A mixing device for preparing a magnetic polymer composite

Abstract

The utility model relates to high polymer material mixing processing technical field, and disclose a kind of mixing device for preparation of magnetic high polymer composite, including mixing tank, the top of mixing tank is equipped with driving assembly, shaft rod of driving assembly bottom end is sequentially installed with reverse component, high-speed stirring component and low-speed stirring component from top to bottom, by integrating low-speed stirring component and high-speed stirring component in tank body, shear force produced by frame type paddle low-speed rotation prevents material wall bonding, bottom stirring blade rotates with frame type paddle, continuously disturbs high-density magnetic powder, such as ferrite, prevents it from settling and hardening under gravity, high-speed stirring component agitates content, crushes magnetic particle agglomerate, low-speed stirring component and high-speed stirring component work cooperatively, realize the stirring effect of different speed levels, ensure the uniform mixing of material in mixing tank, improve mixing efficiency, be conducive to giving consideration to high-strength dispersion and anti-settling problem.

Description

Technical Field

[0001] This utility model relates to the field of polymer material mixing and processing technology, and more specifically to a mixing device for preparing magnetic polymer composite materials. Background Technology

[0002] Magnetic polymer composites are functional materials prepared by combining magnetic powder with a polymer matrix. Based on the different matrix materials and magnetic fillers, they are mainly divided into two categories: magnetic rubber and magnetic plastics. Magnetic plastics are further subdivided into ferrite-based and rare-earth-based magnetic plastics based on the filler. This material combines the processing performance of polymer materials with the physical properties of magnetic materials, and complex structures can be mass-produced through injection molding or compression molding processes.

[0003] Existing technology has shortcomings: The material mixing method of the mixing device used in the preparation of magnetic polymer composite materials is insufficient. If relying on high-speed stirring alone, it can break up magnetic powder agglomerates, but the strong centrifugal force generated will throw high-density magnetic powder to the wall, aggravating sedimentation and stratification. If relying on low-speed stirring alone, it can maintain overall flow and prevent sedimentation, but the shear force is insufficient and cannot deagglomerate nanoscale magnetic powder agglomerates, that is, it cannot solve the problems of high-strength dispersion and anti-settling. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a mixing device for preparing magnetic polymer composite materials, so as to solve the problems existing in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a mixing device for preparing magnetic polymer composite materials, comprising a mixing tank, a driving assembly installed at the top of the mixing tank, a shaft fixedly connected to the bottom of the driving assembly, and a reversing assembly, a high-speed stirring assembly, and a low-speed stirring assembly installed sequentially from top to bottom on the shaft, wherein the shaft, the reversing assembly, the high-speed stirring assembly, and the low-speed stirring assembly are located inside the mixing tank; The reversing assembly includes a sealing cover sealed to the top of the mixing tank, a drive gear disk rotatably connected to the upper part of the inside of the sealing cover, a first gear meshing with the internal gear of the drive gear disk, a second gear meshing with the edge of the first gear, and a driven gear disk meshing with the edge of the second gear. A vertical rod is movably connected to the shaft of the first gear and the second gear. The vertical rod is fixedly connected to the inner wall of the sealing cover through a horizontal plate. The driven gear disk is rotatably connected to the inside of the sealing cover. The shaft passes through the active gear disc, the driven gear disc, the sealing cover, and the high-speed stirring assembly in sequence and is fixedly connected to the low-speed stirring assembly. The bottom end of the driven gear disc is fixedly connected to the top end of the high-speed stirring assembly.

[0006] Furthermore, the diameter of the driving gear is larger than the diameter of the driven gear, and the diameter of the first gear is larger than the diameter of the second gear.

[0007] Furthermore, the low-speed stirring assembly includes a frame-type blade fixedly connected to the bottom of the shaft, a crossbar blade installed inside the frame-type blade to reinforce its symmetrical blades, and a stirrer fixedly connected to the bottom end of the shaft, wherein the frame-type blade is symmetrically frame-shaped and its outer contour fits the shape of the inner wall of the tank.

[0008] Furthermore, the high-speed stirring assembly includes a movable sleeve fixedly connected to the driven gear disc, a mounting base fixedly connected to the outer periphery of the movable sleeve, and stirring blades annularly mounted on the outer periphery of the mounting base, wherein the mounting bases are distributed at equal intervals vertically, and the radius of the stirring blades is within the inner contour radius of the frame-type impeller.

[0009] Furthermore, the mixing tank includes a tank body, a hollow interlayer formed inside the tank body, a water inlet valve fixedly connected to the bottom of the outer wall of the tank body, a water outlet valve fixedly connected to the outer wall of the tank body and arranged diagonally opposite to the water inlet valve, a feeding port arranged annularly at the top of the outer wall of the tank body, and a support leg arranged annularly at the bottom of the outer wall of the tank body.

[0010] Furthermore, the inlet valve and outlet valve are connected to the hollow interlayer, and the feed port is connected to the interior of the tank.

[0011] The technical effects and advantages of this utility model are as follows: 1. This utility model integrates a low-speed stirring component and a high-speed stirring component within the tank. The shearing force generated by the low-speed rotation of the frame-type paddle prevents materials from adhering to the walls. The bottom stirring blades rotate with the frame-type paddle, continuously agitating the high-density magnetic powder, such as ferrite, to prevent it from settling and caking under gravity. The high-speed stirring component agitates the contents, breaking down agglomerates of magnetic particles. The low-speed and high-speed stirring components work together to achieve stirring effects at different speed levels, ensuring uniform mixing of materials within the mixing tank, improving mixing efficiency, and facilitating both high-intensity dispersion and anti-settling.

[0012] 2. This utility model, by setting up a reversing component, relies on only a single power source and utilizes the differential transmission mechanism of the active gear plate, the first gear, the second gear, and the driven gear plate to drive the low-speed stirring component and the high-speed stirring component. This design helps to simplify the operation process, effectively reduce energy consumption, and make the equipment more efficient and energy-saving. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional schematic diagram of the present invention; Figure 3This is a schematic diagram of the structure of the low-speed stirring component of this utility model; Figure 4 This is a schematic diagram of the high-speed stirring assembly of this utility model; Figure 5 This is a schematic diagram of the structure of the inverting component of this utility model.

[0014] The attached figures are labeled as follows: 1. Mixing tank; 11. Tank body; 12. Hollow jacket; 13. Inlet valve; 14. Outlet valve; 15. Feed port; 16. Support leg; 2. Drive assembly; 21. Shaft; 3. Low-speed mixing assembly; 31. Frame-type blade; 32. Crossbar blade; 33. Agitator; 4. Reverse assembly; 41. Sealing cover; 42. Drive gear; 43. First gear; 44. Second gear; 45. Driven gear; 5. High-speed mixing assembly; 51. Movable sleeve; 52. Mounting base; 53. Mixing blade. Detailed Implementation

[0015] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The mixing device for preparing magnetic polymer composite materials involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0016] Reference Figures 1 to 5 This utility model provides a mixing device for preparing magnetic polymer composite materials, including a mixing tank 1. A driving component 2 is installed at the top of the mixing tank 1, and a shaft 21 is fixedly connected to the bottom of the driving component 2. A reversing component 4, a high-speed stirring component 5, and a low-speed stirring component 3 are installed on the shaft 21 from top to bottom, wherein the shaft 21, the reversing component 4, the high-speed stirring component 5, and the low-speed stirring component 3 are located inside the mixing tank 1. The reversing assembly 4 includes a sealing cover 41 sealed to the top of the inside of the mixing tank 1, a drive gear 42 rotatably connected to the upper part of the inside of the sealing cover 41, a first gear 43 meshing with the internal gear of the drive gear 42, a second gear 44 meshing with the edge of the first gear 43, and a driven gear 45 meshing with the edge of the second gear 44. A vertical rod is movably connected at the axis of the first gear 43 and the second gear 44. The vertical rod is fixedly connected to the inner wall of the sealing cover 41 through a horizontal plate. The driven gear 45 is rotatably connected to the inside of the sealing cover 41. The shaft 21 passes through the driving gear disk 42, the driven gear disk 45, the sealing cover 41 and the high-speed stirring assembly 5 in sequence and is fixedly connected to the low-speed stirring assembly 3. The bottom end of the driven gear disk 45 is fixedly connected to the top end of the high-speed stirring assembly 5.

[0017] Among them, the diameter of the driving gear 42 is larger than the diameter of the driven gear 45, and the diameter of the first gear 43 is larger than the diameter of the second gear 44.

[0018] The low-speed stirring assembly 3 includes a frame-type blade 31 fixedly connected to the bottom of the shaft 21, a crossbar blade 32 installed inside the frame-type blade 31 to reinforce its symmetrical blades, and a stirrer 33 fixedly connected to the bottom of the shaft 21. The frame-type blade 31 is symmetrically frame-shaped, and its outer contour fits the shape of the inner wall of the tank 11.

[0019] The high-speed stirring assembly 5 includes a movable sleeve 51 fixedly connected to the driven toothed disc 45, a mounting base 52 fixedly connected to the outer periphery of the movable sleeve 51, and stirring blades 53 annularly mounted on the outer periphery of the mounting base 52. The mounting bases 52 are distributed at equal intervals, and the radius of the stirring blades 53 is within the inner contour radius of the frame-type blades 31.

[0020] The mixing tank 1 includes a tank body 11, a hollow interlayer 12 formed inside the tank body 11, a water inlet valve 13 fixedly connected to the bottom of the outer wall of the tank body 11, a water outlet valve 14 fixedly connected to the outer wall of the tank body 11 and arranged diagonally opposite to the water inlet valve 13, a feeding port 15 arranged annularly at the top of the outer wall of the tank body 11, and a support leg 16 arranged annularly at the bottom of the outer wall of the tank body 11. The water inlet valve 13 and the water outlet valve 14 are connected to the hollow interlayer 12, and the feeding port 15 is connected to the interior of the tank body 11.

[0021] The working principle of this utility model: The drive assembly 2 drives the shaft 21 to rotate, thereby driving the frame-type paddle 31 and the stirring blade 33 at its bottom to rotate at a low speed, thereby promoting the circulation of materials and achieving the purpose of eliminating local hot or cold spots and ensuring a consistent reaction temperature. The outer contour of the frame-type paddle 31 matches the shape of the inner wall of the tank 11. The shearing force generated by the low-speed rotation of the frame-type paddle 31 prevents materials from sticking to the wall and affecting the heat conduction effect of the inner wall of the tank 11. In addition, the bottom of the tank 11 is conical, which guides the materials to gather towards the center and avoids particles from being stuck in the corners. The bottom stirring blade 33 rotates with the frame-type paddle, continuously agitating the high-density magnetic powder, such as ferrite, to prevent it from settling and caking under gravity.

[0022] The rotation of shaft 21 drives the rotation of the driving gear 42 fixedly connected to it, which in turn drives the rotation of the first gear 43. Through the meshing transmission of the first gear 43 and the second gear 44, the driven gear 45 is driven to rotate, which in turn drives the rotation of the movable sleeve 51 fixedly connected to the driven gear 45. Since the diameter of the driving gear 42 is larger than the diameter of the driven gear 45, and the diameter of the first gear 43 is larger than the diameter of the second gear 44, the rotational speed of the driven gear 45 is greater than the rotational speed of the driving gear 42, that is, the rotational speed of the movable sleeve 51 is greater than the rotational speed of shaft 21.

[0023] The movable sleeve 51 is uniformly and fixedly connected to the mounting base 52, and the stirring blade 53 is fixedly installed through the mounting base 52. The rotation speed of the movable sleeve 51 is greater than that of the shaft 21, so that the high-speed stirring component 5 and the low-speed stirring component 3 form a speed difference. The high-speed stirring component 5 located in the middle of the tank 11 has a higher rotation speed, which agitates the contents and crushes the magnetic particle agglomerates. The frame-type blade 31 located outside the high-speed stirring component 5 has a lower rotation speed, which pushes the contents to form vertical exchange and eliminates mixing dead zones. The stirring blade 33 located at the bottom of the tank 11 prevents sedimentation and accumulation.

[0024] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mixing device for preparing a magnetic polymer composite, comprising a mixing tank (1), characterized in that, The top of the mixing tank (1) is equipped with a drive assembly (2), and the bottom of the drive assembly (2) is fixedly connected with a shaft (21). The shaft (21) is equipped with a reversing assembly (4), a high-speed stirring assembly (5) and a low-speed stirring assembly (3) from top to bottom. The shaft (21), the reversing assembly (4), the high-speed stirring assembly (5) and the low-speed stirring assembly (3) are located inside the mixing tank (1). The reversing assembly (4) includes a sealing shell (41) sealed to the top of the inside of the mixing tank (1), an active gear (42) rotatably connected to the upper part of the inside of the sealing shell (41), a first gear (43) meshing with the internal gear of the active gear (42), a second gear (44) meshing with the edge of the first gear (43), and a driven gear (45) meshing with the edge of the second gear (44). A vertical rod is movably connected to the axis of the first gear (43) and the second gear (44). The vertical rod is fixedly connected to the inner wall of the sealing shell (41) through a horizontal plate. The driven gear (45) is rotatably connected to the inside of the sealing shell (41). The shaft (21) passes through the active gear disc (42), the driven gear disc (45), the sealing cover (41), and the high-speed stirring assembly (5) in sequence and is fixedly connected to the low-speed stirring assembly (3). The bottom end of the driven gear disc (45) is fixedly connected to the top end of the high-speed stirring assembly (5).

2. The mixing device for preparing magnetic polymer composite materials according to claim 1, characterized in that: The diameter of the driving gear (42) is greater than the diameter of the driven gear (45), and the diameter of the first gear (43) is greater than the diameter of the second gear (44).

3. The mixing device for preparing magnetic polymer composite materials according to claim 1, characterized in that: The low-speed stirring assembly (3) includes a frame blade (31) fixedly connected to the bottom of the shaft (21), a crossbar blade (32) installed inside the frame blade (31) to reinforce its symmetrical blades, and a stirrer (33) fixedly connected to the bottom of the shaft (21). The frame blade (31) is symmetrically framed, and its outer contour fits the shape of the inner wall of the tank (11).

4. The mixing device for preparing magnetic polymer composite materials according to claim 2, characterized in that: The high-speed stirring assembly (5) includes a movable sleeve (51) fixedly connected to the driven toothed disc (45), a mounting seat (52) fixedly connected to the outer periphery of the movable sleeve (51), and stirring blades (53) annularly mounted on the outer periphery of the mounting seat (52). The mounting seat (52) is distributed at equal intervals, and the radius of the stirring blades (53) is within the inner contour radius of the frame-type blade (31).

5. The mixing device for preparing magnetic polymer composite materials according to claim 2, characterized in that: The mixing tank (1) includes a tank body (11), a hollow interlayer (12) inside the tank body (11), a water inlet valve (13) fixedly connected to the bottom of the outer wall of the tank body (11), a water outlet valve (14) fixedly connected to the outer wall of the tank body (11) and arranged diagonally opposite to the water inlet valve (13), a feeding port (15) arranged in a ring at the top of the outer wall of the tank body (11), and a support leg (16) arranged in a ring at the bottom of the outer wall of the tank body (11).

6. The mixing apparatus for preparing magnetic polymer composite materials according to claim 5, characterized in that: The inlet valve (13) and outlet valve (14) are connected to the hollow interlayer (12), and the feed port (15) is connected to the interior of the tank (11).

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