A feed hopper and a feed method for active feeding of single crystal production

Abstract

The application relates to the field of feeding hoppers, in particular to a feeding hopper for single crystal preparation and a feeding method, wherein the device comprises a discharging bin, the outer part of the discharging bin is fixedly provided with a first fixed block arranged in a circumferential array, the bottom of the first fixed block is provided with a first supporting column, the outer part of the discharging bin is fixedly provided with an elastic connecting piece and a vibrating piece, and the bottom of the elastic connecting piece is connected with a screening vibrating hopper; the arc-shaped rotating block in the screening vibrating hopper is rotated, so that the powdery material can be conveyed to the top of the discharging block through the centrifugal force of rotation; then the fourth connecting block is rotated through the rotation of the second rotating rod, so that the fifth fixed plate can extrude the powdery material on the top of the discharging block, thereby making the particles of the material uniform; and the scraper can push the material on the top of the discharging block, so that the material is conveyed out of the interior of the screening vibrating hopper through the first rotating column and the winding wheel, and the problem that the material needs to be treated again due to caking is solved.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of feed hoppers, in particular to an active feeding hopper for single crystal preparation and a feeding method. BACKGROUND

[0002] The feed hopper is a key component for single crystal preparation, which is used to accurately and uniformly deliver raw materials such as polysilicon to a growth device (e.g., a single crystal furnace). The vibration, screw or gravity driving mode is adopted to ensure stable feeding and reduce pollution. Some models are integrated with intelligent control, which can adjust the flow and improve the automation level, and are suitable for high-purity single crystal production in the semiconductor, photovoltaic and other industries.

[0003] The patent with publication number CN211077103U discloses an activated hopper, which comprises a hopper cylinder, a support seat connected inside the hopper cylinder, and a taper block connected to the support seat. The top end of the hopper cylinder is connected to a flexible connection, and the hopper cylinder has a connection port through the flexible connection. The hopper cylinder and the connection port are both provided with a connecting block, and a screw is connected between the connecting blocks. The both ends of the screw are threaded with lock nuts. Springs are arranged outside the screw between the connecting blocks. Multiple groups of material outlets are arranged at different positions of the hopper cylinder, and each group of material outlets is provided with a corresponding group of screens and a group of baffles. During use, the baffle inside one of the groups of material outlets is pulled out according to the required particle size of the material, and the material passes through the screen into the material outlet, so as to screen the required particle size of the material.

[0004] The above device can make multiple groups of materials pass through the screen into the material outlet, and the material can be uniformly lowered, but the material filtered by the screen cannot be treated. Generally, material screening is to maintain uniformity of particles, and large particle materials need to be treated again, which is troublesome. SUMMARY

[0005] The application provides an active feeding hopper for single crystal preparation and a feeding method, which solves the technical problem that the material filtered by the screen cannot be treated in the related art, and generally, material screening is to maintain uniformity of particles, and large particle materials need to be treated again.

[0006] The application discloses a feeding hopper with active feeding for single crystal preparation, which comprises a discharging bin, a first fixing block arranged in a circumferential array is fixedly installed outside the discharging bin, a first supporting column is arranged at the bottom of the first fixing block, an elastic connecting piece and a vibrating piece are fixedly installed outside the discharging bin, a screening vibrating hopper is connected to the bottom of the elastic connecting piece, a vibrating block is fixedly installed at the top of the screening vibrating hopper, and the screening vibrating hopper is used for vibrating and extruding powdery materials in the discharging bin.

[0007] As a further optimization scheme of the application, the elastic connecting piece comprises a second fixing block fixedly installed at the lower part of the discharging bin, a first sliding block is slidingly installed in the second fixing block, a third fixing plate is fixedly installed at the top of the second fixing block, a second spring is fixedly installed at the bottom of the third fixing plate, a first spring is fixedly installed at the bottom of the second fixing block, a bottom connecting block is fixedly installed at the bottom of the first spring, the bottom connecting block is connected with the screening vibrating hopper, the vibrating piece drives the discharging bin to shake, the discharging bin drives the elastic connecting piece to shake, and the elastic connecting piece drives the bottom connecting block and the screening vibrating hopper to shake through the first spring.

[0008] As a further optimization scheme of the application, the vibrating piece comprises a vibrating installation plate fixedly installed outside the discharging bin, and a vibrating motor is fixedly installed in the vibrating installation plate.

[0009] As a further optimization scheme of the application, the screening vibrating hopper comprises a first rotating column rotatably installed in the internal limiting block, a winding wheel is fixedly installed outside the first rotating column, the first rotating column is connected with the centrifugal rotating piece, a stop block is fixedly installed at the top of the centrifugal rotating piece, a discharging hole is arranged at the top of the discharging block, and the discharging hole is used for communicating the top of the discharging hole with the bottom of the internal limiting block.

[0010] As a further optimization scheme of the present application, the centrifugal rotating piece comprises a first limiting block fixedly installed on the inner limiting block, a fourth rotating rod rotatably installed on the first limiting block, a gear fixedly installed on the outer wall of the fourth rotating rod, a rotating motor fixedly installed on the outer wall of the first limiting block, an output shaft of the rotating motor engaged with the gear, an arc-shaped rotating block fixedly installed on the top of the fourth rotating rod, a circumferential array of sliding grooves fixedly installed on the inner wall of the arc-shaped rotating block, a fifth rotating rod fixedly installed on the center of the arc-shaped rotating block, and a pressing piece fixedly installed on the upper portion of the fifth rotating rod, wherein the top of the fifth rotating rod is fixedly connected with the stop block.

[0011] As a further optimization scheme of the present application, the pressing piece comprises a second rotating rod fixedly installed on the upper portion of the fifth rotating rod, a second limiting plate and a bottom limiting block symmetrically arranged on the upper and lower ends of the second rotating rod, the bottom limiting block being slidably connected with the second rotating rod, a third connecting block and a fourth connecting block rotatably installed on the outer walls of the second limiting plate and the bottom limiting block, a limiting spring arranged on the bottom of the second limiting plate and the top of the bottom limiting block, the end of the third connecting block on the side away from the second rotating rod being rotatably connected with the fourth connecting block, a third rotating plate rotatably installed on the end of the fourth connecting block on the side away from the second rotating rod, a fifth fixed plate fixedly installed on the bottom of the third rotating plate, and a pressing rotating ring rotatably installed in the inner portion of the fifth fixed plate.

[0012] As a further optimization scheme of the present application, the pressing piece comprises a fourth fixed block fixedly installed on the side of the fourth connecting block, a second sliding rod slidably installed in the inner portion of the fourth fixed block, a first connecting rod rotatably installed on the end of the second sliding rod on the side away from the second rotating rod, the end of the first connecting rod being rotatably connected with the upper portion of the third rotating plate, and the end of the second sliding rod on the side close to the second rotating rod being rotatably connected with the end of the third connecting block.

[0013] As a further optimization scheme of the present application, the bottom end of the second limiting plate is fixedly installed with a fourth sliding rod symmetrically arranged, the outer portion of the fourth sliding rod is slidably installed with a scraper, and the top of the scraper is provided with a third spring.

[0014] As a further optimization scheme of the present application, the connecting position of the second limiting plate and the second rotating rod is provided with a ratchet structure, and the connecting position of the bottom limiting block and the second rotating rod is provided with a ratchet structure.

[0015] The second aspect of the present application discloses a feeding method of a feeding hopper for active feeding in single crystal preparation, comprising the following steps:

[0016] 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.

[0017] 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.

[0018] 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.

[0019] The beneficial effects of this invention are as follows:

[0020] 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

[0021] Figure 1 This is a schematic diagram of the overall shape of the device of the present invention;

[0022] Figure 2 This is a schematic diagram of the overall device installation of the present invention;

[0023] Figure 3 This is a schematic diagram of the internal structure of the overall device of the present invention;

[0024] Figure 4 This is a schematic diagram of the internal structure of the screening vibrating hopper of the present invention;

[0025] Figure 5is the internal structure schematic view of the centrifugal rotating piece of the present application;

[0026] Figure 6 is the installation schematic view of the screening vibrating hopper of the present application;

[0027] Figure 7 is the internal structure schematic view of the extruding piece of the present application;

[0028] Figure 8 is the installation schematic view of the extruding piece of the present application.

[0029] in the figure:

[0030] 1, blanking bin; 11, first fixed block; 12, first supporting column; 13, elastic connecting piece; 131, second fixed block; 132, first sliding block; 133, first spring; 134, bottom connecting block; 135, second spring; 136, third fixed plate; 14, vibrating piece; 141, vibrating motor; 142, vibrating mounting plate; 15, vibrating block;

[0031] 2, screening vibrating hopper; 21, first connecting plate; 22, second connecting ring; 23, blanking block; 231, blanking hole; 24, centrifugal rotating piece; 241, arc-shaped rotating block; 242, chute; 243, first limiting block; 244, tooth; 245, rotating motor; 246, fourth rotating rod; 247, fifth rotating rod; 25, first rotating column; 26, winding wheel; 27, internal limiting block; 28, extruding piece; 281, second rotating rod; 282, second limiting plate; 283, limiting spring; 284, bottom limiting block; 285, third connecting block; 286, fourth connecting block; 287, fourth fixed block; 288, second sliding rod; 289, first connecting rod; 2891, third rotating plate; 2892, fifth fixed plate; 2893, scraper; 2894, fourth sliding rod; 2895, third spring; 2896, extruding rotating ring; 29, stop block. DETAILED DESCRIPTION

[0032] The subject matter described herein will now be discussed with reference to example implementations. It should be understood that discussions of these implementations are merely provided for the purposes of enabling better understanding of the subject matter and can be changed in the functional and arrange- ments of the elements without departing from the scope of the present description. Various processes or components can be omitted, substituted, or added according to desired implementations. Additionally, features described with respect to some examples can be combined in other examples.

[0033] As Figures 1 to 3As 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.

[0034] 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.

[0035] 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.

[0036] Firstly, the material is transported from the opening at the top end of the hopper 1 to the inside of the hopper 1, and then the vibration piece 14 is started to drive the hopper 1 and the elastic connecting piece 13 to vibrate, and the bottom of the elastic connecting piece 13 is provided with a screening vibration hopper 2, so as to drive the vibration block 15 on the screening vibration hopper 2 to vibrate, and the powdery material in the inside of the hopper 1 is discharged, and the material first falls into the inside of the centrifugal rotating piece 24, and then the centrifugal rotating piece 24 is started intermittently, so that the material on the centrifugal rotating piece 24 rotates to generate centrifugal force and is transported to the top of the discharging block 23, and in the process of intermittent rotation of the centrifugal rotating piece 24, the extruding piece 28 can be driven to rotate and descend, so as to extrude the material on the top of the discharging block 23, thereby improving the uniformity of the particles when the material is discharged, and the material is made to pass through the hole provided on the discharging block 23 to enter the inside of the discharging block 23 through the extruding piece 28, and then falls from the bottom of the screening vibration hopper 2, and the centrifugal rotating piece 24 can also be provided with a heating device, so as to dry and crush the material that can absorb moisture in the air, thereby improving the uniformity of the material discharge and the uniformity of the particles.

[0037] As shown in Figures 1 to 3 The elastic connecting piece 13 includes a second fixed block 131 fixedly installed at the lower part of the hopper 1, a first sliding block 132 slidably installed in the inside of the second fixed block 131, a third fixed plate 136 fixedly installed at the top of the second fixed block 131, a third fixed plate 136 fixedly installed at the top of the second fixed block 131, a second spring 135 fixedly installed at the bottom of the third fixed plate 136, a first spring 133 fixedly installed at the bottom of the second fixed block 131, a bottom connecting block 134 fixedly installed at the bottom of the first spring 133, and the bottom connecting block 134 is connected with the screening vibration hopper 2, the vibration piece 14 is started to drive the hopper 1 to shake, the hopper 1 drives the elastic connecting piece 13 to shake, and the elastic connecting piece 13 drives the bottom connecting block 134 and the screening vibration hopper 2 to shake through the first spring 133.

[0038] It should be noted that the first sliding block 132 is fixedly installed with the first spring 133 at the bottom, and the first spring 133 is connected with the bottom connecting block 134 at the bottom, so that when the vibration piece 14 vibrates, the bottom connecting block 134 connected at the bottom can be vibrated, and the bottom connecting block 134 is connected with the first connecting plate 21, so as to drive the screening vibration hopper 2 to vibrate.

[0039] As shown in Figures 1 to 3 The vibration piece 14 includes a vibration installation plate 142 fixedly installed outside the hopper 1, and a vibration motor 141 fixedly installed in the inside of the vibration installation plate 142.

[0040] It should be noted that the vibration piece 14 starts to drive the blanking bin 1 to vibrate, and the blanking bin 1 and the screening vibrating hopper 2 are elastically connected in sliding mode, so as to drive the screening vibrating hopper 2 to vibrate.

[0041] As shown in Figures 3 to 6 The screening vibrating hopper 2 comprises a first rotating column 25 rotatably installed in the inside limiting block 27, a winding wheel 26 is fixedly installed on the outside of the first rotating column 25, the first rotating column 25 is connected with the centrifugal rotating piece 24, a stop block 29 is fixedly installed on the top of the centrifugal rotating piece 24, and a blanking hole 231 is arranged on the top of the blanking block 23, and the blanking hole 231 is used for communicating the top of the blanking hole 231 with the bottom of the inside limiting block 27.

[0042] It should be noted that the powder in the centrifugal rotating piece 24 is transported to the top of the centrifugal rotating piece 24 by centrifugal force, and then rotated by the extruding piece 28 to swing the powder, so that the powder falls into the inside of the blanking block 23 through the blanking hole 231, and then the first rotating column 25 is driven to rotate by the motor, and the winding wheel 26 is driven to rotate by the first rotating column 25, so as to transport the powder material in the inside of the blanking block 23 out of the inside of the screening vibrating hopper 2.

[0043] As shown in Figures 3 to 6 The centrifugal rotating piece 24 comprises a first limiting block 243 fixedly installed on the inside limiting block 27, a fourth rotating rod 246 is rotatably installed in the inside of the first limiting block 243, a gear tooth 244 is fixedly installed on the outer wall of the fourth rotating rod 246, a rotating motor 245 is fixedly installed on the outer wall of the first limiting block 243, the output shaft of the rotating motor 245 is engaged with the gear tooth 244, an arc-shaped rotating block 241 is fixedly installed on the top of the fourth rotating rod 246, a circumferential 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, the extruding piece 28 is fixedly installed on the upper portion of the fifth rotating rod 247, and the top of the fifth rotating rod 247 is fixedly connected with the stop block 29.

[0044] It needs explanation, the rotating electrical machine 245 starts, and the output shaft of rotating electrical machine 245 is engaged with the tooth 244, thereby driving the fourth rotating rod 246 to rotate, and the fourth rotating rod 246 top fixed mounting has the arc rotating block 241, thereby driving the arc rotating block 241 to rotate, and rotating electrical machine 245 is intermittent start, therefore drive the arc rotating block 241 intermittent start, and the material falls into the inside of arc rotating block 241, then through the rotation centrifugal force under the action of chute 242 is transported to the top of the blanking block 23, and the top of the fifth rotating rod 247 is provided with the extruding piece 28, thereby driving the extruding piece 28 to lift and press and fluctuate the material on the top of blanking block 23, thereby making the material particle to be crushed, and the arc rotating block 241 can be set as heating block, thereby when the material falls into the inside of arc rotating block 241, carries out the temperature rise and removes moisture, prevents the phenomenon of water absorption to cause caking and adhesion, improves the uniformity of material particle, and the caked material is more easily changed into powder after rotating extrusion, solves the problem of powder caking.

[0045] As Figures 6 to 8 The extruding piece 28 includes the second rotating rod 281 fixedly installed on the upper portion of the fifth rotating rod 247, the upper and lower ends of the second rotating rod 281 are symmetrically provided with the second limiting plate 282 and the bottom limiting block 284, the bottom limiting block 284 is in sliding connection with the second rotating rod 281, the outer wall of the second limiting plate 282 and the bottom limiting block 284 is rotatably installed with the third connecting block 285 and the fourth connecting block 286 which are symmetrically arranged, the bottom of the second limiting plate 282 and the top of the bottom limiting block 284 are provided with the limiting spring 283, the end portion of the third connecting block 285 away from the second rotating rod 281 is in rotary connection with the fourth connecting block 286, the end portion of the fourth connecting block 286 away from the second rotating rod 281 is rotatably installed with the third rotating plate 2891, the bottom of the third rotating plate 2891 is fixedly installed with the fifth fixed plate 2892, and the inside of the fifth fixed plate 2892 is rotatably installed with the extruding rotating ring 2896.

[0046] It should be noted that the fifth rotating rod 247 rotates to drive the second rotating rod 281 to rotate, and the second rotating rod 281 drives the outer second limiting plate 282 and the bottom limiting block 284 to rotate. When the second rotating rod 281 does not rotate, the bottom limiting block 284 is located at the bottom of the second rotating rod 281 under the action of the limiting spring 283. When the fifth rotating rod 247 rotates to drive the second rotating rod 281 to rotate, the fourth connecting block 286 is subjected to the rotating force, and the end portion of the fourth connecting block 286 is connected with the fifth fixed plate 2892 and the extrusion rotating ring 2896. In the acceleration process of intermittent rotation, the bottom limiting block 284 rises, and under the action of the third connecting block 285, the fifth fixed plate 2892 at the end portion of the fourth connecting block 286 descends, thereby extruding the powder material gathered on the top of the discharging block 23, so that the uniformity of the powder particles is better, and the problems of powder particle adhesion are reduced. The connection position of the second rotating rod 281 and the second limiting plate 282 is provided with a torsion spring, and the connection position of the second rotating rod 281 and the bottom limiting block 284 is also provided with a torsion spring. When the fifth rotating rod 247 stops rotating, the second rotating rod 281 also stops rotating, and the second limiting plate 282 and the bottom limiting block 284 still 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 fixed plate 2892 reset, thereby returning to the state as shown in Figure 6 .

[0047] As shown in Figures 6 to 8 , the extruding piece 28 comprises a fourth fixed block 287 fixedly installed at the side of the fourth connecting block 286, a second sliding rod 288 is slidably installed in the fourth fixed block 287, a first connecting rod 289 is rotatably installed at the end portion of the second sliding rod 288 away from the second rotating rod 281, the end portion of the first connecting rod 289 is rotatably connected with the upper portion of the third rotating plate 2891, and the end portion of the second sliding rod 288 close to the second rotating rod 281 is rotatably connected with the end portion of the third connecting block 285.

[0048] It should be noted that when the end portion of the fourth connecting block 286 away from the second rotating rod 281 rises and falls, the fifth fixed plate 2892 is in a state of rotatable connection with the end portion of the fourth connecting block 286, so the direction of the fifth fixed plate 2892 is not easy to control. Therefore, the fourth fixed block 287 and the second sliding rod 288 are arranged at the side of the fourth connecting block 286. When the third connecting block 285 rotates, the second sliding rod 288 can be driven to extend, and the second sliding rod 288 drives the first connecting rod 289 to move close to the fifth fixed plate 2892, thereby achieving the purpose of adjusting the direction of the fifth fixed plate 2892, so that the powder on the top of the discharging block 23 can be extruded and broken during the rising and falling process of the fifth fixed plate 2892.

[0049] As shown inFigures 6 to 8 As shown, the bottom end of the second limiting plate 282 is fixedly installed with symmetrically arranged fourth sliding rods 2894, the outside of the fourth sliding rods 2894 is slidingly installed with a scraper 2893, and the top of the scraper 2893 is provided with a third spring 2895.

[0050] It should be noted that the scraper 2893 slides on the outside of the fourth sliding rod 2894, and when the fifth fixed plate 2892 rotates around the second rotating rod 281 as the center, the scraper 2893 is in contact with the top of the discharging block 23, thereby pushing the powder material, so that the powder material can fall into the inside of the discharging block 23 from the discharging hole 231, and then be transported by the first rotating column 25 and the winding wheel 26.

[0051] As shown in the figure, Figures 4 to 7 The connecting position of the second limiting plate 282 and the second rotating rod 281 is provided with a ratchet structure, and the connecting position of the bottom limiting block 284 and the second rotating rod 281 is provided with a ratchet structure.

[0052] It should be noted that the rotation of the second rotating rod 281 can drive the rotation of the second limiting plate 282, so when the second rotating rod 281 stops rotating, the second limiting plate 282 can still continue to rotate due to inertia, and the bottom limiting block 284 and the second rotating rod 281 are in sliding connection, so that the bottom limiting block 284 can slide in the inside of the second rotating rod 281 during rotation.

[0053] A feeding method of a single crystal preparation active feeding hopper, which adopts the single crystal preparation active feeding hopper described above, comprises the following steps:

[0054] Step one, first start the vibrating member 14 and the centrifugal rotating member 24, the vibrating member 14 drives the discharging bin 1 and the screening vibrating hopper 2 to vibrate, the material is put into the inside of the top opening of the discharging bin 1, the vibrating member 14 drives the discharging bin 1 to vibrate, thereby driving the vibrating block 15 and the screening vibrating hopper 2 to vibrate, so that the material is transported to the inside of the screening vibrating hopper 2 from the discharging bin 1, thereby completing the effect of hopper vibration and discharging;

[0055] Step two, when the material falls to the inside of the centrifugal rotating member 24 on the inside limiting block 27, the centrifugal rotating member 24 is started intermittently, the centrifugal rotating member 24 rotates, so that the falling material is subjected to centrifugal force and is transported to the top of the discharging block 23, and the centrifugal rotating member 24 drives the extruding member 28 to rotate during rotation, the extruding member 28 rotates to extrude the material on the top of the discharging block 23 by centrifugal force, thereby extruding and crushing the caked or adhered material, thereby completing the effect of material extrusion.

[0056] Step three, then with the motor driving the first rotating column 25 rotates, and the extrusion piece 28 in the process of extrusion will material sent to the inside of the discharge hole 231, so as to fall into the lower part of the discharge block 23, so that the material and the first rotating column 25; and the contact wheel 26 contact, and the first rotating column 25 rotates driving the contact wheel 26 rotates, thereby the material is transported out of the inside of the screening vibration hopper 2, completes the process of the hopper vibration material discharge.

[0057] The above describes the embodiments of the present application, but the present application is not limited to the above specific embodiments, the above specific embodiments are only illustrative, but not limited, and those skilled in the art can make many forms under the inspiration of the present embodiment, which all belong to the protection of the present application.

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). The internal limiting block (27) is provided with a separation mechanism. Centrifugal rotating component (24) is provided with an extrusion component (28). The centrifugal rotating component (24) rotates and drives the extrusion component (28) to rotate, extruding 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. 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 component (24), and a feeding hole (231) is provided on the top of the feeding block (23). The feeding hole (231) is used to connect the top of the feeding hole (231) with the bottom of the internal limiting block (27). The centrifugal rotating component (24) includes a first limiting block (243) fixedly installed on the 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). The first limiting block (243) A rotary motor (245) is fixedly installed on the outer wall of the device. 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 piece (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).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... A limit spring (283) is provided at the top of the bottom limiting block (284). 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). A third rotating plate (2891) is rotatably mounted on the end of the fourth connecting block (286) on the side away from the second rotating rod (281). A fifth fixing plate (2892) is fixedly mounted on the bottom of the third rotating plate (2891). A compression rotating ring (2896) is rotatably mounted inside the fifth fixing plate (2892).

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 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).

5. The feeding hopper for active feeding in single crystal preparation according to claim 4, 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).

6. The feeding hopper for active feeding in single crystal preparation according to claim 5, 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.

7. A feeding method for an active feeding hopper for single crystal preparation as described in claim 6, 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.

Images