Active feeding feeding hopper for single crystal preparation and feeding method

Abstract

The invention relates to the field of feeding hoppers, in particular to an active feeding feeding hopper for single crystal preparation and a feeding method.The device comprises a discharging bin, first fixing blocks arranged in a circumferential array mode are fixedly installed outside the discharging bin, and first supporting columns are arranged at the bottoms of the first fixing blocks; an elastic connecting piece and a vibrating piece are fixedly installed outside the discharging bin, and the bottom of the elastic connecting piece is connected with a screening vibrating hopper. An arc-shaped rotating block in the screening vibration hopper rotates, so that powdery materials can be conveyed to the top of a discharging block through centrifugal force of rotation, then a second rotating rod rotates to drive a fourth connecting block to rotate, and a fifth fixing plate can extrude the powdery materials at the top of the discharging block; and the scraping plate can stir the materials on the top of the discharging block, so that the materials are conveyed out of the screening vibration hopper through the first rotating column and the rolling wheel, and the problem that the materials need to be treated again when caking is solved.

Description

Technical Field

[0001] This invention belongs to the field of feeding hoppers, specifically a feeding hopper and feeding method for active feeding in single crystal preparation. Background Technology

[0002] The feed hopper is a key component in single crystal production, used to precisely and uniformly deliver raw materials such as polycrystalline silicon to growth equipment (e.g., single crystal furnaces). It employs vibration, spiral, or gravity-driven methods to ensure stable feeding and reduce contamination. Some models integrate intelligent control, allowing for flow rate adjustment and increased automation, making them suitable for high-purity single crystal production in industries such as semiconductors and photovoltaics. Patent CN211077103U discloses an activated hopper, including a hopper cylinder. An internal support base is connected to the hopper cylinder, and a conical block is connected to the support base. A flexible connector is connected to the top of the hopper cylinder, and the hopper cylinder has a connection port through the flexible connector. Connecting blocks are provided on the outer sides of both the hopper cylinder and the connection port, and a screw is threaded through the connecting blocks. Locking nuts are threaded to both ends of the screw. A spring is provided on the outer side of the screw between the connecting blocks. Multiple sets of feed inlets are provided at different positions in the hopper cylinder, and each set of feed inlets is equipped with corresponding sets of screens and baffles. In use, according to the required particle size, the baffle inside one set of feed inlets is removed, allowing the material to pass through the screen and enter the feed inlet, thereby filtering out the required particle size.

[0003] During the use of the above-mentioned device, although multiple groups of materials can pass through the screen and enter the feed inlet, and the material falls evenly, the material filtered by the screen cannot be processed. Generally, material screening is to maintain particle uniformity, and large particles need to be processed again, which is quite troublesome. Summary of the Invention

[0004] This invention provides an active feeding hopper and feeding method for single crystal preparation, which solves the technical problem in related technologies that the material after sieve filtration cannot be processed, while the purpose of material sieving is to maintain particle uniformity, and large particles need to be processed again.

[0005] The first aspect of this invention discloses an active feeding hopper for single crystal preparation, comprising a feeding bin, a first fixing block arranged in a circumferential array fixedly installed on the outside of the feeding bin, a first support column provided at the bottom of the first fixing block, an elastic connector and a vibrating component fixedly installed on the outside of the feeding bin, a screening vibrating hopper connected to the bottom of the elastic connector, and a vibrating block fixedly installed on the top of the screening vibrating hopper, the screening vibrating hopper being used to vibrate and compress the powdery material inside the feeding bin; the screening vibrating hopper includes a first connecting plate and a second connecting ring. The device comprises a feeding block, a centrifugal rotating component, an internal limiting block, and an extrusion component. A first connecting plate is fixedly installed at the bottom of an elastic connecting component. A second connecting ring is fixedly installed at the bottom of the first connecting plate. A feeding block is fixedly installed at the bottom of the second connecting ring. An internal limiting block is fixedly installed inside the feeding block. A centrifugal rotating component is provided on the internal limiting block. An extrusion component is provided on the centrifugal rotating component. The rotation of the centrifugal rotating component drives the extrusion component to rotate, squeezing the granular material descending in the feeding bin, so that the material particles discharged from the bottom of the feeding block are uniform.

[0006] As a further optimization of the present invention, the elastic connector includes a second fixed block fixedly installed at the lower part of the feeding hopper, a first slider slidably installed inside the second fixed block, a third fixed plate fixedly installed at the top of the second fixed block, a second spring fixedly installed at the bottom of the third fixed plate, a first spring fixedly installed at the bottom of the second fixed block, and a bottom connecting block fixedly installed at the bottom of the first spring. The bottom connecting block is connected to the screening vibrating hopper. When the vibrating element is activated, it causes the feeding hopper to vibrate. The feeding hopper causes the elastic connector to vibrate. The elastic connector drives the bottom connecting block and the screening vibrating hopper to vibrate through the first spring.

[0007] As a further optimization of the present invention, the vibrating component includes a vibrating mounting plate fixedly installed outside the feeding hopper, and a vibrating motor is fixedly installed inside the vibrating mounting plate.

[0008] As a further optimization of the present invention, the screening vibrating hopper includes a first rotating column rotatably installed inside the internal limiting block, a roller is fixedly installed on the outside of the first rotating column, the first rotating column is connected to the centrifugal rotating component, a stop block is fixedly installed on the top of the centrifugal rotating component, and a discharge hole is provided on the top of the discharge block, the discharge hole being used to connect the top of the discharge hole with the bottom of the internal limiting block.

[0009] As a further optimization of the present invention, the centrifugal rotating component includes a first limiting block fixedly mounted on an internal limiting block, a fourth rotating rod rotatably mounted inside the first limiting block, teeth fixedly mounted on the outer wall of the fourth rotating rod, a rotary motor fixedly mounted on the outer wall of the first limiting block, the output shaft of the rotary motor meshing with the teeth, an arc-shaped rotating block fixedly mounted on the top of the fourth rotating rod, a circular array of sliding grooves fixedly mounted on the inner wall of the arc-shaped rotating block, a fifth rotating rod fixedly mounted at the center of the arc-shaped rotating block, an extrusion member fixedly mounted on the upper part of the fifth rotating rod, and the top of the fifth rotating rod fixedly connected to the stop block.

[0010] As a further optimization of the present invention, the extrusion member includes a second rotating rod fixedly installed on the upper part of the fifth rotating rod. The upper and lower ends of the second rotating rod are symmetrically provided with a second limiting plate and a bottom limiting block. The bottom limiting block is slidably connected to the second rotating rod. The outer walls of the second limiting plate and the bottom limiting block are rotatably installed with a third connecting block and a fourth connecting block. The bottom of the second limiting plate and the top of the bottom limiting block are provided with limiting springs. The end of the third connecting block on the side away from the second rotating rod is rotatably connected to the fourth connecting block. The end of the fourth connecting block on the side away from the second rotating rod is rotatably installed with a third rotating plate. The bottom of the third rotating plate is fixedly installed with a fifth fixing plate. An extrusion rotating ring is rotatably installed inside the fifth fixing plate.

[0011] As a further optimization of the present invention, the extrusion member includes a fourth fixing block fixedly installed on the side of the fourth connecting block, a second slide rod slidably installed inside the fourth fixing block, a first connecting rod rotatably installed at the end of the second slide rod away from the second rotating rod, the end of the first connecting rod rotatably connected to the upper part of the third rotating plate, and the end of the second slide rod near the second rotating rod rotatably connected to the end of the third connecting block.

[0012] As a further optimization of the present invention, a fourth sliding rod is fixedly installed at the bottom end of the second limiting plate, and a scraper is slidably installed on the outside of the fourth sliding rod, and a third spring is provided on the top of the scraper.

[0013] As a further optimization of the present invention, a ratchet structure is provided at the connection position between the second limiting plate and the second rotating rod, and a ratchet structure is provided at the connection position between the bottom limiting block and the second rotating rod.

[0014] The second aspect of this invention discloses a feeding method for an active feeding hopper used in single crystal preparation, comprising the following steps: Step 1: First, start the vibrating component and the centrifugal rotating component. The vibrating component drives the feeding hopper and the screening vibrating hopper to vibrate, and feeds the material into the top opening of the feeding hopper. The vibrating component drives the feeding hopper to vibrate, thereby driving the vibrating block and the screening vibrating hopper to vibrate, so that the material is transported into the lower screening vibrating hopper of the feeding hopper, thus completing the hopper vibration feeding effect. Step 2: When the material descends through the vibrating block into the centrifugal rotating component on the inner limiting block, the centrifugal rotating component starts intermittently. The centrifugal rotating component rotates, causing the descending material to be subjected to centrifugal force, thereby transporting it to the top of the material block. During the rotation of the centrifugal rotating component, the extrusion component is driven to rotate. The rotation of the extrusion component will squeeze the material that has rotated to the top of the material block by centrifugal force, thereby squeezing and breaking up the clumps or adhering materials, thus completing the material squeezing effect. Step 3: Then, the motor drives the first rotating column to rotate, and the extruder sends the material into the discharge hole during the extrusion process, so that it falls into the lower part of the discharge block, making the material contact the first rotating column and the roller. The rotation of the first rotating column drives the roller to rotate, thereby transporting the material out of the screening vibrating hopper, completing the process of hopper vibration and material discharge.

[0015] The beneficial effects of this invention are as follows: The present invention discloses an active feeding hopper and feeding method for single crystal preparation. By rotating an arc-shaped rotating block inside the screening vibrating hopper, the powdered material is transported to the top of the feeding block by the centrifugal force of the rotation. Then, the rotation of the second rotating rod drives the fourth connecting block to rotate, so that the fifth fixed plate can squeeze the powdered material at the top of the feeding block, thereby making the material particles uniform. The scraper can push the material at the top of the feeding block, thereby transporting it out of the interior of the screening vibrating hopper through the first rotating column and the roller, solving the problem of material agglomeration that requires further processing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall shape of the device of the present invention; Figure 2 This is a schematic diagram of the overall device installation of the present invention; Figure 3 This is a schematic diagram of the internal structure of the overall device of the present invention; Figure 4 This is a schematic diagram of the internal structure of the screening vibrating hopper of the present invention; Figure 5 This is a schematic diagram of the internal structure of the centrifugal rotating component of the present invention; Figure 6 This is a schematic diagram of the installation of the screening vibrating hopper of the present invention; Figure 7This is a schematic diagram of the internal structure of the extrusion part of the present invention; Figure 8 This is a schematic diagram of the installation of the extrusion component of the present invention.

[0017] In the picture: 1. Feeding bin; 11. First fixing block; 12. First support column; 13. Elastic connector; 131. Second fixing block; 132. First slider; 133. First spring; 134. Bottom connecting block; 135. Second spring; 136. Third fixing plate; 14. Vibrating component; 141. Vibrating motor; 142. Vibrating mounting plate; 15. Vibrating block; 2. Screening vibrating hopper; 21. First connecting plate; 22. Second connecting ring; 23. Feeding block; 231. Feeding hole; 24. Centrifugal rotating component; 241. Arc-shaped rotating block; 242. Slide groove; 243. First limiting block; 244. Tooth; 245. Rotary motor; 246. Fourth rotating rod; 247. Fifth rotating rod; 25. First rotating column; 26. Roller; 27. Internal limiting block; 28. Extrusion component; 281. 282. Second rotating rod; 283. Second limiting plate; 284. Limiting spring; 285. Bottom limiting block; 286. Third connecting block; 287. Fourth connecting block; 288. Second sliding rod; 289. First connecting rod; 2891. Third rotating plate; 2892. Fifth fixing plate; 2893. Scraper; 2894. Fourth sliding rod; 2895. Third spring; 2896. Extrusion rotating ring; 29. ​​Stop block. Detailed Implementation

[0018] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the subject matter described herein, and changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, features described in some examples may be combined in other examples.

[0019] like Figures 1 to 3 As shown in the embodiment of the present invention, an active feeding hopper and feeding method for single crystal preparation includes a feeding bin 1. A first fixed block 11 arranged in a circumferential array is fixedly installed on the outside of the feeding bin 1. A first support column 12 is provided at the bottom of the first fixed block 11. An elastic connector 13 and a vibrating component 14 are fixedly installed on the outside of the feeding bin 1. A screening vibrating hopper 2 is connected to the bottom of the elastic connector 13. A vibrating block 15 is fixedly installed on the top of the screening vibrating hopper 2. The screening vibrating hopper 2 is used to vibrate and compress the powdery material inside the feeding bin 1. like Figures 4 to 6 As shown, the screening vibrating hopper 2 includes a first connecting plate 21, a second connecting ring 22, a feeding block 23, a centrifugal rotating component 24, an internal limiting block 27, and an extrusion component 28. The first connecting plate 21 is fixedly installed at the bottom of the elastic connecting component 13. The second connecting ring 22 is fixedly installed at the bottom of the first connecting plate 21. The feeding block 23 is fixedly installed at the bottom of the second connecting ring 22. An internal limiting block 27 is fixedly installed inside the feeding block 23. A centrifugal rotating component 24 is provided on the internal limiting block 27. An extrusion component 28 is provided on the centrifugal rotating component 24. The rotation of the centrifugal rotating component 24 drives the extrusion component 28 to rotate, squeezing the granular material descending in the feeding hopper 1, so that the material particles discharged from the bottom of the feeding block 23 are uniform.

[0020] It should be noted that when powdered materials are fed, they may absorb moisture and clump together. To solve this clumping problem, they are usually filtered through a filter screen. The material is vibrated in the hopper before being fed. However, during this process, the material may clog the filter screen, and the filtered material needs to be reprocessed. To solve this problem, the following improvements have been made. First, the material is transported from the opening at the top of the feeding hopper 1 into its interior. Then, the vibrating component 14 is activated, causing the feeding hopper 1 and the elastic connecting component 13 to vibrate. A screening vibrating hopper 2 is located at the bottom of the elastic connecting component 13, which in turn causes the vibrating blocks 15 on the screening vibrating hopper 2 to vibrate, discharging the powdery material inside the feeding hopper 1. The material first falls into the centrifugal rotating component 24. Then, the centrifugal rotating component 24 is intermittently activated, causing the material on it to rotate, generating centrifugal force, and transporting it to the top of the feeding block 23. During the intermittent rotation of the centrifugal rotating component 24, it can drive the extrusion component 28 to rotate and descend, thereby extruding the material on the top of the feeding block 23, thus improving the particle uniformity of the material during feeding. The extrusion component 28 allows the material to enter the interior of the feeding block 23 through the holes provided on the feeding block 23, and then fall from the bottom of the screening vibrating hopper 2. The centrifugal rotating component 24 can also be equipped with a heating device to dry and crush materials that can absorb moisture from the air, thereby improving the uniformity of material feeding and particle uniformity.

[0021] like Figures 1 to 3As shown, the elastic connector 13 includes a second fixing block 131 fixedly installed at the lower part of the feeding hopper 1. A first slider 132 is slidably installed inside the second fixing block 131. A third fixing plate 136 is fixedly installed on the top of the second fixing block 131. A second spring 135 is fixedly installed at the bottom of the third fixing plate 136. A first spring 133 is fixedly installed at the bottom of the second fixing block 131. A bottom connecting block 134 is fixedly installed at the bottom of the first spring 133. The bottom connecting block 134 is connected to the screening vibrating hopper 2. When the vibrating element 14 is activated, it drives the feeding hopper 1 to vibrate. The feeding hopper 1 drives the elastic connector 13 to vibrate. The elastic connector 13 drives the bottom connecting block 134 and the screening vibrating hopper 2 to vibrate through the first spring 133.

[0022] It should be noted that a first spring 133 is fixedly installed at the bottom of the first slider 132, and a bottom connecting block 134 is connected to the bottom of the first spring 133. Therefore, when the vibrating element 14 vibrates, it can drive the bottom connecting block 134 connected at the bottom to vibrate. The bottom connecting block 134 is connected to the first connecting plate 21, thereby driving the screening vibrating hopper 2 to vibrate.

[0023] like Figures 1 to 3 As shown, the vibrating component 14 includes a vibrating mounting plate 142 fixedly installed outside the feeding hopper 1, and a vibrating motor 141 is fixedly installed inside the vibrating mounting plate 142.

[0024] It should be noted that the start of the vibrating component 14 can drive the feeding bin 1 to vibrate, and the feeding bin 1 and the screening vibrating hopper 2 are connected by a sliding elastic connection, so the screening vibrating hopper 2 can be driven to vibrate.

[0025] like Figures 3 to 6 As shown, the screening vibrating hopper 2 includes a first rotating column 25 rotatably installed inside the internal limiting block 27. A roller 26 is fixedly installed on the outside of the first rotating column 25. The first rotating column 25 is connected to the centrifugal rotating component 24. A stop block 29 is fixedly installed on the top of the centrifugal rotating component 24. A discharge hole 231 is provided on the top of the discharge block 23. The discharge hole 231 is used to connect the top of the discharge hole 231 with the bottom of the internal limiting block 27.

[0026] It should be noted that the powder inside the centrifugal rotating part 24 is transported to the top of the centrifugal rotating part 24 by centrifugal force. Then, the powder is swung by the rotation of the extrusion part 28, so that the powder falls into the inside of the feeding block 23 through the feeding hole 231. Then, the motor drives the first rotating column 25 to rotate, and the rotation of the first rotating column 25 drives the roller 26 to rotate, thereby transporting the powder material inside the feeding block 23 out of the inside of the screening vibrating hopper 2.

[0027] like Figures 3 to 6 As shown, the centrifugal rotating component 24 includes a first limiting block 243 fixedly installed on an internal limiting block 27. A fourth rotating rod 246 is rotatably installed inside the first limiting block 243. Teeth 244 are fixedly installed on the outer wall of the fourth rotating rod 246. A rotary motor 245 is fixedly installed on the outer wall of the first limiting block 243. The output shaft of the rotary motor 245 meshes with the teeth 244. An arc-shaped rotating block 241 is fixedly installed on the top of the fourth rotating rod 246. A circular array of sliding grooves 242 is fixedly installed on the inner wall of the arc-shaped rotating block 241. A fifth rotating rod 247 is fixedly installed at the center of the arc-shaped rotating block 241. An extrusion member 28 is fixedly installed on the upper part of the fifth rotating rod 247. The top of the fifth rotating rod 247 is fixedly connected to the stop block 29.

[0028] It should be noted that when the rotary motor 245 starts, its output shaft meshes with the teeth 244, thereby driving the fourth rotary rod 246 to rotate. An arc-shaped rotary block 241 is fixedly installed on the top of the fourth rotary rod 246, thus driving the arc-shaped rotary block 241 to rotate. The rotary motor 245 starts intermittently, thus driving the arc-shaped rotary block 241 to start intermittently. The material falls into the interior of the arc-shaped rotary block 241 and is then transported to the top of the feeding block 23 by the centrifugal force of rotation under the action of the chute 242. The top of the fifth rotary rod 247 is provided with an extrusion member 28, which drives the extrusion member 28 to rise and fall to extrude and agitate the material on the top of the feeding block 23, thereby crushing the material particles. The arc-shaped rotary block 241 can be set as a heating block, so that when the material falls into the interior of the arc-shaped rotary block 241, it is heated to remove moisture, preventing water absorption and clumping and adhesion, improving the uniformity of the material particles. After rotation and extrusion, the clumped material is more likely to become powder, solving the problem of powder clumping.

[0029] like Figures 6 to 8As shown, the extrusion member 28 includes a second rotating rod 281 fixedly installed on the upper part of the fifth rotating rod 247. The upper and lower ends of the second rotating rod 281 are symmetrically provided with a second limiting plate 282 and a bottom limiting block 284. The bottom limiting block 284 is slidably connected to the second rotating rod 281. The outer walls of the second limiting plate 282 and the bottom limiting block 284 are rotatably installed with a third connecting block 285 and a fourth connecting block 286. The bottom of the second limiting plate 282 and the top of the bottom limiting block 284 are provided with a limiting spring 283. The end of the third connecting block 285 on the side away from the second rotating rod 281 is rotatably connected to the fourth connecting block 286. The end of the fourth connecting block 286 on the side away from the second rotating rod 281 is rotatably installed with a third rotating plate 2891. The bottom of the third rotating plate 2891 is fixedly installed with a fifth fixing plate 2892. The extrusion rotating ring 2896 is rotatably installed inside the fifth fixing plate 2892.

[0030] It should be noted that the rotation of the fifth rotating rod 247 drives the rotation of the second rotating rod 281, which in turn drives the external second limiting plate 282 and the bottom limiting block 284 to rotate. When the second rotating rod 281 is not rotating, the bottom limiting block 284 is at the bottom of the second rotating rod 281 under the action of the limiting spring 283. When the fifth rotating rod 247 rotates, it drives the second rotating rod 281 to rotate, thereby causing the fourth connecting block 286 to be subjected to rotational force. The end of the fourth connecting block 286 is connected to the fifth fixing plate 2892 and the compression rotating ring 2896. During the acceleration process of intermittent rotation, the bottom limiting block 284 rises, and under the action of the third connecting block 285, the fourth connecting block 286... The fifth fixing plate 2892 at the end of the receiving block 286 descends, thereby squeezing the powder material gathered on the top of the feeding block 23, resulting in better particle uniformity and reducing powder particle adhesion problems. A torsion spring is provided at the connection point between the second rotating rod 281 and the second limiting plate 282, and also at the connection point between the second rotating rod 281 and the bottom limiting block 284. When the fifth rotating rod 247 stops rotating, and the second rotating rod 281 also stops rotating, the second limiting plate 282 and the bottom limiting block 284 will continue to rotate for a period of time due to inertia. Under the action of the limiting spring 283, the bottom limiting block 284 and the fifth fixing plate 2892 reset, thus returning to their original positions. Figure 6 The state.

[0031] like Figures 6 to 8As shown, the extrusion member 28 includes a fourth fixing block 287 fixedly installed on the side of the fourth connecting block 286. A second slide rod 288 is slidably installed inside the fourth fixing block 287. A first connecting rod 289 is rotatably installed at the end of the second slide rod 288 on the side away from the second rotating rod 281. The end of the first connecting rod 289 is rotatably connected to the upper part of the third rotating plate 2891. The end of the second slide rod 288 on the side close to the second rotating rod 281 is rotatably connected to the end of the third connecting block 285.

[0032] It should be noted that when the end of the fourth connecting block 286 on the side away from the second rotating rod 281 is raised or lowered, the fifth fixing plate 2892 is rotatably connected to the end of the fourth connecting block 286. Therefore, the direction of the fifth fixing plate 2892 is not easy to control. Therefore, a fourth fixing block 287 and a second sliding rod 288 are provided on the side of the fourth connecting block 286. When the third connecting block 285 rotates, it can drive the second sliding rod 288 to extend. The second sliding rod 288 drives the first connecting rod 289 to move closer to the direction of the fifth fixing plate 2892, thereby achieving the purpose of adjusting the direction of the fifth fixing plate 2892. This allows the powder on the top of the feed block 23 to be crushed during the raising and lowering of the fifth fixing plate 2892.

[0033] like Figures 6 to 8 As shown, a fourth sliding rod 2894 is symmetrically arranged and fixedly installed at the bottom end of the second limiting plate 282. A scraper 2893 is slidably installed on the outside of the fourth sliding rod 2894, and a third spring 2895 is provided on the top of the scraper 2893.

[0034] It should be noted that the scraper 2893 slides outside the fourth slide bar 2894, and when the fifth fixed plate 2892 rotates around the second rotating rod 281, the scraper 2893 contacts the top of the feeding block 23, thereby moving the powder material so that the powder material can fall from the feeding hole 231 into the interior of the feeding block 23, and then be transported by the first rotating column 25 and the roller 26.

[0035] like Figures 4 to 7 As shown, a ratchet structure is provided at the connection position between the second limiting plate 282 and the second rotating rod 281, and a ratchet structure is provided at the connection position between the bottom limiting block 284 and the second rotating rod 281.

[0036] It should be noted that the rotation of the second rotating rod 281 can drive the second limiting plate 282 to rotate. Therefore, when the second rotating rod 281 stops rotating, the second limiting plate 282 can still continue to rotate due to inertia. The bottom limiting block 284 is slidably connected to the second rotating rod 281, so the bottom limiting block 284 can slide inside the second rotating rod 281 during the rotation process.

[0037] A feeding method for an active feeding hopper used in single crystal preparation, comprising the following steps: Step 1: First, start the vibrating component 14 and the centrifugal rotating component 24. The vibrating component 14 drives the feeding bin 1 and the screening vibrating hopper 2 to vibrate, feeding material into the top opening of the feeding bin 1. The vibrating component 14 drives the feeding bin 1 to vibrate, thereby driving the vibrating block 15 and the screening vibrating hopper 2 to vibrate, so that the material is transported from the feeding bin 1 to the interior of the screening vibrating hopper 2, thus completing the hopper vibration feeding effect. Step 2: When the material descends through the vibrating block 15 into the centrifugal rotating component 24 on the internal limiting block 27, the centrifugal rotating component 24 starts intermittently. The centrifugal rotating component 24 rotates, causing the descending material to be subjected to centrifugal force, thereby transporting it to the top of the material block 23. During the rotation of the centrifugal rotating component 24, the extrusion component 28 is driven to rotate. The rotation of the extrusion component 28 will squeeze the material that has rotated to the top of the material block 23 by centrifugal force, thereby squeezing and breaking up the clumped or adhered material, thus completing the material squeezing effect. Step 3: Then, the motor drives the first rotating column 25 to rotate, and the extruder 28 delivers the material into the discharge hole 231 during the extrusion process, so that the material falls into the lower part of the discharge block 23, so that the material comes into contact with the first rotating column 25 and the roller 26. The rotation of the first rotating column 25 drives the roller 26 to rotate, thereby transporting the material out of the screening vibrating hopper 2, completing the process of hopper vibration and material discharge.

[0038] The embodiments of the present invention have been described above, but the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms based on the guidance of the embodiments described above, all of which are within the protection scope of the present invention.

Claims

1. A feeding hopper for active feeding in single crystal preparation, comprising a feeding bin (1), characterized in that: The material feeding hopper (1) is fixedly installed with a first fixed block (11) arranged in a circular array on the outside. The bottom of the first fixed block (11) is provided with a first support column (12). The material feeding hopper (1) is fixedly installed with an elastic connector (13) and a vibrating component (14). The bottom of the elastic connector (13) is connected to a screening vibrating hopper (2). The top of the screening vibrating hopper (2) is fixedly installed with a vibrating block (15). The screening vibrating hopper (2) is used to vibrate and compress the powdery material inside the material feeding hopper (1). The screening vibrating hopper (2) includes a first connecting plate (21), a second connecting ring (22), a feeding block (23), a centrifugal rotating component (24), an internal limiting block (27), and an extrusion component (28). The first connecting plate (21) is fixedly installed at the bottom of the elastic connecting component (13). The second connecting ring (22) is fixedly installed at the bottom of the first connecting plate (21). The feeding block (23) is fixedly installed at the bottom of the second connecting ring (22). An internal limiting block (27) is fixedly installed inside the feeding block (23). A centrifugal rotating component (24) is provided on the internal limiting block (27). An extrusion component (28) is provided on the centrifugal rotating component (24). The centrifugal rotating component (24) rotates and drives the extrusion component (28) to rotate, extruding the granular material descending in the feeding bin (1), so that the material particles discharged from the bottom of the feeding block (23) are uniform.

2. The feeding hopper for active feeding in single crystal preparation according to claim 1, characterized in that: The elastic connector (13) includes a second fixed block (131) fixedly installed at the bottom of the feeding hopper (1). A first slider (132) is slidably installed inside the second fixed block (131). A third fixed plate (136) is fixedly installed on the top of the second fixed block (131). A second spring (135) is fixedly installed at the bottom of the third fixed plate (136). A first spring (133) is fixedly installed at the bottom of the second fixed block (131). A bottom connecting block (134) is fixedly installed at the bottom of the first spring (133). The bottom connecting block (134) is connected to the screening vibrating hopper (2). When the vibrating element (14) is activated, it drives the feeding hopper (1) to vibrate. The feeding hopper (1) drives the elastic connector (13) to vibrate. The elastic connector (13) drives the bottom connecting block (134) and the screening vibrating hopper (2) to vibrate through the first spring (133).

3. The feeding hopper for active feeding in single crystal preparation according to claim 2, characterized in that: The vibrating component (14) includes a vibrating mounting plate (142) fixedly installed outside the feeding hopper (1), and a vibrating motor (141) is fixedly installed inside the vibrating mounting plate (142).

4. The feeding hopper for active feeding in single crystal preparation according to claim 3, characterized in that: The screening vibrating hopper (2) includes a first rotating column (25) rotatably installed inside the internal limiting block (27). A roller (26) is fixedly installed on the outside of the first rotating column (25). The first rotating column (25) is connected to the centrifugal rotating component (24). A stop block (29) is fixedly installed on the top of the centrifugal rotating component (24). A discharge hole (231) is provided on the top of the discharge block (23). The discharge hole (231) is used to connect the top of the discharge hole (231) with the bottom of the internal limiting block (27).

5. The feeding hopper for active feeding in single crystal preparation according to claim 4, characterized in that: The centrifugal rotating component (24) includes a first limiting block (243) fixedly installed on an internal limiting block (27). A fourth rotating rod (246) is rotatably installed inside the first limiting block (243). Teeth (244) are fixedly installed on the outer wall of the fourth rotating rod (246). A rotary motor (245) is fixedly installed on the outer wall of the first limiting block (243). The output shaft of the rotary motor (245) meshes with the teeth (244). An arc-shaped rotating block (241) is fixedly installed on the top of the fourth rotating rod (246). A circular array of sliding grooves (242) is fixedly installed on the inner wall of the arc-shaped rotating block (241). A fifth rotating rod (247) is fixedly installed at the center of the arc-shaped rotating block (241). An extrusion component (28) is fixedly installed on the upper part of the fifth rotating rod (247). The top of the fifth rotating rod (247) is fixedly connected to the stop block (29).

6. The feeding hopper for active feeding in single crystal preparation according to claim 5, characterized in that: The extrusion member (28) includes a second rotating rod (281) fixedly installed on the upper part of the fifth rotating rod (247). A second limiting plate (282) and a bottom limiting block (284) are symmetrically arranged at the upper and lower ends of the second rotating rod (281). The bottom limiting block (284) is slidably connected to the second rotating rod (281). A third connecting block (285) and a fourth connecting block (286) are rotatably installed on the outer walls of the second limiting plate (282) and the bottom limiting block (284). The bottom of the second limiting plate (282) and the... The bottom limiting block (284) is provided with a limiting spring (283) at its top. The end of the third connecting block (285) on the side away from the second rotating rod (281) is rotatably connected to the fourth connecting block (286). The end of the fourth connecting block (286) on the side away from the second rotating rod (281) is rotatably mounted with a third rotating plate (2891). The bottom of the third rotating plate (2891) is fixedly mounted with a fifth fixing plate (2892). The inside of the fifth fixing plate (2892) is rotatably mounted with a compression rotating ring (2896).

7. The feeding hopper for active feeding in single crystal preparation according to claim 6, characterized in that: The extrusion member (28) includes a fourth fixing block (287) fixedly installed on the side of the fourth connecting block (286). A second slide rod (288) is slidably installed inside the fourth fixing block (287). A first connecting rod (289) is rotatably installed at the end of the second slide rod (288) on the side away from the second rotating rod (281). The end of the first connecting rod (289) is rotatably connected to the upper part of the third rotating plate (2891). The end of the second slide rod (288) on the side close to the second rotating rod (281) is rotatably connected to the end of the third connecting block (285).

8. The feeding hopper for active feeding in single crystal preparation according to claim 7, characterized in that: The bottom end of the second limiting plate (282) is fixedly installed with a symmetrically arranged fourth slide rod (2894), and a scraper (2893) is slidably installed on the outside of the fourth slide rod (2894). A third spring (2895) is provided on the top of the scraper (2893).

9. The feeding hopper for active feeding in single crystal preparation according to claim 8, characterized in that: The second limiting plate (282) and the second rotating rod (281) are connected by a ratchet structure, and the bottom limiting block (284) and the second rotating rod (281) are connected by a ratchet structure.

10. A feeding method for an active feeding hopper for single crystal preparation as described in claim 9, characterized in that: Includes the following steps: Step 1: First, start the vibrating component (14) and the centrifugal rotating component (24). The vibrating component (14) drives the feeding bin (1) and the screening vibrating hopper (2) to vibrate, and feeds the material into the top opening of the feeding bin (1). The vibrating component (14) drives the feeding bin (1) to vibrate, thereby driving the vibrating block (15) and the screening vibrating hopper (2) to vibrate, so that the material is transported into the lower screening vibrating hopper (2) of the feeding bin (1), thus completing the hopper vibration feeding effect. Step 2: When the material descends through the vibrating block (15) into the centrifugal rotating component (24) on the internal limiting block (27), the centrifugal rotating component (24) starts intermittently. The centrifugal rotating component (24) rotates, causing the descending material to be subjected to centrifugal force, thereby transporting it to the top of the material block (23). During the rotation of the centrifugal rotating component (24), the extrusion component (28) is driven to rotate. The rotation of the extrusion component (28) will squeeze the material that has been rotated to the top of the material block (23) by centrifugal force, thereby squeezing and breaking up the clumped or adhered material, thus completing the material squeezing effect. Step 3: Then, the motor drives the first rotating column (25) to rotate, and the extruder (28) sends the material into the discharge hole (231) during the extrusion process, so that it falls into the lower part of the discharge block (23), so that the material comes into contact with the first rotating column (25) and the roller (26). The rotation of the first rotating column (25) drives the roller (26) to rotate, thereby transporting the material out of the screening vibrating hopper (2) and completing the process of hopper vibration and material discharge.

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