A nano-powder screw circulating motion device

Abstract

The application relates to the technical field of powder processing, in particular to a nano-powder screw circulating motion device which comprises a stock bin, a material pipe located in the stock bin, the material pipe being used for transmitting the powder at the bottom of the stock bin to the top of the material pipe, a bulk material plate fixedly connected with the material pipe, the bulk material plate being located at the top of the material pipe and being used for dispersing the powder transmitted out of the material pipe, the nano-powder at the bottom of the stock bin is forced to be transported to the top of the stock bin by a screw, the powder is uniformly spread on the top of the bulk material plate, the uniformity of exposure is increased by destroying the soft agglomeration of particles and forcibly turning and jumping the particles, compared with the traditional blade stirring, drum stirring, ultrasonic vibration disc and other modes, the volume is saved, the circulation is uniform and stable, and the processing capacity is large, so that the device is more suitable for the circulation processing of nano-powder, especially suitable for sputtering, evaporation and other processing modes of the nano-powder under vacuum conditions, and the practicability and multifunctionality of the device are embodied.

Description

Technical Field

[0001] This invention relates to the field of powder processing technology, and in particular to a screw circulating motion device for nanoparticles. Background Technology

[0002] When modifying or mixing powders, it is necessary to use methods such as stirring, fluidized bed, and ultrasound to ensure that the powders are fully and uniformly dispersed. However, when the powder size is reduced to nanometers, due to reasons such as being loose, lightweight, and bridging, nanopowders are difficult to move well through shearing, inertia, gravity, etc.

[0003] A search revealed a high-efficiency powder mixing device (publication number CN211329125U), comprising a support frame, a mixing tank fixed in the middle of the support frame, a tank cover, and a mixing assembly. The mixing assembly is characterized by comprising a horizontal mixing assembly and a circulating mixing assembly. The horizontal mixing assembly includes a cylinder passing through the tank cover and extending into the mixing tank, mixing blades evenly distributed around the cylinder, and a horizontal mixing motor drivenly connected to the cylinder. The circulating mixing assembly includes a mixing screw, a material guide hole, a material distribution hood located below the tank cover, a rotating seat, at least two bearings, and a circulating mixing motor drivenly connected to the mixing screw. However, the circulating mixing device only has the function of conveying powder; the function of mixing powder requires an additional drive device, which not only wastes energy but also causes the material guide hole to become blocked due to powder bridging, preventing smooth material flow. Summary of the Invention

[0004] To address the aforementioned problems in the existing technology, a nanoparticle screw circulating motion device is provided.

[0005] The specific technical solution is as follows:

[0006] Design a screw cyclic motion device for nanopowder, including:

[0007] silos;

[0008] A feed pipe, located inside the hopper, is used to transport powder from the bottom of the hopper to the top of the feed pipe;

[0009] A material distribution plate is fixedly connected to the material pipe. The material distribution plate is located at the top of the material pipe and is used to disperse the powder material delivered from the material pipe.

[0010] A transmission device is fixedly connected to the hopper. The transmission device is located below the material pipe and is used to drive the material distribution plate to generate vibration through the material pipe.

[0011] Preferably, the top of the material tube has a feeding port, and the inside of the material tube has a screw.

[0012] Preferably, the bottom of the hopper is fixedly connected to a base box, and a drive motor is provided inside the base box. The drive motor is movably connected to the screw.

[0013] Preferably, the hopper is internally connected to a support structure by welding, and the support structure is symmetrically distributed.

[0014] Preferably, the material tube has a groove on its outside, and the end of the support away from the hopper extends into the groove.

[0015] Preferably, the transmission device includes:

[0016] A turntable is connected to the screw, and a first protrusion is provided on the top of the turntable;

[0017] A transmission disc is located above the turntable. A second protrusion is provided at the bottom of the transmission disc. When the second protrusion at the bottom of the transmission disc contacts the first protrusion, it moves upward under force.

[0018] The transmission rod is fixedly connected to the transmission disc and is used to drive the material tube to move longitudinally back and forth.

[0019] Preferably, an elastic element is fixedly connected to the top of the bracket, and the elastic element is located inside the groove.

[0020] Preferably, the bracket is provided with limiting plates on both sides, and the limiting plates are movably connected to the hopper.

[0021] Preferably, the bulk material plate is umbrella-shaped from top to bottom.

[0022] Preferably, the top of the hopper is movably connected to a cover plate, the screw is externally fixedly connected to a fixed plate, the two sides of the fixed plate are connected to a stirring rod by welding, and the top of the fixed plate is provided with a third protrusion.

[0023] The above technical solution has the following advantages or beneficial effects:

[0024] 1. A screw is installed inside the feed pipe, which is located inside the hopper. The feed pipe is used to transfer the powder from the bottom of the hopper to the top. A distribution plate is fixedly connected to the feed pipe and is located at the top of the feed pipe. The screw forces the nanoparticles from the bottom of the hopper to the top, where they are evenly spread on the distribution plate. Vibration breaks up soft agglomerates of particles and forces the particles to tumble and jump, increasing the uniformity of exposure. Compared with traditional methods such as blade stirring, drum stirring, and ultrasonic vibrating disks, this invention saves volume, provides uniform and stable circulation, and has a large processing capacity. Therefore, it is more suitable for the circulation processing of nanoparticles, especially for processing nanoparticles under vacuum conditions by sputtering, vapor deposition, etc., demonstrating the practicality and multifunctionality of this device.

[0025] 2. A turntable is connected to a screw, with a first protrusion on the top of the turntable. A transmission disc is located above the turntable, with a second protrusion on the bottom. When the second protrusion on the bottom of the transmission disc contacts the first protrusion, it moves upward under force. A transmission rod is fixedly connected to the transmission disc and is used to drive the material tube to move longitudinally back and forth. A transmission device is further installed at the bottom of the material tube. The screw drives the turntable to rotate, causing the turntable to vibrate by lifting the transmission disc through the top protrusion during rotation. The vibrating disc transmits the vibration to the material plate through the transmission rod, providing power to the material plate. This not only saves the need to install an external vibration motor but also demonstrates the linkage performance of this device.

[0026] 3. An elastic element is fixedly connected to the top of the bracket. The elastic element is located inside the groove. Further brackets are set on both sides of the material tube, and an elastic element is set at the connection. This not only supports the material tube, but also transmits vibration while the elastic element contracts under force to maintain the stability of the bracket. This improves the stability of the material tube connection of this device. Attached Figure Description

[0027] Embodiments of the invention will be described more fully with reference to the accompanying drawings. However, the drawings are for illustration and explanation only and do not constitute a limitation on the scope of the invention.

[0028] Figure 1 This is a schematic diagram of the structure of a screw circulating motion device for nanoparticles proposed in this invention;

[0029] Figure 2 This is a schematic diagram of the internal structure of a nanopowder screw circulating motion device proposed in this invention;

[0030] Figure 3 This is a schematic diagram of the material distribution plate of a nanopowder screw circulating motion device proposed in this invention;

[0031] Figure 4 This is a schematic diagram of the transmission device of a screw circulating motion device for nanopowder proposed in this invention;

[0032] Figure 5 This is a schematic diagram of the material tube structure of a screw circulating motion device for nanopowder proposed in this invention;

[0033] Figure 6 This is a schematic diagram of the internal structure of the groove in a nanopowder screw circulating motion device proposed in this invention;

[0034] Figure 7 This is a schematic diagram of the stirring rod of a screw circulating motion device for nanopowder proposed in this invention.

[0035] The above-mentioned reference numerals indicate: 1. Material cylinder; 2. Bottom box; 3. Material pipe; 4. Distributor plate; 5. Transmission device; 51. Turntable; 52. First protrusion; 53. Transmission disc; 54. Second protrusion; 55. Transmission rod; 6. Drive motor; 7. Screw; 8. Support; 9. Feed port; 10. Groove; 11. Elastic element; 12. Limiting plate; 13. Cover plate; 14. Stirring rod; 15. Fixing disc; 16. Third protrusion. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0038] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the scope of the invention.

[0039] Reference Figure 1-6 A screw-driven circulating motion device for nanopowder includes: a hopper 1; a feed pipe 3 located inside the hopper 1, used to transport powder from the bottom of the hopper 1 to the top of the feed pipe 3; a dispersing plate 4 fixedly connected to the feed pipe 3, located at the top of the feed pipe 3, used to disperse the powder transmitted from the feed pipe 3; and a transmission device 5 fixedly connected to the hopper 1, located below the feed pipe 3, used to drive the dispersing plate 4 to generate vibration through the feed pipe 3, and to force the nanopowder from the bottom of the hopper to the top through the screw 7, where it is evenly spread on the top dispersing plate 4. The vibration breaks up soft agglomerates of particles and forces the particles to tumble and jump, increasing the uniformity of exposure. Compared with traditional methods such as blade impeller stirring, drum stirring, and ultrasonic vibrating disks, this invention saves volume, provides uniform and stable circulation, and has a large processing capacity, making it more suitable for the circulating processing of nanopowders. It is especially suitable for processing nanopowders under vacuum conditions by sputtering, vapor deposition, etc., demonstrating the practicality and multifunctionality of this device.

[0040] The top of the feed tube 3 is provided with a feed port 9, and the inside of the feed tube 3 is provided with a screw 7. The screw 7 rotates upward through an external spiral disc to transport powder.

[0041] The bottom of the hopper 1 is fixedly connected to the bottom box 2. The bottom box 2 is equipped with a drive motor 6. The drive motor 6 is movably connected to the screw 7 and is used to provide power to the screw 7.

[0042] The inside of the hopper 1 is connected to the support 8 by welding. The support 8 is symmetrically distributed and is used to support the material pipe 3, so that the material pipe 3 is suspended inside the hopper 1.

[0043] The material pipe 3 has a groove 10 on its outside. The end of the support 8 away from the material bin 1 extends into the groove 10. The groove 10 is used to provide a support point for the support 8.

[0044] The transmission device 5 includes: a turntable 51 connected to a screw 7, with a first protrusion 52 on the top of the turntable 51; a transmission disc 53 located above the turntable 51, with a second protrusion 54 on the bottom of the transmission disc 53, which moves upward under force when it contacts the first protrusion 52; and a transmission rod 55 fixedly connected to the transmission disc 53, which drives the material tube 3 to move longitudinally back and forth. Furthermore, a transmission device 5 is set at the bottom of the material tube 3, which drives the turntable 51 to rotate through the screw 7. During the rotation of the turntable 51, the top protrusion of the turntable 51 lifts the transmission disc 53 to generate vibration. The vibration disc transmits the vibration to the material plate 4 through the transmission rod 55, providing power to the material plate 4. This not only saves the need to install an external vibration motor, but also demonstrates the linkage performance of this device.

[0045] The top of the bracket 8 is fixedly connected to the elastic element 11, which is located inside the groove 10. Furthermore, the bracket 8 is set on both sides of the material tube 3, and the elastic element 11 is set at the connection. This not only supports the material tube 3, but also transmits vibration while the elastic element 11 contracts under force to maintain the stability of the bracket 8, thus improving the stability of the connection of this device to the material tube 3.

[0046] Limiting plates 12 are provided on both sides of the support 8. The limiting plates 12 are movably connected to the hopper 1. The limiting plates 12 are connected to the cylinder to provide longitudinal movement limit for the support 8.

[0047] The bulk material plate 4 is umbrella-shaped from top to bottom, and the outside of the bulk material plate 4 is sloping down, which can guide the powder at the top to be discharged.

[0048] The top of the hopper 1 is movably connected to the cover plate 13, and the screw 7 is externally fixedly connected to the fixed plate 15. The two sides of the fixed plate 15 are connected to the stirring rod 14 by welding. The top of the fixed plate 15 is provided with a third protrusion 16. The cover plate 13 and the hopper 1 are connected by a rotating shaft, and the cover plate 13 can be rotated to open and close the hopper 1. The stirring rod 14 is used to stir the nanoparticles at the bottom of the hopper to prevent the nanoparticles from bridging and accumulating at the conical opening.

[0049] Working principle: Pour the powder into the inside of the hopper 1, cover it with the cover plate 13, and use the external control terminal to turn on the drive motor 6. The drive motor 6 drives the screw 7 to rotate. During the rotation of the screw 7, the powder at the bottom of the hopper 1 is transported upward through the external spiral disc. The powder moves upward with the transport of the screw 7 and moves out from the feed port 9. After exiting the feed pipe 3, it scatters on the top of the distribution plate 4. During the rotation of the screw 7, the turntable 51 inside the transmission device 5 rotates. During the rotation of the turntable 51, the powder moves upward through the external spiral disc 1. The first protrusion 52 and the second protrusion 54 at the top contact and push the transmission disc 53 upward. The transmission disc 53 drives the material pipe 3 at the top to move longitudinally through the transmission rod 55. The material distribution plate 4 at the top of the material pipe 3 generates a vibration to shake and disperse the powder at the top. The dispersed powder tilts and falls to the bottom of the hopper 1. The powder is then fed again by the screw 7, so that the powder is circulated and dispersed. When the screw 7 rotates, it drives the stirring rod 14 to rotate through the fixed plate 15 to stir the powder at the bottom of the cylinder 1.

[0050] The above are merely preferred embodiments of the present invention and are not intended to limit the implementation methods and protection scope of the present invention. Those skilled in the art should recognize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present invention should be included within the protection scope of the present invention.

Claims

1. A screw-type circulating motion device for nanopowder, characterized in that: include; silos; A feed pipe, located inside the hopper, is used to transport powder from the bottom of the hopper to the top of the feed pipe; A material distribution plate is fixedly connected to the material pipe. The material distribution plate is located at the top of the material pipe and is used to disperse the powder material delivered from the material pipe. A transmission device is fixedly connected to the hopper. The transmission device is located below the material pipe. The transmission device is used to drive the material distribution plate to generate vibration through the material pipe. The top of the material tube is provided with a feeding port, and the inside of the material tube is provided with a screw. The bottom of the hopper is fixedly connected to a base box, and a drive motor is installed inside the base box. The drive motor is movably connected to the screw. The silo is internally connected to a support structure by welding, and the support structure is symmetrically distributed. The material tube has a groove on its outside, and the end of the support away from the material hopper extends into the groove; The transmission device includes: A turntable is connected to the screw, and a first protrusion is provided on the top of the turntable; A transmission disc is located above the turntable. A second protrusion is provided at the bottom of the transmission disc. When the second protrusion at the bottom of the transmission disc contacts the first protrusion, it moves upward under force. A transmission rod is fixedly connected to the transmission disc, and the transmission rod is used to drive the material tube to move longitudinally reciprocally; An elastic element is fixedly connected to the top of the bracket, and the elastic element is located inside the groove; The support frame is provided with limiting plates on both sides, and the limiting plates are movably connected to the hopper; The top of the hopper is movably connected to a cover plate, the screw is externally fixed to a fixed plate, the two sides of the fixed plate are connected to a stirring rod by welding, and the top of the fixed plate is provided with a third protrusion.

2. The nanopowder screw circulating motion device according to claim 1, characterized in that: The bulk material plate is umbrella-shaped from top to bottom.

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