of each group of stirring paddles 6 change the axial and radial circulation paths of the material, effectively improving the stirring and mixing effect of the material.
[0041] Furthermore, the length of the hinge blade 62 of the present utility model is less than half of the radius of the kettle body 7 for stirring. The small length reduces the rotational resistance, and the rotational speed can be increased to 300 - 500 revolutions per minute, improving the axial and radial circulation rates of the material, and effectively improving the stirring and mixing effect of the material.
[0042] Furthermore, the present utility model is provided with a discharge valve 8 at the center of the bottom of the kettle body 7, so that the discharge has no dead angle, reducing the material residue in the kettle body 7, and at the same time facilitating cleaning and improving the cleaning efficiency.
[0043] Although specific embodiments have been described above, these embodiments are not intended to limit the scope of the disclosure of the present utility model, even when describing a single embodiment relative to a specific feature. The feature examples provided in the disclosure of the present utility model are intended for illustration rather than limitation, unless otherwise stated. In specific implementations, according to actual needs and when technically feasible, the technical features of one or more dependent claims can be combined with the technical features of the independent claim, and can be combined in any appropriate manner rather than only through the specific combinations listed in the claims from the technical features of the corresponding independent claims.
[0044] Although the present utility model is disclosed as above, the present utility model is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the scope defined by the claims.
Claims
1. A paint mixing device, characterized in that: It includes a kettle body, a stirring mechanism and a driving mechanism, wherein the driving mechanism is arranged at the top of the kettle body and is connected to drive the stirring mechanism arranged in the kettle body, the stirring mechanism includes a stirring shaft and a stirring paddle, the stirring shaft extends downward from the top of the kettle body to a position not touching the bottom of the kettle body, there are multiple stirring paddles, and the multiple stirring paddles are fixed to the stirring shaft at intervals along the axial direction; the stirring paddle is provided with multiple folding blades at equal intervals along the circumferential direction, the folding blades include a first fold and a second fold which are bent from the inside to the outside along the radial direction, the first fold is arranged to be inclined with respect to the horizontal plane, and the second fold is bent downward relative to the first fold.
2. The paint mixing device according to claim 1, characterized in that: The folding blade takes the midpoint of the side located at a high position as the bending starting point and the end point of the side located at a low position as the bending end point, and is bent downwardly to form the first fold and the second fold.
3. The paint mixing device according to claim 1, characterized in that: The inclination angle of the first folding leaf relative to the horizontal plane is 30°-60°.
4. The paint mixing device according to claim 3, characterized in that: The inclination angle of the second folding leaf relative to the first folding leaf is 120°-150°.
5. The paint mixing device according to claim 1, characterized in that: The length of the folding blade is less than half of the radius of the kettle body.
6. The paint mixing device according to claim 1, characterized in that: The agitator also includes a blade hub and a blade mounting plate, the number of the blade mounting plates is consistent with the number of the folding blades, a plurality of the blade mounting plates are arranged at equal intervals on the outer periphery of the blade hub, and the blade mounting plate is welded to the blade hub; the folding blades are connected to the blade mounting plates in a one-to-one correspondence, and the folding blades are fixedly connected to the blade mounting plates by screws.
7. The paint mixing device according to claim 6, characterized in that: The inclination angle of the blade mounting plate relative to the horizontal plane is the same as the inclination angle of the first hinge relative to the horizontal plane, and the first hinge and the correspondingly installed blade mounting plate are located on the same plane.
8. The paint mixing device according to claim 6, characterized in that: The stirring paddle is fixedly mounted on the stirring shaft through the impeller hub sleeve. A positioning hole is provided on the impeller hub, and the stirring paddle is fixed by a screw passing through the positioning hole.
9. The paint mixing device according to claim 1, characterized in that: The driving mechanism comprises a motor, a reducer and a coupling which are connected in sequence. A frame is arranged at the top center of the kettle body, the driving mechanism is arranged on the frame, the coupling is connected to the stirring shaft, and the motor drives the stirring shaft to rotate.
10. The paint mixing device according to claim 1, characterized in that: A discharge valve is arranged at the bottom center of the kettle body.