Toning device for TiO2 pigment composite coating

Abstract

The utility model discloses a color mixing device for a TiO2 pigment composite coating. The color mixing device comprises a kettle body, a kettle cover, a flange connecting piece, a driving mechanism and a stirring assembly, the kettle body and the kettle cover are connected through a flange connecting piece, an internal stirring cavity is in a closed state during working, TiO2 pigment and various coating raw materials can be added through a feeding port and a liquid inlet in the kettle cover, and the stirring assembly can be driven by the driving mechanism to rotate to complete stirring, dispersing and color mixing operation. Through the closed design, the stirring speed of the stirring assembly can be increased, the dispersion effect and the color mixing efficiency can be improved, the color mixing is uniform, the color mixing device is suitable for color mixing of a large amount of or various mixed coating raw materials, and the adaptability is high under the condition that the coating in the cavity cannot be splashed or overflowed. The flange connecting piece is designed to be detachable, the kettle cover is opened after connection is removed, the positions and the number of the stirring blades of the stirring assembly on the inner side of the kettle cover can be adjusted according to different color mixing requirements, or stirring assemblies of different models can be replaced on the kettle cover, or kettle covers with stirring assemblies of other models can be directly replaced. The driving mechanism on the outer side of the kettle cover and the stirring assembly on the inner side of the kettle cover are convenient to repair and maintain after disassembly, and the operation is simple and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of coating color adjustment, in particular to a color adjustment device applied to TiO2 pigment composite coating. Background Art

[0002] With the development and progress of the construction market, single-color or multi-color paints have become the main force in stone-like coatings. The pigments used include iron oxides, phthalocyanines, organic reds, organic yellows, and white pigments. Among them, titanium dioxide pigments (titanium dioxide pigments) are generally the main white pigments. Due to their excellent light resistance, weather resistance, chemical stability, UV shielding, non-toxicity, opacity, and low price, titanium dioxide pigments are widely used in the coatings industry. In the construction industry, they are used as colorants in artificial marble, terrazzo flooring, and interior and exterior wall coatings. Their purpose is to provide coverage, color, and durability to the coating.

[0003] In the production process of titanium dioxide pigment composite coatings, the coating needs to be tinted. The current common tinting method is to use a tinting device to mix and stir the pigment with the coating raw materials so that the pigment can be evenly mixed with the coating raw materials to achieve tinting.

[0004] Common composite paint coloring devices in the prior art mainly include open and closed types. The open design often uses a coloring tank or basin as a stirring container, which has the advantages of convenient adjustment of the stirring position, replacement and maintenance of the stirring components. However, when the amount of paint is large or the stirring speed is fast, it is easy to cause paint splashing or overflow. Disadvantages, such as small amounts of water-soluble paint, such as a paint preparation coloring device disclosed in Chinese patent publication number CN212790591U, a paint preparation coloring device disclosed in Chinese patent publication number CN214915436U, and a paint coloring device disclosed in Chinese patent application publication number CN116747781A, etc. The closed design mostly adopts a kettle structure, and pigments and coatings are poured into the kettle through a preset feed port on the kettle cover. It has the characteristics of good sealing performance, fast stirring speed, high efficiency and good dispersion effect, but it is not convenient to replace the stirring tool, adjust the stirring position and maintain the motor / reducer. It is mostly used for large quantities of water-dispersible and water-dilutable coatings. For example, the Chinese patent with announcement number CN210646066U discloses a color mixing kettle for chemical coating production and the Chinese patent with announcement number CN214514016U discloses a paint mixing kettle with uniform color for coating production.

[0005] Therefore, the conventional paint mixing and coloring device has the problem of not being able to achieve both high coloring efficiency and convenient adjustment, replacement, and maintenance. Utility Model Content

[0006] In order to overcome the technical problem that the mixed paint color mixing device described in the above-mentioned prior art cannot take into account both high color mixing efficiency and convenient adjustment, replacement and maintenance operations, the utility model provides a color mixing device for TiO2 pigment composite paint.

[0007] The technical solution adopted by the present invention to solve the problem is:

[0008] A toning device for a TiO2 pigment composite coating, comprising:

[0009] A kettle body and a kettle cover, wherein the bottom of the kettle body is provided with a discharge port, the top of the kettle cover is provided with a feed port and multiple liquid inlets, and a stirring cavity is formed between the kettle body and the kettle cover;

[0010] A flange connection member, the flange connection member comprising a first flange connection portion and a second flange connection portion that are detachably connected, the first flange connection portion being fixedly connected to the top of the kettle body, and the second flange connection portion being fixedly connected to the bottom of the kettle cover;

[0011] A driving mechanism and a stirring component, wherein the driving mechanism is arranged on the top of the kettle cover, the stirring component is arranged in the stirring cavity, and the output end of the driving mechanism is connected to the input end of the stirring component.

[0012] In a preferred embodiment, the first flange connection portion protrudes outward to form a first flange, and the second flange connection portion protrudes outward to form a second flange. The first flange and the second flange are arranged opposite to each other and are connected through a connecting piece.

[0013] Furthermore, the kettle body and the first flange connection portion, and the kettle cover and the second flange connection portion are integrally formed by a brazing process.

[0014] Furthermore, the feed port, the end of the liquid inlet away from the kettle cover, and the end of the discharge port away from the kettle body are all provided with a third flange connection part, and the upper end surfaces of the third flange connection parts of the feed port and the liquid inlet are equal in height.

[0015] In another preferred embodiment, the top of the kettle cover is further provided with an annular boss which passes through it from top to bottom, the driving mechanism is fixedly mounted on the annular boss, and the input end of the stirring assembly passes through the annular boss and is connected to the output end of the driving mechanism.

[0016] Furthermore, the driving mechanism includes a motor and a reduction mechanism arranged at the lower end of the motor, the stirring assembly includes a stirring rod and a stirring blade arranged at the lower end of the stirring rod, and the stirring rod passes through the annular boss and is connected to the output shaft of the reduction mechanism.

[0017] In another preferred embodiment, the color adjustment device of the TiO2 pigment composite coating also includes a heating tube and an insulation layer, wherein the heating tube is spirally arranged on the outer peripheral side of the kettle body; the insulation layer is sleeved on the outer peripheral side of the kettle body, and the insulation layer wraps the heating tube.

[0018] Furthermore, the color mixing device of the TiO2 pigment composite coating also includes a support, a plurality of the supports are arranged at intervals on the outer peripheral side of the kettle body, and the supports and the kettle body are integrally formed by a brazing process.

[0019] In another preferred embodiment, the color adjustment device of the TiO2 pigment composite coating further includes a temperature sensor, which is located in the lower area of ​​the stirring chamber, and the bottom of the kettle is provided with several temperature sensor interfaces that pass through it and correspond to the positions of the temperature sensors.

[0020] Furthermore, the color mixing device of the TiO2 pigment composite coating also includes a pressure sensor, which is located in the upper area of ​​the stirring chamber, and the top of the kettle cover is provided with several pressure sensor interfaces that pass through it and correspond to the positions of the pressure sensors.

[0021] In summary, the toning device for TiO2 pigment composite coating provided by the present invention has at least the following technical effects compared to the prior art:

[0022] 1) The kettle body and lid of the utility model are connected by a flange connector. During operation, the internal stirring chamber is in a closed state. TiO2 pigment and various coating materials can be added through the feed and liquid inlets on the kettle lid. The driving mechanism drives the stirring assembly to rotate to complete the stirring, dispersion and color matching operations. The closed design can increase the stirring speed of the stirring assembly while ensuring that the paint in the chamber does not splash or overflow, improving the dispersion effect and color matching efficiency, and achieving uniform color matching. It is suitable for color matching of large quantities or multiple mixed coating materials and has strong adaptability.

[0023] 2) The flange connection of the utility model is detachable. After the connection is released and the kettle cover is opened, the stirring blade position and the number of stirring blades of the stirring assembly inside the kettle cover can be adjusted according to different color mixing requirements, or different types of stirring assemblies can be replaced on the kettle cover, or the kettle cover with other types of stirring assemblies can be directly replaced. After disassembly, the driving mechanism outside the kettle cover and the stirring assembly inside the kettle cover can be easily repaired and maintained, and the operation is simple and convenient.

[0024] 3) The kettle cover of the present invention is provided with a through annular boss, and the driving mechanism is fixedly mounted on the annular boss, and the input end of the stirring assembly passes through the annular boss and is connected to the output end of the driving mechanism. During installation, the driving mechanism is first mounted on the annular boss, and then the input end of the stirring assembly passes through the annular boss from the inside of the kettle cover and is connected to the output shaft of the driving mechanism, and then the flange connector is connected; when disassembly or maintenance is required, the flange connector is first opened, and then the stirring assembly and driving mechanism are disconnected from the inside of the kettle cover, and then the driving mechanism is disassembled. The structural design is simple and reasonable, and it facilitates the assembly, disassembly, maintenance, and adjustment of the driving mechanism and stirring assembly on the basis of achieving driven stirring;

[0025] 4) The kettle cover and the first flange connection part, and the kettle body and the second flange connection part of the utility model are designed as an integrated structure with high structural strength. After the flange connection parts are released, the device as a whole becomes a two-part structure with no need to use additional connection structures for assembly and connection. The structural design is simple and reasonable. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic structural diagram of a toning device for a TiO2 pigment composite coating according to the present invention;

[0027] Figure 2 A schematic cross-sectional view of a toning device for a TiO2 pigment composite coating according to the present invention;

[0028] The meanings of the reference numerals are as follows:

[0029] 1. Kettle body; 11. Discharge port; 12. Temperature sensor interface;

[0030] 2. Kettle cover; 21. Feed inlet; 22. Liquid inlet; 23. Annular boss; 24. Pressure sensor interface;

[0031] 3. Flange connection; 31. First flange connection; 32. Second flange connection; 33. Connection piece;

[0032] 4. Driving mechanism; 41. Motor; 42. Speed ​​reduction mechanism;

[0033] 5. Stirring assembly; 51. Stirring rod; 52. Stirring blade;

[0034] 6. The third flange connection;

[0035] 7. Heating tube;

[0036] 8. Insulation layer;

[0037] 9. Support. DETAILED DESCRIPTION

[0038] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0039] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0041] See also Figure 1 and Figure 2 As shown, according to an embodiment of the present invention, a coloring device for a TiO2 pigment composite coating comprises a kettle body 1 and a kettle cover 2 located above the kettle body 1. A discharge port 11 is provided at the bottom of the kettle body 1, and a feed port 21 and a plurality of liquid inlets 22 are provided at the top of the kettle cover 2. A stirring chamber for accommodating TiO2 pigment and various coating raw materials is formed between the kettle body 1 and the kettle cover 2. The discharge port 11 is used to discharge the coating that has been stirred, dispersed, and toned in the stirring chamber from the bottom; the feed port 21 is used to add a preliminary mixture of TiO2 pigment, TiO2 pigment-solvent, or TiO2 pigment-solvent-coating raw materials (i.e., a mixture that has not yet been stirred) to be stirred and mixed into the stirring chamber; and the plurality of liquid inlets 22 are used to add different types of coating raw materials to be stirred and mixed into the stirring chamber.

[0042] In particular, the diameter of the discharge port 11 is set to be larger than the diameter of the liquid inlet 22. On the one hand, this is to prevent the initial mixture of TiO2 pigment, TiO2 pigment-solvent or TiO2 pigment-solvent-paint raw material from being added through only one discharge port 11 when the color grading device is used for mixing and grading TiO2 pigment and a single paint raw material, without opening the remaining liquid inlets 22 to add other paint raw materials; on the other hand, this is to prevent the initial mixture of TiO2 pigment powder, solvent and paint raw material that has not been stirred and dispersed from easily forming agglomerates and causing blockage of small-diameter pipes.

[0043] See also Figure 1 and Figure 2As shown, the color-adjusting device for the TiO2 pigment composite coating further includes a flange connection 3, which includes a detachably connected first flange connection portion 31 and a detachably connected second flange connection portion 32. The first flange connection portion 31 is fixedly connected to the top of the kettle body 1, and the second flange connection portion 32 is fixedly connected to the bottom of the kettle cover 2. Specifically, after the first flange connection portion 31 and the second flange connection portion 32 are connected, the color-adjusting device as a whole becomes a closed structure. The interior of the kettle body 1, the kettle cover 2, the first flange connection portion 31, and the second flange connection portion 32 are combined to form a stirring chamber for accommodating TiO2 pigment and various coating raw materials. After the first flange connection portion 31 and the second flange connection portion 32 are disconnected, the kettle cover 2 can be opened from above the kettle body 1, and the color-adjusting device as a whole becomes an open structure, facilitating operations such as repair, maintenance, adjustment, or replacement of internal components.

[0044] See also Figure 2 As shown, the color matching device of the TiO2 pigment composite coating also includes a driving mechanism 4 and a stirring assembly 5. The driving mechanism 4 is arranged on the top of the kettle cover 2, and the stirring assembly 5 is arranged in the stirring chamber, and the output end of the driving mechanism 4 is connected to the input end of the stirring assembly 5. The driving mechanism 4 is used to drive the stirring assembly 5 to rotate in the stirring chamber to complete the stirring, dispersing and color matching operation. Specifically, since the flange connection 3 is a detachable structural design, after the first flange connection part 31 and the second flange connection part 32 are disconnected, the kettle cover can be opened, and then the stirring blade position and the number of stirring blades of the stirring assembly 5 inside the kettle cover 2 can be adjusted according to different color matching requirements, or different models of stirring assemblies 5 can be replaced on the kettle cover 2, or the kettle cover 2 with other models of stirring assemblies 5 can be directly replaced. After the kettle cover 2 is removed, it is convenient to repair and maintain the driving mechanism 4 on the outside of the kettle cover 2 and the stirring assembly 5 on the inside. The structural design is simple and reasonable, and the operation is easy.

[0045] In the technical solution of this embodiment, the kettle body 1 and kettle cover 2 are connected by a flange connector 3. During operation, the internal stirring chamber is closed. TiO2 pigment, solvent, and various coating materials can be added through the feed port 21 and liquid inlet 22 on the kettle cover 2. The driving mechanism 4 drives the stirring assembly 5 to rotate to complete the stirring, dispersion, and color matching operations. This closed structural design ensures that the paint in the stirring chamber does not splash or overflow, while increasing the stirring speed of the stirring assembly 5, improving the dispersion effect and color matching efficiency of the paint mixture, and achieving uniform color matching. It is suitable for color matching of large quantities or multiple mixed coating materials and has strong adaptability.

[0046] Furthermore, a sealing ring (not shown in the figure) may be provided between the first flange connection portion 31 and the second flange connection portion 32 to further improve the sealing performance of the color mixing device.

[0047] Example 1

[0048] In a preferred embodiment of the present invention, a technical solution is provided on how to assemble the driving mechanism 4 and the stirring assembly 5 on the kettle cover 2.

[0049] See also Figure 1 and Figure 2 As shown, in the technical solution of this embodiment, the top of the kettle cover 2 is also provided with an annular boss 23 that passes through it from top to bottom, so that a through hole is formed in the middle of the annular boss 23; the driving mechanism 4 is fixedly mounted on the annular boss 23, and the input end of the stirring assembly 5 passes through the annular boss 23 and is connected to the output end of the driving mechanism 4. Specifically, when the color mixing device needs to be assembled, the driving mechanism 4 is first installed on the annular boss 23, and then the input end of the stirring assembly 5 passes through the annular boss 23 from the inside of the kettle cover 2 and is connected to the output shaft of the driving mechanism 4, and then the flange connector 3 is connected together. When disassembly or maintenance is required, the flange connector 3 is first opened, and then the stirring assembly 5 and the driving mechanism 4 are disconnected on the inside of the kettle cover 2, and then the driving mechanism 4 is disassembled.

[0050] This embodiment can facilitate the assembly, disassembly, maintenance and adjustment of the driving mechanism 4 and the stirring assembly 5 on the basis of achieving high-speed driving and stirring.

[0051] Further, see Figure 1 and Figure 2 As shown, the drive mechanism 4 includes a motor 41 and a reduction mechanism 42 disposed at the lower end of the motor 41. The stirring assembly 5 includes a stirring rod 51 and a stirring blade 52 disposed at the lower end of the stirring rod 51. The stirring rod 51 passes through the annular boss 23 and is connected to the output shaft of the reduction mechanism 42. The output shaft of the reduction mechanism 42 is the output end of the drive mechanism 4, and the stirring rod 51 is the input end of the stirring assembly 5. The output shaft of the motor 41 is connected to the input shaft of the reduction mechanism 42, and the output shaft of the reduction mechanism 42 is connected to the stirring rod 51. Starting the motor 41 can drive the stirring blade 52 to rotate to achieve a stirring and toning effect.

[0052] In particular, the speed reduction mechanism 42 between the motor 41 and the stirring rod 51 can achieve a variable speed transmission effect by arranging multiple gears in the box.

[0053] Example 2

[0054] In another preferred embodiment of the present invention, a specific structural design scheme for the flange connection 3 and the third flange connection portion 6 is provided.

[0055] See also Figure 2As shown, in the technical solution of this embodiment, the first flange connection portion 31 protrudes outward to form a first flange, and the second flange connection portion 32 protrudes outward to form a second flange. The first flange and the second flange are arranged opposite each other and are connected together by a connecting member 33 to achieve a detachable connection. The outwardly protruding structural portion of the first and second flanges should be at least larger than the width of the connecting member to ensure that the connecting member is not blocked or interfered with by the kettle cover 2 or the kettle body 1 when passing through the first and second flanges, and that the connecting member does not protrude outward after passing through the first and second flanges.

[0056] In particular, the connecting member 33 can be any one of a bolt, a screw or a screw.

[0057] Furthermore, the kettle body 1 and the first flange connection 31, as well as the kettle cover 2 and the second flange connection 32, are integrally formed through a brazing process. This integrated structural design improves the overall structural strength of the color mixing device. After the flange connection 3 is released, the entire device is reduced to a two-part structure: the kettle cover 2-second flange connection 32, and the kettle body 1-first flange connection 31. This eliminates the need for additional connecting structures, resulting in a simple and reasonable structural design.

[0058] See also Figure 1 As shown, in an optional solution of this embodiment, the feed inlet 21 and the liquid inlet 22 are each provided with a third flange connection 6 at the end away from the kettle cover 2, as well as the end away from the kettle body 1 of the discharge port 11. The upper end surfaces of the third flange connections 6 of the feed inlet 21 and each liquid inlet 22 are at the same height. Specifically, the third flange connection 6 is used to connect to the flange connection of an external pipeline, thereby establishing communication between the color mixing device and the feed and discharge pipelines. Under the closed design, the feeding operation of TiO2 pigment and paint raw materials and the discharge operation of the paint mixture after the color mixing is completed can be realized, further improving the sealing performance of the internal stirring chamber.

[0059] Example 3

[0060] In another preferred embodiment of the present invention, a specific structural design scheme for the kettle body 1 is provided.

[0061] See also Figure 2As shown, in the technical solution of this embodiment, the toning device for the TiO2 pigment composite coating further includes a heating tube 7, which is spirally arranged around the outer periphery of the kettle body 1. Specifically, by activating the heating tube 7, the temperature within the stirring chamber can be adjusted, and heating is simultaneously applied during the stirring and toning process. Agglomerated coating mixture due to temperature effects is then pulverized by the stirring assembly 5 at high temperatures, thereby fully blending the TiO2 pigment with the various coating raw materials. After the stirring process is completed, any coating mixture remaining adhered to the inner walls of the kettle body 1 and lid 2 can be quickly and conveniently cleaned at high temperatures.

[0062] See also Figure 1 and Figure 2 As shown, the color tinting device of the TiO2 pigment composite coating also includes an insulation layer 8, which is sleeved on the outer peripheral side of the kettle body 1, and the insulation layer 8 is wrapped around the heating tube 7 to provide insulation for the heating tube 7 and the kettle body 1, thereby improving the heating effect of the kettle body 1 and playing a protective role to prevent the operator from accidentally touching the heating tube 7 and causing burns.

[0063] In particular, the heating tube 7 may preferably be a PTC electric heating tube, and the thermal insulation layer 8 may preferably be made of thermal insulation materials such as glass fiber material or thin flexible aerogel felt.

[0064] Further, see Figure 2 As shown, the color-adjusting device for the TiO2 pigment composite coating also includes a support 9, a plurality of supports 9 being spaced apart on the outer peripheral side of the kettle body 1, and the supports 9 and the kettle body 1 being integrally formed by a brazing process. The support 9 is used in conjunction with an external positioning seat, and the lower side of the support 9 is placed directly on the positioning seat or clamped on the positioning seat for positioning. The height of the color-adjusting device can be adjusted by adjusting the height of the positioning seat to meet the needs of stirring at different heights, so that the heights of the feed port 21, the liquid inlet 22, and the discharge port 11 are adapted to external feed and discharge pipes at different heights. Furthermore, the above-mentioned integrated structural design can further improve the overall structural strength of the color-adjusting device.

[0065] Example 4

[0066] In another preferred embodiment of the present invention, a technical solution is provided on how to set up sensor interfaces on the kettle body 1 and the kettle cover 2.

[0067] See also Figure 2As shown, in an optional solution of this embodiment, the toning device for the TiO2 pigment composite coating further includes a temperature sensor (not shown). The temperature sensor is located in the lower region of the stirring chamber. The bottom of the kettle body 1 is provided with a plurality of temperature sensor interfaces 12, which extend through the kettle body 1 and correspond to the positions of the temperature sensors. The temperature sensor is used to monitor the temperature within the stirring chamber to ensure that the coagulated bulk coating mixture completes the stirring and toning operation after heating, while also preventing damage to the composite coating caused by excessive temperatures.

[0068] See also Figure 2 As shown, in another alternative embodiment of this embodiment, the tinting device for the TiO2 pigment composite coating further includes a pressure sensor (not shown). The pressure sensor is located in the upper region of the stirring chamber. The top of the kettle cover 2 is provided with a plurality of pressure sensor interfaces 24, which extend through the kettle cover 2 and correspond to the positions of the pressure sensors. The pressure sensor is used to monitor the pressure within the stirring chamber to prevent excessive internal pressure from damaging the tinting device or impairing the sealing performance.

[0069] In particular, the kettle cover 2 is also provided with an exhaust port whose opening and closing is controlled by a stop valve, which is used to discharge gas to reduce the internal pressure of the stirring chamber when the internal pressure is too high.

[0070] The technical means disclosed in the present invention are not limited to those disclosed in the above-mentioned embodiments, but also include technical solutions composed of any combination of the above-mentioned technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A color mixing device for TiO2 pigment composite coating, characterized in that: include: A kettle body and a kettle cover, wherein the bottom of the kettle body is provided with a discharge port, the top of the kettle cover is provided with a feed port and multiple liquid inlets, and a stirring cavity is formed between the kettle body and the kettle cover; A flange connection member, the flange connection member comprising a first flange connection portion and a second flange connection portion that are detachably connected, the first flange connection portion being fixedly connected to the top of the kettle body, and the second flange connection portion being fixedly connected to the bottom of the kettle cover; A driving mechanism and a stirring component, wherein the driving mechanism is arranged on the top of the kettle cover, the stirring component is arranged in the stirring cavity, and the output end of the driving mechanism is connected to the input end of the stirring component.

2. The toning device for TiO2 pigment composite coating according to claim 1, characterized in that: The first flange connection portion protrudes outward to form a first flange, and the second flange connection portion protrudes outward to form a second flange. The first flange and the second flange are arranged opposite to each other and are connected through a connecting piece.

3. The toning device for TiO2 pigment composite coating according to claim 2, characterized in that: The kettle body and the first flange connection portion, and the kettle cover and the second flange connection portion are integrally formed by a brazing process.

4. The toning device for TiO2 pigment composite coating according to claim 3, characterized in that: The feed port, the end of the liquid inlet away from the kettle cover, and the end of the discharge port away from the kettle body are all provided with a third flange connection part, and the upper end surfaces of the third flange connection parts of the feed port and the liquid inlet are equal in height.

5. The toning device for TiO2 pigment composite coating according to claim 1, characterized in that: The top of the kettle cover is also provided with an annular boss which passes through it from top to bottom. The driving mechanism is fixedly mounted on the annular boss. The input end of the stirring assembly passes through the annular boss and is connected to the output end of the driving mechanism.

6. The toning device for TiO2 pigment composite coating according to claim 5, characterized in that: The driving mechanism includes a motor and a reduction mechanism arranged at the lower end of the motor, and the stirring assembly includes a stirring rod and a stirring blade arranged at the lower end of the stirring rod. The stirring rod passes through the annular boss and is connected to the output shaft of the reduction mechanism.

7. The toning device for TiO2 pigment composite coating according to claim 1, characterized in that: It also includes a heating pipe and a heat preservation layer. The heating pipe is spirally arranged around the outer peripheral side of the kettle body. The heat preservation layer is sleeved on the outer peripheral side of the kettle body, and the heat preservation layer wraps the heating pipe.

8. The toning device for TiO2 pigment composite coating according to claim 7, characterized in that: It also includes a support, a plurality of the supports are arranged at intervals on the outer peripheral side of the kettle body, and the supports and the kettle body are integrally formed by a brazing process.

9. The toning device for TiO2 pigment composite coating according to any one of claims 1 to 8, characterized in that: It also includes a temperature sensor, which is located in the lower area of ​​the stirring cavity. The bottom of the kettle is provided with a plurality of temperature sensor interfaces that pass through the bottom of the kettle and correspond to the positions of the temperature sensors.

10. The toning device for TiO2 pigment composite coating according to any one of claims 1 to 8, characterized in that: It also includes a pressure sensor, which is located in the upper area of ​​the stirring chamber. The top of the kettle cover is provided with a plurality of pressure sensor interfaces that pass through it and correspond to the positions of the pressure sensors.

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