A shredding device for recycling computer monitor LCD screens

Abstract

This invention discloses a shredding device for recycling computer monitor LCD screens, comprising a mounting frame, a drive unit, a first shredding assembly, a second shredding assembly, and a particle refining chamber. The drive unit is fixed to the mounting frame, and its output end is coaxially fixed to a synchronous shaft. One end of the synchronous shaft provides power to the first shredding assembly via a first transmission assembly, and the other end provides power to the second shredding assembly via a second transmission assembly. The material is processed sequentially by the first and second shredding assemblies before entering the particle refining chamber for further refining; alternatively, the material is directly processed by the second shredding assembly before entering the particle refining chamber for further refining. Furthermore, hard particles, the volume of which is smaller than the volume of the material to be processed, are continuously added to the second shredding assembly.

Description

Technical Field

[0001] This invention relates to the field of recycling and shredding technology, specifically a shredding device for recycling computer monitor LCD screens. Background Technology

[0002] Computer monitor LCD screens include plastic frames, polarizers, front glass, back glass, and other components. When recycling LCD screens, they need to be disassembled, and the components need to be classified by type and then processed separately. When processing the plastic frame, a shredder or crusher is needed to break it down for further processing. Existing shredders are not very effective at breaking down plastic frames into fine particles, which affects the reprocessing effect (including hydrogenation, chemical reduction, etc.).

[0003] Therefore, it is necessary to provide a shredding device for recycling computer monitor LCD screens to solve the problems mentioned in the background art. Summary of the Invention

[0004] To achieve the above objectives, the present invention provides the following technical solution: a shredding device for recycling computer monitor LCD screens, comprising a mounting frame, a drive unit, a first shredding assembly, a second shredding assembly, and a particle refining chamber, wherein the drive unit is fixed on the mounting frame, and a synchronous shaft is coaxially fixed to its output end; one end of the synchronous shaft provides power to the first shredding assembly through a first transmission assembly, and the other end provides power to the second shredding assembly through a second transmission assembly;

[0005] Furthermore, after being processed by the first and second shredding components, the material enters the particle refining chamber for further refining.

[0006] Alternatively, the material can be directly processed by the second crushing component and then enter the particle refining chamber for further refining;

[0007] Furthermore, hard particles are continuously added to the second shredding component, and the volume of the hard particles is smaller than the volume of the material to be processed.

[0008] Furthermore, preferably, the synchronous shaft is rotatably mounted on the mounting bracket;

[0009] The first transmission assembly and the second transmission assembly have the same structure, both including a transmission chamber, a transmission wheel and a transmission belt. The transmission chamber is fixed on the mounting frame. The transmission wheel is rotatably arranged in the transmission chamber. The transmission wheel is connected to the drive wheel through the transmission belt. The drive wheel is coaxially fixed on the synchronous shaft.

[0010] Furthermore, the rotational speed of the transmission wheel in the first transmission assembly is less than the rotational speed of the transmission wheel in the second transmission assembly.

[0011] Furthermore, as a preferred embodiment, the first shredding assembly includes a first shredding bin, a first shredding roller, and a first feed inlet, wherein the first shredding roller is rotatably mounted on the mounting frame, and one end of the first shredding roller is coaxially and fixedly connected to the transmission wheel in the first transmission assembly, and the first shredding bin, which is fixed on the mounting frame, is sleeved on the outside of the first shredding roller.

[0012] The first feed inlet is connected to one side of the first shredding chamber.

[0013] Furthermore, as a preferred embodiment, the second shredding assembly includes a second shredding bin, a second shredding roller, and a second feed inlet, wherein the second shredding roller is rotatably mounted on the mounting frame, and one end of the second shredding roller is coaxially and fixedly connected to the transmission wheel in the second transmission assembly, and the second shredding bin, which is fixed on the mounting frame, is sleeved on the outside of the second shredding roller.

[0014] The second shredding chamber has a second feed inlet on one side, and the other end of the second shredding chamber is connected to the first shredding chamber by a connecting pipe.

[0015] Furthermore, preferably, the gap between the first shredding roller and the first shredding chamber is greater than the gap between the second shredding roller and the second shredding chamber;

[0016] Furthermore, the interval between adjacent shredding teeth on the first shredding roller is greater than the interval between adjacent shredding teeth on the second shredding roller.

[0017] Furthermore, as a preferred embodiment, both the first and second shredding chambers are inclined, and their inclination directions are opposite, wherein the first shredding chamber is inclined downward toward the connecting pipe.

[0018] Furthermore, as a preferred embodiment, the discharge end of the second shredding chamber is connected to the particle refining chamber through the discharge chamber. The particle refining chamber is fixedly embedded in the support chamber. The particle refining chamber is provided with a particle refining component, a separation plate, a discharge port, and a recovery port. The separation plate is inclinedly arranged in the lower space of the particle refining chamber. The separation plate can separate smaller particles to the recovery port and send them back to the second feed port through the recovery port. It can also separate larger particles to the discharge port.

[0019] Furthermore, as a preferred embodiment, the particle refining component includes a geared motor, a telescopic arm, a flow guide chamber, a particle refining plate, and a material blocking plate. The flow guide chamber is connected to the discharge end of the discharge chamber. Two particle refining plates are disposed in the flow guide chamber. The particle refining plates are fixed to the output end of the telescopic arm. The other end of the telescopic arm passes through the flow guide chamber and is connected to the output end of the geared motor. The discharge end of the flow guide chamber is connected to the material blocking plate by an elastic element. The upper surface of the material blocking plate is evenly distributed with multiple flexible protrusions, and the flexible protrusions are misaligned with the through holes of the material blocking plate and are in contact with the particle refining plate.

[0020] Furthermore, preferably, the refining teeth on the two particle refining plates are staggered, and the two particle refining plates rotate in opposite directions.

[0021] Furthermore, as a preferred embodiment, the recycling port is connected to the feed port through a recycling pipe, and a vacuum cleaner is installed on the recycling pipe. The vacuum cleaner is activated intermittently to absorb powdery particles.

[0022] Compared with the prior art, the present invention provides a shredding device for recycling computer monitor LCD screens, which has the following beneficial effects:

[0023] 1. In this device, the drive unit can drive the synchronous shaft to rotate. One end of the synchronous shaft provides power to the first shredding assembly through the first transmission assembly, and the other end provides power to the second shredding assembly through the second transmission assembly. Moreover, the rotational speed of the transmission wheel in the first transmission assembly is less than the rotational speed of the transmission wheel in the second transmission assembly, thereby achieving structural optimization of the power transmission of the shredding assembly and improving the shredding efficiency.

[0024] 2. In this device, the material is processed sequentially by the first and second shredding components before entering the particle refining chamber for further refining; or the material is directly processed by the second shredding component before entering the particle refining chamber for further refining, thus enabling targeted processing based on the actual condition of the plastic frame of the LCD screen; and, hard particles are continuously added to the second shredding component. The volume of the hard particles is smaller than that of the material to be processed. The hard particles can play an auxiliary role in the second shredding component and the particle refining component. Through the hard particles, the overall shredding efficiency can be improved. The mutual compression between the hard particles and the crushed plastic improves the shredding effect, which is beneficial for the subsequent further recycling of the plastic.

[0025] 3. By cooperating with the telescopic arm and the particle refining plate, the distance between the two particle refining plates can be controlled, ensuring the particle size after refining. Qualified particles can fall from the retaining plate, while unqualified particles will remain on the retaining plate. Furthermore, the upper surface of the retaining plate is evenly distributed with multiple flexible protrusions, which are offset from the through holes of the retaining plate and in contact with the particle refining plate. When the particle refining plate rotates, it will contact the flexible protrusions, driving the retaining plate to vibrate. This vibration can prevent the material from accumulating on the retaining plate and can also lift unqualified particles, causing them to re-enter between the two particle refining plates for further processing. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 for Figure 1 A magnified schematic diagram of the upper part of the structure;

[0028] Figure 3 for Figure 1 A schematic diagram of the enlarged lower half of the structure;

[0029] Figure 4 This is a schematic diagram of the structure of the resist plate in this invention;

[0030] In the diagram: 1. Mounting frame; 2. Drive unit; 3. Synchronous shaft; 4. First transmission assembly; 5. First shredding assembly; 6. Second transmission assembly; 7. Second shredding assembly; 8. Discharge bin; 9. Granulation bin; 10. Support bin; 11. Separation plate; 12. Discharge port; 13. Recycling port; 14. Connecting pipe; 15. Gear motor; 16. Telescopic arm; 17. Guide bin; 18. Granulation plate; 19. Material blocking plate; 41. Transmission bin; 42. Transmission wheel; 43. Transmission belt; 51. First shredding bin; 52. First shredding roller; 53. First feed inlet; 71. Second shredding bin; 72. Second shredding roller; 73. Second feed inlet. Detailed Implementation

[0031] Please see Figures 1-4 In this embodiment of the invention, a shredding device for recycling a computer monitor LCD screen includes a mounting frame 1, a drive unit 2, a first shredding assembly 5, a second shredding assembly 7, and a particle refining chamber 9. The drive unit 2 is fixed on the mounting frame 1, and a synchronous shaft 3 is coaxially fixed to its output end. One end of the synchronous shaft 3 provides power to the first shredding assembly 5 through a first transmission assembly 4, and the other end provides power to the second shredding assembly 7 through a second transmission assembly 6.

[0032] Furthermore, after being processed by the first shredding component 5 and the second shredding component 7, the material enters the particle refining chamber 9 for further refining.

[0033] Alternatively, the material can be directly processed by the second crushing component 7 and then enter the particle refining chamber 9 for further refining;

[0034] Furthermore, hard particles are continuously added to the second shredding component 7, and the volume of the hard particles is smaller than the volume of the material to be processed.

[0035] In this embodiment, the synchronous shaft 3 is rotatably mounted on the mounting bracket 1;

[0036] The first transmission assembly and the second transmission assembly have the same structure, both including a transmission chamber 41, a transmission wheel 42 and a transmission belt 43. The transmission chamber 41 is fixed on the mounting frame 1. The transmission wheel 42 is rotatably arranged in the transmission chamber 41. The transmission wheel 42 is connected to the drive wheel through the transmission belt 43. The drive wheel is coaxially fixed on the synchronous shaft 3.

[0037] Furthermore, the rotational speed of the transmission wheel 42 in the first transmission assembly is less than that of the transmission wheel 42 in the second transmission assembly. Specifically, the rotational speed can be adjusted by limiting the diameter of the transmission wheel 42.

[0038] In this embodiment, the first shredding assembly 5 includes a first shredding bin 51, a first shredding roller 52 and a first feed inlet 53. The first shredding roller 52 is rotatably mounted on the mounting frame 1, and one end of the first shredding roller 52 is coaxially and fixedly connected to the transmission wheel 42 in the first transmission assembly 4. The first shredding bin 51, which is fixed on the mounting frame 1, is sleeved on the outside of the first shredding roller 52.

[0039] The first feed inlet 53 is connected to one side of the first shredding chamber 51.

[0040] In this embodiment, the second shredding assembly 7 includes a second shredding bin 71, a second shredding roller 72, and a second feed inlet 73. The second shredding roller 72 is rotatably mounted on the mounting frame 1, and one end of the second shredding roller 72 is coaxially and fixedly connected to the transmission wheel 42 in the second transmission assembly 6. The second shredding bin 71, which is fixed on the mounting frame 1, is sleeved on the outside of the second shredding roller 72.

[0041] The second shredding chamber 71 has a second feed inlet 73 connected to one side, and the other end of the second shredding chamber 71 is connected to the first shredding chamber 51 by a connecting pipe 14.

[0042] In a preferred embodiment, the gap between the first shredding roller 52 and the first shredding chamber 51 is greater than the gap between the second shredding roller 72 and the second shredding chamber 71.

[0043] Furthermore, the interval between adjacent shredding teeth on the first shredding roller 52 is greater than the interval between adjacent shredding teeth on the second shredding roller 72, thereby enabling step-by-step shredding. More preferably, the gap between the first shredding roller 52 and the first shredding chamber 51 gradually increases from left to right, and the gap between the second shredding roller 72 and the second shredding chamber 71 gradually decreases from left to right.

[0044] In a preferred embodiment, both the first shredding chamber 51 and the second shredding chamber 71 are inclined, and their inclination directions are opposite. The first shredding chamber 51 is inclined downward toward the connecting pipe 14.

[0045] In this embodiment, as Figure 3 The discharge end of the second shredding chamber 71 is connected to the particle refining chamber 9 via the discharge chamber 8. The particle refining chamber 9 is fixedly embedded in the support chamber 10. The particle refining chamber 9 is equipped with a particle refining component, a separation plate 11, a discharge port 12, and a recovery port 13. The separation plate 11 is inclinedly arranged in the lower space of the particle refining chamber 9. The separation plate 11 can separate smaller particles to the recovery port 13 and send them back to the second feed port 73 through the recovery port 13. It can also separate larger particles to the discharge port 12. The recovery port 13 is connected to the feed port 73 via a recovery pipe 13. A vacuum cleaner is provided, which operates intermittently to absorb powdery particles. It should be explained that the smaller particles include hard particles fed from the second feed inlet 73 and plastic particles formed after the plastic of the LCD screen outer frame is crushed in this device. The hard particles and plastic particles can be cyclically fed into the second feed inlet 73. The hard particles can play an auxiliary role in the second crushing component 7 and the particle refining component. The hard particles can improve the overall crushing efficiency. The crushing effect is improved by the mutual compression between the hard particles and the crushed plastic. Some plastic particles will form smaller particles, which can be recycled by the vacuum cleaner.

[0046] In this embodiment, the particle refining component includes a reduction motor 15, a telescopic arm 16, a flow guide chamber 17, particle refining plates 18, and a blocking plate 19. The flow guide chamber 17 is connected to the discharge end of the discharge chamber 8. Two particle refining plates 18 are disposed in the flow guide chamber 17. The particle refining plates 18 are fixed to the output end of the telescopic arm 16. The other end of the telescopic arm 16 passes through the flow guide chamber 17 and is connected to the output end of the reduction motor 15. The discharge end of the flow guide chamber 17 is connected to the blocking plate 19 by an elastic element. Multiple flexible protrusions are evenly distributed on the upper surface of the blocking plate 19, and the flexible protrusions are misaligned with the through holes of the blocking plate 19 and contact the particle refining plates 18. The particle refining component is connected to the discharge end of the discharge chamber 8 by the telescopic arm 16. The cooperation between plate 6 and particle refining plate 18 can control the distance between the two particle refining plates 18, ensuring the particle size after refining. Qualified particles can fall from the material blocking plate 19, while unqualified particles will continue to remain on the material blocking plate 19. Furthermore, multiple flexible protrusions are evenly distributed on the upper surface of the material blocking plate 19, and the flexible protrusions are misaligned with the through holes of the material blocking plate 19 and in contact with the particle refining plate 18. When the particle refining plate 18 rotates, it will contact the flexible protrusions and drive the material blocking plate 19 to oscillate. This oscillation can prevent the material from accumulating on the material blocking plate and can lift unqualified particles so that they re-enter between the two particle refining plates 18 for further processing.

[0047] In a preferred embodiment, the refining teeth on the two particle refining plates are staggered, and the two particle refining plates rotate in opposite directions.

[0048] In practice, the plastic frame of the LCD screen to be processed is cut into large pieces and fed into the first shredding chamber 51 through the first feed port 53. After being processed by the first shredding chamber 51, it enters the second shredding chamber 71 through the connecting pipe 14. Alternatively, appropriately sized pieces can be directly fed into the second shredding chamber 71 through the second feed port 73. Hard particles are continuously fed into the second feed port 73. After being processed by the second shredding chamber 71, the material enters between the two particle refining plates 18 through the discharge chamber 8 for further refining and discharge. Qualified material falls onto the separation plate 11 through the baffle plate 19 and is collected through the discharge port 12. Smaller particles are separated by the separation plate 11 and sent to the recycling port 13 for recycling.

[0049] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A shredding device for recycling liquid crystal screens of computer displays, characterized in that: The application relates to a material processing device, which comprises a mounting frame (1), a driving part (2), a first crushing assembly (5), a second crushing assembly (7) and a particle refining bin (9), the driving part (2) is fixed on the mounting frame (1), the output end of the driving part (2) is coaxially fixed with a synchronous shaft (3), one end of the synchronous shaft (3) provides power for the first crushing assembly (5) through a first transmission assembly (4), and the other end of the synchronous shaft (3) provides power for the second crushing assembly (7) through a second transmission assembly (6); The material body is sequentially processed by the first crushing assembly (5) and the second crushing assembly (7) and then enters the particle refining bin (9) for further refining, or the material body is directly processed by the second crushing assembly (7) and then enters the particle refining bin (9) for further refining; Hard particles are continuously added in the second crushing assembly (7), and the volume of the hard particles is smaller than that of the material body to be processed; The synchronous shaft (3) is rotationally arranged on the mounting frame (1); The first transmission assembly and the second transmission assembly are the same in structure and both comprise a transmission bin (41), a transmission wheel (42) and a transmission belt (43), the transmission bin (41) is fixed on the mounting frame (1), the transmission wheel (42) is rotationally arranged in the transmission bin (41), the transmission wheel (42) is connected with a driving wheel in transmission through the transmission belt (43), and the driving wheel is coaxially fixed on the synchronous shaft (3); The rotating speed of the transmission wheel (42) in the first transmission assembly is smaller than that of the transmission wheel (42) in the second transmission assembly; The first crushing assembly (5) comprises a first crushing bin (51), a first crushing roller (52) and a first feeding port (53), the first crushing roller (52) is rotationally arranged on the mounting frame (1), one end of the first crushing roller (52) is coaxially fixedly connected with the transmission wheel (42) in the first transmission assembly (4), and the outside of the first crushing roller (52) is sleeved with the first crushing bin (51) fixed on the mounting frame (1); One side of the first crushing bin (51) is communicated with the first feeding port (53); The second crushing assembly (7) comprises a second crushing bin (71), a second crushing roller (72) and a second feeding port (73), wherein the second crushing roller (72) is rotationally arranged on the mounting frame (1), one end of the second crushing roller (72) is coaxially fixedly connected with the transmission wheel (42) in the second transmission assembly (6), and the outside of the second crushing roller (72) is sleeved with the second crushing bin (71) fixed on the mounting frame (1); One side of the second crushing bin (71) is communicated with the second feeding port (73), and the other end of the second crushing bin (71) is communicated with the first crushing bin (51) through a communicating pipe (14). The discharge end of the second mincing bin (71) is connected with the particle refining bin (9) through the discharge bin (8), the particle refining bin (9) is fixedly embedded in the support bin (10), the particle refining bin (9) is provided with a particle refining assembly, a separation plate (11), a discharge port (12) and a recovery port (13), the separation plate (11) is obliquely arranged in the lower space of the particle refining bin (9), the separation plate (11) can separate smaller volume particles to the recovery port (13) and send them back to the second feeding port (73) through the recovery port (13), and can separate larger volume particles to the discharge port (12); The particle refining assembly comprises a speed reducer (15), a telescopic arm (16), a flow guide bin (17), a particle refining plate (18) and a blocking plate (19), the flow guide bin (17) is connected with the discharge end of the discharge bin (8), two particle refining plates (18) are arranged in the flow guide bin (17), the particle refining plates (18) are fixed on the output end of the telescopic arm (16), the other end of the telescopic arm (16) penetrates through the flow guide bin (17) and is connected with the output end of the speed reducer (15), the discharge end of the flow guide bin (17) is connected with the blocking plate (19) through an elastic member, the upper surface of the blocking plate (19) is uniformly provided with a plurality of flexible protrusions, the flexible protrusions are arranged in a staggered manner with the through holes of the blocking plate (19) and are in contact with the particle refining plates (18).

2. A shredding device for recycling computer monitor liquid crystal screens according to claim 1, characterized in that: The gap between the first mincing roller (52) and the first mincing bin (51) is greater than the gap between the second mincing roller (72) and the second mincing bin (71); The interval between adjacent mincing teeth on the first mincing roller (52) is greater than the interval between adjacent mincing teeth on the second mincing roller (72).

3. A shredding device for recycling computer monitor liquid crystal screens according to claim 1, characterized in that: The first mincing bin (51) and the second mincing bin (71) are both inclined, and the inclination directions of the two are opposite, the first mincing bin (51) is inclined downward toward the communication pipe (14).

4. A shredding device for recycling computer monitor liquid crystal screens according to claim 1, characterized in that: The refining teeth on the two particle refining plates (18) are staggered, and the rotation directions of the two particle refining plates (18) are opposite.

5. A shredding device for recycling liquid crystal screens of computer displays according to claim 1, characterized in that: The recovery port (13) is connected with the second feeding port (73) through a recovery pipe, a dust collector is arranged on the recovery pipe, the dust collector is started at intervals and is used for absorbing powdery particles.

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