Solution uniform blending device and method for quantum dot film preparation

Abstract

The invention relates to the technical field of solution blending, in particular to a uniform solution blending device and method for quantum dot film preparation. Comprising a frame body; the blending tank is fixedly connected to the frame body, and the blending tank is provided with a motor; the rotating main shaft is rotationally connected to the blending tank, and the rotating main shaft is fixedly connected with an output shaft of a motor on the blending tank; the multiple stirring rods are arranged at intervals and fixedly connected to the rotating main shaft, the stirring rods are fixedly connected with stirring blades, and the stirring blades are obliquely arranged; and the premixing mechanism is arranged in the blending tank and is used for premixing different materials. Mixtures in adjacent areas are extruded towards the outer layer through the stirring blades, so that the mixtures circulate in the inner-layer area and the outer-layer area in the blending tank, the movement degree of the mixtures is increased, and the situation that the blending efficiency and the blending effect are reduced due to layering and local gathering of the mixtures in the blending tank is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of solution preparation, and in particular to a device and method for uniformly preparing a solution for preparing a quantum dot film. Background Art

[0002] Quantum dot film is a thin film structure prepared using quantum dot materials and has beneficial optoelectronic properties. Quantum dot film is widely used in LED, solar cell and display fields due to its advantages such as high color saturation, low energy consumption and low manufacturing cost. As a light-emitting layer or absorption layer, the structure of quantum dot film is usually in the shape of a "sandwich", that is, film-quantum dot glue-film, in which quantum dot glue is composed of quantum dot dispersion system and resin glue. In the production process of quantum dot glue, the quantum dot dispersion and resin glue need to be formulated to make the resulting quantum dot film suitable for different fields.

[0003] Most of the existing quantum dot glue production and mixing devices only stir the quantum dot dispersion system and resin glue. However, since the resin glue has a certain viscosity, it is not easy to disperse the resin glue, resulting in uneven mixing of the quantum dot glue. At the same time, a lot of time is required in the mixing process, which makes the mixing efficiency low. Therefore, a uniform solution mixing device and method for preparing quantum dot films is urgently needed to solve the above problems. Summary of the invention

[0004] In order to overcome the disadvantages of existing mixing devices in which materials are only stirred by a stirring rod, resulting in material stratification and local aggregation, which leads to uneven mixed materials, the present invention provides a uniform solution mixing device and method for preparing quantum dot films.

[0005] The technical solution of the present invention is: a uniform mixing device for solution for preparing quantum dot membranes, comprising: a frame; a mixing tank, fixedly connected to the frame, the mixing tank is equipped with a motor, and the mixing tank is provided with a feed connection flange, a feed pipe and a discharge connection flange; a rotating main shaft, rotatably connected to the mixing tank, the rotating main shaft is fixedly connected to the output shaft of the motor on the mixing tank; a plurality of stirring rods arranged at intervals, all fixedly connected to the rotating main shaft, the stirring rod is fixedly connected with stirring blades, the stirring blades are placed at an angle, and are used to circulate materials in the mixing tank; a premixing mechanism is arranged in the mixing tank, and is used to premix different materials.

[0006] Furthermore, the stirring blade is twisted to circulate the material in the mixing tank.

[0007] Further, the premixing mechanism includes: a first disk and a second disk, both of which are rotatably connected in the mixing tank, the first disk and the second disk are both fixedly connected to the rotating main shaft, and a first cavity is arranged between the second disk and the mixing tank; a plurality of feed members are arranged at intervals, each of which is arranged between the first disk and the second disk, the feed member is provided with a second cavity, a plurality of through holes and a plurality of feed channels, the through holes are connected to adjacent feed channels, and the through holes are connected to the second cavity; a plurality of feed pipes are arranged at intervals, fixedly connected between the rotating main shaft and the feed member, the feed pipe is connected to the second cavity, the feed member is provided with a third cavity, the third cavity is connected to the first cavity through an intermediate pipe, and the feed member is equipped with a plurality of atomizing nozzles, and the atomizing nozzles are connected to adjacent third cavities and adjacent feed channels.

[0008] Furthermore, the atomizing nozzle is placed at an angle to blow materials in adjacent areas.

[0009] Furthermore, it also includes: a plurality of limit rods arranged at intervals and respectively fixedly connected to adjacent material passing parts, the first plate and the second plate are both slidably connected to the material passing parts, the material passing pipe and the middle pipe between the material passing part and the first plate are both made of soft materials, and the mixing tank is provided with a first limit groove, and the first limit groove is used to limit the limit rod.

[0010] Furthermore, the first limiting groove is a wave-shaped closed groove, which is used to enable the material transfer member and the second disk to slide relative to each other.

[0011] Furthermore, it also includes: a piston member, which is slidably connected to the rotating main shaft, the piston member is equipped with a one-way valve, a fourth cavity is provided in the rotating main shaft, the piston member is located in the fourth cavity, the rotating main shaft is provided with a discharge hole, an intermediate channel is provided in the stirring rod, the intermediate channel is connected to the fourth cavity, a one-way valve is installed in the intermediate channel, a fifth cavity is provided in the stirring blade, the fifth cavity is connected to the adjacent intermediate channel, and the stirring blade is provided with feed holes arranged at intervals; a transmission assembly is provided in the preparation tank, which is used to make the piston member and the rotating main shaft slide relative to each other.

[0012] Furthermore, the transmission assembly includes: a limit member fixedly connected to the mixing tank, the limit member being provided with a second limit groove; a sliding shell splined to the rotating main shaft, the sliding shell being slidably connected to the limit member, an elastic element being provided between the limit member and the sliding shell, the sliding shell being installed with a limit block, and the second limit groove being used to limit the limit block.

[0013] Furthermore, the second limiting groove is composed of a spiral groove and a vertical groove connected end to end, and the projection of the spiral groove on the horizontal plane is 360°, which is used to guide the limiting block.

[0014] A method for uniformly preparing a solution for preparing a quantum dot film, based on the above-mentioned device for uniformly preparing a solution for preparing a quantum dot film, comprises the following steps: Step 1: Use the pump body to transfer the resin glue to the feed connection flange, the resin glue enters the second cavity through the feeding pipe, and then enters the feeding channel through the adjacent through hole. At the same time, the quantum dot dispersion system enters the first cavity through the feeding pipe, and then the quantum dot dispersion system enters the third cavity through the intermediate tube, and then enters the feeding channel after being atomized by the atomizing nozzle, and contacts with the thin strips of resin glue, so that the two are premixed during the feeding process; Step 2: Use the output shaft of the motor to drive the rotating main shaft to rotate counterclockwise, and the stirring blade begins to squeeze the mixture in the adjacent area, so that the mixture moves, so that the mixture circulates in the inner and outer layers in the mixing tank. At the same time, the mixture is also affected by the twisted area on the stirring blade and circulates up and down in the mixing tank; Step 3: The limiting rod begins to repeatedly move toward and away from the rotating main shaft under the limiting effect of the first limiting groove, and the limiting rod drives the material passing member to move together, so that the mixture coming out of the material passing channel on the material passing member is distributed in a ring shape and partially in a wave shape, so that the mixtures of the same layer height gathered in the mixing tank are staggered with each other; Step 4: The limit block starts to move under the limiting action of the spiral groove on the second limit groove, the sliding shell and the limit piece slide relative to each other, and the pressure changes in the fourth cavity, so that the mixture in the mixing tank enters the fourth cavity through the feed hole and the middle channel, and finally is discharged through the discharge hole and enters the mixing tank again, thereby completing the circulation of the mixture in the mixing tank.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: the present invention squeezes the mixture of adjacent areas toward the outer layer through the stirring blade, so that the mixture circulates in the inner and outer layer areas in the mixing tank, increasing the movement degree of the mixture, thereby avoiding stratification and local aggregation of the mixture in the mixing tank, reducing the mixing efficiency and mixing effect; the mixture is also affected by the torsion area on the stirring blade, and circulates up and down in the mixing tank, further increasing the movement degree of the mixture, and further improving the mixing efficiency and mixing effect; the quantum dot dispersion system atomized by the atomizing nozzle enters the material transfer channel and contacts with the thin strips of resin glue, so that the two are in contact during the feeding process. Premixing is performed, thereby reducing the difficulty of subsequent mixing work and improving the mixing efficiency; the first limiting groove limits the limiting rod, so that the mixture coming out of the material passing channel on the material passing member is distributed in a ring shape and also partially in a wavy shape, so that the mixtures of the same layer height gathered in the mixing tank are staggered with each other, thereby improving the mixing efficiency and mixing quality of the mixture; the relative sliding between the piston and the rotating main shaft is utilized to make the mixture in the mixing tank further circulate in the mixing tank (circulate from top to top and from outside to inside), thereby improving the movement degree of the resin glue and the quantum dot dispersion system, increasing the probability of contact between the two, and thereby improving the mixing efficiency of the two. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 It is a three-dimensional structural cross-sectional view of the frame and the mixing tank of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the present invention when the rotating main shaft drives the stirring rod to rotate; Figure 4 It is a three-dimensional structural cross-sectional view of the mixing tank of the present invention when it rotates relative to the rotating main shaft; Figure 5 It is a sectional view of the three-dimensional structure when the first plate and the material transfer member slide relative to each other in the present invention; Figure 6 It is a three-dimensional structural cross-sectional view of the material transfer part of the present invention; Figure 7 It is a three-dimensional structural cross-sectional view of the mixing tank of the present invention; Figure 8 This is a three-dimensional structural cross-sectional view of the stirring rod of the present invention driving the stirring blade to rotate; Fig. 9 It is a three-dimensional structural cross-sectional view of the position-limiting member and the sliding shell of the present invention; Fig.10 It is a three-dimensional structural exploded view of the rotating main shaft and the parts thereon of the present invention.

[0017] In the accompanying drawings: 1: frame, 2: mixing tank, 3: rotating main shaft, 4: stirring rod, 5: stirring blade, 601: first plate, 602: second plate, 603: first cavity, 604: material passing piece, 605: second cavity, 606: material passing tube, 607: third cavity, 701: limiting rod, 702: first limiting groove, 801: piston piece, 802: fourth cavity, 803: discharge hole, 804: middle channel, 805: fifth cavity, 806: feed hole, 901: limiting piece, 902: second limiting groove, 903: sliding shell, 904: limiting block. DETAILED DESCRIPTION

[0018] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] like Figure 1-Figure 4 As shown, an embodiment of the present invention is proposed, which provides a uniform solution preparation device for preparing quantum dot films, so as to solve the problem that the material in the existing preparation device is only stirred by the stirring rod alone, and there are phenomena of material stratification and local aggregation, resulting in uneven material after preparation. The device comprises: a frame 1; a preparation tank 2, which is fixedly connected to the frame 1, the preparation tank 2 is equipped with a motor, and the preparation tank 2 is provided with a feed connection flange, a feed pipe and a discharge connection flange; a rotating main shaft 3, which is rotatably connected to the preparation tank 2, and the rotating main shaft 3 is fixedly connected to the output shaft of the motor on the preparation tank 2; a stirring rod 4, which is a plurality of stirring rods arranged at intervals and fixedly connected to the rotating main shaft 3, and the stirring rod 4 is fixedly connected with a stirring blade 5, which is tilted and used to transfer the material in the preparation tank 2, and the stirring blade 5 is twisted and used to circulate the material in the preparation tank 2; a premixing mechanism is arranged in the preparation tank 2, and is used to premix different materials.

[0020] In the above scheme, the feed connection flange and the feed pipe are both located at the upper part of the mixing tank 2, the discharge connection flange is located at the lower part of the mixing tank 2, the feed connection flange on the mixing tank 2 is connected to the external resin glue storage tank, and the pump body is used to transfer the gum to the feed connection flange, the feed pipe on the mixing tank 2 is connected to the external quantum dot dispersion system storage tank, and the pump body is used to transfer the quantum dot dispersion system to the feed pipe, the discharge connection flange on the mixing tank 2 is connected to the external collection device for collecting the prepared quantum dot colloid, and multiple inclined stirring blades 5 at different heights are staggered in the horizontal direction for making the material in the mixing tank 2 circulate inside and outside (layers), and the twisted area on the stirring blade 5 is used for making the material in the mixing tank 2 circulate up and down (layers), thereby improving the uniformity of the stirred material.

[0021] When it is necessary to prepare the quantum dot colloid, the resin glue is passed into the feed connection flange, the quantum dot dispersion system is passed into the feed pipe, and then enters the preparation tank 2 after being processed by the premixing mechanism. As the feeding time increases, the resin glue and the quantum dot dispersion system (for the convenience of expression, the mixture is used instead below) gradually accumulate in the preparation tank 2. When the mixture accumulates to a certain amount, the feeding is stopped, and then the output shaft of the motor drives the rotating main shaft 3 to rotate counterclockwise (such as Figure 3 Taking the top view as an example), the rotating main shaft 3 drives the adjacent stirring blades 5 to rotate counterclockwise through the stirring rod 4, and the stirring blades 5 on the upper and lower sides begin to gather the mixture in the adjacent areas to the middle, and the stirring blades 5 in the middle squeeze the mixture in the adjacent areas to the outer layer, so that the mixture circulates in the inner and outer layer areas in the mixing tank 2, increasing the movement degree of the mixture, thereby avoiding stratification and local aggregation of the mixture in the mixing tank 2, reducing the mixing efficiency and mixing effect. During the process, the mixture is also affected by the twisted area on the stirring blade 5, and circulates up and down in the mixing tank 2, further increasing the movement degree of the mixture, and further improving the mixing efficiency and mixing effect.

[0022] like Figure 2 , Figure 4-Figure 6As shown, the premixing mechanism includes: a first disk 601 and a second disk 602, both of which are rotatably connected to the mixing tank 2, the first disk 601 and the second disk 602 are both fixedly connected to the rotating main shaft 3, and a first cavity 603 is provided between the second disk 602 and the mixing tank 2; a plurality of material transfer members 604 are arranged at intervals, and are all arranged between the first disk 601 and the second disk 602, and the material transfer member 604 is provided with a second cavity 605, a plurality of through holes and a plurality of material transfer channels, the through holes are connected to the adjacent material transfer channels, and the through holes are connected to the second The cavity 605 is connected; the feeding pipes 606 are multiple and arranged at intervals, fixedly connected between the rotating main shaft 3 and the feeding piece 604, the feeding pipe 606 is connected to the second cavity 605, the feeding piece 604 is provided with a third cavity 607, the third cavity 607 is connected to the first cavity 603 through an intermediate tube, the feeding piece 604 is equipped with multiple atomizing nozzles, the atomizing nozzles are connected to the adjacent third cavity 607 and the adjacent feeding channels, the atomizing nozzles are placed at an angle, and are used to blow materials in adjacent areas.

[0023] In the above scheme, the distance between two adjacent material transfer channels on the material transfer member 604 gradually decreases from one side close to the rotating main shaft 3 to the other side. According to the change in area at different inner diameters in the mixing tank 2, the arrangement of the material transfer channels on the material transfer member 604 is adjusted to make the upper side of the mixture accumulated in the mixing tank 2 rise horizontally, so as to prevent the mixture in the mixing tank 2 from being unevenly distributed in the horizontal direction, resulting in uneven mixture after mixing, thereby affecting the preparation of the quantum dot film. The multiple through holes on the material transfer member 604 are divided into several groups, each group includes six circumferentially distributed through holes, each group of through holes is connected to adjacent material transfer channels, and the edge area of ​​the through hole is "higher" than the adjacent area on the material transfer member 604, so as to make the through hole and the adjacent area of ​​the through hole The resin glue discharged moves downward in the form of thin strips, and the distribution form of the multiple atomizing nozzles is the same as the multiple through holes. After the resin glue passes into the feed connection flange, the resin glue enters the second cavity 605 through the feeding pipe 606, and then the resin glue enters the feeding channel through the adjacent through holes on the feeding piece 604. At the same time, the quantum dot dispersion system enters the first cavity 603 after passing through the feeding pipe, and then the quantum dot dispersion system enters the third cavity 607 through the intermediate tube between the feeding piece 604 and the first plate 601, and then enters the feeding channel after being atomized by the atomizing nozzle, and contacts with the thin strips of resin glue, so that the two are pre-mixed during the feeding process, thereby reducing the difficulty of subsequent mixing work and improving the mixing efficiency.

[0024] During the counterclockwise rotation of the main shaft 3 , the main shaft 3 drives the first disk 601 and the second disk 602 to rotate counterclockwise together, and the first disk 601 and the second disk 602 jointly drive the material transfer piece 604 to rotate counterclockwise together, so that the resin glue and the quantum dot dispersion system are gradually accumulated evenly in the preparation tank 2 .

[0025] like Figure 5-Figure 7As shown, it also includes: a limit rod 701, which is a plurality of spaced-apart arrangements and fixedly connected to adjacent feeding members 604, respectively; the first plate 601 and the second plate 602 are both slidably connected to the feeding member 604; the feeding pipe 606 and the middle pipe between the feeding member 604 and the first plate 601 are all made of soft materials; the mixing tank 2 is provided with a first limit groove 702, which is used to limit the limit rod 701; the first limit groove 702 is a wavy closed groove, which is used to allow the feeding member 604 and the second plate 602 to slide relative to each other.

[0026] In the above scheme, there are arc-shaped areas with different diameters on the first limiting groove 702, which are used to change the position of the feeding piece 604 on the second disk 602. During the counterclockwise rotation of the feeding piece 604, the feeding piece 604 drives the adjacent limiting rod 701 to rotate counterclockwise together, and the limiting rod 701 begins to slide in the first limiting groove 702. During the process, the limiting rod 701 begins to repeatedly move toward and away from the rotating main shaft 3 under the limiting effect of the first limiting groove 702, and the limiting rod 701 drives the feeding piece 604 to move together, so that the mixture coming out of the feeding channel on the feeding piece 604 is distributed in a ring shape and also partially in a wavy shape, so that the mixtures of the same layer height gathered in the preparation tank 2 are staggered with each other, thereby improving the preparation efficiency and preparation quality of the mixture.

[0027] like Figure 8-Figure 10 As shown, it also includes: a piston member 801, which is slidably connected to the rotating main shaft 3, the piston member 801 is equipped with a one-way valve, a fourth cavity 802 is arranged in the rotating main shaft 3, the piston member 801 is located in the fourth cavity 802, the rotating main shaft 3 is provided with a discharge hole 803, an intermediate channel 804 is arranged in the stirring rod 4, the intermediate channel 804 is connected with the fourth cavity 802, a one-way valve is installed in the intermediate channel 804, a fifth cavity 805 is arranged in the stirring blade 5, the fifth cavity 805 is connected with the adjacent intermediate channel 804, and the stirring blade 5 is provided with feed holes 806 arranged at intervals; a transmission assembly is arranged in the preparation tank 2, and is used to make the piston member 801 and the rotating main shaft 3 slide relative to each other.

[0028] In the above scheme, the flow direction of the one-way valve on the piston 801 is from bottom to top, and the discharge holes 803 are multiple and circumferentially distributed, so as to evenly distribute the mixture. The flow direction of the one-way valve in the middle channel 804 is from one side away from the rotating main shaft 3 to the other side. The feed holes 806 are vertically distributed on the stirring blades 5, and the multiple vertical stirring blades 5 completely cover the mixing area in the mixing tank 2. During the mixing process, due to the action of the transmission component, negative pressure appears in the lower part of the fourth cavity 802, and the mixture is discharged through the feed holes 806. 06 absorbs the mixture in the adjacent area, and the mixture enters the fourth cavity 802 after passing through the fifth cavity 805, the middle channel 804 and the adjacent one-way valve, and then the mixture passes through the one-way valve on the piston 801, and finally is discharged into the preparation tank 2 through the discharge hole 803, so that the mixture can be further circulated in the preparation tank 2 (circulated from top to top and from outside to inside), so as to improve the movement degree of the resin glue and the quantum dot dispersion system, increase the probability of contact between the two, and thereby improve the preparation efficiency of the two.

[0029] like Figure 8-Figure 10 As shown, the transmission assembly includes: a limit member 901, fixedly connected to the mixing tank 2, the limit member 901 is provided with a second limit groove 902; a sliding shell 903, splined to the rotating main shaft 3, the sliding shell 903 is slidably connected to the limit member 901, an elastic element is provided between the limit member 901 and the sliding shell 903, the sliding shell 903 is installed with a limit block 904, the second limit groove 902 is used to limit the limit block 904, the second limit groove 902 is composed of a spiral groove and a vertical groove connected end to end, and the projection of the spiral groove on the horizontal plane is 360°, which is used to guide the limit block 904.

[0030] In the above scheme, the elastic element between the limit member 901 and the sliding shell 903 is a spring, which is used to apply pressure to the sliding shell 903. During the counterclockwise rotation of the rotating main shaft 3, the rotating main shaft 3 drives the sliding shell 903 to rotate counterclockwise, and the sliding shell 903 drives the limit block 904 to rotate counterclockwise (at this time, the limit block 904 is located at the lower end of the spiral groove on the second limit groove 902 as an example). The limit block 904 begins to move upward under the limiting action of the spiral groove on the second limit groove 902, and the limit block 904 drives the sliding shell 903 to move upward together. The sliding shell 903 and the limit member 901 slide relative to each other, the elastic element is compressed, and the sliding shell 903 drives the piston member 801 to move upward together. At this time, no material passes through the piston member 801 (that is, the one-way valve on it is not opened), and negative pressure appears in the lower part of the fourth cavity 802, thereby starting to absorb the mixture in the preparation tank 2, thereby completing the subsequent circulation work.

[0031] like Figure 1-Figure 10As shown in FIG. 1 , an embodiment of the present invention proposes a method for uniformly preparing a solution for preparing a quantum dot film. Based on the above-mentioned device for uniformly preparing a solution for preparing a quantum dot film, the method comprises the following steps: Step 1: Use the pump body to transfer the resin glue to the feed connection flange, the resin glue enters the second cavity 605 through the feeding pipe 606, and then enters the feeding channel through the adjacent through hole. At the same time, the quantum dot dispersion system enters the first cavity 603 through the feeding pipe, and then enters the third cavity 607 through the intermediate tube, and then enters the feeding channel after being atomized by the atomizing nozzle, and contacts with the thin strips of resin glue, so that the two are premixed during the feeding process; Step 2: Use the output shaft of the motor to drive the rotating main shaft 3 to rotate counterclockwise, and the stirring blade 5 starts to squeeze the mixture in the adjacent area, so that the mixture moves, so that the mixture circulates in the inner and outer layer areas in the mixing tank 2. At the same time, the mixture is also affected by the twisted area on the stirring blade 5 and circulates up and down in the mixing tank 2; Step 3: The limiting rod 701 starts to repeatedly move toward and away from the rotating main shaft 3 under the limiting effect of the first limiting groove 702, and the limiting rod 701 drives the material passing member 604 to move together, so that the mixture coming out of the material passing channel on the material passing member 604 is distributed in a ring shape and partially in a wave shape, so that the mixtures of the same layer height gathered in the preparation tank 2 are staggered with each other; Step 4: The limit block 904 starts to move under the limiting action of the spiral groove on the second limit groove 902, the sliding shell 903 and the limit member 901 slide relative to each other, and the pressure changes in the fourth cavity 802, so that the mixture in the preparation tank 2 enters the fourth cavity 802 through the feed hole 806 and the middle channel 804, and is finally discharged through the discharge hole 803 and enters the preparation tank 2 again, thereby completing the circulation of the mixture in the preparation tank 2.

[0032] Those skilled in the art should understand that the above embodiments do not limit the present invention in any form, and any technical solutions obtained by equivalent replacement or equivalent transformation shall fall within the protection scope of the present invention.

Claims

1. A device for uniformly preparing a solution for preparing a quantum dot film, characterized in that: Included are: Frame (1); A mixing tank (2) is fixedly connected to the frame (1), the mixing tank (2) is equipped with a motor, and the mixing tank (2) is provided with a feed connection flange, a feed pipe and a discharge connection flange; A rotating main shaft (3) is rotatably connected to the mixing tank (2), and the rotating main shaft (3) is fixedly connected to an output shaft of a motor on the mixing tank (2); A plurality of stirring rods (4) are arranged at intervals and are all fixedly connected to the rotating main shaft (3). The stirring rods (4) are fixedly connected to stirring blades (5). The stirring blades (5) are placed at an angle and are used to circulate the material in the mixing tank (2); The premixing mechanism is arranged in the mixing tank (2) and is used for premixing different materials.

2. A device for uniformly preparing a solution for preparing a quantum dot film according to claim 1, characterized in that: The stirring blade (5) is of a twisted type and is used to circulate the material in the mixing tank (2).

3. A device for uniformly preparing a solution for preparing a quantum dot film according to claim 2, characterized in that: The premixing mechanism comprises: The first disk (601) and the second disk (602) are both rotatably connected in the mixing tank (2); the first disk (601) and the second disk (602) are both fixedly connected to the rotating main shaft (3); and a first cavity (603) is provided between the second disk (602) and the mixing tank (2); a plurality of material transfer members (604) arranged at intervals, each of which is disposed between the first plate (601) and the second plate (602); the material transfer member (604) is provided with a second cavity (605), a plurality of through holes and a plurality of material transfer channels, wherein the through holes are communicated with adjacent material transfer channels, and the through holes are communicated with the second cavity (605); The material transfer pipe (606) is a plurality of materials arranged at intervals and fixedly connected between the rotating main shaft (3) and the material transfer member (604); the material transfer pipe (606) is communicated with the second cavity (605); the material transfer member (604) is provided with a third cavity (607); the third cavity (607) is communicated with the first cavity (603) via an intermediate tube; the material transfer member (604) is provided with a plurality of atomizing nozzles, and the atomizing nozzles are communicated with the adjacent third cavity (607) and the adjacent material transfer channel.

4. A device for uniformly preparing a solution for preparing a quantum dot film according to claim 3, characterized in that: The atomizing nozzle is placed at an angle to blow the materials in the adjacent area.

5. A device for uniformly preparing a solution for preparing a quantum dot film according to claim 4, characterized in that: Also included are: The limiting rods (701) are multiple and spaced apart and fixedly connected to adjacent material passing members (604), the first plate (601) and the second plate (602) are both slidably connected to the material passing members (604), the material passing pipe (606) and the intermediate pipe between the material passing member (604) and the first plate (601) are both made of soft materials, and the mixing tank (2) is provided with a first limiting groove (702), which is used to limit the limiting rod (701).

6. A device for uniformly preparing a solution for preparing a quantum dot film according to claim 5, characterized in that: The first limiting groove (702) is a wave-shaped closed groove, used to enable the material passing member (604) and the second plate (602) to slide relative to each other.

7. A device for uniformly preparing a solution for preparing a quantum dot film according to claim 6, characterized in that: Also included are: A piston member (801) is slidably connected to the rotating main shaft (3), the piston member (801) is equipped with a one-way valve, a fourth cavity (802) is provided in the rotating main shaft (3), the piston member (801) is located in the fourth cavity (802), the rotating main shaft (3) is provided with a discharge hole (803), an intermediate channel (804) is provided in the stirring rod (4), the intermediate channel (804) is communicated with the fourth cavity (802), a one-way valve is installed in the intermediate channel (804), a fifth cavity (805) is provided in the stirring blade (5), the fifth cavity (805) is communicated with the adjacent intermediate channel (804), and the stirring blade (5) is provided with feed holes (806) arranged at intervals; A transmission assembly is arranged in the mixing tank (2) and is used to cause the piston member (801) and the rotating main shaft (3) to slide relative to each other.

8. A device for uniformly preparing a solution for preparing a quantum dot film according to claim 7, characterized in that: The transmission assembly comprises: A limiting member (901) is fixedly connected to the mixing tank (2), and the limiting member (901) is provided with a second limiting groove (902); A sliding shell (903) is spline-connected to the rotating main shaft (3); the sliding shell (903) is slidably connected to the limiting member (901); an elastic element is provided between the limiting member (901) and the sliding shell (903); a limiting block (904) is installed on the sliding shell (903); and the second limiting groove (902) is used to limit the limiting block (904).

9. A device for uniformly preparing a solution for preparing a quantum dot film according to claim 8, characterized in that: The second limiting groove (902) is composed of a spiral groove and a vertical groove connected end to end, and the projection of the spiral groove on the horizontal plane is 360°, which is used to guide the limiting block (904).

10. A method for uniformly preparing a solution for preparing a quantum dot film, characterized in that: According to the device for uniformly preparing a solution for preparing a quantum dot film according to claim 9, the specific method of use is as follows: Step 1: Use the pump body to transfer the resin glue to the feed connection flange, the resin glue enters the second cavity (605) through the feeding pipe (606), and then the resin glue enters the feeding channel through the adjacent through hole. At the same time, the quantum dot dispersion system enters the first cavity (603) through the feeding pipe, and then the quantum dot dispersion system enters the third cavity (607) through the intermediate tube, and then enters the feeding channel after being atomized by the atomizing nozzle, and contacts with the thin strips of resin glue, so that the two are premixed during the feeding process; Step 2: Use the output shaft of the motor to drive the rotating main shaft (3) to rotate counterclockwise, and the stirring blade (5) begins to squeeze the mixture in the adjacent area, so that the mixture moves, so that the mixture circulates in the inner and outer layer areas in the mixing tank (2). At the same time, the mixture is also affected by the twisted area on the stirring blade (5) and circulates up and down in the mixing tank (2); Step 3: The limiting rod (701) starts to repeatedly move in the direction of approaching and moving away from the rotating main shaft (3) under the limiting effect of the first limiting groove (702), and the limiting rod (701) drives the material passing member (604) to move together, so that the mixture discharged from the material passing channel on the material passing member (604) is distributed in a circular shape and also partially in a wavy shape, so that the mixtures of the same layer height gathered in the mixing tank (2) are staggered with each other; Step 4: The limiting block (904) starts to move under the limiting action of the spiral groove on the second limiting groove (902), and the sliding shell (903) and the limiting member (901) slide relative to each other, causing a pressure change in the fourth cavity (802), so that the mixture in the mixing tank (2) enters the fourth cavity (802) through the feed hole (806) and the middle channel (804), and finally is discharged through the discharge hole (803) and enters the mixing tank (2) again, thereby completing the circulation of the mixture in the mixing tank (2).

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