A gallium nitride chip production waste recycling device

Abstract

The utility model relates to gallium nitride chip waste recovery production technical field, and disclose a kind of gallium nitride chip production waste recovery device, including rack, the upper end of rack is equipped with speed reducer and shell, the lower end of rack is equipped with first motor, the inside rotation of shell is connected with two groups of crushing roller, the inner bottom of rack is provided with second collecting box, the outside of second collecting box is equipped with handle, the lower end of rack is also equipped with collecting box, the upper end of collecting box is provided with feed inlet, and the inside of collecting box is provided with screening structure.The utility model is screened to the mixed material by being equipped with screening structure, fine particle is shaken out and falls into the second collecting box below, and larger particle is effectively intercepted in screening structure inside, so that the sorting of particle size is completed before collection, improve the uniformity of recovery material, avoid subsequent secondary sorting process.

Description

Technical Field

[0001] This utility model relates to the field of gallium nitride chip waste recycling technology, specifically a gallium nitride chip production waste recycling device. Background Technology

[0002] Gallium nitride (GaN) chip manufacturing refers to the process of producing electronic devices based on gallium nitride materials on a specific substrate through a series of complex semiconductor processes. Gallium nitride chip waste recycling is used to efficiently, economically, and environmentally "extract" the highly valuable metal "gallium" and other useful materials from various wastes generated during the gallium nitride chip manufacturing process. In the process of gallium nitride chip waste recycling, crushers are needed to crush the gallium nitride chips.

[0003] In existing technologies, gallium nitride chips are typically mechanically crushed using crushing rollers. The crushed material falls directly into a collection box at the bottom of the equipment for centralized storage. However, the particle size distribution of the crushed particles is uneven, failing to achieve effective particle size separation. Larger particles are mixed with qualified fine particles and cannot be separated before collection. This not only reduces the uniformity of the crushed products but may also adversely affect subsequent processing steps. Utility Model Content

[0004] The purpose of this invention is to provide a gallium nitride chip manufacturing waste recycling device to solve the problem that the particles generated after crushing have uneven particle size distribution, which fails to achieve effective particle size sorting, and larger particles are mixed with qualified fine particles, making it impossible to separate them before collection.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a gallium nitride chip manufacturing waste recycling device, comprising a frame, a reducer and a housing mounted on the upper end of the frame, a first motor mounted on the lower end of the frame, two sets of crushing rollers rotatably connected inside the housing, a second collection box located at the inner bottom of the frame, a handle mounted on the outer side of the second collection box, and a collection container mounted on the lower end of the frame. The collection container has an inlet at its upper end and a screening structure inside. The screening structure includes a mounting plate inside the collection container, and the first collection box is mounted on the lower end of the mounting plate via a connecting assembly. The outer surface of the first collection box... The first collection box has several screening holes. The connecting assembly includes a connecting block fixedly installed at the lower end of the mounting plate. The lower end of the connecting block has a sliding groove, and a cover plate is installed at the lower end of the connecting block. The cover plate has a through opening in the middle. Two limiting blocks are slidably connected in the sliding groove. Each of the two limiting blocks has a lever at its lower end. Both levers are located inside the through opening. A first spring is installed between the two limiting blocks. Both ends of the first collection box have side plates. The upper ends of both side plates have mounting holes. The two connecting blocks are located in the corresponding mounting holes. The outer side of the limiting block is in contact with the outer side of the side plate.

[0006] Furthermore, guide slopes are provided on the outer sides of both limiting blocks, and a baffle plate is engaged at the lower end of the cover plate, with the baffle plate located between the two toggle blocks.

[0007] Furthermore, the mounting plate has an inlet in the middle, and the first collection box has a diversion block inside.

[0008] Furthermore, a first driving wheel is installed at the output end of the first motor, and a first driven wheel is installed at the input end of the reducer. The first driving wheel and the first driven wheel are connected by a belt. Gears are installed on the outer surfaces of both sets of crushing rollers, and the two sets of gears are meshed together. The output end of the reducer is connected to one of the sets of crushing rollers.

[0009] Furthermore, a back plate is installed on one side of the collection box, a connecting plate is fixedly installed on the inner wall of the collection box, a connecting rod is slidably connected to the middle of the connecting plate, a top plate is installed at the upper end of the connecting rod, a bottom plate is installed at the lower end of the connecting rod, the bottom plate is fixedly installed on the upper end of the mounting plate, and a second spring is sleeved on the outer side of the connecting rod. One end of the second spring is connected to the upper end of the bottom plate, and the other end of the second spring is connected to the lower end of the connecting plate.

[0010] Furthermore, a rotating shaft is rotatably connected to the inner wall of the collection box. One end of the rotating shaft passes through the collection box and is equipped with a second driven wheel. A second motor is provided on the outer side of the collection box. A second driving wheel is installed at the output end of the second motor. The second driving wheel and the second driven wheel are connected by a belt. A cam is fixedly installed on the outer side of the rotating shaft. The cam is located above the top plate.

[0011] This utility model has the following beneficial effects: (1) The second motor drives the second active wheel to rotate, and drives the second driven wheel and the shaft to rotate through the belt. The cam fixed on the shaft rotates and periodically hits the top plate. The top plate is forced to move downward. Through the connecting rod, it pushes the bottom plate and the screening structure to move downward against the elastic force of the second spring. When the cam passes the impact point, the second spring releases elastic potential energy and pushes the bottom plate to reset upward, so that the screening structure box rises accordingly. This forms a continuous high-frequency low-amplitude vibration. Under this vibration, the mixed materials in the screening structure jump continuously. Fine particles are shaken out and fall into the second collection box below, while larger particles are effectively trapped inside the screening structure. Thus, the particle size is sorted before collection, improving the uniformity of the recovered material and avoiding the subsequent secondary sorting process.

[0012] (2) This utility model removes the cover plate to expose the internal push block, and then presses the push blocks on both sides inward at the same time. The push block drives the limit block connected to it to slide in opposite directions in the slide groove and compresses the first spring, so that the guide slope on the outside of the limit block contracts and gets out of the constraint of the side plate. Then the first collection box can be moved vertically downward as a whole, so that the connecting block can be completely removed from the mounting hole on the side plate, thereby separating the first collection box from the bottom of the mounting plate, realizing the quick disassembly of the first collection box, which is convenient for directly cleaning the large particles trapped in the first collection box or for maintenance, and significantly improving the convenience of maintenance.

[0013] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of the present utility model. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of the present utility model. Figure 2 ; Figure 3 This is a schematic diagram of the overall structure of the present utility model. Figure 3 ; Figure 4 This is a schematic cross-sectional view of the outer shell and collection box structure of this utility model; Figure 5 This is a schematic diagram of the screening structure of this utility model; Figure 6 This is an exploded view of the mounting plate and connecting components of this utility model; The attached diagram lists the components represented by each number as follows: In the diagram: 1. Frame; 2. Reducer; 3. Housing; 4. First motor; 5. Crushing roller; 6. Second collection box; 7. Handle; 8. Collection box; 9. Screening structure; 901. Mounting plate; 902. Connecting assembly; 9021. Connecting block; 9022. Cover plate; 9023. Limiting block; 9024. Pulley; 9025. First spring; 903. First collection box; 9031. Side plate; 904. Baffle plate; 905. Diverting block; 10. First driving wheel; 11. First driven wheel; 12. Gear; 13. Back plate; 14. Connecting plate; 15. Connecting rod; 16. Top plate; 17. Bottom plate; 18. Second spring; 19. Shaft; 20. Second driven wheel; 21. Second motor; 22. Second driving wheel; 23. Cam; 24. Housing; 25. Cover; 26. Exhaust pipe. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figures 1-6As shown, this utility model is a gallium nitride chip production waste recycling device, including a frame 1. A reducer 2 and a housing 3 are installed at the upper end of the frame 1, and a first motor 4 is installed at the lower end of the frame 1. Two sets of crushing rollers 5 are rotatably connected inside the housing 3. A second collection box 6 is provided at the inner bottom of the frame 1, and a handle 7 is installed on the outer side of the second collection box 6. A collection bin 8 is also installed at the lower end of the frame 1. The upper end of the collection bin 8 has a feed inlet, and the inside of the collection bin 8 is provided with a screening structure 9. The screening structure 9 includes a mounting plate 901 installed inside the collection bin 8. The lower end of the mounting plate 901 is connected to a first collection box 903 via a connecting assembly 902. The outer surface of the first collection box 903 has several screening holes. 902 includes a connecting block 9021 fixedly installed at the lower end of the mounting plate 901. The lower end of the connecting block 9021 is provided with a sliding groove. A cover plate 9022 is installed at the lower end of the connecting block 9021. A through opening is provided in the middle of the cover plate 9022. Two limiting blocks 9023 are slidably connected in the sliding groove. Each of the two limiting blocks 9023 is provided with a lever 9024 at its lower end. Both levers 9024 are located inside the through opening. A first spring 9025 is installed between the two limiting blocks 9023. Both ends of the first collection box 903 are provided with side plates 9031. Each of the two side plates 9031 is provided with a mounting hole at its upper end. The two connecting blocks 9021 are located in the corresponding mounting holes. The outer side of the limiting block 9023 is in contact with the outer side of the side plate 9031. The upper end of the frame is also fixedly installed with a housing 24. The reducer 2 and the housing 3 are both located inside the housing 24. One side of the housing 24 is connected to an exhaust pipe 26. The upper end of the housing 24 is hinged to a cover 25. The other end of the exhaust pipe 26 is fixedly installed with a gas purification and separation device (not shown in the figure) for collecting and purifying the gas generated during crushing. For details on the composition and working principle of the gas purification and separation device, please refer to the announcement number "CN222816494U Gas purification and separation device for easy dust collection". Specifically, when it is necessary to disassemble the first collection box 903, press the levers 9024 on both sides inward. The levers 9024 drive the limiting blocks 9023 fixed thereto to slide in opposite directions in the groove of the connecting block 9021 and compress the first spring 9025. At this time, the outer side of the limiting block 9023 gradually disengages from the contact with the side plate 9031 of the first collection box 903. After the constraint is released, the first collection box 903 can be moved vertically downward so that the connecting block 9021 is completely disengaged from the mounting hole of the side plate 9031, thereby completing the disassembly. The outer sides of both limiting blocks 9023 are provided with guide slopes, and the lower end of the cover plate 9022 is engaged with a baffle plate 904, which is located between the two toggle blocks 9024. When installing the first collection box 903, the operator aligns the mounting holes on the side plates 9031 on both sides of the first collection box 903 with the connecting block 9021 and pushes it upward. During the upward movement, the inner edge of the side plate 9031 will first contact the guide slope on the outside of the limiting block 9023, and with the continuous upward pushing force, the two limiting blocks 9023 will be forced to slide towards each other along the sliding groove inside the connecting block 9021, while compressing the first spring 9025. When the first collection box 903 is pushed to the predetermined position at the lower end of the mounting plate 901, the limiting block 9023 will quickly slide outward and return to its original position under the restoring force of the first spring 9025, so that its outer side contacts the outer surface of the side plate 9031, thereby completing the locking. Finally, the baffle plate 904 is snapped onto the lower end of the cover plate 9022 to cover the opening and the internal lever 9024 to prevent them from being accidentally touched. Thus, the quick installation of the first collection box 903 is achieved. The mounting plate 901 has an inlet in the middle, and the first collection box 903 has a diversion block 905 inside; When the crushed mixture falls into the first collection box 903 through the feed inlet, the diverting block 905 can block the falling material flow in the center and guide it to be dispersed to the surrounding area, effectively preventing the material from accumulating in a local area directly below the feed inlet, ensuring that the material can be evenly distributed on the entire screening surface of the first collection box 903, thereby making full use of the screening area and significantly improving the efficiency of vibration screening and the penetration rate of fine particles. The output end of the first motor 4 is equipped with a first driving wheel 10, and the input end of the reducer 2 is equipped with a first driven wheel 11. The first driving wheel 10 and the first driven wheel 11 are connected by a belt. Gears 12 are installed on the outer surfaces of both sets of crushing rollers 5. The two sets of gears 12 are meshed and connected. The output end of the reducer 2 is connected to one of the sets of crushing rollers 5. When the first motor 4 starts, its output drives the first drive wheel 10 to rotate, and transmits the power to the first driven wheel 11 at the input of the reducer 2 via a belt. After the speed and torque are adjusted by the reducer 2, its output directly drives one set of crushing rollers 5 to rotate. The crushing roller 5 meshes with the gear 12 on the other set of crushing rollers 5 through the gear 12 installed on its outer surface, thereby synchronously driving the two sets of crushing rollers 5 to rotate in opposite directions, and finally realizing the crushing operation of the gallium nitride chip waste falling between them. A back plate 13 is installed on one side of the collection box 8. A connecting plate 14 is fixedly installed on the inner wall of the collection box 8. A connecting rod 15 is slidably connected to the middle of the connecting plate 14. A top plate 16 is installed at the upper end of the connecting rod 15. A bottom plate 17 is installed at the lower end of the connecting rod 15. The bottom plate 17 is fixedly installed on the upper end of the mounting plate 901. A second spring 18 is sleeved on the outside of the connecting rod 15. One end of the second spring 18 is connected to the upper end of the bottom plate 17, and the other end of the second spring 18 is connected to the lower end of the connecting plate 14. A rotating shaft 19 is rotatably connected to the inner wall of the collection box 8. One end of the rotating shaft 19 passes through the collection box 8 and is equipped with a second driven wheel 20. A second motor 21 is provided on the outside of the collection box 8. A second driving wheel 22 is installed at the output end of the second motor 21. The second driving wheel 22 and the second driven wheel 20 are connected by a belt. A cam 23 is fixedly installed on the outside of the rotating shaft 19. The cam 23 is located above the top plate 16. When the second motor 21 starts, it drives the second drive wheel 22 to rotate. The drive wheel 20 and the shaft 19 fixed to it rotate on the inner wall of the collection box 8 via a belt. The cam 23 fixed on the shaft 19 rotates synchronously with the shaft and periodically presses the top plate 16 downward. When the top plate 16 is pressed, it pushes the connecting rod 15 to slide downward along the guide hole in the middle of the connecting plate 14 and compresses the second spring 18. At the same time, it drives the bottom plate 17 and the mounting plate 901 fixed to it to move downward. When the cam 23 continues to rotate past the highest point, the second spring 18 releases its elastic potential energy and pushes the bottom plate 17 to return to its original position. Then, the connecting rod 15 drives the top plate 16 and the entire mounting plate 901 to rise again, thereby forming a continuous and stable high-frequency low-amplitude vibration, which provides the required excitation force for material screening in the first collection box 903.

[0018] In operation, the output shaft of the first motor 4 drives the first drive wheel 10 to rotate, which in turn drives the first driven wheel 11 at the input end of the reducer 2 to rotate via belt transmission. The output shaft of the reducer 2 directly drives one set of crushing rollers 5 to rotate. This crushing roller 5 meshes with the gear 12 of another crushing roller 5 via a gear 12 mounted on its outer surface, causing the two sets of crushing rollers 5 to rotate in opposite directions. Then, the cover 25 is opened, and the chips to be crushed are put into the outer casing 3. The chips falling into the crushing chamber are bitten, squeezed, and sheared by the rotating crushing rollers 5 and crushed. During crushing, a gas purification and separation device (not shown in the figure) can be activated to effectively collect the dust generated during crushing and purify the air. After crushing, the material falls into the first collection box 903 through the feed port in the middle of the mounting plate 901. After hitting the diverting block 905, it is dispersed to the surrounding area. At the same time, the second motor 21 drives the second drive wheel 22 to rotate, which in turn drives the second driven wheel via belt transmission. When the rotating shaft 19 rotates, the cam 23 fixed on the rotating shaft 19 rotates accordingly. When the cam 23's protruding part rotates to the bottom, it presses the top plate 16 to move downward. The top plate 16 pushes the connecting rod 15 to slide downward in the guide hole of the connecting plate 14. The lower end of the connecting rod 15 drives the bottom plate 17 and the mounting plate 901 to move downward, compressing the second spring 18. When the cam 23's protruding part rotates to the bottom, the second spring 18 releases its elastic force, pushing the bottom plate 17 to return to its original position. The connecting rod 15 drives the top plate 16 and the mounting plate 901 to rise, thereby generating continuous high-frequency vibration. Under this vibration, the material in the first collection box 903 jumps continuously. Fine particles fall into the second collection box 6 below through the screening holes on the box wall and bottom, while coarse particles are trapped in the first collection box 903. Finally, by directly grasping the handle 7 on the outside of the second collection box 6, the second collection box 6 filled with fine particles is pulled out from the bottom of the frame 1. When the first collection box 903 needs cleaning, first remove the back plate 13 from the collection box 8, then remove the baffle 904 that is clipped to the lower end of the cover plate 9022, exposing the internal lever 9024. Then, simultaneously press the levers 9024 on both sides inward with your fingers. The levers 9024 drive the limiting blocks 9023 to slide towards each other in the groove of the connecting block 9021, compressing the first spring 9025, causing the outer side of the limiting block 9023 to disengage from the side plate 9031. After releasing the constraint, move the first collection box 903 vertically downward, so that the connecting block 9021 completely disengages from the mounting hole of the side plate 9031. Then the first collection box can be cleaned. The material inside 903 is removed. During installation, the mounting holes of the side plates 9031 on both sides of the first collection box 903 are aligned with the connecting block 9021 and pushed upward. The upper edge of the side plate 9031 contacts the guide slope on the outside of the limiting block 9023. Under the continuous upward pushing force, the slope forces the limiting block 9023 to slide towards each other and compress the first spring 9025. When the first collection box 903 reaches the installation position, the limiting block 9023 slides outward under the restoring force of the first spring 9025. Its outer side is in close contact with the outer side of the side plate 9031 to complete the locking. Finally, the baffle plate 904 is snapped onto the lower end of the cover plate 9022 to cover the opening and the lever block 9024.

[0019] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A gallium nitride chip manufacturing waste recycling device, comprising a frame (1), wherein a reducer (2) and a housing (3) are installed at the upper end of the frame (1), a first motor (4) is installed at the lower end of the frame (1), two sets of crushing rollers (5) are rotatably connected inside the housing (3), a second collection box (6) is provided at the inner bottom of the frame (1), and a handle (7) is installed on the outer side of the second collection box (6), characterized in that: The lower end of the frame (1) is also equipped with a collection box (8), the upper end of the collection box (8) is provided with a feed inlet, and the inside of the collection box (8) is provided with a screening structure (9). The screening structure (9) includes a mounting plate (901) disposed inside the collection box (8). The lower end of the mounting plate (901) is fitted with a first collection box (903) via a connecting component (902). The outer surface of the first collection box (903) is provided with a plurality of screening holes. The connecting assembly (902) includes a connecting block (9021) fixedly installed at the lower end of the mounting plate (901). The lower end of the connecting block (9021) is provided with a sliding groove. A cover plate (9022) is installed at the lower end of the connecting block (9021). A through opening is provided in the middle of the cover plate (9022). Two limiting blocks (9023) are slidably connected in the sliding groove. Each of the two limiting blocks (9023) is provided with a lever (9024) at its lower end. Both levers (9024) are located inside the through opening. A first spring (9025) is installed between the two limiting blocks (9023). The first collection box (903) has side plates (9031) at both ends. The upper ends of the two side plates (9031) are provided with mounting holes. The two connecting blocks (9021) are located in the corresponding mounting holes. The outer side of the limiting block (9023) is in contact with the outer side of the side plate (9031).

2. The gallium nitride chip manufacturing waste recycling device according to claim 1, characterized in that: The outer sides of the two limiting blocks (9023) are provided with guide slopes, and the lower end of the cover plate (9022) is engaged with a baffle plate (904), which is located between the two toggle blocks (9024).

3. The gallium nitride chip manufacturing waste recycling device according to claim 1, characterized in that: The mounting plate (901) has an inlet in the middle, and the first collection box (903) has a diversion block (905) inside.

4. The gallium nitride chip manufacturing waste recycling device according to claim 1, characterized in that: The output end of the first motor (4) is equipped with a first driving wheel (10), and the input end of the reducer (2) is equipped with a first driven wheel (11). The first driving wheel (10) and the first driven wheel (11) are connected by a belt. Gears (12) are installed on the outer surfaces of both sets of crushing rollers (5). The two sets of gears (12) are meshed and connected. The output end of the reducer (2) is connected to one of the sets of crushing rollers (5).

5. A gallium nitride chip manufacturing waste recycling device according to claim 1, characterized in that: A back plate (13) is installed on one side of the collection box (8). A connecting plate (14) is fixedly installed on the inner wall of the collection box (8). A connecting rod (15) is slidably connected to the middle of the connecting plate (14). A top plate (16) is installed on the upper end of the connecting rod (15). A bottom plate (17) is installed on the lower end of the connecting rod (15). The bottom plate (17) is fixedly installed on the upper end of the mounting plate (901). A second spring (18) is sleeved on the outer side of the connecting rod (15). One end of the second spring (18) is connected to the upper end of the bottom plate (17), and the other end of the second spring (18) is connected to the lower end of the connecting plate (14).

6. A gallium nitride chip manufacturing waste recycling device according to claim 5, characterized in that: The inner wall of the collection box (8) is rotatably connected to a rotating shaft (19). One end of the rotating shaft (19) passes through the collection box (8) and is equipped with a second driven wheel (20). A second motor (21) is provided on the outside of the collection box (8). A second driving wheel (22) is installed at the output end of the second motor (21). The second driving wheel (22) and the second driven wheel (20) are connected by a belt. A cam (23) is fixedly installed on the outside of the rotating shaft (19). The cam (23) is located above the top plate (16).

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