Raw material mixing device and preparation method for preparation of fluorescent material for backlight display

Abstract

The invention discloses a raw material mixing device for preparing a fluorescent material for backlight display and a preparation method. The raw material mixing device comprises a mixing cylinder, a feeding port is formed in the top of the mixing cylinder, an annular supporting frame is further arranged at the top of the mixing cylinder, a plurality of sets of raw material cylinders are evenly arranged on the peripheral side of the annular supporting frame, and an annular base is rotationally arranged in the annular supporting frame; a plurality of groups of arc-shaped areas are arranged on the annular base, and a material receiving box is arranged in each group of arc-shaped areas; a discharging port is formed in the bottom of the mixing barrel, a rotating shaft is rotationally arranged in the mixing barrel, the bottom end of the rotating shaft extends to the position below the discharging port and is provided with a discharging gear, and an auger is arranged on the part, located in the discharging port, of the rotating shaft; arc-shaped tooth parts used for being meshed with the discharging gear are arranged at the positions, located in the arc-shaped areas, of the inner ring plate, each arc-shaped tooth part is composed of multiple sets of tooth part units, each set of tooth part units are independently arranged on the inner ring plate in a vertical sliding mode, and a driving assembly for driving each set of tooth part units to slide is arranged on the annular base; the raw materials can be automatically fed into the mixing cylinder for stirring according to the reverse rotation of the motor in proportion.

Description

Technical Field

[0001] The present invention relates to the field of preparation of fluorescent materials, and particularly to a raw material mixing device and a preparation method for preparing fluorescent materials for backlight display. Background Art

[0002] Fluorescent pigments are divided into inorganic fluorescent pigments (such as fluorescent pigments used in fluorescent lamps and anti-counterfeiting fluorescent inks) and organic fluorescent pigments (also known as daylight fluorescent pigments). Only substances with some specific chemical structures have fluorescent properties. When preparing fluorescent materials and mixing various chemical substances, a raw material mixing device is required.

[0003] Currently, when mixing fluorescent materials, it is necessary to weigh them separately according to the raw material ratio of the fluorescent materials. After weighing each of the various raw materials one by one, they are poured into the mixing cylinder for mixing and stirring, resulting in low efficiency and poor mixing quality. Summary of the Invention

[0004] The purpose of the present invention is to provide a raw material mixing device and a preparation method for preparing fluorescent materials for backlight display to solve the above technical problems.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A raw material mixing device for preparing fluorescent materials for backlight display, including a mixing cylinder. The top of the mixing cylinder is provided with a feed inlet, and the top of the mixing cylinder is also provided with an annular support frame. A plurality of raw material cylinders are evenly arranged on the circumferential side of the annular support frame. An annular area is formed below the annular support frame and above the raw material cylinders. An annular base is rotatably arranged in the annular area. The annular base includes an outer ring plate, an inner ring plate, and connecting partition plates. The outer ring plate and the inner ring plate are coaxially arranged and are fixedly connected to each other through a plurality of connecting partition plates. The outer ring plate and the inner ring plate are divided into a plurality of arc-shaped areas by a plurality of connecting partition plates. A receiving box is arranged in each arc-shaped area. A motor is arranged on the top of the mixing cylinder. The output end of the motor is fixed with a long rod, and a fixing rod is connected between the long rod and the annular base; The bottom of the mixing cylinder is provided with a discharge port. A rotating shaft is rotatably arranged in the mixing cylinder. The bottom end of the rotating shaft extends below the discharge port and is provided with a discharge gear. A screw conveyor is arranged on the part of the rotating shaft located in the discharge port; Arc-shaped tooth parts for meshing with the discharge gear are arranged on the inner ring plate at the position of each arc-shaped area. The arc-shaped tooth parts are composed of a plurality of tooth part units. Each tooth part unit is independently arranged to slide up and down on the inner ring plate. A driving component for driving each tooth part unit to slide is arranged on the annular base.

[0006] Preferably, an annular plate is horizontally provided on the inner wall of the inner ring plate. An arc-shaped groove for the up-and-down sliding of the arc-shaped tooth part is provided on the inner ring plate. The driving assembly includes a screw rod, a driving gear, a cylinder and a meshing plate member. A plurality of groups of screw rods corresponding to the tooth part units are provided. The screw rods are rotatably arranged on the annular plate. The top of the screw rod penetrates through the tooth part unit and is in threaded connection with the tooth part unit. The driving gear is fixed to the top of the screw rod. The screw rods cooperating with a group of arc-shaped tooth parts gradually become longer from one side to the other side. The output end of the cylinder is fixedly connected to the meshing plate member and drives the meshing plate member to move up and down.

[0007] Preferably, the meshing plate member includes an upward meshing plate and a restoring meshing plate. The upward meshing plate and the restoring meshing plate are respectively used to mesh with both sides of the driving gear. After the upward meshing plate meshes with the driving gear, it drives the tooth part unit to move upward. After the restoring meshing plate meshes with the driving gear, it drives the tooth part unit to move downward. The upward meshing plate and the restoring meshing plate are fixedly connected by a connecting plate. The outer end of the output end of the cylinder is fixed to the connecting plate.

[0008] Preferably, a substrate is provided in the annular middle part of the annular support frame. The motor is fixed to the substrate. The long rod includes an upper long rod and a lower long rod. A sleeve is provided in the middle of the fixed rod. The sleeve is connected to the upper long rod through a first one-way bearing. The lower long rod is connected with a stirring blade. The lower long rod and the upper long rod are connected through a second one-way bearing. The directions of the first one-way bearing and the second one-way bearing are opposite.

[0009] Preferably, an arc-shaped guide rod is provided in each arc-shaped area. The arc-shaped guide rod penetrates through the material receiving box. The material receiving box is slidably arranged on the arc-shaped guide rod. Both ends of the arc-shaped guide rod are respectively fixed to the connecting partitions on both sides. Balancing springs are sleeved on both sides of the arc-shaped guide rod where it is located at the material receiving box. One end of the balancing spring abuts against the connecting partition, and the other end abuts against the material receiving box. An outer arc-shaped groove is provided on the annular plate. One side of the material receiving box is provided with an anti-rotation plate that forms a sliding connection with the outer arc-shaped groove. The anti-rotation plate includes a sleeve plate and an inlaid plate slidably arranged in the sleeve plate. An inner spring for driving the inlaid plate to slide outwards is provided in the sleeve plate. A plurality of groups of abutting rods for abutting against the anti-rotation plate are provided on the inner wall of the annular area. A long inclined surface for abutting against the abutting rod is provided on the anti-rotation plate.

[0010] Preferably, the bottom of the material receiving box is provided with a through hole. Door plates are hinged on both sides of the through hole position of the material receiving box. A long abutting rod for abutting against the long inclined surface is provided on the inner wall of the annular area at the feeding port. An opening linkage assembly is provided on the material receiving box. After the long abutting rod abuts against the long inclined surface, it drives the door plate to open through the opening linkage assembly.

[0011] Preferably, rotating shafts are symmetrically arranged on both sides of the door panel. The rotating shafts penetrate through the box wall of the material receiving box and form a rotational connection. Extension plates are symmetrically arranged on both sides of the material receiving box. The door opening linkage assembly includes a linkage rod, a first bevel gear, a second bevel gear, a linkage gear, and a linkage rack. The first bevel gear is fixed to the outer end of the rotating shaft. The linkage rod is rotatably arranged on the extension plate. The second bevel gears are fixed to both ends of the linkage rod in the length direction and are respectively meshed and connected with the first bevel gears on both sides. An extension rod axially extends from one end of the second bevel gear. One end of the extension rod extends into the material receiving box and is fixedly connected with the linkage gear. The linkage rack is slidably arranged in the material receiving box, and one end thereof is meshed and connected with the linkage gear. One end of the embedded plate slidably arranged in the outer jacket plate is provided with an abutting inclined surface that abuts against the linkage rack.

[0012] Preferably, a stable tooth portion is provided at the outer end of the embedded plate. A stable gear for meshing with the stable tooth portion is rotatably arranged on the long abutting rod. The stable gear is rotatably connected to the long abutting rod through a third one-way bearing.

[0013] Preferably, the arc-shaped guide rod includes a straight rod and curved rods symmetrically arranged on both sides of the straight rod. The material receiving box is slidably sleeved on the curved rods. A plurality of sets of collar rings are sleeved on the straight rod. The collar rings are slidably arranged on the straight rod, and dispersing rods are provided on the outer walls thereof. A wave groove is provided on the outer wall of the straight rod. A short shaft that forms a sliding fit with the wave groove is provided on the inner wall of the collar ring. An annular groove is provided on the outer wall of the collar ring. A driving rod is fixed to the inner wall of the material receiving box. One end of the driving rod extends into the annular groove.

[0014] A preparation method of a fluorescent material for backlight display includes the following steps: Step 1, pour various raw materials required for manufacturing the fluorescent material for backlight display into multiple groups of raw material cylinders respectively; Step 2, the motor rotates in reverse to drive the annular base to rotate. According to the proportion required for each raw material, drive the corresponding number of groups of tooth portion units to move upward through the driving assembly, so that the arc-shaped tooth portions pass through the mixing cylinder and then mesh with the discharge gear through the upward moving tooth portion units, so that each group of mixing cylinders drop raw materials into the material receiving box according to the proportion required for the raw materials; Step 3, after the annular base rotates one week, when the material receiving box is located above the feed port, the bottom is opened to allow the raw materials to fall into the mixing cylinder through the feed port. The motor rotates forward to drive the stirring blades to rotate and stir and mix the raw materials. After mixing is completed, the raw materials are discharged through the bottom valve.

[0015] Compared with the prior art, the beneficial effects of the present invention are: By arranging multiple groups of raw material cylinders on the annular support frame, an annular base is rotatably arranged inside the raw material support. A material receiving box is arranged inside the annular base. A screw conveyor is rotatably arranged inside the raw material cylinder. A discharge gear is arranged at the bottom of the screw conveyor. A tooth part unit is arranged on the annular base. An upward engagement plate for controlling the number of upward movement tooth part units in each group of arc-shaped tooth parts is arranged on the annular base, so that after the material receiving box passes through each raw material cylinder, each group of raw material cylinders can fall into the material receiving box according to the required proportion of the corresponding raw materials; Arc-shaped guide rods are arranged in the arc-shaped area. The arc-shaped guide rods include bent rods and support rods. Sleeve rings are arranged on the support rods. Dispersion rods are arranged on the sleeve rings. Arc-shaped guide rods are symmetrically arranged on both sides of the material receiving box with balance springs. A resisting rod for abutting against the embedded plate is arranged on the annular support frame. After the material receiving box compresses one side of the balance spring and disengages from the resisting rod, through the vibration of the material receiving box and the agitation of the dispersion rods, the raw materials can be preferentially mixed and then sent into the mixing cylinder, which can improve the production quality of the fluorescent material; By arranging a long resisting rod that abuts against the long inclined surface, the door plate at the bottom of the material receiving box can be opened. The stabilizing gear is arranged on the long resisting rod through a third one-way bearing, and a stabilizing tooth part meshing with the stabilizing gear is arranged on the embedded plate, so that the door plate can be kept open for a period of time, which is convenient for sending the mixed raw materials into the mixing cylinder. Brief Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0017] Figure 1 is the structural schematic diagram of the whole of the present invention; Figure 2 is the exploded schematic diagram of the present invention highlighting the separation of the annular base and the mixing cylinder; Figure 3 is the structural schematic diagram of the present invention highlighting the positions of the resisting rod and the long resisting rod; Figure 4 is Figure 3 the enlarged schematic diagram of part A in; Figure 5 is the explanatory schematic diagram of the present invention highlighting the engagement plate member; Figure 6 is the structural schematic diagram of the present invention highlighting the long rod; Figure 7 is the exploded schematic diagram of the present invention highlighting the raw material cylinder and the screw conveyor; Figure 8 is the structural schematic diagram of the present invention highlighting the bottom of the material receiving box; Figure 9It is a schematic cross-sectional view highlighting the linkage rack and linkage gear of the present invention; Figure 10 It is an exploded view highlighting the stable quality and long abutting rod of the present invention.

[0018] In the attached drawings, the list of components represented by each reference numeral is as follows: 1. Mixing cylinder; 2. Feed inlet; 3. Ring-shaped support frame; 4. Raw material cylinder; 5. Ring-shaped area; 6. Ring-shaped base; 601. Outer ring plate; 602. Inner ring plate; 603. Connecting partition plate; 7. Arc-shaped area; 8. Material receiving box; 9. Motor; 10. Long rod; 101. Upper long rod; 102. Lower long rod; 11. Fixed rod; 12. Substrate; 13. First one-way bearing; 14. Second one-way bearing; 15. Stirring blade; 16. Discharge port; 17. Rotating shaft; 18. Discharge gear; 19. Auger; 201. Tooth unit; 21. Long rotating rod; 22. Long rotating rod groove; 23. Auxiliary stirring rod; 24. Ring plate; 25. Arc-shaped groove; 26. Driving assembly; 261. Screw; 262. Driving gear; 263. Cylinder; 264. Meshing plate member; 2641. Upward meshing plate; 2642. Recovery meshing plate; 2643. Connecting plate; 27. Arc-shaped guide rod; 271. Bent rod; 272. Support rod; 28. Balance spring; 29. Outer arc-shaped groove; 30. Anti-rotation plate; 301. Sleeve plate; 302. Inserted plate; 31. Inserted plate groove; 32. Inner spring; 33. Limit side rod; 34. Abutting rod; 35. Long inclined surface; 36. Outer ring groove; 37. Sleeve ring; 38. Dispersion rod; 39. Wave groove; 40. Ring-shaped groove; 41. Driving rod; 42. Door panel; 43. Long abutting rod; 44. Door opening linkage assembly; 441. Linkage rod; 442. First bevel gear; 443. Second bevel gear; 444. Linkage gear; 445. Linkage rack; 45. Rotating rod; 46. Extension plate; 47. Extension rod; 48. Abutting inclined surface; 49. Limit disk; 50. Abutting spring; 51. Stable tooth part; 52. Stable gear; 53. Third one-way bearing; 54. Sleeve; 55. Inner arc-shaped groove; 56. Inner arc plate. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the attached drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0020] Please refer to Figures 1-10 , the present invention provides a first embodiment: Refer to Figure 1 , 2, 6, A raw material mixing device for preparing a fluorescent material for a backlight display, comprising a mixing cylinder 1. There is a feed port 2 at the top of the mixing cylinder 1. There is also an annular support frame 3 at the top of the mixing cylinder 1. A plurality of raw material cylinders 4 are evenly arranged on the circumferential side of the annular support frame 3. An annular area 5 is formed below the annular support frame 3 and within the annular area 5, there is a rotatable annular base 6. The annular base 6 includes an outer ring plate 601, an inner ring plate 602 and connecting partition plates 603. The outer ring plate 601 and the inner ring plate 602 are coaxially arranged and are fixedly connected to each other by a plurality of connecting partition plates 603. The outer ring plate 601 and the inner ring plate 602 are divided into a plurality of arc-shaped areas 7 by a plurality of connecting partition plates 603. A receiving box 8 is arranged in each arc-shaped area 7. There is a motor 9 at the top of the mixing cylinder 1. A long rod 10 is fixed to the output end of the motor 9. A fixing rod 11 is connected between the long rod 10 and the annular base 6. A substrate 12 is arranged in the annular middle of the annular support frame 3. The motor 9 is fixed on the substrate 12. The long rod 10 includes an upper long rod 101 and a lower long rod 102. A sleeve 54 is arranged in the middle of the fixing rod 11. The sleeve 54 is connected to the upper long rod 101 by a first one-way bearing 13. The lower long rod 102 is connected with a stirring blade 15. The lower long rod 102 is connected to the upper long rod 101 by a second one-way bearing 14. The directions of the first one-way bearing 13 and the second one-way bearing 14 are opposite. When the motor 9 rotates in reverse, the upper long rod 101 drives the sleeve 54 to rotate and drives the annular base 6 to rotate through the fixing rod 11. At this time, the lower long rod 102 does not rotate. When the motor 9 rotates forward, the annular base 6 stops rotating, and the lower long rod 102 rotates to drive the stirring blade 15 to stir the raw materials in the mixing cylinder 1; Refer to Figure 1 , 2, 7. The bottom of the mixing cylinder 1 is provided with a discharge port 16. A rotating shaft 17 is rotatably arranged in the mixing cylinder 1. The bottom end of the rotating shaft 17 extends below the discharge port 16 and is provided with a discharge gear 18. It should be noted that: the discharge gear 18 is hollow and its diameter is larger than that of the discharge port 16. The rotating shaft 17 and the discharge gear 18 are connected by a rod body, which can avoid affecting the discharge of the discharge port 16. A screw conveyor 19 is arranged on the part of the rotating shaft 17 located in the discharge port 16; on the inner ring plate 602, an arc-shaped tooth part for meshing with the discharge gear 18 is arranged at each arc-shaped area 7 position. After the arc-shaped tooth part meshes with the discharge gear 18, it can drive the screw conveyor 19 to rotate, so as to send the raw materials in the raw material barrel downward into the receiving box 8. Among them, the arc-shaped tooth part is composed of multiple groups of tooth part units 201 (the number of tooth part units 201 can be set according to the actual situation. In this application, four groups are taken as an example, but not limited to four groups). Each group of tooth part units 201 is independently arranged to slide up and down on the inner ring plate 602. By selecting the appropriate number of tooth part units 201 corresponding to the raw materials in a raw material barrel to mesh with the discharge gear 18, the required amount of raw materials can be dropped from the raw material barrel. Among them, one end of the rotating shaft 17 located in the raw material barrel 4 is provided with a long rotating rod 21, and a long rotating rod groove 22 for the long rotating rod 21 to rotate is arranged on the inner wall of the raw material barrel 4. An auxiliary stirring rod 23 is also arranged on the rotating shaft 17 for dispersing the raw materials in the raw material barrel 4.

[0021] Refer to Figures 1-4, before the receiving box 8 enters below a group of raw material cylinders 4 to receive materials, the method of controlling the upward movement of the corresponding number of tooth units 201 is as follows: A circular plate 24 is horizontally provided on the inner wall of the inner ring plate 602. An arc-shaped groove 25 for the up and down sliding of the arc-shaped tooth part is provided on the inner ring plate 602. A driving assembly 26 for driving each group of tooth units 201 to slide is provided on the annular base 6. The driving assembly 26 includes a screw 261, a driving gear 262, a cylinder 263, and an engaging plate member 264. Multiple groups of screws 261 corresponding to the tooth units 201 are provided. The screw 261 is rotatably arranged on the circular plate 24. The top of the screw 261 penetrates through the tooth unit 201 and forms a threaded connection with the tooth unit 201. The driving gear 262 is fixed to the top of the screw 261. The multiple screws 261 cooperating with a group of arc-shaped tooth parts gradually become longer from one side to the other side. The output end of the cylinder 263 is fixedly connected to the engaging plate member 264 and drives the engaging plate member 264 to move up and down. According to the number of driving gears 262 that need to be engaged with the discharge gear 18, the height of the engaging plate member 264 is greater than the total thickness of the multiple groups of driving gears 262 corresponding to the arc-shaped tooth part. By driving the engaging plate member 264 to move down to the required height by the cylinder 263, the gears that need to be engaged with the engaging plate member 264 are located within the height and thickness range where the engaging plate member 264 is located. After the driving gear 262 passes through the engaging plate member 264, it can complete one engagement with the engaging plate member 264. Thus, the tooth unit 201 is driven to move upward by the screw 261. The upward-moved tooth unit 201 can be engaged with the discharge gear 18, and the tooth units 201 that are not moved upward are not engaged with the discharge gear 18. It should be noted that the adjacent tooth units 201 are arranged in a fitting manner, and the upward movement height of the tooth unit 201 is less than the thickness of a group of tooth units 201, so that the tooth unit 201 will not swing when engaged with the discharge gear 18. It should be noted that an inner arc-shaped groove 55 is provided on the inner ring plate 602, and an inner arc plate 56 that forms a sliding connection with the inner arc-shaped groove 55 is provided on the outer wall of the receiving box 8.

[0022] Refer to Figure 5 , 7, the engaging plate member 264 includes an upward movement engaging plate 2641 and a restoring engaging plate 2642. The upward movement engaging plate 2641 and the restoring engaging plate 2642 are respectively located on both sides of a set of raw material barrels. The driving gear 262 first passes through the upward movement engaging plate 2641, and then the tooth unit 201 that needs to engage with the discharging gear 18 moves upward. After the tooth unit 201 engages with the discharging gear 18 to complete the discharging of a set of raw material barrels, it needs to be restored to the initial position (the height position where it does not engage with the discharging gear 18) through the engagement of the restoring engaging plate 2642, so as to complete the receiving of raw material barrels once. The upward movement engaging plate 2641 and the restoring engaging plate 2642 are fixedly connected through a connecting plate 2643. The outer end of the output end of the air cylinder 263 is fixed on the connecting plate 2643. It should be noted that: the height and thickness of the upward movement engaging plate 2641 are the same as those of the restoring engaging plate 2642. The upward movement engaging plate 2641 and the restoring engaging plate 2642 are respectively used to engage both sides of the driving gear 262, so that the rotation direction of the driving gear 262 after engaging with the upward movement engaging plate 2641 is opposite to the rotation direction after engaging with the restoring engaging plate 2642.

[0023] Refer to Figures 2-4 , Figure 9, in order to enable the material receiving box 8 to access raw materials and perform a mixing operation once during the process of rotating following the annular base 6, arc guide rods 27 are provided in each arc-shaped area 7. The arc guide rods 27 penetrate through the material receiving box 8, and the material receiving box 8 is slidably arranged on the arc guide rods 27. Both ends of the arc guide rods 27 are respectively fixed on the two side connecting partitions 603. Balance springs 28 are sleeved on both sides of the arc guide rods 27 where they are located in the material receiving box 8. One end of each balance spring 28 abuts against the connecting partition 603, and the other end abuts against the material receiving box 8. An outer arc-shaped groove 29 is provided on the annular plate 24. An anti-rotation plate 30 which forms a sliding connection with the outer arc-shaped groove 29 is provided on one side of the material receiving box 8. The anti-rotation plate 30 includes a sleeve plate 301 and an inlaid plate 302 slidably arranged in the sleeve plate 301. An inlaid plate groove 31 for the inlaid plate 302 to slide is provided in the sleeve plate 301. Limiting side rods 33 are provided on both sides of one end of the inlaid plate 302 located in the inlaid plate groove 31. Limiting grooves for the limiting side rods 33 to slide are provided in the inlaid plate groove 31. An inner spring 32 for driving the inlaid plate 302 to slide outwards is provided in the sleeve plate 301. A plurality of sets of abutting rods 34 for abutting against the anti-rotation plate 30 are provided on the inner wall of the annular area 5. A long inclined surface 35 for abutting against the abutting rod 34 is provided on the anti-rotation plate 30. When the annular base 6 rotates until the abutting rod 34 abuts against the long inclined surface 35, the material receiving box 8 will first compress one side balance spring 28 on the arc guide rod 27 and slide a certain distance until the inlaid plate 302 slides into the sleeve plate 301 and the abutting rod 34 disengages from the abutting against the long inclined surface 35. At this time, the material receiving box 8 will vibrate under the action of the two side balance springs 28, so that the raw materials in the material receiving box 8 are mixed once. It should also be noted that: the outer end of the inlaid plate 302 extends outside the outer ring plate 601, and an outer ring groove 36 for the outer end of the inlaid plate 302 to slide is provided on the inner wall of the annular area 5. Among them, both the abutting rod 34 and the long abutting rod 43 are fixed on the inner wall of the outer ring groove 36.

[0024] Refer to Figure 2 、 4 , in order to enable the raw materials inside to be stirred during the vibration of the material receiving box 8, the arc guide rod 27 includes a straight rod and bent rods 271 symmetrically arranged on both sides of the straight rod. The material receiving box 8 is slidably sleeved on the bent rods 271. A plurality of sets of collar rings 37 are sleeved on the straight rod. The collar rings 37 are slidably arranged on the straight rod and dispersing rods 38 are provided on the outer walls. A wave-shaped groove 39 is provided on the outer wall of the straight rod. A short shaft which forms a sliding fit with the wave-shaped groove 39 is provided on the inner wall of the collar ring 37. An annular groove 40 is provided on the outer wall of the collar ring 37. A driving rod 41 is fixed on the inner wall of the material receiving box 8. One end of the driving rod 41 extends into the annular groove 40. During the process of the material receiving box 8 sliding on the arc guide rod 27, it will push the collar ring 37 to slide on the support rod 272 through the driving rod 41. Also, under the cooperation of the wave-shaped groove 39 and the short shaft, the collar ring 37 will rotate forward and backward, so that the dispersing rods 38 stir the raw materials in the material receiving box 8.

[0025] Refer to Figure 2 、8 9. In order to send the fed raw materials into the mixing cylinder 1 after the material receiving box 8 rotates one week following the annular base 6, the bottom of the material receiving box 8 is provided with a through hole. On both sides of the through position of the material receiving box 8, door panels 42 are hinged. On the inner wall of the annular area 5 at the feeding port 2, a long abutting rod 43 for abutting against the long inclined surface 35 is provided. On the material receiving box 8, an opening linkage assembly 44 is provided. After the long abutting rod 43 abuts against the long inclined surface 35, the door panels 42 are driven to open through the linkage assembly. The length of the long abutting rod 43 is longer than that of the abutting rod 34. After the long abutting rod 43 abuts against the long inclined surface 35, the inner wall panel will slide deeper into the sleeve plate 301.

[0026] Refer to Figure 2 、 8, 9, when the material receiving box 8 moves to above the feeding port 2 following the annular base 6, the specific way to open the door panel 42 is as follows: Rotating rods 45 are symmetrically arranged on both sides of the door panel 42. The rotating rods 45 penetrate through the box wall of the material receiving box 8 and form a rotational connection. Extension plates 46 are symmetrically arranged on both sides of the material receiving box 8. The door opening linkage assembly 44 includes a linkage rod 441, a first bevel gear 442, a second bevel gear 443, a linkage gear 444, and a linkage rack 445. The first bevel gear 442 is fixed to the outer end of the rotating rod 45. The linkage rod 441 is rotatably arranged on the extension plate 46. The second bevel gears 443 are fixed to both ends of the linkage rod 441 in the length direction and are respectively meshed with the first bevel gears 442 on both sides. Among them, the two second bevel gears 443 in the length direction of the linkage rod 441 are symmetrically arranged and are respectively meshed with one side of the two first bevel gears 442 close to each other. After the linkage rod 441 rotates, the rotation directions of the two door panels 42 can be opposite. An extension rod 47 axially extends from one end of the second bevel gear 443. One end of the extension rod 47 extends into the material receiving box 8 and is fixedly connected to the linkage gear 444. The linkage rack 445 is slidably arranged in the material receiving box 8 and one end thereof is meshed with the linkage gear 444. One end of the embedded plate 302 located in the embedded plate groove 31 is provided with a resisting inclined surface 48 that abuts against the linkage rack 445. Among them, a rack groove for the linkage rack 445 to slide and a gear area for the linkage gear 444 to rotate are provided in the material receiving box 8. One end of the linkage rack 445 extends into the embedded plate groove 31. When the resisting rod 34 abuts against the long inclined surface 35, the distance for the embedded plate 302 to slide into the embedded plate groove 31 is shorter, and the embedded plate 302 will not contact the linkage rack 445. When the long resisting rod 43 abuts against the long inclined surface 35, the driving distance for the embedded plate 302 to slide into the embedded plate groove 31 is longer, so that the resisting inclined surface 48 of the embedded plate 302 can abut against one end of the linkage rack 445 to drive the linkage rack 445 to slide. The sliding of the linkage rack 445 drives the linkage gear 444 to rotate, and drives the linkage rod 441 to rotate. Also, through the meshing of the first bevel gear 442 and the second bevel gear 443, the two door panels 42 can be driven to rotate downward, so that the raw material falls from the material receiving box 8 into the mixing cylinder. It should be noted that: a cylinder groove is provided in the rack groove, a limiting disc 49 is provided at the position of the cylinder groove on the linkage rack 445, and a resisting spring 50 that abuts against the limiting disc 49 is also sleeved on the linkage rack 445. The resisting spring 50 drives the limiting disc 49 to move towards the side of the embedded plate groove 31.

[0027] Refer to Figure 2 , 3 , 9, 10, in order to keep the door panel 42 open for a period of time to allow the raw material to pass through the feeding port 2 better (refer to Figure 3Fall into the mixing cylinder 1. A stabilizing tooth part 51 is provided at the outer end of the panel 302. A stabilizing gear 52 for meshing with the stabilizing tooth part 51 is rotatably provided on the long abutting rod 43. The stabilizing gear 52 is rotatably connected to the long abutting rod 43 through a third one-way bearing 53. When the annular base 6 rotates counterclockwise and the stabilizing tooth part 51 meshes with the stabilizing gear 52, the stabilizing tooth part 51 will drive the stabilizing gear 52 to rotate clockwise. Under the action of the third one-way bearing 53, the stabilizing gear 52 will not rotate counterclockwise, avoiding the door panel 42 from closing immediately after being opened due to the compression of one side of the balance spring 28 by the material receiving box 8.

[0028] Please refer to Figures 1-10 As shown, when the device is in use, various raw materials for making fluorescent materials are respectively placed in different raw material cylinders 4. First, adjust the height position of the meshing plate member 264 according to the required component ratio of each group of raw materials. During debugging, the air cylinder 263 corresponding to the position of the raw material cylinder 4 drives the meshing plate member 264 to move downward. After adjusting the corresponding meshing plate member 264 at each raw material cylinder 4, the motor 9 can be driven to reverse. The reverse rotation of the motor 9 drives the annular base 6 to rotate through the fixed rod 11. After the annular base 6 rotates, several driving gears 262 at the corresponding positions of the arc-shaped tooth parts will first rotate forward after passing through the upward meshing plate 2641, thereby driving the screw 261 to rotate forward. The rotation of the screw 261 drives the corresponding tooth part unit 201 to move upward to a height where it can mesh with the discharge gear 18. The annular base 6 continues to rotate counterclockwise, causing some tooth part units 201 to mesh with the discharge gear 18 and driving the discharge gear 18 to rotate. The rotation of the discharge gear 18 drives the auger 19 to rotate, so that the raw materials in the raw material cylinder 4 fall into the material receiving box 8. After the material receiving box 8 receives the raw materials in a group of raw material barrels, it continues to rotate with the annular base 6. Then, the driving gear 262 that was previously meshed with the upward meshing plate 2641 meshes with the restoring meshing plate 2642, causing the driving gear 262 to rotate counterclockwise, thereby driving the previously raised tooth part unit 201 to move downward to the initial position. Then, it meshes with the next upward meshing plate 2641 again. After the driving gear 262 meshes with the next upward meshing plate 2641 and then meshes with the discharge gear 18 to complete the discharging of the next raw material cylinder 4 and the material receiving of the material receiving box 8, the driving gear 262 is again meshed with the restoring meshing plate 2642 to restore to the initial position, and this process repeats in a cycle.

[0029] When the material receiving box 8 is located below each set of meshing plate members 264, the abutting rods 34 in the annular area 5 will all abut against the long inclined surface 35 of the panel 302 on the material receiving box 8 once. When the panel 302 abuts against the abutting rod 34, the material receiving box 8 will first compress the balance spring 28 on the arc-shaped guide rod 27 and slide a certain distance until the panel 302 slides a certain distance into the panel groove 31 and disengages from the abutting against the abutting rod 34. Under the action of the balance spring 28, the material receiving box 8 will oscillate reciprocally on the arc-shaped guide rod 27, which can mix the raw materials in the material receiving box 8; during the process of the material receiving box 8 oscillating and sliding on the arc-shaped guide rod 27, the driving rod 41 follows the movement of the material receiving box 8 and pushes the collar 37 to move on the support rod 272, and through the cooperation of the wave groove 39 and the short shaft, the dispersing rod 38 stirs the raw materials in the material receiving box 8, so that the raw materials are better mixed.

[0030] When the material receiving box 8 follows the annular base 6 to rotate one week and is located at the feeding port 2 on the mixing cylinder 1, the long inclined surface 35 of the panel 302 will abut against the long abutting rod 43 and slide into the panel groove 31. The abutting inclined surface 48 of the panel 302 located in the panel groove 31 will abut against the linkage rack 445 and drive the linkage rack 445 to move. The linkage rack 445 drives the linkage rod 441 to rotate through the meshing with the linkage gear 444. The rotation of the linkage rod 441 will drive the two groups of door panels 42 to rotate downward through the meshing of the first bevel gear 442 and the second bevel gear 443, so that the bottom of the material receiving box 8 is opened. At the same time, the stable tooth part 51 outside the panel 302 will mesh with the stable gear 52 for a period of time, so that the door panel 42 is opened for a period of time, so that the raw materials in the material receiving box 8 can fall into the mixing cylinder 1 well. After the mixing cylinder 1 finishes receiving the materials, a solvent can be added into the mixing cylinder 1 through a liquid inlet pipe (not shown in the figure), and then the motor 9 is rotated forward to carry out mixing and stirring.

[0031] Embodiment 2 A preparation method of a fluorescent material for backlight display includes the following steps: Step 1, pouring various raw materials required for manufacturing the fluorescent material for backlight display into multiple groups of raw material cylinders 4 respectively; Step 2, the motor 9 rotates reversely to drive the annular base 6 to rotate. According to the proportion required for each raw material, the driving assembly 26 drives the corresponding number of tooth part units 201 to move upward, so that the arc-shaped tooth part passes through the mixing cylinder and then meshes with the discharge gear 18 through the upward moving tooth part unit 201, so that each group of mixing cylinders drop the raw materials into the material receiving box 8 according to the proportion required for the raw materials; Step 3, after the annular base 6 rotates one week, when the material receiving box 8 is located above the feeding port 2, the bottom is opened, so that the raw materials fall into the mixing cylinder 1 through the feeding port 2. The motor 9 rotates forward to drive the stirring blade 15 to rotate to stir and mix the raw materials, and after the mixing is completed, the raw materials are discharged through the bottom valve.

[0032] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by terms such as "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "center", "both ends", etc. are based on the orientation or positional relationships in the drawings. These are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0033] In the present invention, unless otherwise clearly defined and limited, terms such as "installed", "set", "connected", "fixed", "swiveling connection", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. It can be the communication inside two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that these embodiments can be modified without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A raw material mixing device for preparing fluorescent materials for backlight display, comprising a mixing cylinder, a feeding port is provided on the top of the mixing cylinder, and the characteristics are: An annular support frame is also provided on the top of the mixing barrel, and multiple groups of raw material barrels are evenly provided on the circumference of the annular support frame. The annular support frame is located below the raw material barrel to form an annular area, and an annular base is rotatably provided in the annular area. The annular base includes an outer ring plate, an inner ring plate and a connecting partition plate. The outer ring plate and the inner ring plate are coaxially arranged and connected and fixed to each other by multiple groups of connecting partition plates. The outer ring plate and the inner ring plate are divided into multiple groups of arc-shaped areas by multiple groups of connecting partition plates, and a material receiving box is provided in each group of arc-shaped areas. A motor is provided on the top of the mixing barrel, and a long rod is fixed to the output end of the motor, and a fixing rod is connected between the long rod and the annular base; The mixing drum is provided with a discharge port at the bottom, a rotating shaft is provided in the mixing drum for rotation, the bottom end of the rotating shaft extends below the discharge port and is provided with a discharge gear, and a part of the rotating shaft located in the discharge port is provided with an auger; The inner ring plate is provided with an arc-shaped tooth portion for meshing with the discharge gear at each arc-shaped area position, and the arc-shaped tooth portion is composed of multiple groups of tooth units, and each group of tooth units is independently slid up and down on the inner ring plate, and a driving component for driving each group of tooth units to slide is provided on the annular base.

2. The raw material mixing device for preparing fluorescent materials for backlight display according to claim 1, characterized in that: An annular plate is horizontally provided on the inner wall of the inner ring plate, and an arc groove is provided on the inner ring plate for the arc-shaped teeth to slide up and down. The driving assembly includes a screw, a driving gear, a cylinder and a meshing plate. The screw is provided with multiple groups of tooth units corresponding to the screw. The screw is rotatably arranged on the annular plate. The top of the screw passes through the tooth unit and forms a threaded connection with the tooth unit. The driving gear is fixed to the top of the screw. Multiple screws matched with a group of arc-shaped teeth gradually become longer from one side to the other. The output end of the cylinder is fixedly connected to the meshing plate and drives the meshing plate to move up and down.

3. The raw material mixing device for preparing fluorescent materials for backlight display according to claim 2, characterized in that: The meshing plate comprises an upward meshing plate and a restoring meshing plate, the upward meshing plate and the restoring meshing plate are respectively used to mesh with the two sides of the driving gear, the upward meshing plate drives the tooth unit to move upward after meshing with the driving gear, and the restoring meshing plate drives the tooth unit to move downward after meshing with the driving gear, the upward meshing plate and the restoring meshing plate are fixedly connected by a connecting plate, and the outer end of the cylinder output end is fixed on the connecting plate.

4. The raw material mixing device for preparing fluorescent materials for backlight display according to claim 1, characterized in that: A base plate is provided in the middle of the ring-shaped supporting frame, the motor is fixed on the base plate, the long rod includes an upper long rod and a lower long rod, a sleeve is provided in the middle of the fixed rod, the sleeve and the upper long rod are connected by a first one-way bearing, the lower long rod is connected with a stirring blade, the lower long rod and the upper long rod are connected by a second one-way bearing, and the directions of the first one-way bearing and the second one-way bearing are opposite.

5. The raw material mixing device for preparing fluorescent materials for backlight display according to claim 2, characterized in that: An arc guide rod is provided in each group of arc areas, and the arc guide rod passes through the material receiving box, and the material receiving box is slidably arranged on the arc guide rod, and two ends of the arc guide rod are respectively fixed to the connecting partitions on both sides, and the arc guide rod is located on both sides of the material receiving box and is sleeved with a balance spring, one end of the balance spring is against the connecting partition, and the other end is against the material receiving box, an outer arc groove is provided on the annular plate, and one side of the material receiving box is provided with an anti-rotation plate that is slidably connected to the outer arc groove, the anti-rotation plate includes a sleeve plate and an inlay plate slidably arranged in the sleeve plate, the sleeve plate is provided with an inner spring that drives the inlay plate to slide outward, and a plurality of groups of abutting rods for abutting the anti-rotation plate are provided on the inner wall of the annular area, and the anti-rotation plate is provided with a long inclined surface for abutting the abutting rods.

6. The raw material mixing device for preparing fluorescent materials for backlight display according to claim 5, characterized in that: The bottom of the material receiving box is through-set, and door panels are hinged on both sides of the through-position of the material receiving box. The inner wall of the annular area is located at the feed inlet and is provided with a long abutment rod for abutting against the long inclined surface. The material receiving box is provided with a door opening linkage assembly, and after the long abutment rod abuts against the long inclined surface, the door panel is driven to open through the door opening linkage assembly.

7. The raw material mixing device for preparing fluorescent materials for backlight display according to claim 6, characterized in that: The door panels are symmetrically provided with rotating shafts on both sides, and the rotating shafts penetrate the box walls of the material receiving box and form a rotating connection. Extension plates are symmetrically provided on both sides of the material receiving box. The door opening linkage assembly includes a linkage rod, a first bevel gear, a second bevel gear, a linkage gear and a linkage rack. The first bevel gear is fixed to the outer end of the rotating shaft, and the linkage rod is rotatably arranged on the extension plate. The second bevel gear is fixed at both ends in the length direction of the linkage rod and is respectively meshed with the first bevel gears on both sides. An extension rod is axially extended with the second bevel gear at one end, and one end of the extension rod extends into the material receiving box and is fixedly connected with the linkage gear. The linkage rack is slidably arranged in the material receiving box and one end is meshed with the linkage gear. The end of the panel slidingly arranged in the outer sleeve plate is provided with an abutting inclined surface that abuts against the linkage rack.

8. The raw material mixing device for preparing fluorescent materials for backlight display according to claim 7, characterized in that: The outer end of the panel is provided with a stabilizing tooth portion, and the long abutment rod is rotatably provided with a stabilizing gear for meshing with the stabilizing tooth portion. The stabilizing gear is rotatably connected to the long abutment rod through a third one-way bearing.

9. The raw material mixing device for preparing fluorescent materials for backlight display according to claim 5, characterized in that: The arc-shaped guide rod includes a straight rod and a curved rod symmetrically arranged on both sides of the straight rod, the material receiving box is slidably arranged on the curved rod, a plurality of sets of rings are sleeved on the straight rod, the rings are slidably arranged on the straight rod and a dispersion rod is arranged on the outer wall, a wave groove is arranged on the outer wall of the straight rod, a short shaft that forms a sliding fit with the wave groove is arranged on the inner wall of the ring, an annular groove is arranged on the outer wall of the ring, a driving rod is fixed on the inner wall of the material receiving box, and one end of the driving rod extends into the annular groove.

10. A method for preparing a fluorescent material for backlight display, comprising a raw material mixing device for preparing a fluorescent material for backlight display according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1, pouring various raw materials required for manufacturing fluorescent materials for backlight display into multiple groups of raw material barrels respectively; Step 2: The motor reverses to drive the annular base to rotate, and drives the corresponding number of gear units to move upward through the driving assembly according to the required proportion of each raw material, so that the arc-shaped teeth pass through the mixing barrel and mesh with the discharging gear through the upwardly moved gear unit, so that each group of mixing barrels drops the raw materials into the receiving box according to the required proportion of the raw materials; Step 3: After the annular base rotates one circle, the bottom of the receiving box is opened when it is above the feed port, allowing the raw materials to fall into the mixing barrel through the feed port. The motor rotates forward, driving the stirring blades to rotate and stir and mix the raw materials. After mixing, the raw materials are discharged through the bottom valve.

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