A mixing device for paint and coating production

Abstract

This utility model discloses a mixing device for paint and coating production, including a kettle body with a discharge valve at the lower end and a kettle cover movably mounted on the kettle body. A premixing stirring structure is installed on the kettle cover. This utility model relates to the technical field of paint and coating production equipment. Raw materials first fall onto the rotating outer edge through a bending tube, and then converge in the area of ​​the strainer bucket. Multiple raw materials are initially mixed in a straight line. The premixed material is then driven by centrifugal force to pass through the mesh of the strainer bucket, which shears the premixed raw materials, improving the premixing effect and shortening the working time for the final mixing in the kettle. The stirring shaft and stirring rod set below the strainer bucket further mix the premixed material entering the bottom of the kettle body during rotation, ensuring the mixing quality.

Description

Technical Field

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

[0002] In the production of paints and coatings, precise proportioning and thorough mixing of materials are crucial for ensuring product quality stability. Traditional proportioning devices often involve directly adding multiple liquid raw materials into a large mixing vessel and then mixing them using a powerful agitator. With multiple raw materials added simultaneously or sequentially to the bottom of the mixing vessel, before the main agitator is activated, the materials rely solely on gravity for natural diffusion, resulting in extremely uneven mixing and easily creating areas of excessively high or low concentration. This forces the main agitator to operate for longer periods and at higher intensity to achieve uniformity, leading to low efficiency. To overcome the initial uneven mixing problem, it is often necessary to extend the mixing time and increase the mixing intensity, increasing the production cycle and energy consumption.

[0003] While existing technologies may already offer solutions to the aforementioned problems, this case aims to provide an alternative or replacement technical solution. Utility Model Content

[0004] To solve the problems mentioned in the background art, the present invention is achieved through the following technical solution: a mixing device for paint and coating production, including a kettle body, a discharge valve provided at the lower end of the kettle body, a kettle cover movably installed on the kettle body, and a premixing stirring structure installed on the kettle cover;

[0005] The premixing structure includes a rotating shaft movably inserted into the center of the vessel lid. A motor is mounted on the upper end of the rotating shaft, and a stabilizing frame is installed between the motor and the vessel lid. A premixing sleeve is mounted on the lower end of the rotating shaft. The premixing sleeve includes a strainer bucket, which is installed on the lower end of the rotating shaft. The strainer bucket has a teardrop-shaped structure and an outward-flared edge at its upper end. Multiple bent tubes are inserted into the vessel lid around the rotating shaft. One end of each bent tube inside the vessel corresponds to the outward-flared edge, and an electromagnetic valve is mounted on the outer end of each bent tube. An electromagnetic flow meter is mounted on one end of each electromagnetic valve. A stabilizing structure is installed between the outward-flared edge and the vessel lid.

[0006] Preferably, the stabilizing structure includes a turntable, which is fixedly mounted on the outward flange. The upper wall of the turntable has an inclined surface with multiple leakage notches. A bearing is installed between the turntable and the vessel lid.

[0007] Preferably, multiple baffles are installed in a circular array on the inner sidewall of the outer flange, centered on the rotation axis.

[0008] Preferably, a stirring shaft is installed on the lower wall of the strainer bucket, and multiple stirring rods are installed on the stirring shaft.

[0009] Preferably, the vessel body is equipped with multiple support legs.

[0010] Preferably, multiple bolts are movably inserted into the vessel body and the vessel cover, and each bolt is movably fitted with a nut.

[0011] Beneficial effects

[0012] This utility model provides a mixing device for paint and coating production, which has the following advantages compared with the prior art: the raw materials first fall onto the rotating outer edge through the bending tube, and then gather in the area of ​​the sieve bucket. Multiple raw materials are initially mixed in a straight line. The premixed material is then driven by centrifugal force to pass through the mesh of the sieve bucket, which shears the premixed raw materials, improves the premixing effect, and shortens the working time for the final mixing in the subsequent reactor. The stirring shaft and stirring rod set below the sieve bucket mix the premixed material entering the bottom of the reactor again during the rotation process, ensuring the mixing quality. Attached Figure Description

[0013] Figure 1 This is a top-view, partial three-dimensional structural diagram of a paint and coating production mixing device according to this utility model.

[0014] Figure 2 This is a partial three-dimensional structural diagram of a paint mixing device according to the present invention, viewed from below.

[0015] Figure 3 This is a front sectional view of a mixing device for producing paint coatings according to this utility model.

[0016] In the diagram: 1. Kettle body, 2. Discharge valve, 3. Kettle cover, 4. Rotating shaft, 5. Strainer, 6. Outward flange, 7. Bending pipe, 8. Solenoid valve, 9. Electromagnetic flow meter, 10. Turntable, 11. Inclined surface, 12. Leakage notch, 13. Bearing, 14. Baffle, 15. Stirring shaft, 16. Stirring rod, 17. Support leg, 18. Bolt, 19. Nut, 20. Motor, 21. Stabilizing frame. Detailed Implementation

[0017] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] Example: Please refer to Figure 1-3A mixing device for paint and coating production includes a vessel body 1, a discharge valve 2 at the lower end of the vessel body 1, a vessel cover 3 movably mounted on the vessel body 1, and a premixing stirring structure mounted on the vessel cover 3; preferably, further, a plurality of support legs 17 are mounted on the vessel body 1.

[0019] It should be noted that the device is placed in the paint production area by multiple supports 17 and connected to the power supply and control system. The lid 3 is used to seal the vessel body 1, and the discharge valve 2 is used to discharge the finished paint.

[0020] Specifically, the premixing structure includes a rotating shaft 4, which is movably inserted into the center of the vessel lid 3. A motor 20 is installed on the upper end of the rotating shaft 4, and a stabilizing frame 21 is installed between the motor 20 and the vessel lid 3. A premixing sleeve is installed at the lower end of the rotating shaft 4. The premixing sleeve includes a strainer 5, which is installed at the lower end of the rotating shaft 4. The strainer 5 has a teardrop-shaped structure and an outward flange 6 is provided at the upper end of the strainer 5. Multiple bent tubes 7 are inserted into the vessel lid 3 with the rotating shaft 4 as the center. One end of each bent tube 7 inside the vessel body 1 corresponds to the outward flange 6. A solenoid valve 8 is installed at the outer end of each bent tube 7 outside the vessel body 1. An electromagnetic flow meter 9 is installed at one end of the solenoid valve 8. A stabilizing structure is installed between the outward flange 6 and the vessel lid 3.

[0021] It should be noted that multiple bend pipes 7 are used to transport various liquid raw materials for paint and coating. After the solenoid valve 8 is opened, the corresponding raw material flows through the electromagnetic flow meter 9 and the bend pipe 7. When the electromagnetic flow meter 9 detects that the amount of raw material added into the reactor 1 reaches the set value, it controls the solenoid valve 8 to close and stop feeding. During the feeding process, the motor 20 works, driving the rotating shaft 4 and the premixing sleeve to rotate. The raw material flowing out of the bend pipe 7 first falls onto the outer flange 6 of the rotating strainer 5. The centrifugal force generated by the rotation guides the raw material to the strainer 5. The various raw materials are premixed in the strainer 5. Then, under the action of centrifugal force, the premixed raw material enters the bottom of the reactor 1 through the strainer 5. The strainer 5 is used to shear the premixed raw material, which improves the premixing effect and shortens the working time for the final mixing in the reactor.

[0022] Specifically, the stabilizing structure includes a turntable 10, which is fixedly mounted on the outer flange 6. The upper wall of the turntable 10 has an inclined surface 11, and multiple leakage notches 12 are provided on the inclined surface 11. A bearing 13 is installed between the turntable 10 and the vessel cover 3.

[0023] It should be noted that during the rotation of the premixing sleeve, the turntable 10 and the kettle cover 3 are connected by a bearing 13. The bearing 13 ensures the stability of the rotating shaft 4, the premixing sleeve, and the turntable 10 when they rotate. If the raw material falling on the outer flange 6 splashes onto the inclined surface 11 of the turntable 10, it will slide down under the action of gravity until it flows into the kettle body 1 from multiple leakage openings 12.

[0024] As a preferred and further option, multiple baffles 14 are installed in a circular array on the inner wall of the outer flange 6 with the rotation axis 4 as the center, to help the raw materials falling on the inner wall of the outer flange 6 rotate, so as to facilitate the premixing of multiple raw materials.

[0025] As a preferred and further option, a stirring shaft 15 is installed on the lower wall of the strainer 5, and multiple stirring rods 16 are installed on the stirring shaft 15. During the rotation of the premixing sleeve, the stirring shaft 15 and the multiple stirring rods 16 rotate to remix the premixed raw materials to ensure the mixing quality.

[0026] As a preferred and further option, multiple bolts 18 are movably inserted into the vessel body 1 and the vessel cover 3, and each bolt 18 is movably fitted with a nut 19. Through the installation of the bolts 18 and the nuts 19, the vessel body 1 and the vessel cover 3 can be disassembled and assembled with each other.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A proportioning device for paint production, comprising a kettle body (1), a discharge valve (2) being arranged at the lower end of the kettle body (1), and a kettle cover (3) being movably arranged on the kettle body (1), characterized in that, A premixing and stirring structure is installed on the lid (3); The premixing structure includes a rotating shaft (4), which is movably inserted into the center of the vessel lid (3). A motor (20) is installed at the upper end of the rotating shaft (4), and a stabilizing frame (21) is installed between the motor (20) and the vessel lid (3). A premixing sleeve is installed at the lower end of the rotating shaft (4), and the premixing sleeve includes a strainer bucket (5). The strainer bucket (5) is installed at the lower end of the rotating shaft (4), and the strainer bucket (5) has a teardrop-shaped structure. The upper end of the barrel (5) is provided with an outward flange (6). Multiple bent tubes (7) are inserted on the lid (3) with the rotating shaft (4) as the center. One end of each bent tube (7) inside the body (1) corresponds to the outward flange (6). One end of each bent tube (7) outside the body (1) is equipped with a solenoid valve (8). One end of the solenoid valve (8) is equipped with an electromagnetic flow meter (9). A stabilizing structure is installed between the outward flange (6) and the lid (3).

2. A paint production proportioning device according to claim 1, characterized in that, The stabilizing structure includes a turntable (10), which is fixedly mounted on the outer flange (6). The upper wall of the turntable (10) has an inclined surface (11), and multiple leakage notches (12) are provided on the inclined surface (11). A bearing (13) is installed between the turntable (10) and the vessel cover (3).

3. The paint / coating mixing device according to claim 1, characterized in that, Multiple baffles (14) are installed in a circular array on the inner wall of the outer flange (6) with the rotation axis (4) as the center.

4. The paint / coating mixing device according to claim 1, characterized in that, A stirring shaft (15) is installed on the lower wall of the strainer bucket (5), and multiple stirring rods (16) are installed on the stirring shaft (15).

5. The paint / coating mixing device according to claim 1, characterized in that, The vessel body (1) is equipped with multiple support legs (17).

6. The paint / coating mixing device according to claim 1, characterized in that, Multiple bolts (18) are movably inserted into the vessel body (1) and the vessel cover (3), and each bolt (18) is movably fitted with a nut (19).

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