A paint mixing device

Abstract

This application relates to a paint mixing device, belonging to the technical field of paint processing equipment. It includes a mixing container with a mixing shaft rotatably mounted inside. A sleeve b is fixedly connected to the bottom of the mixing shaft, and a secondary rod is slidably connected inside the sleeve b. Flat keys are fixedly connected to both sides of the secondary rod. A keyway is formed on the inner wall of the sleeve b to cooperate with the flat keys. A spiral auger is fixedly connected to the outer periphery of the secondary rod, and a discharge port is provided at the bottom of the mixing container. The beneficial effects of this application are that, through the cooperation of the flat keys and keyways, it ensures that the rotating shaft synchronously drives the spiral auger to rotate, thereby accelerating the discharge speed of the paint from the discharge port. Furthermore, when the cover is opened for discharge, the weight of the secondary rod and the spiral auger generates a downward pushing force on the viscous paint, reducing the limitations of traditional gravity-based discharge and further accelerating the discharge speed, significantly improving the overall production progress of paint processing.

Description

Technical Field

[0001] This application relates to the field of coating processing equipment technology, and in particular to a coating mixing device. Background Technology

[0002] Paint, also known as varnish, is a commonly used decorative material. It is applied to the surface of an object to be protected or decorated and forms a continuous film that adheres firmly to the object. It is usually a viscous liquid made of resin, oil, emulsion as the main components, with or without pigments, fillers, and corresponding additives, and is prepared with organic solvents or water. During the processing of paint, mixing tanks or reaction vessels are used to uniformly stir and mix the paint.

[0003] A search revealed a Chinese patent (authorization announcement number CN214764992U) disclosing a paint mixing device, comprising a mixing tank, an upper cover with a feed inlet on the upper cover, a discharge outlet at the bottom of the mixing tank, and a vertically movable push rod inside the mixing tank. One end of the push rod passes through the upper cover and is connected to a drive cylinder, which is fixedly installed at the center of the upper cover. A vertical stirring mechanism is fixedly installed on the push rod inside the mixing tank. This patented technology can drive the vertical stirring mechanism to perform reciprocating motion in the vertical direction through the drive cylinder, enabling the paint to flow vertically within the mixing tank. Furthermore, the vertical stirring mechanism employs a mirror-structured spherical arc design to push the paint away from the vertical stirring mechanism.

[0004] However, the above-mentioned device still has some drawbacks in actual use. The most obvious ones are: on the one hand, the discharge process after mixing relies solely on gravity to discharge the coating. Because the coating itself has a high viscosity, the discharge speed is slow, which seriously affects the discharge efficiency; on the other hand, the high viscosity of the coating also makes it easy for a large amount of residual material to adhere to the inner wall of the mixing device. This not only wastes the coating raw materials, but also increases the difficulty of subsequent cleaning. Long-term accumulation may even affect the uniformity of subsequent coating mixing, causing many inconveniences to coating processing and production. Utility Model Content

[0005] In view of the above-mentioned problems existing in the prior art, the main objective of this application is to provide a coating mixing device.

[0006] The technical solution of this application is as follows: A coating mixing device includes a mixing container, a mixing shaft rotatably mounted inside the mixing container, a sleeve b fixedly connected to the bottom of the mixing shaft, a secondary rod slidably connected inside the sleeve b, flat keys fixedly connected to both sides of the secondary rod, a keyway for cooperating with the flat keys being opened on the inner wall of the sleeve b, a spiral auger fixedly connected to the outer periphery of the secondary rod, a discharge port being provided at the bottom of the mixing container, a bracket fixedly connected to one side of the discharge port, a cover plate rotatably connected inside the bracket, the cover plate abutting against the bottom of the discharge port, and a wall scraping assembly being provided inside the mixing container.

[0007] By adopting the above technical solution, the use of flat keys and keyways can ensure that the stirring shaft rotates synchronously with the spiral auger, thereby accelerating the discharge speed of the coating from the outlet.

[0008] In a preferred embodiment, the wall scraping assembly includes two sleeves fixedly connected to the outer periphery of the stirring shaft. Sleeves a are fixedly connected at equal intervals along the circumferential direction on the outer side of the sleeves. A telescopic rod is slidably connected inside the sleeve a. A spring is fixedly connected between the telescopic rod and the inner wall of the sleeve a. A scraper is fixedly connected between the two telescopic rods. The scraper is in contact with the inner wall of the stirring container.

[0009] By adopting the above technical solution, when the stirring shaft rotates, the scraper will rotate synchronously along the inner wall of the stirring container to completely scrape off the residual material adhering to the inner wall, which not only avoids the waste of paint raw materials, but also greatly reduces the difficulty of cleaning the stirring container in the future.

[0010] In a preferred embodiment, stirring blades are fixedly connected to the outer periphery of the stirring shaft and located between the two sleeves, and a feed inlet is fixedly connected to the top of the stirring container.

[0011] By adopting the above technical solution and setting the stirring blades, the mixing effect of various materials can be achieved.

[0012] In a preferred embodiment, the bottom of the stirring container is fixedly connected to two fixing frames, and each fixing frame is rotatably mounted with an electric push rod at its bottom end. The piston rod of the electric push rod is rotatably connected to one end of the cover plate.

[0013] By adopting the above technical solution, the opening and closing of the cover plate can be conveniently controlled by the extension and retraction of the piston rod, thereby achieving flexible control of the material discharge process.

[0014] In a preferred embodiment, a sealing ring is fixedly connected to the top of the cover plate to fit the discharge port, and the sealing ring fits the inner wall of the discharge port.

[0015] By adopting the above technical solution, it is ensured that the coating will not leak from the outlet during the mixing process.

[0016] In a preferred embodiment, a drive motor is fixedly installed at the top center of the stirring container, and the output shaft of the drive motor extends into the interior of the stirring container and is fixedly connected to the stirring shaft.

[0017] By adopting the above technical solution, the rotation of the output shaft of the drive motor is used to drive the stirring shaft to rotate.

[0018] In a preferred embodiment, a controller is fixedly installed on the outside of the stirring container, and the drive motor and the electric push rod are both electrically connected to the controller.

[0019] By adopting the above technical solution, the controller can control the drive motor and electric push rod to start and stop.

[0020] Compared with the prior art, the advantages and positive effects of this application are as follows: 1. In this application, by using the combination of flat key and keyway, it can be ensured that the stirring shaft rotates synchronously to drive the spiral auger to rotate, so as to speed up the discharge speed of the coating from the outlet. When the cover is opened for discharge, the weight of the auxiliary rod and the spiral auger can generate a downward pushing force on the viscous coating, thereby reducing the limitations of traditional gravity-based discharge and further speeding up the discharge speed, significantly improving the overall production progress of coating processing.

[0021] 2. In this application, the spring setting can always push the scraper to fit tightly against the inner wall of the mixing container. When the mixing shaft rotates, the scraper will rotate synchronously along the inner wall of the mixing container to completely scrape off the residual material adhering to the inner wall. This not only avoids the waste of paint raw materials, but also greatly reduces the difficulty of cleaning the mixing container later. At the same time, it prevents the long-term accumulation of residual material from affecting the uniformity of subsequent paint mixing. Attached Figure Description

[0022] Figure 1 This application provides an overall perspective view of a paint mixing device; Figure 2 This application provides an internal cross-sectional view of a paint mixing device; Figure 3 This application provides a partial schematic diagram of a paint mixing device; Figure 4 This application provides a schematic diagram of a scraping component for a paint mixing device; Figure 5 This application provides a cross-sectional view of the sleeve b of a paint mixing device.

[0023] Legend: 1. Mixing container; 2. Drive motor; 3. Spring; 4. Mixing shaft; 5. Mixing blade; 6. Sleeve; 7. Sleeve a; 8. Telescopic rod; 9. Sleeve b; 10. Secondary rod; 11. Spiral auger; 12. Discharge port; 13. Scraper; 14. Support; 15. Fixing frame; 16. Electric push rod; 17. Sealing ring; 18. Cover plate; 19. Keyway; 20. Flat key. Detailed Implementation

[0024] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0025] Reference Figure 1-5 A paint mixing device includes a mixing container 1, a mixing shaft 4 rotatably mounted inside the mixing container 1, a sleeve b9 fixedly connected to the bottom of the mixing shaft 4, a secondary rod 10 slidably connected inside the sleeve b9, flat keys 20 fixedly connected to both sides of the secondary rod 10, a keyway 19 for cooperating with the flat keys 20 being formed on the inner wall of the sleeve b9, a spiral auger 11 fixedly connected to the outer periphery of the secondary rod 10, a discharge port 12 at the bottom of the mixing container 1, a bracket 14 fixedly connected to one side of the discharge port 12, and a cover plate 18 rotatably connected inside the bracket 14. The cover plate 18 abuts against the bottom of the discharge port 12. The interior of the mixing container 1 is equipped with a wall scraping assembly. Through the cooperation of the flat key 20 and the keyway 19, it can be ensured that the stirring shaft 4 rotates synchronously to drive the spiral auger 11 to rotate, so as to speed up the discharge speed of the coating from the discharge port 12. When the cover plate 18 is opened for discharge, the weight of the auxiliary rod 10 and the spiral auger 11 can generate a downward pushing force on the viscous coating, so as to reduce the limitation of traditional discharge relying solely on gravity, further speed up the discharge speed, and significantly improve the overall production progress of coating processing.

[0026] Specifically, the scraping assembly includes two sleeves 6 fixedly connected to the outer periphery of the stirring shaft 4. Sleeves a7 are fixedly connected circumferentially at equal intervals to the outer side of the sleeves 6. Telescopic rods 8 are slidably connected inside sleeves a7. A spring 3 is fixedly connected between the telescopic rods 8 and the inner wall of sleeves a7. A scraper blade 13 is fixedly connected between the two telescopic rods 8. The spring 3 ensures that the scraper blade 13 is always tightly pressed against the inner wall of the mixing container 1. When the stirring shaft 4 rotates, the scraper blade 13 rotates synchronously along the inner wall of the mixing container 1, thoroughly scraping away any remaining material adhering to the inner wall. This avoids waste of paint raw materials, significantly reduces the difficulty of subsequent cleaning of the mixing container 1, and prevents the remaining material from accumulating for extended periods. Accumulation affects the uniformity of subsequent coating mixing. The scraper blades 13 are all in contact with the inner wall of the mixing container 1. The stirring blades 5 are fixedly connected to the outer periphery of the stirring shaft 4 and located between the two sleeves 6. Through the setting of the stirring blades 5, the mixing effect of various materials can be achieved. The top of the mixing container 1 is fixedly connected to the feed port, which makes it convenient for the staff to put the coating raw materials into the mixing container 1. The bottom of the mixing container 1 is fixedly connected to two fixed frames 15. The bottom end of each fixed frame 15 is rotatably installed with an electric push rod 16. The opening and closing of the cover plate 18 can be conveniently controlled by the extension and retraction of the piston rod, so as to realize flexible control of the discharge process. The piston rod of the electric push rod 16 is rotatably connected to one end of the cover plate 18.

[0027] Specifically, a sealing ring 17 is fixedly connected to the top of the cover plate 18 and fits against the discharge port 12. The sealing ring 17 fits against the inner wall of the discharge port 12 to ensure that the coating does not leak from the discharge port 12 during the mixing process. A drive motor 2 is fixedly installed at the top center of the mixing container 1. The output shaft of the drive motor 2 extends into the interior of the mixing container 1 and is fixedly connected to the mixing shaft 4. A controller is fixedly installed on the outside of the mixing container 1. The drive motor 2 and the electric push rod 16 are both electrically connected to the controller. The controller can control the drive motor 2 and the electric push rod 16 to start and stop.

[0028] Working principle: First, the operator can feed the raw materials into the mixing container 1 through the feed inlet. Then, the controller starts the drive motor 2, and the rotation of the output shaft of the drive motor 2 drives the mixing shaft 4 to rotate. The mixing blades 5 then achieve the mixing effect of various materials. Subsequently, the spring 3 ensures that the scraper 13 is always in close contact with the inner wall of the mixing container 1. When the mixing shaft 4 rotates, the scraper 13 rotates synchronously along the inner wall of the mixing container 1, thoroughly scraping away any remaining material adhering to the inner wall, thus preventing the coating from spilling. The waste of material is greatly reduced, and the difficulty of cleaning the mixing container 1 is significantly reduced. Then, during the discharge process, the extension and retraction of the piston rod of the electric push rod 16 can be controlled to open the cover plate 18. With the cooperation of the flat key 20 and the keyway 19, it can be ensured that the rotating shaft 4 drives the spiral auger 11 to rotate synchronously, thereby realizing the rapid delivery of the coating. Under the influence of gravity of the auxiliary rod 10 and the spiral auger 11, the coating falls, which can generate a downward pushing force on the viscous coating, thereby reducing the limitations of traditional gravity-based discharge and further accelerating the discharge speed.

Claims

1. A paint mixing device, comprising a mixing container (1), characterized in that: The stirring container (1) is rotatably mounted with a stirring shaft (4). A sleeve b (9) is fixedly connected to the bottom of the stirring shaft (4). A secondary rod (10) is slidably connected inside the sleeve b (9). A flat key (20) is fixedly connected to both sides of the secondary rod (10). A keyway (19) is provided on the inner wall of the sleeve b (9) to cooperate with the flat key (20). A spiral auger (11) is fixedly connected to the outer periphery of the secondary rod (10). The bottom of the stirring container (1) is provided with a discharge port (12). A bracket (14) is fixedly connected to one side of the discharge port (12). A cover plate (18) is rotatably connected inside the bracket (14). The cover plate (18) abuts against the bottom of the discharge port (12). The stirring container (1) is provided with a wall scraping assembly inside.

2. The coating mixing device according to claim 1, characterized in that: The wall scraping assembly includes two sleeves (6) fixedly connected to the outer periphery of the stirring shaft (4). Sleeves a (7) are fixedly connected to the outer side of the sleeves (6) at equal intervals along the circumference. Telescopic rods (8) are slidably connected inside the sleeves a (7). Springs (3) are fixedly connected between the telescopic rods (8) and the inner wall of the sleeves a (7). Scraper blades (13) are fixedly connected between the two telescopic rods (8). The scraper blades (13) are all in contact with the inner wall of the stirring container (1).

3. The coating mixing device according to claim 2, characterized in that: The stirring shaft (4) is fixedly connected to the stirring blades (5) on its outer periphery and between the two sleeves (6), and the top of the stirring container (1) is fixedly connected to the feed inlet.

4. The paint mixing device according to claim 1, characterized in that: The bottom of the stirring container (1) is fixedly connected to two fixed frames (15), and each fixed frame (15) is rotatably mounted with an electric push rod (16) at its bottom end. The piston rod of the electric push rod (16) is rotatably connected to one end of the cover plate (18).

5. The paint mixing device according to claim 1, characterized in that: The top of the cover plate (18) is fixedly connected to a sealing ring (17) that fits against the discharge port (12), and the sealing ring (17) fits against the inner wall of the discharge port (12).

6. The paint mixing device according to claim 4, characterized in that: A drive motor (2) is fixedly installed at the top center of the stirring container (1). The output shaft of the drive motor (2) extends into the interior of the stirring container (1) and is fixedly connected to the stirring shaft (4).

7. A coating mixing device according to claim 6, characterized in that: A controller is fixedly installed on the outside of the stirring container (1), and the drive motor (2) and the electric push rod (16) are both electrically connected to the controller.

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