A plastic particle mixing device

Abstract

The utility model discloses a kind of mixing device of plastic particles, including mixing kettle, the bottom side wall of mixing kettle is equipped with the discharge port of valve, the bottom wall of mixing kettle is equipped with stirring part, the stirring part includes two paddle rod rotating on the bottom of mixing kettle by rotating sealing element, and stirring mechanism is fixedly arranged on two paddle rod;The bottom wall of mixing kettle is equipped with the driving member of driving two paddle rod reverse rotation;The stirring mechanism includes the paddle of the upper portion of two paddle rod several staggered distribution, and spiral belt is arranged around two paddle rod, and is connected by several struts with paddle rod.This utility model belongs to mixing device technical field, specifically refers to a kind of mixing device of plastic particles.

Description

Technical Field

[0001] This utility model belongs to the technical field of mixing devices, specifically referring to a mixing device for plastic granules. Background Technology

[0002] Mixing plastic granules is a key step in plastic processing. Its purpose is to uniformly mix different types and colors of plastic granules or various additives (such as stabilizers and fillers) to obtain products with consistent performance and uniform appearance.

[0003] Industrial mixing tanks often employ a single-shaft stirring structure, relying on stirring blades set inside the tank to achieve material mixing. However, the single-shaft stirring structure is prone to creating mixing dead zones inside the tank, leading to localized accumulation of plastic granules or additives, uneven mixing, and affecting the quality of the final product. Utility Model Content

[0004] The technical problem to be solved by this invention is that most existing mixing tanks adopt a single-shaft stirring structure, which results in dead zones and uneven mixing.

[0005] To achieve the above functions, the technical solution adopted by this utility model is as follows: A mixing device for plastic granules includes a mixing tank, the bottom side wall of which is provided with a discharge port with a valve, the bottom wall of which is provided with a stirring component, the stirring component including two paddles rotatably mounted on the bottom of the mixing tank via a rotary seal, and a stirring mechanism fixedly mounted on the two paddles; the bottom wall of the mixing tank is provided with a driving component that drives the two paddles to rotate in opposite directions; the stirring mechanism includes a plurality of staggered blades mounted on the upper part of the two paddles, and a spiral belt arranged around the two paddles and connected to the paddles via a plurality of support columns.

[0006] Preferably, the driving component includes gears fixedly sleeved on the bottom ends of the two paddle rods, and the two gears mesh with each other; a protective box is fixedly provided on the bottom wall of the mixing tank, and the bottom end of the paddle rod passes through the top wall of the protective box through a rotary seal, and the two gears are housed in the protective box.

[0007] Preferably, the driving component further includes a drive motor and a transmission mechanism. The bottom wall of the mixing tank is provided with a support leg, and the side wall of the support leg is provided with a support plate. The drive motor is mounted on the support plate. The output end of the drive motor is connected to the bottom end of one of the paddles through the transmission mechanism.

[0008] Preferably, the transmission mechanism is a synchronous belt, and both the output end of the drive motor and the bottom end of the propeller are provided with synchronous pulleys, with the synchronous belt sleeved on the two synchronous pulleys.

[0009] Preferably, the top wall of the mixing vessel is detachably equipped with a vessel lid, and the vessel lid is provided with a feed inlet.

[0010] Preferably, a mushroom-shaped guide plate is provided on the inner top wall of the kettle lid and directly below the feed inlet. A fixing ring is connected to the side wall of the guide plate by several support rods. The fixing ring is fixed to the inner top wall of the kettle lid by bolts. The guide plate can make the added plastic granules or powder fillers evenly dispersed and avoid concentrated falling.

[0011] Preferably, the inner bottom of the discharge port is flush with the inner bottom wall of the mixing vessel.

[0012] The beneficial effects achieved by adopting the above-described structure are as follows:

[0013] 1. By setting two counter-rotating propellers, and cooperating with staggered blades and spiral belts, strong shearing, convection and diffusion effects can be generated on plastic granules and additives. The blades are mainly responsible for breaking up clumps and providing radial mixing, while the spiral belt pushes the material to circulate axially up and down. The combination of the two can reduce mixing dead angles and improve the full mixing degree of plastic granules and additives.

[0014] 2. The guide plate can initially disperse the plastic granules or powder additives added from the feed port, avoiding the material from directly accumulating in a single area, and creating favorable conditions for further uniform mixing. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0016] Figure 2 A cross-sectional view of an embodiment of this utility model. Figure 1 ;

[0017] Figure 3 This is a structural diagram of the pot lid being removed according to an embodiment of the present invention;

[0018] Figure 4 A cross-sectional view of an embodiment of this utility model. Figure 2 ;

[0019] Figure 5 Three-dimensional representation of the present utility model Figure 1 ;

[0020] Figure 6 Three-dimensional representation of the present utility model Figure 2 .

[0021] Among them, 1. mixing vessel, 2. discharge port, 3. stirring component, 4. paddle rod, 5. stirring mechanism, 6. driving component, 7. paddle blade, 8. support column, 9. spiral belt, 10. gear, 11. protective box, 12. drive motor, 13. transmission mechanism, 14. support leg, 15. support plate, 16. synchronous belt, 17. synchronous pulley, 18. vessel cover, 19. feed port, 20. guide plate, 21. support rod, 22. fixing ring. Detailed Implementation

[0022] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. 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.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0024] like Figure 1-6 As shown, this utility model proposes a mixing device for plastic granules, including a mixing tank 1. The bottom side wall of the mixing tank 1 is provided with a discharge port 2 with a valve. The inner bottom of the discharge port 2 is flush with the inner bottom wall of the mixing tank 1. The bottom wall of the mixing tank 1 is provided with a stirring element 3. The stirring element 3 includes two paddles 4 rotatably mounted on the bottom of the mixing tank 1 through a rotary seal, and a stirring mechanism 5 fixedly mounted on the two paddles 4. The bottom wall of the mixing tank 1 is provided with a driving element 6 that drives the two paddles 4 to rotate in opposite directions. The stirring mechanism 5 includes several staggered blades 7 arranged on the upper part of the two paddles 4, and a spiral belt 9 arranged around the two paddles 4 and connected to the paddles 4 through several support columns 8. The blades 7 exert a strong shearing effect on the plastic granules, breaking up any possible clumps. The spiral belt 9 can push the material to move up and down in an axial circular motion. This combination of radial shearing and axial circulation can effectively solve the problems of dead corners and uneven dispersion in the mixing of plastic granules.

[0025] like Figure 4As shown, the driving component 6 includes gears 10 fixedly sleeved on the bottom ends of the two paddle rods 4, and the two gears 10 mesh with each other; a protective box 11 is fixedly provided on the bottom wall of the mixing tank 1, and the bottom end of the paddle rod 4 passes through the top wall of the protective box 11 through a rotary seal. The two gears 10 are housed in the protective box 11, and lubricating oil can be provided in the protective box 11 to reduce wear of the gears 10 and prevent dust contamination.

[0026] like Figure 4-5 As shown, the driving component 6 also includes a driving motor 12 and a transmission mechanism 13. The bottom wall of the mixing tank 1 is provided with a support leg 14, and the side wall of the support leg 14 is provided with a support plate 15. The driving motor 12 is mounted on the support plate 15. The output end of the driving motor 12 is connected to the bottom end of one of the paddles 4 through the transmission mechanism 13. The transmission mechanism 13 is a synchronous belt 16. Both the output end of the driving motor 12 and the bottom end of the paddle 4 are provided with synchronous pulleys 17. The synchronous belt 16 is sleeved on the two synchronous pulleys 17. When the driving motor 12 is started, the two paddles 4 are rotated in opposite directions through the synchronous belt 16 and the gear 10, which drives the staggered blades 7 and the spiral belt 9 to work together.

[0027] like Figure 4 and 6 As shown, the top wall of the mixing vessel 1 is detachably equipped with a vessel cover 18, and the vessel cover 18 is provided with a feed inlet 19. The inner top wall of the vessel cover 18 and directly below the feed inlet 19 is provided with a mushroom-shaped guide plate 20. The side wall of the guide plate 20 is connected to a fixing ring 22 by several support rods 21. The fixing ring 22 is fixed to the inner top wall of the vessel cover 18 by bolts.

[0028] In practical use, the prepared materials are fed into the mixing vessel 1 through the feed port 19 on the lid 18. When the materials fall, they will first hit the mushroom-shaped guide plate 20. Its umbrella-shaped structure can disperse the falling material flow and make it fall evenly in all directions, effectively preventing the materials from accumulating in the central area of ​​the vessel.

[0029] The drive motor 12 is started, and the power of the drive motor 12 is transmitted to the bottom end of one of the paddles 4 through the synchronous belt 16 and the synchronous pulley 17. The rotation of the paddle 4 drives the other paddle 4 to rotate synchronously in the same speed but in the opposite direction through two meshing gears 10 at its bottom end. During the rotation of the two paddles 4, the blades 7 on the two paddles 4 cut into the material in an alternating manner. They exert a strong shearing effect on the plastic granules and additives, which can effectively break up clumps that may be formed due to static electricity or moisture. The spiral belt 9 around the two paddles 4 rotates with the paddles 4, generating an axial thrust and an overall circulating flow field, which can lift the material at the bottom upwards, while causing the material at the top to move towards the center and the bottom, forming a continuous up-and-down circulating flow.

[0030] After mixing is complete, open the valve at discharge port 2 to discharge the material.

[0031] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A mixing device for plastic granules, comprising a mixing tank (1), wherein the bottom side wall of the mixing tank (1) is provided with a discharge port (2) with a valve, characterized in that: The bottom wall of the mixing vessel (1) is provided with a stirring component (3), which includes two paddles (4) rotatably mounted on the bottom of the mixing vessel (1) via a rotary seal, and a stirring mechanism (5) fixedly mounted on the two paddles (4); the bottom wall of the mixing vessel (1) is provided with a driving component (6) that drives the two paddles (4) to rotate in opposite directions; the stirring mechanism (5) includes several staggered blades (7) mounted on the upper part of the two paddles (4), and a spiral belt (9) mounted around the two paddles (4) and connected to the paddles (4) via several support columns (8).

2. The mixing device for plastic granules according to claim 1, characterized in that: The driving component (6) includes gears (10) fixedly sleeved on the bottom ends of the two paddles (4), and the two gears (10) mesh with each other; a protective box (11) is fixedly provided on the bottom wall of the mixing tank (1), and the bottom end of the paddle (4) passes through the top wall of the protective box (11) through a rotary seal, and the two gears (10) are housed in the protective box (11).

3. The mixing device for plastic granules according to claim 1, characterized in that: The driving component (6) also includes a driving motor (12) and a transmission mechanism (13). The bottom wall of the mixing tank (1) is provided with a support leg (14), and the side wall of the support leg (14) is provided with a support plate (15). The driving motor (12) is mounted on the support plate (15). The output end of the driving motor (12) is connected to the bottom end of one of the paddles (4) through the transmission mechanism (13).

4. The mixing device for plastic granules according to claim 3, characterized in that: The transmission mechanism (13) is a synchronous belt (16). The output end of the drive motor (12) and the bottom end of the paddle (4) are both provided with synchronous pulleys (17). The synchronous belt (16) is sleeved on the two synchronous pulleys (17).

5. The mixing device for plastic granules according to claim 1, characterized in that: The mixing vessel (1) has a detachable lid (18) on its top wall, and the lid (18) has a feed inlet (19).

6. The mixing device for plastic granules according to claim 5, characterized in that: A mushroom-shaped guide plate (20) is provided on the inner top wall of the kettle lid (18) and directly below the feed inlet (19). A fixing ring (22) is connected to the side wall of the guide plate (20) by several support rods (21). The fixing ring (22) is fixed to the inner top wall of the kettle lid (18) by bolts.

7. The mixing device for plastic granules according to claim 1, characterized in that: The inner bottom of the discharge port (2) is flush with the inner bottom wall of the mixing tank (1).

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