A paint mixing kettle

Abstract

The utility model discloses a kind of paint mixing kettle, it is related to paint production technical field, including mixing kettle and mixing assembly, mixing assembly includes drive assembly, rotating sleeve and rotating rod, rotating sleeve is rotatably installed in the output end of drive assembly, rotating rod is installed in rotating sleeve bottom end and is inserted into mixing kettle, rotating sleeve is circumferentially provided with spiral guide groove, ball cooperating with guide groove is installed on mixing kettle, when drive assembly drives rotating sleeve to lift, ball and guide groove cooperate to make rotating sleeve synchronous rotation.Through the mixing assembly of lifting while rotating, the static mixing limitation of traditional equipment is completely broken: shear region is constantly updated during lifting, and forced material forms three-dimensional turbulent flow;Continuous operation characteristics avoid production interruption, especially suitable for long-period reaction of high solid content polyester paint;Axial convection effectively inhibits the stratification of water-based paint and the sedimentation of UV paint, and improves the homogenization efficiency and batch stability of multi-component system from the root.

Description

Technical Field

[0001] This utility model belongs to the field of paint production technology, and specifically relates to a paint mixing kettle. Background Technology

[0002] In the coatings production industry, paint mixing tanks are core equipment for achieving efficient mixing of pigments, resins, solvents, and additives. They are widely used in the production of acrylic, polyester, polyurethane, alkyd, epoxy, UV-curable, and water-based coatings. Traditional paint mixing tanks use a fixed-height rotating stirring mode, which has significant drawbacks:

[0003] Mixing blind zone problem: When the agitator operates at a fixed height, laminar flow zones easily form at the top and bottom of the vessel. High-viscosity epoxy / alkyd coatings are prone to pigment agglomeration, while low-viscosity water-based coatings cause filler sedimentation due to density differences, both requiring manual intervention;

[0004] Low dispersion efficiency: Lightweight components such as photoinitiators in UV-curable coatings and aluminum powder in metallic paints tend to float on the liquid surface. Fixed stirring cannot achieve axial forced convection, resulting in uneven dispersion.

[0005] Production interruption risk: The existing adjustable height agitator requires manual raising and lowering during shutdown, which not only disrupts the continuity of the polyurethane coating reaction, but may also cause local curing due to temperature fluctuations. Utility Model Content

[0006] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a paint mixing kettle to solve the problems mentioned in the background art.

[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0008] A paint mixing tank includes a mixing tank and a mixing assembly. The mixing assembly includes a drive assembly, a rotating sleeve, and a rotating rod. The rotating sleeve is rotatably mounted on the output end of the drive assembly. The rotating rod is mounted on the bottom end of the rotating sleeve and inserted into the paint mixing tank. The rotating sleeve has a spiral guide groove circumferentially provided. The paint mixing tank is equipped with balls that cooperate with the guide groove. When the drive assembly drives the rotating sleeve to rise and fall, the balls and the guide groove cooperate to make the rotating sleeve rotate synchronously.

[0009] Preferably, the rotating rod is equipped with a stirring blade along its circumference.

[0010] Preferably, the stirring blade is concave upward along the rotating rod.

[0011] Preferably, the distance between the topmost stirring blade and the top cover of the paint mixing kettle is less than the stroke distance of the rotating sleeve.

[0012] Preferably, a cleaning component is also installed on the paint mixing tank. The output end of the cleaning component is installed on the mixing component. The cleaning component includes a receiving cavity, which is opened along the length direction of the rotating sleeve and the rotating rod. A spray pipe is installed in the receiving cavity. Multiple sets of nozzles are installed on the spray pipe along the axial direction. Spray holes corresponding to the nozzles are opened on the rotating rod. A water inlet pipe is rotatably connected to the outer end of the spray pipe.

[0013] Preferably, the receiving cavity is slidably connected to the nozzle, and the nozzle orifice is not higher than the corresponding nozzle head.

[0014] Preferably, a matching snap-fit ​​component is installed between the water inlet pipe and the rotating sleeve, the snap-fit ​​component consisting of a magnet and an electromagnet.

[0015] Preferably, a guide wheel is installed on the paint mixing kettle, and the water inlet pipe bypasses the guide wheel.

[0016] Preferably, the cleaning component has a cleaning state and a waiting state. When in the cleaning state, the nozzle descends, the magnetic poles of the locking parts are different, the locking parts are engaged, the nozzle is aligned with the spray hole, and the nozzle and the rotating sleeve rotate synchronously. When in the waiting state, the magnetic poles of the locking parts are different, the locking parts are separated, the water inlet pipe drives the nozzle to rise, and the deformation of the elastic element increases.

[0017] Preferably, a one-way door is installed on the nozzle, allowing water to flow out from the inside. The receiving cavity is fixedly connected to the spray pipe, and the nozzle corresponds one-to-one with the corresponding nozzle head.

[0018] This invention proposes a paint mixing kettle that completely breaks through the static mixing limitations of traditional equipment through a mixing component that can be raised, lowered, and rotated simultaneously: the lifting process continuously updates the shear zone, forcing the material to form three-dimensional turbulence; the continuous operation characteristic avoids production interruption, and is especially suitable for the long-cycle reaction of high-solids polyester coatings; axial convection effectively inhibits the stratification of water-based coatings and the sedimentation of UV coatings, fundamentally improving the homogenization efficiency and batch stability of multi-component systems.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] Figure 1 This utility model proposes a three-dimensional structure for a paint mixing tank. Figure 1 ;

[0021] Figure 2 This utility model proposes a three-dimensional structure for a paint mixing tank. Figure 2 ;

[0022] Figure 3 This is a left view of the paint mixing tank proposed in this utility model;

[0023] Figure 4for Figure 3 A sectional perspective view along the AA direction;

[0024] Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0025] Reference numerals: 1. Paint mixing tank; 11. Top cover; 12. Inlet; 13. Outlet; 14. Valve; 2. Mixing assembly; 21. Drive assembly; 211. Motor; 212. First synchronizing element; 213. Lead screw; 214. Second synchronizing element; 22. Rotating sleeve; 23. Guide groove; 24. Rotating rod; 25. Stirring blade; 26. Ball bearing; 3. Mounting plate; 4. Cleaning assembly; 41. Water inlet pipe; 42. Spray pipe; 43. Receiving cavity; 44. Guide wheel; 45. Elastic element; 46. Snap-fit ​​element; 47. Spray head; 48. Spray hole. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar symbols denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0027] Example 1

[0028] refer to Figures 1 to 5 The paint mixing kettle described in this embodiment includes a paint mixing kettle 1 and a mixing component 2. The paint mixing kettle 1 includes a detachable top cover 11 and an outlet 13. The top cover 11 has a feed inlet 12 and the outlet 13 is equipped with a valve 14. The bottom of the inner wall of the paint mixing kettle 1 is a smooth cone to avoid dead corners. The outlet 13 is located at the bottom of the paint mixing kettle 1.

[0029] The mixing assembly 2 includes a drive assembly 21, a rotating sleeve 22, and a rotating rod 24. The rotating sleeve 22 is rotatably mounted on the output end of the drive assembly 21. The drive assembly 21 is mounted on the top cover 1. The rotating rod 24 is mounted on the bottom end of the rotating sleeve 22 and inserted into the paint mixing tank 1. The rotating sleeve 22 has a spiral guide groove 23 along its circumference. The top cover 1 is mounted on an mounting plate 3. A ball bearing 26 that rolls with the guide groove 23 is fixedly mounted on the mounting plate 3. When the drive assembly 21 drives the rotating sleeve 22 to rise and fall, the ball bearing 26 and the guide groove 23 cooperate to make the rotating sleeve 22 rotate synchronously clockwise or counterclockwise, so that the rotating rod 24 rises and falls while rotating.

[0030] The rotating rod 24 is rotatably connected to the top cover 11 and sealed to prevent the paint from being carried out of the paint mixing tank 1 when the rotating rod 24 is raised.

[0031] A stirring blade 25 is mounted on the rotating rod 24 in a circumferential direction.

[0032] Preferably, the stirring blade 25 is recessed upward along the rotating rod 24 and the stirring blade 25 is a spiral blade. The upward recess prevents the paint from being left inside the stirring blade 25 during material discharge and reduces dead angles in the material conveying process.

[0033] It is worth noting that the number of stirring blades 25 is selected according to the height of the paint mixing kettle 1. Preferably, the distance between any two adjacent sets of stirring blades 25 is equal, and the distance between the topmost stirring blade 25 and the top cover 11 of the paint mixing kettle 1 is less than the travel distance of the rotating sleeve 22, so as to avoid the stirring blades 25 being blocked by the top cover 11 when they rise.

[0034] The drive assembly 21 is mainly used to drive the rotating sleeve 22 to rise and fall. The drive assembly 21 can use common linear drive components such as cylinders.

[0035] Preferably, the drive assembly 21 includes a motor 211, a first synchronizing element 212, a lead screw 213, and a second synchronizing element 214. The first synchronizing element 212 is composed of a synchronous belt and synchronous pulleys, that is, the two synchronous pulleys are driven by the synchronous belt. The driving end and the driven end of the first synchronizing element 212 are fixedly connected to the output end of the motor 211 and the bottom end of the lead screw 213, respectively. The lead screw 213 is rotatably mounted on the top cover 11. One end of the second synchronizing element 214 is threadedly connected to the lead screw 213, and the other end is rotatably connected to the top or bottom end of the rotating sleeve 22.

[0036] The working principle of the mixing component 2: The motor 211 starts and drives the lead screw 213 to rotate through the synchronizing action of the first synchronizing element 212. The lead screw 213 drives the second synchronizing element 214 to rise and fall, which in turn drives the rotating sleeve 22 to rise and fall. During the rising and falling of the rotating sleeve 22, the ball bearings 26 and the guide groove 23 cooperate to make the rotating sleeve 22 rotate synchronously and repeatedly, thereby driving the rotating rod 24 and the stirring blade 24 to rise and fall. The stirring blade 24 automatically reciprocates along the axis while continuously rotating. This composite motion completely breaks the static mixing limitations of traditional equipment: the rising and falling process continuously updates the shear zone, forcing the material to form three-dimensional turbulence; the continuous operation characteristic avoids production interruptions, especially suitable for the long-cycle reaction of high-solids polyester coatings; axial convection effectively inhibits the stratification of water-based coatings and the sedimentation of UV coatings, fundamentally improving the homogenization efficiency and batch stability of multi-component systems.

[0037] Example 2

[0038] refer to Figures 1 to 5 The paint mixing kettle described in this embodiment also includes a cleaning component 4.

[0039] The cleaning component 4 includes a receiving cavity 43, which is opened along the length of the rotating sleeve 22 and the rotating rod 24. A spray pipe 42 is installed in the receiving cavity 43. Multiple sets of nozzles 47 are installed in the spray pipe 42 along the axial direction. Spray holes 48 corresponding to the nozzles 47 are opened on the rotating rod 24. A water inlet pipe 41 is connected to the outer end of the spray pipe 42.

[0040] As a preferred embodiment, the receiving cavity 43 is slidably connected to the nozzle 42, and the nozzle 48 is not higher than the corresponding nozzle 47.

[0041] A matching snap-fit ​​component 46 is installed between the water inlet pipe 41 and the rotating sleeve 22. The snap-fit ​​component 46 consists of a magnet and an electromagnet. The magnet is installed on the water inlet pipe 41 or the rotating sleeve 22, and the electromagnet is installed on the rotating sleeve 22 or the water inlet pipe 41. When the electromagnet is energized in the reverse direction, its magnetism changes.

[0042] The diameter of the nozzle 48 is larger than that of the nozzle 47. The nozzle 47 is embedded in the nozzle pipe 42, and the nozzle pipe 42 is close to the inner wall of the receiving cavity 43.

[0043] Preferably, both the nozzle 47 and the spray hole 48 are located below the topmost set of stirring blades 25 to prevent the spray hole 48 from moving out of the paint mixing tank 1 when it is raised.

[0044] The cleaning component 4 has a cleaning state and a waiting state. When the mixing component 2 is mixing the material, the cleaning component 4 is in the waiting state. When the coating mixing is completed and the valve 14 is opened to exit from the outlet 13, the mixing component 2 continues to operate, and the cleaning component 4 is in the cleaning state.

[0045] The nozzle 47 is positioned higher than the nozzle 48 to prevent the nozzle 47 from becoming clogged during standby.

[0046] A guide wheel 44 is installed on the paint mixing tank 1, and the water inlet pipe 41 passes around the guide wheel 44.

[0047] Preferably, the guide wheel 44 has a tendency to guide the water inlet pipe 41 outward. A coil spring can be installed on the guide wheel 44 so that the end of the water inlet pipe 41 naturally extends when it follows the rotating sleeve 22 down. When the water inlet pipe 41 follows the rotating sleeve 22 up, the guide wheel 44 drives the water inlet pipe 41 to be coiled back, avoiding redundancy of the water inlet pipe 41 and increasing aesthetics.

[0048] Preferably, a retractable elastic element 49 is installed at the bottom of the nozzle 42 and the receiving cavity 44 to accelerate the descent of the nozzle 42.

[0049] When in the cleaning state, the magnetic poles of the snap-fit ​​component 46 are different, and the snap-fit ​​component 46 snaps into place. The water inlet pipe 41 drives the spray pipe 42 to descend, and the nozzle 47 is aligned with the spray hole 48. The spray pipe 42 rotates synchronously with the rotating sleeve 22. The water inlet pipe 41 extends as the rotating sleeve 22 descends and retracts as the rotating sleeve 22 rises. When in the waiting state, the magnetic poles of the snap-fit ​​component 46 are different, and the snap-fit ​​component 46 separates. The water inlet pipe 41 drives the spray pipe 42 to rise, and the nozzle 47 retracts into the receiving cavity 43 to avoid blockage. The deformation of the elastic component 49 increases.

[0050] As another preferred embodiment, a one-way door is installed on the nozzle 48, allowing water to flow out from the inside. The receiving cavity 43 is fixedly connected to the spray pipe 42, and the nozzle 48 corresponds one-to-one with the corresponding nozzle 47. When in the cleaning state, the nozzle 47 sprays a high-speed water jet, which rises and falls and rotates with the cooperation of the mixing component 2, cleaning the inner wall of the paint mixing tank 1 from all directions. When in the waiting state, the paint cannot enter the receiving cavity 43 due to the action of the one-way door.

[0051] It should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" 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 element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0052] 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.

[0053] 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.

[0054] 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.

[0055] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A paint mixing kettle, comprising a mixing kettle (1) and a mixing assembly (2), characterized in that: The mixing component (2) includes a drive component (21), a rotating sleeve (22) and a rotating rod (24). The rotating sleeve (22) is rotatably mounted on the output end of the drive component (21). The rotating rod (24) is mounted on the bottom end of the rotating sleeve (22) and inserted into the paint mixing tank (1). The rotating sleeve (22) has a spiral guide groove (23) circumferentially. The paint mixing tank (1) is equipped with a ball (26) that cooperates with the guide groove (23). When the drive component (21) drives the rotating sleeve (22) to rise and fall, the ball (26) and the guide groove (23) cooperate to make the rotating sleeve (22) rotate synchronously.

2. The paint mixing kettle according to claim 1, characterized in that: A stirring blade (25) is installed on the rotating rod (24) in the circumferential direction.

3. The paint mixing kettle according to claim 2, characterized in that: The stirring blade (25) is concave upward along the rotating rod (24).

4. The paint mixing kettle according to claim 2, characterized in that: The distance between the topmost stirring blade (25) and the top cover (11) of the paint mixing pot (1) is less than the travel distance of the rotating sleeve (22).

5. The paint mixing kettle according to claim 1, characterized in that: A cleaning component (4) is also installed on the paint mixing tank (1). The output end of the cleaning component (4) is installed on the mixing component (2). The cleaning component (4) includes a receiving cavity (43). The receiving cavity (43) is opened along the length direction of the rotating sleeve (22) and the rotating rod (24). A spray pipe (42) is installed in the receiving cavity (43). Multiple sets of nozzles (47) are installed in the spray pipe (42) along the axial direction. A spray hole (48) corresponding to the nozzle (47) is opened on the rotating rod (24). A water inlet pipe (41) is rotatably connected to the outer end of the spray pipe (42).

6. The paint mixing kettle according to claim 5, characterized in that: The receiving cavity (43) is slidably connected to the nozzle (42), and the nozzle (48) is not higher than the corresponding nozzle (47).

7. The paint mixing kettle according to claim 6, characterized in that: A matching snap-fit ​​connector (46) is installed between the water inlet pipe (41) and the rotating sleeve (22). The snap-fit ​​connector (46) is composed of a magnet and an electromagnet.

8. The paint mixing kettle according to claim 7, characterized in that: A guide wheel (44) is installed on the paint mixing tank (1), and the water inlet pipe (41) passes around the guide wheel (44).

9. The paint mixing kettle according to claim 8, characterized in that: The cleaning component (4) has a cleaning state and a waiting state. When it is in the cleaning state, the nozzle (42) descends, the magnetic poles of the snap-fit ​​(46) are different, the snap-fit ​​(46) snaps in, the nozzle (47) is aligned with the nozzle hole (48), and the nozzle (42) rotates synchronously with the rotating sleeve (22). When it is in the waiting state, the magnetic poles of the snap-fit ​​(46) are different, the snap-fit ​​(46) separates, the water inlet pipe (41) drives the nozzle (42) to rise, and the deformation of the elastic element (49) increases.

10. The paint mixing kettle according to claim 5, characterized in that: The nozzle (48) is equipped with a one-way door, which allows water to flow out from the inside. The receiving cavity (43) is fixedly connected to the nozzle (42), and the nozzle (48) corresponds to the corresponding nozzle (47).

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