A stirring device and preparation method for preparing a backlight display fluorescent material

Abstract

The present application discloses a stirring device and a preparation method for preparing a backlight display fluorescent material. The power shaft drives the cross frame to rotate synchronously, so that the fitting wheels on the cross frame fit the cavity wall of the preparation cavity. When the fitting wheel on one side of the cross frame moves from the concave surface to the convex surface, the fitting wheel on the other side of the cross frame will move from the convex surface to the concave surface, causing the contacting convex surface to guide the cross frame to move towards the concave surface on the other side, so that the cross frame drives the connected stirring plate to move synchronously. Therefore, when the stirring plate rotates circumferentially to stir the surrounding raw materials, it also performs a reciprocating linear motion to change its position relative to the center of the power shaft, so that the rotation path of the stirring plate is wavy in the circumferential direction, performing contact stirring on a larger range of raw materials and improving the stirring effect.

Description

Technical Field

[0001] This application relates to the technical field of fluorescent material preparation, and particularly relates to a stirring device and a preparation method for preparing backlight display fluorescent materials. Background Art

[0002] When preparing light source display fluorescent materials, main steps such as raw material preparation, mixing, synthesis reaction, crushing, screening, surface treatment, coating, etc. are required. Among them, the mixing step refers to stirring and reacting raw materials such as matrix materials, activators, and cosolvents to fully mix the materials and carry out relevant chemical reactions.

[0003] The traditional mixing method is to perform centrifugal rapid stirring through stirring blades. However, in this process, due to the single movement mode of the stirring blades, the flow direction of the materials subjected to forced stirring is also relatively single. At this time, only by extending the stirring time and adding more stirring blades can effective raw material mixing be obtained and the material reaction be promoted, which is inefficient in the industrial processing process. Summary of the Invention

[0004] This application proposes a stirring device and a preparation method for preparing backlight display fluorescent materials, which have the advantages that the stirring plate circumferentially stirs the raw materials, the raw materials pass through the inclined holes Ⅰ and the inclined holes Ⅱ for segmentation and transposition, the cavity wall of the preparation cavity drives the stirring plate to move linearly, the deflecting magnet provides power to the approaching force magnet to block the inclined hole Ⅰ or the inclined hole Ⅱ, and after the inclined hole Ⅰ or the inclined hole Ⅱ is blocked, the force on both sides of the stirring plate is changed, and the stirring plate rotates to stir the surrounding raw materials, so as to solve the problems of single stirring method and low stirring efficiency of the existing stirring device.

[0005] To achieve the above object, this application adopts the following technical solution: A stirring device for preparing backlight display fluorescent materials, including a stirring box provided with a preparation cavity, a top cover is arranged at the top of the stirring box, a power shaft is arranged in the preparation cavity, and two groups of vertical stirring devices are arranged on the power shaft for stirring the raw materials over a large area; the stirring device includes a cross frame symmetrically and movably penetrating the power shaft up and down, uniformly distributed stirring plates arranged between the two cross frames, and fitting wheels arranged at both ends of the cross frame. The stirring plates are provided with vertically and uniformly distributed inclined holes Ⅰ and vertically and uniformly distributed inclined holes Ⅱ for segmenting and transposing the raw materials along the way; the cavity wall of the preparation cavity is regularly wavy in the circumferential direction, the convex part of the wave shape towards the power shaft is the outer convex surface, and the convex part of the wave shape towards the outside of the stirring box is the inner concave surface, which is used to change the position of the stirring plate in the linear direction. Taking the power shaft as the center, one side of the outer convex surface is opposite to the inner concave surface on the other side to ensure that the cross frame can perform linear reciprocating motion.

[0006] Preferably, the cross frames on the two groups of the stirring devices are vertically staggered to avoid interference between adjacent cross frames during linear motion.

[0007] Preferably, centered on the power shaft, the four stirring plates are symmetric in pairs to increase the stirring area.

[0008] Preferably, the inclined hole I is inclined downward in the vertical direction, and the inclined direction of the inclined hole II is opposite to that of the inclined hole I to enhance the complexity of the movement of the raw materials.

[0009] Preferably, symmetric rotating shafts sleeved with the cross frames are arranged at the centers of the top and bottom ends of the stirring plates to provide a rotation base point for the self-rotation of the stirring plates, and torsion springs are arranged on the outer sides of the rotating shafts to provide power for the reverse rotation of the stirring plates.

[0010] Preferably, a sliding cavity is formed in the stirring plate, a sliding plate is arranged in the sliding cavity, the sliding plate includes a plugging plate and force-bearing magnets symmetrically arranged on both long sides of the plugging plate to receive power to drive the plugging plate to move, and the width value of the sliding plate is smaller than the spacing value between the inclined hole I and the inclined hole II on the same horizontal plane to separately block the inclined hole I or the inclined hole II.

[0011] Preferably, uniformly distributed insertion holes are formed in the outer side wall of the stirring box, mounting blocks are arranged in the insertion holes, uniformly distributed deflecting magnets are arranged at one end of the mounting blocks close to the preparation cavity, and one end of the deflecting magnets far from the mounting blocks is close to the cavity wall of the preparation cavity to provide power for the approaching force-bearing magnets.

[0012] Preferably, the deflecting magnet close to the convex surface repels the approaching force-bearing magnet, and the deflecting magnet close to the concave surface attracts the approaching force-bearing magnet.

[0013] Preferably, the force-bearing magnets close to each other on the plugging plates in adjacent stirring plates repel each other to receive external power to drive the plugging plates to move.

[0014] A preparation method of a stirring device for preparing a backlight display fluorescent material includes the following preparation steps;

[0015] S1. Open the top cover, put the raw materials into the preparation cavity, and then change the top cover;

[0016] S2. The power shaft rotates to drive the cross frame and the stirring plates to rotate synchronously. The stirring plates circumferentially stir the contacted raw materials and extrude the raw materials to pass through the inclined hole I and the inclined hole II;

[0017] S3. The fitting wheel rolls on the cavity wall of the preparation cavity, and the convex surface extrudes the fitting wheel to drive the cross frame and the stirring plates to perform linear motion;

[0018] S4. The force magnet inside the stirring plate moves linearly under the influence of the direction-changing magnet and the adjacent force magnets, intermittently blocking the inclined holes I and II.

[0019] S5. When the inclined holes I and II are intermittently blocked, the force-bearing area on the blocked side of the stirring plate increases, and the stirring plate rotates self-driven under the impact of the raw materials.

[0020] S6. The reciprocally rotating stirring plate agitates the surrounding raw materials and changes the positions of the penetrating inclined holes I and II, guiding the raw materials to pass through the inclined holes I and II to reach different positions.

[0021] A stirring device and a preparation method for preparing a backlight display fluorescent material provided by the present application drive the cross frame to rotate synchronously through a power shaft, so that the fitting wheels on the cross frame fit the cavity wall of the preparation cavity. When the fitting wheel on one side of the cross frame moves from the concave surface to the convex surface, the fitting wheel on the other side of the cross frame will move from the convex surface to the concave surface, causing the contacted convex surface to guide the cross frame to move towards the concave surface on the other side, so that the cross frame drives the connected stirring plate to move synchronously. Therefore, when the stirring plate rotates circumferentially to agitate the surrounding raw materials, it also makes a reciprocating linear motion to change its position relative to the center of the power shaft, so that the rotation path of the stirring plate is wavy in the circumferential direction, performing contact stirring on a larger range of raw materials and improving the stirring effect.

[0022] At the same time, through two groups of inclined holes (inclined hole I and inclined hole II) with opposite inclined directions opened on both sides of the stirring plate, when the stirring plate moves, it can guide the raw materials in the advancing direction to pass through the two groups of inclined holes, dividing and transposing the passed raw materials, so that the stirring plate arriving later stirs the divided and transposed raw materials and divides and transposes them again, further improving the stirring and mixing effect.

[0023] Meanwhile, when the stirring plate near the wall of the preparation chamber passes by the deflection magnet at the convex surface, the internal force-receiving magnet close to it will be affected by the repulsive force and move towards the direction of the power shaft, driving the sealing plate to block the inclined hole on the side of the stirring plate close to the power shaft. And through the force-receiving magnet on the other side, it affects the force-receiving magnet inside the stirring plate close to the power shaft, causing the force-receiving magnet inside the stirring plate close to the power shaft to drive the sealing plate to move and block the inclined hole on the side close to the power shaft. When the stirring plate near the wall of the preparation chamber passes by the deflection magnet at the concave surface, the internal force-receiving magnet close to it will be affected by the suction force and move towards the direction of the concave surface, driving the sealing plate to block the inclined hole on the side of the stirring plate close to the concave surface. At this time, the repulsive force of the force-receiving magnet on the other side on the force-receiving magnet inside the stirring plate close to the power shaft weakens. So, under the influence of the force-receiving magnet inside the stirring plate on the other side of the power shaft, the force-receiving magnet inside the stirring plate close to the power shaft drives the sealing plate to move and block the inclined hole on the side away from the power shaft. At this time, after the inclined hole is blocked, the resistance of the blocked part to the raw materials increases during the movement process, causing the stirring plate to swing towards the direction of the increased resistance with the rotation axis as the base point, and driving the torsion spring to store energy. When the sealing plate moves and changes positions, the torsion spring will drive the stirring plate to swing back to its original position. In this way, the stirring plate not only rotates circumferentially and moves linearly in a reciprocating manner, but also performs a self-rotating and swinging action, making the movement trajectory of the stirring plate more complex and the mixing effect of the surrounding raw materials more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings forming a part of the specification depict the embodiments disclosed in the present application and, together with the specification, are used to explain the principles disclosed in the present application.

[0025] Referring to the drawings, the present disclosure can be more clearly understood from the following detailed description, wherein:

[0026] Figure 1 is a schematic three-dimensional structure diagram of the present invention;

[0027] Figure 2 is a schematic internal structure diagram of the present invention;

[0028] Figure 3 is a schematic structure diagram of the stirring tank of the present invention;

[0029] Figure 4 is a schematic diagram of the internal structure distribution of the present invention;

[0030] Figure 5 is the present invention Figure 4 partial enlarged schematic diagram of the structure at A in;

[0031] Figure 6 is a schematic structure diagram of the stirring device of the present invention;

[0032] Figure 7 is a schematic structure diagram of the stirring plate of the present invention;

[0033] Figure 8 It is a schematic diagram of the cross frame structure of the present invention.

[0034] Among them: 1. mixing box; 2. preparation chamber; 21. inner concave surface; 22. outer convex surface; 3. plug-in hole; 4. mounting block; 41. changing magnet; 5. power shaft; 6. cross frame; 7. fitting wheel; 8. mixing plate; 81. inclined hole I; 82. inclined hole II; 9. sliding chamber; 10. sealing plate; 11. force magnet; 12. rotating shaft; 13. torsion spring; 14. top cover. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application. Embodiment 1

[0036] See also Figures 1 to 3 A stirring device and method for preparing a backlight display fluorescent material, comprising a stirring box 1, a top cover 14 is fixedly connected to the top of the stirring box 1, a preparation chamber 2 is opened in the stirring box 1, the raw materials to be stirred are put into the preparation chamber 2, and the top cover 14 is covered to provide a sealed space during stirring processing, a power shaft 5 is movably sleeved in the preparation chamber 2, the top end of the power shaft 5 movably passes through the center of the top cover 14, and is connected to the existing transmission device, such as a stepping motor, so that the power shaft 5 can be continuously rotated under the existing transmission device to provide sufficient power for stirring.

[0037] See also Figures 2 to 4 , Figures 6 to 7, there are two sets of perpendicular stirring devices arranged on the power shaft 5. The stirring device includes two symmetrical horizontal frames 6 above and below and four evenly distributed stirring plates 8 arranged between the two symmetrical horizontal frames 6. The center of the horizontal frame 6 is movably sleeved in the power shaft 5, so that when the power shaft 5 rotates, it can drive the horizontal frame 6 to rotate synchronously, thereby driving the entire stirring device to rotate synchronously. The raw materials in the preparation chamber 2 are circumferentially stirred by the stirring plates 8. At the same time, the horizontal frame 6 can perform linear reciprocating motion under the restriction of the power shaft 5. The horizontal frames 6 on the two stirring devices are distributed up and down in a staggered manner, so that when the two horizontal frames 6 perform linear reciprocating motion, they will not contact each other, nor will the stirring plates 8 on the two horizontal frames 6 contact each other. Centered on the power shaft 5, the four stirring plates 8 are symmetrically arranged in pairs, so that the four stirring plates 8 on the same stirring device are evenly distributed. When the stirring device rotates one circle, the four stirring plates 8 can affect a larger stirring range. On the side of the stirring plate 8 close to the wall of the preparation chamber 2, there are vertically evenly distributed inclined holes I 81, and on the side of the stirring plate 8 close to the power shaft 5, there are vertically evenly distributed inclined holes II 82. When the stirring plate 8 rotates circumferentially, while the stirring plate 8 stirs the contacted raw materials, it will also squeeze the raw materials in the forward direction to pass through the inclined holes I 81 and the inclined holes II 82, so that the raw materials are divided by the inclined holes I 81 and the inclined holes II 82. At this time, the circumferentially stirred raw materials change positions under the stirring, and the divided raw materials follow the stirring plate 8 to move to the rear of the forward direction of the stirring plate 8. After being divided and transposed with the stirred raw materials, they are mixed with the raw materials arriving from the rear, thereby improving the effect of mixing and stirring. The inclined holes I 81 are inclined downward in the vertical direction, and the inclination direction of the inclined holes II 82 is opposite to the inclination direction of the inclined holes I 81, so that the raw materials passing through the inclined holes I 81 move downward, and the raw materials passing through the inclined holes II 82 move upward, thereby changing the transposition direction of the raw materials to a greater extent, increasing the complexity of the raw material movement, and improving the stirring effect.

[0038] Refer to Figures 2 to 4 , Figures 6 to 8, two symmetrical fitting wheels 7 are movably sleeved at both ends of the cross frame 6. The wheel surfaces of the fitting wheels 7 close to the wall of the preparation chamber 2 are attached to the wall, so that when the power shaft 5 drives the cross frame 6 to rotate circumferentially, the cross frame 6 can drive the fitting wheels 7 to rotate synchronously, and the fitting wheels 7 roll along the wall of the preparation chamber 2. The wall of the preparation chamber 2 is regularly wavy in the circumferential direction. When the fitting wheels 7 roll along the wall of the preparation chamber 2, they can be affected by the wave shape and perform linear motion, thereby driving the cross frame to move in the same direction and driving the connected stirring plate 8 to move in the same direction. The convex part of the wave shape protruding towards the power shaft 5 is the outer convex surface 22, and the convex part of the wave shape protruding towards the outside of the stirring tank 1 is the inner concave surface 21. Centered on the power shaft 5, the outer convex surface 22 on one side is opposite to the inner concave surface 21 on the other side, so that for the two fitting wheels 7 on the same cross frame 6, when one fitting wheel 7 reaches the inner concave surface 21, the other fitting wheel 7 will reach the outer convex surface 22, so that the outer convex surface 22 pushes the attached fitting wheel 7 to drive the cross frame 6 to perform linear motion towards the inner concave surface 21 on the other side. In this way, the cross frame 6 drives the stirring plate 8 to perform reciprocating linear motion while performing circular motion, making the movement track of the stirring plate 8 more complex, covering a larger area of raw materials, and transferring the raw materials to more positions during the movement through the inclined holes I 81 and inclined holes II 82, further improving the stirring effect. Embodiment 2

[0039] Please refer to Figure 6 , Figure 8 , on the basis of Embodiment 1, symmetrically rotating shafts 12 are fixedly connected to the centers of the top and bottom ends of the stirring plate 8. The upper rotating shaft 12 is movably sleeved inside the bottom end of the upper cross frame 6, and the lower rotating shaft 12 is movably sleeved inside the top end of the lower cross frame 6, so that the stirring plate 8 can rotate around the rotating shaft 12 as a base point. A torsion spring 13 is movably sleeved outside the rotating shaft 12, so that when the stirring plate 8 rotates under the action of an external force, it can drive the torsion spring 13 to twist and store energy through the rotating shaft 12. When the external force decreases, is removed or turns, the energy-storing torsion spring 13 can drive the stirring plate 8 to quickly rotate back to its original position through the rotating shaft 12.

[0040] Refer to Figure 5 , Figure 7, a sliding cavity 9 is formed in the stirring plate 8, and a sliding plate is movably sleeved in the sliding cavity 9. The sliding plate includes a blocking plate 10 and symmetric force magnets 11 fixedly connected to both long sides of the blocking plate 10. The width value of the sliding plate is smaller than the spacing value between the inclined hole I 81 and the inclined hole II 82 on the same horizontal plane, so that the sliding plate can perform a linear motion in the sliding cavity 9 to block the inclined hole I 81 or the inclined hole II 82. After the inclined hole I 81 or the inclined hole II 82 is blocked, the resistance of the blocked part increases during the movement, causing the stirring plate 8 to swing in the direction of the increasing resistance with the rotating shaft 12 as the base point and driving the torsion spring 13 to store energy. Insertion holes 3 are formed in the outer side wall of the stirring tank 1 in a circumferentially uniform distribution. An installation block 4 is fixedly sleeved in the insertion hole 3. A uniformly distributed deflecting magnet 41 is fixedly connected to one end of the installation block 4 close to the preparation cavity 2. One end of the deflecting magnet 41 away from the installation block 4 is close to the cavity wall of the preparation cavity 2. The deflecting magnet 41 close to the outer convex surface 22 repels the adjacent force magnet 11, so that when the stirring plate 8 close to the cavity wall of the preparation cavity 2 passes through the deflecting magnet 41 at the outer convex surface 22, the adjacent force magnet 11 inside will be affected by the repulsive force and move in the direction of the power shaft 5, driving the blocking plate 10 to block the inclined hole II 82 on the side of the stirring plate 8 close to the power shaft. The deflecting magnet 41 close to the inner concave surface 21 attracts the adjacent force magnet 11, so that when the stirring plate 8 close to the cavity wall of the preparation cavity 2 passes through the deflecting magnet 41 at the inner concave surface 21, the adjacent force magnet 11 inside will be affected by the suction force and move in the direction of the inner concave surface 21, driving the blocking plate 10 to block the inclined hole I 81 on the side of the stirring plate 8 close to the inner concave surface 21. Thus, the inclined hole I 81 and the inclined hole II 82 on the stirring plate 8 are intermittently blocked, so that when the stirring plate 8 rotates circumferentially, the direction of the resistance it receives is constantly changed, thereby changing the self-rotation direction of the stirring plate 8, changing the orientation of the raw materials passing through the inclined hole I 81 and the inclined hole II 82, and self-rotating to stir the surrounding raw materials.

[0041] The blocking plates 10 within the adjacent stirring plates 8 are repelled by the adjacent force magnets 11. When the blocking plate 10 within the stirring plate 8 near the convex surface 22 moves towards the power shaft 5, the force magnet 11 on the blocking plate 10 near the power shaft 5 here will approach the similar force magnet 11 on the blocking plate 10 within another stirring plate 8 near the power shaft 5, thereby pushing this force magnet 11 to move towards the power shaft 5 under the repulsive force, causing the blocking plate 10 within the stirring plate 8 here to block the inclined hole II 82. On the other side, since the blocking plate 10 within the stirring plate 8 near the concave surface 21 moves towards the concave surface 21, the force magnet 11 on the blocking plate 10 near the power shaft 5 here will move away from the similar force magnet 11 on the blocking plate 10 within another stirring plate 8 near the power shaft 5, resulting in a weakened repulsive force. However, on the other side, the blocking plate 10 within the stirring plate 8 near the power shaft 5 moves towards the power shaft 5 and approaches the similar force magnet 11 within another stirring plate 8 near the power shaft 5, causing the blocking plate 10 within the stirring plate 8 here to move towards the concave surface 21 under the repulsive force and block the inclined hole I 81. This process repeats, enabling the stirring plate 8 to rotate circumferentially, move linearly in a reciprocating manner, and also perform a self-rotation action while in motion. This makes the motion mode of the stirring plate 8 more complex and the movement direction of the raw materials more variable, further improving the stirring effect.

[0042] A preparation method for a stirring device for preparing a backlight display fluorescent material, comprising the following preparation steps;

[0043] S1. Open the top cover 14, put the raw materials into the preparation chamber 2, and then change the top cover 14;

[0044] S2. The power shaft 5 rotates, driving the cross frame 6 and the stirring plate 8 to rotate synchronously. The stirring plate 8 circumferentially agitates the contacted raw materials and extrudes the raw materials to pass through the inclined hole I 81 and the inclined hole II 82;

[0045] S3. The fitting wheel 7 rolls on the inner wall of the preparation chamber 2, and the convex surface 22 presses against the fitting wheel 7 to drive the cross frame 6 and the stirring plate 8 to perform a linear motion;

[0046] S4. The force magnet 11 within the stirring plate 8 performs a linear motion under the influence of the direction-changing magnet 41 and the adjacent force magnet 11, intermittently blocking the inclined hole I 81 and the inclined hole II 82;

[0047] S5. When the inclined hole I 81 and the inclined hole II 82 are intermittently blocked, the stressed area on the blocked side of the stirring plate 8 increases, causing the stirring plate 8 to rotate self-driven under the impact of the raw materials;

[0048] S6. The reciprocally self-rotating stirring plate 8 agitates the surrounding raw materials and changes the positions of the penetrating inclined hole I 81 and the inclined hole II 82, guiding the raw materials to pass through the inclined hole I 81 and the inclined hole II 82 to reach different positions.

Claims

1. A stirring device for preparing a backlight display fluorescent material, characterized in that, It includes a stirring tank (1) with a preparation chamber (2) opened therein. A top cover (14) is provided at the top of the stirring tank (1). A power shaft (5) is arranged in the preparation chamber (2). Two sets of mutually perpendicular stirring devices are arranged on the power shaft (5) for stirring the raw materials over a large area. The stirring device includes two cross frames (6) that movably penetrate the power shaft (5) and are symmetrically arranged up and down, stirring plates (8) evenly distributed between the two cross frames (6), and fitting wheels (7) arranged at both ends of the cross frames (6). The stirring plates (8) are provided with vertically evenly distributed inclined holes I (81) and vertically evenly distributed inclined holes II (82) for dividing and transposing the raw materials along the way. The chamber wall of the preparation chamber (2) is regularly wavy in the circumferential direction. The convex part of the wave towards the power shaft (5) is the outer convex surface (22), and the convex part of the wave towards the outside of the stirring tank (1) is the inner concave surface (21), which is used to change the position of the stirring plate (8) in the linear direction. Taking the power shaft (5) as the center, one side of the outer convex surface (22) is opposite to the inner concave surface (21) on the other side to ensure that the cross frame (6) can perform linear reciprocating motion. The inclined hole I (81) inclines downward in the vertical direction, and the inclination direction of the inclined hole II (82) is opposite to that of the inclined hole I (81) to enhance the movement complexity of the raw materials. Symmetric rotating shafts (12) sleeved with the cross frames (6) are arranged at the centers of the top and bottom ends of the stirring plate (8) to provide a rotation base point for the stirring plate (8). A torsion spring (13) is arranged on the outer side of the rotating shaft (12) to provide power for the reverse rotation of the stirring plate (8). A sliding cavity (9) is opened in the stirring plate (8). A sliding plate is arranged in the sliding cavity (9). The sliding plate includes a blocking plate (10) and force-receiving magnets (11) symmetrically arranged on both long sides of the blocking plate (10) for receiving power to drive the blocking plate (10) to move. The width value of the sliding plate is smaller than the spacing value between the inclined hole I (81) and the inclined hole II (82) on the same horizontal plane for separately blocking the inclined hole I (81) or the inclined hole II (82).

2. The stirring device for preparing the fluorescent material of a backlight display according to claim 1, characterized in that, The cross frames (6) on the two sets of stirring devices are distributed up and down in a staggered manner to avoid interference between the adjacent cross frames (6) during linear motion.

3. The stirring device for preparing the backlight display fluorescent material according to claim 2, wherein, Taking the power shaft (5) as the center, the four stirring plates (8) are pairwise symmetric to increase the stirring area.

4. The stirring device for preparing a backlight display fluorescent material according to claim 3, wherein Circumferentially evenly distributed insertion holes (3) are opened on the outer side wall of the stirring tank (1). Installation blocks (4) are arranged in the insertion holes (3). Uniform variable-direction magnets (41) are arranged at one end of the installation block (4) close to the preparation chamber (2). The ends of the variable-direction magnets (41) far from the installation block (4) are close to the chamber wall of the preparation chamber (2) to provide power to the adjacent force-receiving magnets (11).

5. The stirring device for preparing the backlight display fluorescent material according to claim 4, characterized in that, The variable-direction magnets (41) close to the outer convex surface (22) repel the adjacent force-receiving magnets (11), and the variable-direction magnets (41) close to the inner concave surface (21) attract the adjacent force-receiving magnets (11).

6. The stirring device for preparing the backlight display fluorescent material according to claim 5, characterized in that, The blocking plate (10) adjacent to the stirring plate (8) is repelled by the nearby force magnets (11), which is used to receive external power to drive the movement of the blocking plate (10).

7. A preparation method for a backlight display fluorescent material, characterized in that, The method is applied to the stirring device for preparing the light source display fluorescent material described in claim 6, and includes the following preparation steps; S1. Open the top cover (14), put the raw materials into the preparation chamber (2), and then change the top cover (14); S2. The power shaft (5) rotates, driving the cross frame (6) and the stirring plate (8) to rotate synchronously. The stirring plate (8) circumferentially agitates the contacted raw materials and squeezes the raw materials to pass through the inclined hole I (81) and the inclined hole II (82); S3. The fitting wheel (7) rolls on the wall of the preparation chamber (2), and the convex surface (22) squeezes the fitting wheel (7) to drive the cross frame (6) and the stirring plate (8) to perform linear motion; S4. The force magnet (11) in the stirring plate (8) performs linear motion under the influence of the force of the direction-changing magnet (41) and the adjacent force magnet (11), and intermittently blocks the inclined hole I (81) and the inclined hole II (82); S5. When the inclined hole I (81) and the inclined hole II (82) are intermittently blocked, the force-bearing area of the side of the stirring plate (8) that is blocked increases, and the stirring plate (8) rotates automatically under the impact of the raw materials; S6. The reciprocally rotating stirring plate (8) agitates the surrounding raw materials and changes the positions of the penetrating inclined hole I (81) and inclined hole II (82), guiding the raw materials to pass through the inclined hole I (81) and the inclined hole II (82) to reach different positions.

Images