A raw material mixing device and preparation method for fluorescent material for backlight display

Abstract

The present invention discloses a raw material mixing device and preparation method for fluorescent materials for backlight display, comprising a mixing drum, a feeding port is provided at the top of the mixing drum, an annular support frame is also provided at the top of the mixing drum, multiple groups of raw material drums are evenly provided on the circumference of the annular support frame, an annular base is provided for rotation inside the annular support frame, multiple groups of arc areas are provided on the annular base, and a material receiving box is provided in each group of arc areas; a discharge port is provided at the bottom of the mixing drum, a rotating shaft is provided for rotation inside the mixing drum, the bottom end of the rotating shaft extends to 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; an arc-shaped tooth portion for meshing with the discharge gear is provided at each arc area position on the inner ring plate, the arc-shaped tooth portion is composed of multiple groups of tooth units, each group of tooth units is independently slid up and down and is arranged on the inner ring plate, and a driving component for driving each group of tooth units to slide is provided on the annular base. The present invention can automatically feed the raw materials into the mixing drum for stirring in proportion according to the reversal of the motor.

Description

Technical Field

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

[0002] Fluorescent pigments are divided into inorganic fluorescent pigments (such as those used in fluorescent lamps and anti-counterfeiting fluorescent inks) and organic fluorescent pigments (also known as daylight fluorescent pigments). Only substances with certain chemical structures exhibit fluorescent properties. The preparation of fluorescent materials and the mixing of multiple chemical substances require a raw material mixing device.

[0003] Currently, when mixing fluorescent materials, they need to be weighed separately according to the raw material ratio for making the fluorescent materials. After weighing multiple raw materials one by one, they are poured into a mixing drum for mixing and stirring. This is inefficient and the mixing quality is not high. Summary of the Invention

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

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a raw material mixing device for preparing fluorescent materials for backlight display, comprising a mixing drum, a material feed port is provided at the top of the mixing drum, an annular support frame is further provided at the top of the mixing drum, a plurality of groups of raw material drums are evenly provided on the circumference of the annular support frame, the annular support frame is located below the raw material drum to form an annular area, an annular base is rotatably provided in the annular area, the annular base comprises an outer ring plate, an inner ring plate and a connecting partition, the outer ring plate and the inner ring plate are coaxially arranged and connected and fixed to each other by a plurality of groups of connecting partitions, the outer ring plate and the inner ring plate are divided into a plurality of groups of arc areas by the plurality of groups of connecting partitions, a material receiving box is provided in each group of arc areas, a motor is provided at the top of the mixing drum, 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;

[0006] The mixing drum is provided with a discharge port at the bottom, a rotating shaft is provided in the mixing drum, the bottom end of the rotating shaft extends below the discharge port and is provided with a discharge gear, and the portion of the rotating shaft located in the discharge port is provided with an auger;

[0007] The inner ring plate is provided with an arc-shaped tooth portion for engaging with the discharge gear at each arc-shaped area position. The arc-shaped tooth portion is composed of multiple groups of tooth units. Each group of tooth units is independently slid up and down on the inner ring plate. The annular base is provided with a driving component for driving each group of tooth units to slide.

[0008] Preferably, an annular plate is horizontally provided on the inner wall of the inner ring plate, and an arc-shaped groove is provided on the inner ring plate for the arc-shaped tooth portion to slide up and down. The driving assembly includes a screw, a driving gear, a cylinder and an engaging plate. The screw is provided with multiple groups corresponding to the tooth unit. The screw is rotatably set 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. The multiple screws that cooperate 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 engaging plate and drives the engaging plate to move up and down.

[0009] Preferably, the engaging plate includes an upward engaging plate and a restoring engaging plate, and the upward engaging plate and the restoring engaging plate are respectively used to engage with both sides of the driving gear. After the upward engaging plate engages with the driving gear, it drives the tooth unit to move upward, and after the restoring engaging plate engages with the driving gear, it drives the tooth unit to move downward. The upward engaging plate and the restoring engaging plate are fixedly connected by a connecting plate, and the outer end of the cylinder output end is fixed on the connecting plate.

[0010] Preferably, a base plate is provided in the middle of the ring-shaped support 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, and 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.

[0011] Preferably, 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, and the annular plate is provided with an outer arc groove, and one side of the material receiving box is provided with an anti-rotation plate that is slidably connected to the outer arc groove, and the anti-rotation plate includes a sleeve plate and an inlay plate slidably arranged in the sleeve plate, and the sleeve plate is provided with an inner spring that drives the inlay plate to slide outward, and a plurality of groups of push rods for resisting 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 resisting the push rod.

[0012] Preferably, the bottom of the material receiving box is set to be through, 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 port and is provided with a long push rod for resisting the long inclined surface. The material receiving box is provided with a door opening linkage assembly, and after the long push rod resists the long inclined surface, the door panel is driven to open through the door opening linkage assembly.

[0013] Preferably, a rotating shaft is symmetrically provided on both sides of the door panel, and the rotating shaft passes through the box wall of the material receiving box and forms 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 set on the extension plate, and 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 set in the material receiving box and one end is meshed with the linkage gear. One end of the panel is slidably set in the outer sleeve and is provided with an abutting inclined surface that abuts against the linkage rack.

[0014] Preferably, a stabilizing tooth portion is provided at the outer end of the panel, and a stabilizing gear for engaging with the stabilizing tooth portion is rotatably provided on the long push rod, and the stabilizing gear is rotatably connected to the long push rod through a third one-way bearing.

[0015] Preferably, 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 provided on the outer wall, 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 ring, an annular groove is provided 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.

[0016] A method for preparing a fluorescent material for a backlight display comprises the following steps: Step 1, pouring a plurality of raw materials required for manufacturing the fluorescent material for a backlight display into a plurality of raw material barrels respectively;

[0017] Step 2: The motor reverses to drive the annular base to rotate, and the corresponding number of gear units are driven upward by the drive assembly according to the required ratio of each raw material, so that the arc-shaped teeth pass through the mixing barrel and engage with the discharge gear through the upward-moving gear unit, so that each group of mixing barrels drops the raw materials into the receiving box according to the required ratio of the raw materials;

[0018] 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 mix the raw materials. After mixing is completed, the raw materials are discharged through the bottom valve.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] By arranging multiple groups of raw material barrels on the annular support frame, an annular base is rotatably arranged in the raw material support, a material receiving box is arranged in the annular base, an auger is rotatably arranged in the raw material barrel, a discharging gear is arranged at the bottom of the auger, a tooth unit is arranged on the annular base, and an upward meshing plate for controlling the number of upward tooth units in each group of arc-shaped teeth is provided on the annular base. After the material receiving box passes through each raw material barrel, each group of raw material barrels can fall into the material receiving box according to the required proportion of the corresponding raw materials;

[0021] An arc-shaped guide rod is provided in the arc area, and the arc-shaped guide rod includes a bent rod and a support rod. A collar is provided on the support rod, and a dispersion rod is provided on the collar. The arc-shaped guide rod is symmetrically provided with a balance spring on both sides of the material receiving box, and a support rod for abutting against the panel is provided on the annular support frame. After the material receiving box compresses one side of the balance spring and disengages the support rod, the raw materials can be mixed preferentially through the vibration of the material receiving box and the stirring of the dispersion rod before being fed into the mixing drum, thereby improving the production quality of the fluorescent material.

[0022] The door panel at the bottom of the receiving box can be opened by a long push rod that is against the long inclined surface. The stabilizing gear is set on the long push rod through a third one-way bearing, and a stabilizing tooth portion that meshes with the stabilizing gear is set on the panel, which can keep the door panel open for a period of time, making it convenient to feed the mixed raw materials into the mixing drum. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 It is a schematic structural diagram of the present invention as a whole;

[0025] Figure 2 It is an exploded schematic diagram highlighting the separation of the annular base and the mixing cylinder of the present invention;

[0026] Figure 3 This is a structural diagram of the present invention highlighting the positions of the push rod and the long push rod;

[0027] Figure 4 yes Figure 3 A magnified schematic diagram of part A;

[0028] Figure 5 is a schematic diagram illustrating the present invention, highlighting the engaging plate;

[0029] Figure 6 This is a schematic structural diagram of the present invention highlighting the long rod;

[0030] Figure 7This is a schematic diagram of the explosion of the raw material barrel and the auger in the present invention;

[0031] Figure 8 This is a structural diagram highlighting the bottom of the material receiving box of the present invention;

[0032] Figure 9 It is a cross-sectional schematic diagram highlighting the linkage rack and linkage gear of the present invention;

[0033] Figure 10 It is an exploded diagram of the present invention highlighting the stabilizing mass and the long support rod.

[0034] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0035] 1. Mixing barrel; 2. Feed inlet; 3. Annular support frame; 4. Raw material barrel; 5. Annular area; 6. Annular base; 601. Outer ring plate; 602. Inner ring plate; 603. Connecting partition; 7. Arc area; 8. Material receiving box; 9. Motor; 10. Long rod; 101. Upper long rod; 102. Lower long rod; 11. Fixed rod; 12. Base plate; 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, annular plate; 25, arc groove; 26, drive assembly; 261, screw; 262, driving gear; 263, cylinder; 264, meshing plate; 2641, upward meshing plate; 2642, restore meshing plate; 2643, connecting plate; 27, Arc guide rod; 271, curved rod; 272, support rod; 28, balance spring; 29, outer arc groove; 30, anti-rotation plate; 301, sleeve plate; 302, panel; 31, panel groove; 32, inner spring; 33, limit side rod; 34, push rod; 35, long inclined surface; 36, outer ring groove; 37, sleeve ring; 38, dispersion rod; 39, wave groove; 40, annular groove; 41, driving rod; 42, door panel; 43, long push 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. Abutment slope; 49. Limiting plate; 50. Abutment spring; 51. Stabilizing tooth portion; 52. Stabilizing gear; 53. Third one-way bearing; 54. Sleeve; 55. Inner arc groove; 56. Inner arc plate. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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 making any creative efforts shall fall within the scope of protection of the present invention.

[0037] See also Figure 1-10 , the present invention provides a first embodiment:

[0038] See Figure 1 、 2 6. A raw material mixing device for preparing fluorescent materials for backlight display, comprising a mixing drum 1, a feeding port 2 is provided on the top of the mixing drum 1, an annular support frame 3 is also provided on the top of the mixing drum 1, a plurality of groups of raw material drums 4 are evenly arranged on the circumference of the annular support frame 3, the annular support frame 3 is located below the raw material drum 4 to form an annular area 5, an annular base 6 is provided for rotation in the annular area 5, the annular base 6 comprises an outer ring plate 601, an inner ring plate 602 and a connecting partition 603, the outer ring plate 601 and the inner ring plate 602 are coaxially arranged and connected and fixed to each other by a plurality of groups of connecting partitions 603, the outer ring plate 601 and the inner ring plate 602 are divided into a plurality of groups of arc areas 7 by the plurality of groups of connecting partitions 603, a material receiving box 8 is provided in each group of arc areas 7, a motor 9 is provided on the top of the mixing drum 1, a long rod 10 is fixed to the output end of the motor 9, and the long rod 10 is connected to the annular base 6 is connected with a fixed rod 11, a base plate 12 is provided in the middle of the ring-shaped support frame 3, and the motor 9 is fixed on the base plate 12. The long rod 10 includes an upper long rod 101 and a lower long rod 102. A sleeve 54 is provided in the middle of the fixed rod 11, and the sleeve 54 and the upper long rod 101 are connected by a first one-way bearing 13. The lower long rod 102 is connected with a stirring blade 15, and the lower long rod 102 and the upper long rod 101 are connected 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 is reversed, the upper long rod 101 drives the sleeve 54 to rotate and drives the annular base 6 to rotate through the fixed 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 drum 1;

[0039] See Figure 1 、 2, 7. A discharge port 16 is provided at the bottom of the mixing drum 1. A rotating shaft 17 is provided for rotation inside the mixing drum 1. The bottom end of the rotating shaft 17 extends to 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 larger than the discharge port 16. The rotating shaft 17 and the discharge gear 18 are connected by a rod body to avoid affecting the discharge of the discharge port 16. The part of the rotating shaft 17 located in the discharge port 16 is provided with an auger 19; an arc-shaped tooth portion for meshing with the discharge gear 18 is provided at each arc-shaped area 7 on the inner ring plate 602. After the arc-shaped tooth portion is meshed with the discharge gear 18, the auger 19 can be driven to rotate, thereby sending the raw materials in the raw material barrel downward into the receiving box 8 , wherein the arc-shaped tooth portion is composed of multiple groups of tooth units 201 (the number of tooth units 201 can be set according to actual conditions. Four groups are taken as an example in this application, but it is not limited to four groups). Each group of tooth units 201 is independently slid up and down on the inner ring plate 602. The appropriate number of tooth units 201 is selected according to the proportion of the corresponding raw materials in a group of raw material barrels to engage with the discharge gear 18, so that the raw material barrel can drop the required amount of raw materials. A long rotating rod 21 is set at one end of the rotating shaft 17 located in the raw material barrel 4, and a long rotating rod groove 22 for the long rotating rod 21 to rotate is set on the inner wall of the raw material barrel 4. An auxiliary stirring rod 23 is also set on the rotating shaft 17 to disperse the raw materials in the raw material barrel 4.

[0040] See Figure 1-4Before the receiving box 8 enters a group of raw material barrels 4 to receive the material, the method of controlling the corresponding number of tooth units 201 to move upward is as follows: a ring plate 24 is horizontally provided on the inner wall of the inner ring plate 602, and an arc groove 25 is provided on the inner ring plate 602 for the arc-shaped teeth to slide up and down. 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 a meshing plate 264. The screw 261 corresponds to the tooth unit The element 201 is provided with multiple groups, the screw 261 is rotatably set on the annular plate 24, the top of the screw 261 passes 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, and the multiple screws 261 that cooperate with a group of arc-shaped teeth gradually become longer from one side to the other side. The output end of the cylinder 263 is fixedly connected to the meshing plate 264 and drives the meshing plate 264 to move up and down. The number of driving gears 262 that mesh with the discharge gear 18 as needed is adjusted. The height of the meshing plate 264 is greater than the sum of the thicknesses of the multiple sets of driving gears 262 corresponding to the arc-shaped tooth portion. The meshing plate 264 is driven downward to the required height by the cylinder 263, so that the gear that needs to mesh with the meshing plate 264 is located within the height and thickness range of the meshing plate 264. After the driving gear 262 passes through the meshing plate 264, it can complete a meshing with the meshing plate 264, thereby driving the tooth unit 201 to move upward through the screw 261, and the upward tooth unit 201 is moved upward. 01 can be engaged with the discharge gear 18, and the tooth unit 201 that has not moved up is not engaged with the discharge gear 18. It should be noted that: the adjacent tooth units 201 are arranged in a close fit, and the height of the tooth unit 201 moving up is less than the thickness of a group of tooth units 201, so that the tooth unit 201 will not swing when it is engaged with the discharge gear 18. It should be noted that: an inner arc 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 groove 55 is provided on the outer wall of the receiving box 8.

[0041] See Figure 5 、 7The meshing plate 264 includes an upward meshing plate 2641 and a restoration meshing plate 2642. The upward meshing plate 2641 and the restoration meshing plate 2642 are respectively located on both sides of a group of raw material barrels. The driving gear 262 first passes through the upward meshing plate 2641 to move the tooth unit 201 that needs to mesh with the discharge gear 18 upward. After the tooth unit 201 meshes with the discharge gear 18 to complete the discharge of a group of raw material barrels, it needs to be restored to the initial position (the height position that is not meshed with the discharge gear 18) through the restoration meshing plate 2642, thereby completing the material collection of the raw material barrel once. The upper meshing plate 2641 and the restoring meshing plate 2642 are fixedly connected by a connecting plate 2643, and the outer end of the output end of the cylinder 263 is fixed on the connecting plate 2643. It should be noted that the height and thickness of the upper meshing plate 2641 are the same as the height and thickness of the restoring meshing plate 2642. The upper meshing plate 2641 and the restoring meshing plate 2642 are respectively used to engage the two sides of the driving gear 262, so that the direction of rotation of the driving gear 262 after engaging with the upper meshing plate 2641 is opposite to the direction of rotation after engaging with the restoring meshing plate 2642.

[0042] See Figure 2-4 、 Figure 9In order to allow the material receiving box 8 to receive the raw materials and mix them once in the process of following the rotation of the annular base 6, an arc-shaped guide rod 27 is provided in each group of arc-shaped areas 7. The arc-shaped guide rod 27 passes through the material receiving box 8. The material receiving box 8 is slidably set on the arc-shaped guide rod 27. The two ends of the arc-shaped guide rod 27 are respectively fixed on the connecting partitions 603 on both sides. The arc-shaped guide rod 27 is located on both sides of the material receiving box 8. A balance spring 28 is sleeved, and one end of the balance spring 28 is against the connecting partition 603. , the other end is against the material receiving box 8, an outer arc groove 29 is provided on the annular plate 24, and an anti-rotation plate 30 is provided on one side of the material receiving box 8 to form a sliding connection with the outer arc groove 29. The anti-rotation plate 30 includes a sleeve 301 and a panel 302 slidingly arranged in the sleeve 301. The sleeve 301 is provided with a panel groove 31 for the panel 302 to slide, wherein the panel 302 is located in the panel groove 31. The two sides of the end of the panel 302 are provided with a limiting side rod 33, and the panel groove 31 is provided with a limiting side rod The side rod 33 slides in a limiting groove, and the sleeve plate 301 is provided with an inner spring 32 for driving the panel 302 to slide outward. The inner wall of the annular area 5 is provided with multiple groups of push rods 34 for resisting the anti-rotation plate 30, and the anti-rotation plate 30 is provided with a long inclined surface 35 for resisting the push rod 34. When the annular base 6 rotates until the push rod 34 resists the long inclined surface 35, the receiving box 8 will first compress the balance spring 28 on one side of the arc guide rod 27 and slide a distance until the panel 30 2 slides toward the inside of the sleeve plate 301 and causes the push rod 34 to disengage from the abutment with the long inclined surface 35. At this time, the material receiving box 8 will oscillate under the action of the balance springs 28 on both sides, thereby mixing the raw materials in the material receiving box 8. It should also be noted that the outer end of the panel 302 extends to the outside of the outer ring plate 601, and the inner wall of the annular area 5 is provided with an outer ring groove 36 for the outer end of the panel 302 to slide, wherein the push rod 34 and the long push rod 43 are fixed to the inner wall of the outer ring groove 36.

[0043] See Figure 2 、 4 The cam 37 is provided with a plurality of collars 37 on the straight rod, and a dispersion rod 38 is provided on the outer wall of the straight rod. The outer wall of the straight rod is provided with a wave groove 39, and the inner wall of the collar 37 is provided with a short shaft that slides with the wave groove 39. The outer wall of the collar 37 is provided with an annular groove 40. The inner wall of the collar 37 is provided with a driving rod 41, and one end of the driving rod 41 extends into the annular groove 40. When the material box 8 slides on the arc guide rod 27, the driving rod 41 will push the collar 37 to slide on the support rod 272. Under the cooperation of the wave groove 39 and the short shaft, the collar 37 will rotate forward and backward, so that the dispersion rod 38 stirs the material in the material box 8.

[0044] See Figure 2 、8 , 9. In order to deliver the received raw materials into the mixing drum 1 after the receiving box 8 rotates one circle following the annular base 6, the bottom of the receiving box 8 is through-set, and door panels 42 are hinged on both sides of the through-position of the receiving box 8. The inner wall of the annular area 5 is provided with a long push rod 43 for abutting against the long inclined surface 35 at the feed inlet 2. A door opening linkage assembly 44 is provided on the receiving box 8. After the long push rod 43 abuts against the long inclined surface 35, the door panel 42 is driven to open through the linkage assembly. The length of the long push rod 43 is longer than the push rod 34. After the long push rod 43 abuts against the long inclined surface 35, the inner wall panel will slide deeper into the sleeve plate 301.

[0045] See Figure 2 、 89. When the receiving box 8 follows the annular base 6 and moves to the top of the feeding port 2, the specific method for opening the door panel 42 is as follows: rotating rods 45 are symmetrically provided on both sides of the door panel 42, and the rotating rods 45 pass through the box wall of the receiving box 8 and form a rotating connection. Extension plates 46 are symmetrically provided on both sides of the 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 set on the extension plate 46, and the second bevel gear 443 is fixed to the linkage rod 44 1 and are respectively meshed with the first bevel gears 442 on both sides. Among them, the two groups of second bevel gears 443 in the length direction of the linkage rod 441 are symmetrically arranged and respectively meshed with the side of the two groups of first bevel gears 442 close to each other. After the linkage rod 441 is rotated, the rotation directions of the two groups of door panels 42 can be opposite. An extension rod 47 is axially extended from the second bevel gear 443 at one end. 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 is meshed with the linkage gear 444. The panel 302 is located at the embedded One end of the plate groove 31 is provided with an inclined surface 48 that abuts against the linkage rack 445, wherein 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 panel groove 31, and the abutment rod 34 abuts against the long inclined surface 35 to shorten the distance for the panel 302 to slide into the panel groove 31, and the panel 302 does not contact the linkage rack 445. The long abutment rod 43 abuts against the long inclined surface 35 to drive the panel 302 to slide toward the panel groove 31. A longer distance is made so that the inclined surface 48 of the panel 302 can abut against the linkage rack 445. One end abuts against each other and drives 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. The engagement of the first bevel gear 442 and the second bevel gear 443 can drive the two sets of door panels 42 to rotate downward, so that the raw materials fall from the receiving box 8 into the mixing barrel. It should be noted that: a barrel groove is provided in the rack groove, and a limit plate 49 is provided at the barrel groove of the linkage rack 445. The linkage rack 445 is also provided with an abutment spring 50 that abuts against the limit plate 49. The abutment spring 50 drives the limit plate 49 to move toward one side of the panel groove 31.

[0046] See Figure 2 、 3 , 9, 10, in order to keep the door panel 42 open for a period of time to allow the raw materials to pass through the feed port 2 better (see Figure 3) falls into the mixing drum 1, a stabilizing tooth portion 51 is provided at the outer end of the panel 302, and a stabilizing gear 52 for engaging with the stabilizing tooth portion 51 is rotatably provided on the long push rod 43. The stabilizing gear 52 is rotatably connected to the long push rod 43 through a third one-way bearing 53. When the annular base 6 rotates counterclockwise and the stabilizing tooth portion 51 engages with the stabilizing gear 52, the stabilizing tooth portion 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, thereby preventing the door panel 42 from closing immediately after opening due to the compression of the balance spring 28 on one side by the material receiving box 8.

[0047] See also Figure 1-10 As shown, when the device is in use, various raw materials for making fluorescent materials are placed in different raw material barrels 4 respectively, and the height position of the meshing plate 264 is adjusted first according to the required proportion of each group of raw materials. During debugging, the meshing plate 264 is driven downward by the cylinder 263 corresponding to the position of the raw material barrel 4. After adjusting the meshing plate 264 corresponding to each group of raw material barrels 4, the motor 9 can be driven to reverse. The motor 9 reverses and drives the annular base 6 to rotate through the fixed rod 11. After the annular base 6 rotates, the several groups of driving gears 262 corresponding to the arc-shaped tooth portion will first pass through the upward meshing plate 2641 and rotate forward, thereby driving the screw 261 to rotate forward. The rotation of the screw 261 drives the corresponding tooth unit 201 to move up to a height that can mesh with the discharge gear 18. The annular base 6 continues to rotate counterclockwise, so that part of the tooth unit 201 is engaged with the discharge gear 18. The gear 18 meshes and drives the discharging gear 18 to rotate. The rotation of the discharging gear 18 will drive the auger 19 to rotate, so that the raw material in the raw material barrel 4 falls into the receiving box 8. After the receiving box 8 receives the raw materials in a group of raw material barrels, it continues to rotate with the annular base 6, and then the driving gear 262 that was previously engaged with the upward meshing plate 2641 is engaged with the recovery meshing plate 2642, so that the driving gear 262 rotates counterclockwise, thereby driving the previously ascending tooth unit 201 to move down to the initial position, and then re-engage with the next group of upward meshing plates 2641. After the driving gear 262 is engaged with the next group of upward meshing plates 2641, it is engaged with the discharging gear 18 again to complete the discharging of the next raw material barrel 4 and the receiving of the material in the receiving box 8, and then the driving gear 262 is engaged with the recovery meshing plate 2642 again to restore to the initial position, and the cycle is repeated.

[0048] When the material receiving box 8 is located below each set of meshing plates 264, the push rod 34 in the annular area 5 will collide with the long inclined surface 35 of the panel 302 on the material receiving box 8. When the panel 302 collide with the push rod 34, the material receiving box 8 will first compress the balance spring 28 on the arc guide rod 27 and slide a distance until the panel 302 slides a distance into the panel groove 31 and disengages from the collision with the push rod 34. Under the action of the balance spring 28, the material receiving box 8 will oscillate back and forth on the arc guide rod 27, so that the raw materials in the material receiving box 8 can be mixed; in the process of the material receiving box 8 oscillating and sliding on the arc guide rod 27, the driving rod 41 follows the material receiving box 8 to move and push the collar 37 to move on the support rod 272, and through the cooperation of the wave groove 39 and the short shaft, the dispersion rod 38 stirs the raw materials in the material receiving box 8, so that the raw materials are better mixed.

[0049] When the material receiving box 8 rotates one circle following the annular base 6 and is located at the feeding port 2 position on the mixing drum 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 by meshing with the linkage gear 444. The rotation of the linkage rod 441 will drive the two sets of door panels 42 to rotate downward through the meshing of the first bevel gear 442 and the second bevel gear 443, thereby opening the bottom of the material receiving box 8. At the same time, the stabilizing tooth portion 51 on the outside of the panel 302 will mesh with the stabilizing gear 52 for a period of time, causing the door panel 42 to open for a period of time, thereby allowing the raw materials in the material receiving box 8 to fall into the interior of the mixing drum 1. After the mixing drum 1 completes the material receiving, solvent can be added to the mixing drum 1 through the liquid inlet pipe (not shown in the figure), and then the motor 9 is rotated forward to perform mixing.

[0050] Example 2

[0051] A method for preparing a fluorescent material for a backlight display comprises the following steps: Step 1, pouring a plurality of raw materials required for manufacturing the fluorescent material for a backlight display into a plurality of groups of raw material cylinders 4 respectively;

[0052] Step 2: The motor 9 rotates in reverse to drive the annular base 6 to rotate. According to the required ratio of each raw material, the corresponding number of gear units 201 are driven upward by the drive assembly 26. After the arc-shaped teeth pass through the mixing barrel, they are meshed with the discharge gear 18 through the upward-moving gear unit 201. Each group of mixing barrels drops the raw materials into the receiving box 8 according to the required ratio of the raw materials.

[0053] Step 3: After the annular base 6 rotates one circle, the bottom of the material receiving box 8 is opened when it is above the feed port 2, allowing the raw materials to fall into the mixing barrel 1 through the feed port 2. The motor 9 rotates forward, driving the stirring blade 15 to rotate and stir the raw materials. After mixing, the raw materials are discharged through the bottom valve.

[0054] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends", etc., indicating orientations or positional relationships, are orientations or positional relationships based on the accompanying drawings, and 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, and therefore should not be understood as limiting the present invention.

[0055] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0056] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which 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 drum with a feed port at the top thereof, characterized in that: An annular support frame is also provided on the top of the mixing drum, and multiple groups of raw material drums are evenly provided on the circumference of the annular support frame. The annular support frame is located below the raw material drum to form an annular area. 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. The outer ring plate and the inner ring plate are coaxially arranged and connected and fixed to each other by multiple groups of connecting partitions. The outer ring plate and the inner ring plate are divided into multiple groups of arc areas by multiple groups of connecting partitions. A material receiving box is provided in each group of arc areas. A motor is provided on the top of the mixing drum, and a long rod is fixed to the output end of the motor. 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, the bottom end of the rotating shaft extends below the discharge port and is provided with a discharge gear, and the portion 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 at each arc-shaped area for meshing with the discharge gear. The arc-shaped tooth portion is composed of multiple groups of tooth units. Each group of tooth units is independently slidable up and down on the inner ring plate. The annular base is provided with a driving assembly for driving each group of tooth units to slide. 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 tooth portion 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 corresponding to the tooth unit. 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. The multiple screws matched with a group of arc-shaped teeth gradually become longer from one side to the other side. The output end of the cylinder is fixedly connected to the meshing plate and drives the meshing plate to move up and down. The engaging plate includes an upward engaging plate and a restoring engaging plate. The upward engaging plate and the restoring engaging plate are respectively used to engage with the two sides of the driving gear. After the upward engaging plate engages with the driving gear, the tooth unit is driven upward. After the restoring engaging plate engages with the driving gear, the tooth unit is driven downward. The upward engaging plate and the restoring engaging plate are fixedly connected by a connecting plate, and the outer end of the cylinder output end is fixed on the connecting plate.

2. 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 support 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 to a stirring blade, and 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.

3. The raw material mixing device for preparing fluorescent materials for backlight display according to claim 1, characterized in that: The cam is secured to the chassis and has two ends secured to the chassis, each of which has a cam face and a cam which allows the chassis to move freely in the chassis, thereby ensuring that the chassis can move smoothly and that the chassis is in a state of equilibrium.

4. The raw material mixing device for preparing fluorescent materials for backlight display according to claim 3, 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 push rod for resisting the long inclined surface. The material receiving box is provided with a door opening linkage assembly, and after the long push rod resists the long inclined surface, the door panel is driven to open through the door opening linkage assembly.

5. The raw material mixing device for preparing fluorescent materials for backlight display according to claim 4, characterized in that: The first gear is connected with the gear train of the driven gear and the gear is engaged with the gear of the driven gear and the gear is engaged with the gear of the driven gear.

6. The raw material mixing device for preparing fluorescent materials for backlight display according to claim 5, characterized in that: The outer end of the panel is provided with a stabilizing tooth portion, and the long rod is rotatably provided with a stabilizing gear for engaging with the stabilizing tooth portion. The stabilizing gear is rotatably connected to the long rod through a third one-way bearing.

7. The raw material mixing device for preparing fluorescent materials for backlight display according to claim 3, 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 provided on the outer wall. 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 ring. An annular groove is provided 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.

8. A method for preparing a fluorescent material for backlight display, comprising the raw material mixing device for preparing a fluorescent material for backlight display according to any one of claims 1 to 7, characterized in that: The following steps are involved: Step 1: Pour 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 the corresponding number of gear units are driven upward by the drive assembly according to the required ratio of each raw material, so that the arc-shaped teeth pass through the mixing barrel and engage with the discharge gear through the upward-moving gear unit, so that each group of mixing barrels drops the raw materials into the receiving box according to the required ratio 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 mix the raw materials. After mixing is completed, the raw materials are discharged through the bottom valve.

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