Single-walled carbon nanotube dynamic receiving device with integrated gas protection packaging function

Abstract

The present invention relates to the field of single-walled carbon nanotube technology, and in particular to a single-walled carbon nanotube dynamic material collection device with integrated gas protection packaging function, comprising a base container, an internal integrated gas protection packaging mechanism for achieving vacuum adsorption and initial nitrogen filling in the pre-filling stage, air curtain isolation during the filling process, and air curtain protection during heat sealing; a dynamic material collection mechanism, the bottom of which is connected to a bulk material mechanism, through which the bulk material mechanism disperses and outputs the powder to a quantitative material distribution mechanism at the bottom, which is connected to the gas protection packaging mechanism via a flexible connection mechanism; a vibration amplification mechanism is disposed between the bulk material mechanism and the base container, and promotes uniform dispersion and accelerated conveying of the powder through high-frequency vibration. The present invention reduces the oxygen content in the bag to below 0.1% through a full-process gas protection design. Combined with the quantitative material distribution and vibration dispersion mechanism, it achieves precise metering, uniform conveying, and highly airtight packaging of single-walled carbon nanotube powder, effectively solving the problems of powder oxidation, agglomeration, and contamination.

Description

Technical Field

[0001] The present invention relates to the technical field of single-walled carbon nanotubes, and in particular to a single-walled carbon nanotube dynamic receiving device with integrated gas protection packaging function. Background Art

[0002] Single-walled carbon nanotubes (SWCNTs), as nanomaterials with excellent mechanical, electrical, and chemical properties, hold broad application prospects in electronic devices, composite materials, energy storage, and other fields. Due to their extremely high specific surface area and chemical activity, SWCNT powders are susceptible to reaction with oxygen and moisture in the air during packaging and storage, leading to performance degradation. Furthermore, van der Waals forces between powder particles can easily cause agglomeration, affecting dispersion uniformity during subsequent use. Therefore, packaging for SWCNT powders must meet the requirements of high airtightness, a low-oxygen environment, and uniform powder delivery.

[0003] Currently, traditional powder packaging mechanisms have the following technical deficiencies when processing single-walled carbon nanotubes:

[0004] Insufficient air protection measures: Existing packaging equipment mostly uses a simple nitrogen filling process, which is unable to form a continuous air curtain protection throughout the entire process of pre-filling, filling and heat sealing. As a result, it is difficult to reduce the oxygen content in the package to below 0.1%, and the powder is prone to oxidation and deterioration.

[0005] Low quantitative feeding accuracy: Due to the poor fluidity and easy agglomeration of single-walled carbon nanotube powder, traditional feeding mechanisms are difficult to achieve accurate quantitative weighing, and problems such as material accumulation and blockage are prone to occur during the transportation process, affecting packaging efficiency and consistency.

[0006] Low dynamic material collection efficiency: Conventional material collection devices lack an effective vibration dispersion mechanism. Powders tend to form lumps during the falling process, resulting in uneven output and unable to meet continuous production requirements.

[0007] The packaging process has a high risk of contamination: During the filling process, external dust and water vapor can easily invade the packaging bag, affecting the purity of the product. Heat sealing may cause oxidation of the powder at the seal. Summary of the Invention

[0008] The present invention aims to solve the above-mentioned defects and provides a single-walled carbon nanotube dynamic collecting device with integrated gas protection packaging function.

[0009] To overcome the shortcomings of the prior art, the present invention solves the technical problems by adopting a technical solution: a single-walled carbon nanotube dynamic receiving device with integrated gas protection packaging function, comprising a base receiving box, within which an integrated gas protection packaging mechanism is used to achieve vacuum adsorption and initial nitrogen filling in the pre-filling stage of single-walled carbon nanotube powder packaging, air curtain isolation during the filling process, and air curtain protection during heat sealing packaging;

[0010] A dynamic material receiving mechanism, the bottom of which is connected to the dispersing mechanism, for dispersing and outputting the received single-walled carbon nanotube powder through the dispersing mechanism. A quantitative dispensing mechanism is provided at the bottom of the dispersing mechanism for quantitatively weighing and dispersing the powder. The quantitative dispensing mechanism is connected to the gas protection packaging mechanism via a flexible connecting mechanism.

[0011] The vibration amplifying mechanism is arranged between the bulking mechanism and the base containing box, and promotes the uniform dispersion and accelerated conveying of powder during the conveying process of the dynamic material collecting mechanism, bulking mechanism and quantitative material distributing mechanism through high-frequency vibration.

[0012] Further improvements include the dynamic material collecting mechanism comprising a tank body, a negative pressure connecting part located at the top of the tank body, and a feed flange end located on the side of the tank body, the bottom of the tank body is an open structure, a negative pressure cylinder is vertically arranged inside the tank body, and a spiral guide plate is wound around the tank body with the negative pressure cylinder as the center, and the last spiral surface of the spiral guide plate is densely provided with lead-out holes, a filter cylinder is arranged at the top of the negative pressure cylinder, the negative pressure connecting part is connected to the inner cavity of the filter cylinder, and the inner wall of the negative pressure cylinder is evenly provided with dust collection pores for adsorbing carbon nanotube powder floating in the air.

[0013] Further improvements include that the bulk material mechanism includes a bulk material box, the top of the bulk material box is provided with multiple blanking outlets for receiving powder dropped from the spiral guide plate and a central blanking outlet for receiving powder dropped from the filter cartridge, the bottom is provided with multiple guide outlet flange ends for guiding out the powder, the guide outlet flange ends are connected to the quantitative material distribution mechanism, two opening and closing cylinders are arranged opposite to each other on the top of the bulk material box, the output ends of the opening and closing cylinders are downwardly passed into the bulk material box and are connected to the lifting plate, the blanking sealing part and the central sealing part integrated on the lifting plate respectively block the blanking outlet and the central blanking outlet, and the height of the central sealing part is higher than that of the blanking sealing part.

[0014] A further improvement includes that the top ends of the central blocking portion and the blanking blocking portion both adopt a truncated cone structure.

[0015] A further improvement includes that the bottom of the bulk material box is recessed downward corresponding to the position of the guide outlet flange end to form an arc-shaped recessed area, and the guide outlet flange end is arranged at the geometric lowest point of the arc-shaped recessed area.

[0016] Further improvements include that the quantitative dispensing mechanism includes a dispensing box, a dispensing moving cavity is opened inside the dispensing box, and a dispensing inlet flange end connected to the dispensing moving cavity is provided on the top of the dispensing box, and a dispensing outlet flange end A and a dispensing outlet flange end B are provided on the bottom, the dispensing outlet flange end A and the dispensing outlet flange end B are both connected to the dispensing moving cavity, and the dispensing moving cavity has a dispensing accommodating block A and a dispensing accommodating block B with exactly the same structure, and the dispensing pneumatic rod A and the dispensing pneumatic rod B are symmetrically provided on both sides of the dispensing box. Pneumatic rod B, the output ends of the material dividing pneumatic rod A and the material dividing pneumatic rod B are respectively inserted into the material dividing moving cavity to push the material dividing accommodating block A and the material dividing accommodating block B to move synchronously in the material dividing moving cavity, and a weighing accommodating cavity connected to the material dividing moving cavity is provided at the bottom of the material dividing box and directly below the material dividing inlet flange end, and a weighing unit for real-time weighing of the material dividing accommodating block is provided in the weighing accommodating cavity, and the material dividing outlet flange end A and the material dividing outlet flange end B are simultaneously connected to the collecting pipe.

[0017] Further improvements include that the material distribution accommodating block A comprises a block, and a quantitative accommodating hole is opened vertically through the center of the block, a hidden groove is opened on the bottom surface of the block with the central axis of the quantitative accommodating hole as the reference, and a rotating bottom plate is rotatably arranged in the hidden groove to close or open the bottom of the quantitative accommodating hole.

[0018] Further improvements include that the weighing unit includes a sensor mounting plate and a weighing bearing plate located in the weighing accommodating cavity, the sensor mounting plate is detachably arranged at the bottom of the material distribution box, and a plurality of pressure sensors for supporting the weighing bearing plate are arranged on the sensor mounting plate, and the top surface of the weighing bearing plate is flush with the bottom wall of the material distribution moving cavity.

[0019] Further improvements include that the vibration amplification mechanism includes a vibration motor installed on the bulk material mechanism and multiple groups of elastic support units evenly distributed between the bulk material mechanism and the base containing box, each group of the elastic support units includes a vibration guide cylinder vertically arranged on the base containing box, a vibration support rod and a strong spring placed in the vibration guide cylinder, the top of the vibration support rod is connected to the lower part of the bulk material mechanism, and the bottom end extends into the inner hole of the vibration guide cylinder, and the two ends of the strong spring respectively abut the bottom end of the vibration support rod and the bottom wall of the vibration guide cylinder.

[0020] Further improvements include that a large guide column provided at the lower part of the bulk material mechanism is docked with an inner hole of a guide cylinder seat provided at the top of the base receiving box, and the vibration motor is installed at the end of the large guide column.

[0021] The cam is secured to the bottom of the main box and is secured to the bottom of the bag when the cam is in a closed position. The cam is secured to the bottom of the main box and is in a closed position when the cam is in a closed position.

[0022] A transition cavity and a plurality of air inlet and outlet channels are provided in the expansion column, a discharge channel is provided axially through the center of the expansion column, the transition cavity is connected to the discharge channel via the air inlet and outlet channels, and a quick-change connector connected to the transition cavity is installed on the expansion column;

[0023] An air barrier unit is integrated in the main fixing box to form an air barrier between the extension tube and the inner bearing tube.

[0024] A further improvement includes that the clamping mechanism includes clamping cylinders symmetrically arranged on the side surfaces of the inner bearing cylinder, and the output ends of the clamping cylinders are respectively connected to corresponding clamping plates.

[0025] A further improvement includes that the heat sealing unit comprises a heat sealing cylinder and a heat sealing part symmetrically arranged on the outer supporting cylinder, and the output ends of the heat sealing cylinder are respectively connected to the corresponding heat sealing parts.

[0026] Further improvements include that the air barrier unit includes an air barrier box arranged in the main fixed box and multiple air nozzles arranged on the air barrier box, the air nozzles pass through the main fixed box and extend precisely to the inside of the inner supporting tube, and a special joint is configured on the air barrier box.

[0027] The beneficial effects of the present invention are as follows: this design realizes atmosphere protection of the entire process of single-walled carbon nanotube powder packaging through the gas protection packaging mechanism integrated in the base holding box, including vacuum adsorption and initial nitrogen filling in the pre-filling stage, air curtain isolation in the filling process and air curtain protection during heat sealing packaging, reducing the oxygen content in the bag to below 0.1%, eliminating the risk of oxidation, and avoiding pollution by water vapor and dust; the dynamic material collection mechanism cooperates with the bulk material mechanism and the quantitative material distribution mechanism, and realizes uniform dispersion and precise quantitative output of powder through the stepped sealing design of spiral guide plate, negative pressure adsorption and opening and closing cylinder; the vibration amplification mechanism promotes uniform dispersion and accelerated transportation of powder during the conveying process through high-frequency vibration, avoiding agglomeration and accumulation; the quantitative material distribution mechanism adopts a double-station alternating weighing design, combined with real-time monitoring of pressure sensors, to improve the distribution efficiency and metering accuracy; the expansion column, air barrier unit and heat sealing unit of the gas protection packaging mechanism work together to ensure high air tightness and anti-pollution ability of the packaging process, and at the same time the flexible connection mechanism effectively isolates vibration to ensure stable operation of each functional module. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will be further described below with reference to the accompanying drawings and examples.

[0029] Figure 1 It is a front cross-sectional view of the present invention;

[0030] Figure 2 This is a cross-sectional view of the assembly of the large guide post and the wire tube seat in the present invention;

[0031] Figure 3 is a top view of the lifting plate of the present invention;

[0032] Figure 4 It is a front cross-sectional view of the gas protection packaging mechanism of the present invention;

[0033] Figure 5 It is a left side view of the gas protection packaging mechanism of the present invention;

[0034] Figure 6 This is a bottom view of the bulk material box of the present invention;

[0035] Figure 7 This is a main cross-sectional view of the material distribution and accommodation block in the present invention;

[0036] Figure 8 This is a main cross-sectional view of the quantitative material distribution mechanism of the present invention;

[0037] Figure 9 It is a front cross-sectional view of the elastic support unit in the present invention;

[0038] In the figure, 1-base containing box, 2-vibration amplification mechanism, 3-quantitative material distribution mechanism, 4-bulk material mechanism, 5-dynamic material collection mechanism, 6-flexible connection mechanism, 7-gas protection packaging mechanism;

[0039] 201-vibration guide cylinder, 202-vibration support rod, 203-strong spring, 204-vibration motor, 205-large guide column, 206-guide cylinder seat;

[0040] 301 - material collecting pipe, 302 - pressure sensor, 303 - sensor mounting plate, 304 - material distributing outlet flange end B, 305 - material distributing pneumatic rod B, 306 - material distributing accommodating block B, 307 - material distributing box, 308 - weighing bearing plate, 309 - material distributing inlet flange end, 310 - material distributing accommodating block A, 311 - material distributing moving chamber, 312 - material distributing pneumatic rod A, 313 - material distributing outlet flange end A, 314 - weighing accommodating chamber, 315 - block, 316 - rotating bottom plate, 317 - quantitative accommodating hole, 318 - hidden slot;

[0041] 401-opening and closing cylinder, 402-central blanking port, 403-blanking outlet, 404-blanking sealing portion, 405-lifting plate, 406-central sealing portion, 407-bulk material box, 408-guide outlet flange end, 409-arc-shaped recessed area;

[0042] 501- outlet hole, 502- spiral guide plate, 503- negative pressure cylinder, 504- negative pressure connection part, 505- filter cylinder, 506- feed flange end, 507- dust collection hole, 508- tank body;

[0043] 701- positioning and installation cylinder, 702- outer bearing cylinder, 703- inner bearing cylinder, 704- packaging bag clamping unit, 705- expansion column, 706- transition chamber, 707- discharge channel, 708- main fixing box, 709- column lifting unit, 710- inlet and outlet channels, 711- extension cylinder, 712- heat sealing unit, 713- air barrier unit, 714- packaging lifting unit;

[0044] 7041-clamping cylinder, 7042-clamping plate;

[0045] 7121-heat sealing unit, 7122-heat sealing cylinder;

[0046] 7131-Air nozzle, 7132-Air barrier box. DETAILED DESCRIPTION

[0047] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art without creative effort based on the embodiments of the present invention are within the scope of protection of the present invention.

[0048] refer to Figure 1 A single-walled carbon nanotube dynamic receiving device with integrated gas protection packaging function includes a base container 1, which has an integrated gas protection packaging mechanism 7 inside. The device is used to achieve atmosphere protection throughout the entire process of packaging single-walled carbon nanotube powder, including vacuum adsorption and initial nitrogen filling in the pre-filling stage, air curtain isolation during the filling process, and air curtain protection during heat sealing. This prevents moisture, dust, and oxygen from entering the packaging bag, ensuring that the oxygen content in the bag is reduced to below 0.1%, eliminating the risk of oxidation at the root.

[0049] A dynamic material receiving mechanism 5, whose bottom is connected to the dispersing mechanism 4, is used to disperse and output the received single-walled carbon nanotube powder through the dispersing mechanism 4. A quantitative dispensing mechanism 3 is provided at the bottom of the dispersing mechanism 4 for quantitatively weighing and dispersing the powder. The quantitative dispensing mechanism 3 is connected to the gas protection packaging mechanism 7 via a flexible connecting mechanism 6 to achieve accurate delivery of the weighed powder;

[0050] The vibration amplifying mechanism 2 is arranged between the bulking mechanism 4 and the base containing box 1, and promotes the uniform dispersion and accelerated transportation of powder during the transportation process of the dynamic material receiving mechanism 5, the bulking mechanism 4 and the quantitative distribution mechanism 3 through high-frequency vibration.

[0051] In this embodiment, reference Figure 1The dynamic material collecting mechanism 5 includes a tank body 508, a negative pressure connection part 504 located at the top of the tank body 508, and a feed flange end 506 located on the side of the tank body 508. The bottom of the tank body 508 is an open structure. A negative pressure cylinder 503 is vertically arranged inside the tank body 508, and a spiral guide plate 502 is wound around the negative pressure cylinder 503 in the tank body 508. In order to realize the dispersion of powder into the bulking mechanism 4, the last spiral surface of the spiral guide plate 502 is densely provided with lead-out holes 501, so that the powder that slides into this area falls evenly into the bulking mechanism 4 below through the lead-out holes 501, ensuring the uniformity of material input in the subsequent quantitative material distribution process. After the single-walled carbon nanotube powder enters the tank body 508 from the feed flange end 506 through pneumatic conveying, it slides down along the spiral guide plate 502 Falling, during this process, the vibration amplification mechanism 2 transmits vibration energy through the tank body 508, so as to promote the powder to be evenly distributed on the spiral guide plate 502, effectively avoiding the accumulation and agglomeration of powder. A filter cartridge 505 is arranged on the top of the negative pressure cylinder 503, and the negative pressure connection part 504 is communicated with the inner cavity of the filter cartridge 505. The inner wall of the negative pressure cylinder 503 is evenly provided with dust collecting pores 507 for adsorbing the carbon nanotube powder floating in the air. When the exhaust system is connected to the negative pressure connection part 504 through a pipeline to form a negative pressure environment, the floating powder generated during the falling process enters the negative pressure cylinder 503 through the dust collecting pores 507, and then adheres to the inner wall of the filter screen of the filter cartridge 505. The powder falls evenly into the bulking mechanism 4 through the outlet hole 501, thereby ensuring the uniformity of material input in the subsequent quantitative material distribution process.

[0052] In this embodiment, reference Figure 1 、 Figure 3 The bulking mechanism 4 includes a bulk box 407. The top of the bulk box 407 is provided with multiple discharge outlets 403 for receiving powder falling from the spiral guide plate 502, and a central discharge opening 402 for receiving powder falling from the filter cartridge 505. The bottom is provided with multiple guide outlet flanges 408 for guiding powder. The guide outlet flanges 408 are connected to the quantitative dispensing mechanism 3. Two opening and closing cylinders 401 are positioned opposite each other at the top of the bulk box 407. The output ends of the opening and closing cylinders 401 extend downward into the bulk box 407 and connect to the lifting plate 405. The lifting plate 405 is integrated with a discharge sealing portion 404 and a central discharge opening 402, respectively. The central discharge sealing portion 406 is higher than the discharge sealing portion 404, forming a stepped sealing structure. When the lifting plate 405 is driven down by the opening and closing cylinder 401, the blanking blocking part 404 first separates from the blanking outlet 403 to allow the powder to flow, while the central blocking part 406 still maintains a sealed state for the central blanking outlet 402, ensuring that the negative pressure environment in the negative pressure cylinder 503 is not affected by the bulking process.

[0053] In a further embodiment, the tops of both the central sealing portion 406 and the drop sealing portion 404 utilize a truncated cone structure, with the cone angle optimized to match the powder's sliding characteristics. When the SWNT powder falls onto the top of the sealing portion, the cone's slope disperses and guides the accumulated powder to the surrounding area, preventing localized accumulation above the sealing portion. In conjunction with the vibration amplification mechanism 2, the high-frequency vibrations generated by it are transmitted to the sealing portion through the bulk bin 407. This excitation causes powder adhering to the truncated cone's surface to slide down the cone at an accelerated rate, significantly improving powder drop efficiency and dispersion uniformity.

[0054] For further implementation, refer to Figure 6 The bottom of the bulk bin 407, corresponding to the location of the guide outlet flange end 408, is recessed downward to form an arcuate depression 409. Each guide outlet flange end 408 is positioned at the geometric lowest point of the arcuate depression 409. The curved profile of this arcuate guide area is optimized based on the powder flow characteristics. Under the high-frequency vibration generated by the vibration amplification mechanism 2, the single-walled carbon nanotube powder is driven by the combined force of inertia and vibration, automatically converging toward the center of the arcuate depression 409. The synergistic effect of gravity and vibration accelerates the flow toward the lowest guide outlet flange end 408. This design effectively prevents powder from accumulating at the bottom of the bulk bin 407, ensuring that the material, under vibration excitation, passes through the guide outlet flange end 408 in sequence and falls evenly and continuously into the quantitative conveying mechanism below, significantly improving the stability of the material distribution process and the efficiency of material transmission.

[0055] In this embodiment, reference Figure 8 The quantitative dispensing mechanism 3 includes a dispensing box 307, a dispensing moving chamber 311 is provided inside the dispensing box 307, and a dispensing inlet flange end 309 communicating with the dispensing moving chamber 311 is provided on the top of the dispensing box 307, and a dispensing outlet flange end A313 and a dispensing outlet flange end B304 are provided at the bottom. The dispensing outlet flange end A313 and the dispensing outlet flange end B304 are both communicated with the dispensing moving chamber 311, and the dispensing moving chamber 311 has a dispensing accommodating block A310 and a dispensing accommodating block B306 with identical structures. The dispensing box 307 has dispensing pneumatic rods A312 and B305 symmetrically provided on both sides. The output ends of the material dividing pneumatic rod A312 and the material dividing pneumatic rod B305 are respectively inserted into the material dividing moving chamber 311 to push the material dividing accommodating block A310 and the material dividing accommodating block B306 to move synchronously in the material dividing moving chamber 311. A weighing accommodating chamber 314 connected to the material dividing moving chamber 311 is provided at the bottom of the material dividing box 307 and directly below the material dividing inlet flange end 309, and a weighing unit for real-time weighing of the material dividing accommodating block is provided in the weighing accommodating chamber 314. The material dividing outlet flange end A313 and the material dividing outlet flange end B304 are simultaneously connected to the collecting pipe 301 to realize the output of powder together.

[0056] During operation, the pneumatic rod A312 and the pneumatic rod B305 work together to drive the pneumatic rod A310 and the pneumatic rod B306 to move back and forth synchronously: when the output end of the pneumatic rod A312 is extended, the pneumatic rod A310 is pushed to move directly below the pneumatic feed flange end 309 to receive the powder falling from the pneumatic feed flange end 309, while the weighing unit monitors its weight in real time. At the same time, the pneumatic rod B306 is synchronously pushed to the top of the pneumatic outlet flange end B304 to discharge the pre-loaded powder into the downstream channel. When the output end of the pneumatic rod B305 is extended, the system performs the reverse action: the pneumatic rod B306 moves to the bottom of the pneumatic feed flange end 309 to load powder and weigh it, while the pneumatic rod A310 moves to the top of the pneumatic outlet flange end A313 to unload the powder.

[0057] Through the above-mentioned double-station alternating working mode, the quantitative distribution mechanism 3 realizes the continuous and accurate measurement and distribution operation of the powder material.

[0058] For further examples, see Figure 7 The material distribution and accommodating block A310 includes a block 315, and a quantitative accommodating hole 317 is vertically penetrated through the center of the block 315, and its pore size is adapted to the fluidity parameters of the single-walled carbon nanotube powder. The bottom surface of the block 315 is provided with a hidden groove 318 based on the central axis of the quantitative accommodating hole 317, and a rotating bottom plate 316 is rotatably arranged in the hidden groove 318 to close or open the bottom of the quantitative accommodating hole 317. When the material distribution pneumatic rod drives the block 315 to move to the feeding station, the rotating bottom plate 316 is in a state of blocking the quantitative accommodating hole 317. At this time, the lower surface of the rotating bottom plate 316 is flush with the bottom surface of the block 315. When the block 315 is accurately moved to the top of the flange end of the material distribution outlet, the rotating bottom plate 316 rotates under the synergistic effect of the powder gravity and the vibration amplification mechanism 2, so that the powder in the quantitative accommodating hole 317 falls into the downstream mechanism. When the block 315 returns to the feeding station, the rotating base plate 316 is screwed back into the hidden groove 318 to ensure that the quantitative receiving hole 317 is completely closed. This design ensures the output of a quantitative amount of powder by starting the pneumatic rod to push the material receiving block to move only after a certain amount of powder is loaded into the material receiving block.

[0059] For further examples, see Figure 8The weighing unit includes a sensor mounting plate 303 and a weighing bearing plate 308 located in the weighing accommodating cavity 314. The sensor mounting plate 303 is detachably arranged at the bottom of the distribution box 307, and a plurality of pressure sensors 302 for supporting the weighing bearing plate 308 are arranged on the sensor mounting plate 303. The weighing bearing plate 308 is made of a lightweight and high-strength alloy material. The top surface of the weighing bearing plate 308 is flush with the bottom wall of the distribution moving cavity 311 to form a coplanar fit, and the surface roughness is controlled below Ra0.8 to ensure that the distribution accommodating block does not get stuck during the reciprocating movement.

[0060] In this embodiment, reference Figure 9 and Figure 2 The vibration amplification mechanism 2 includes a vibration motor 204 installed on the bulk material mechanism 4 and a plurality of groups of elastic support units evenly distributed between the bulk material mechanism 4 and the base receiving box 1. Each group of the elastic support units includes a vibration guide cylinder 201 vertically arranged on the base receiving box 1, a vibration support rod 202 and a strong spring 203 placed in the vibration guide cylinder 201. The top of the vibration support rod 202 is connected to the lower part of the bulk material mechanism 4, and the bottom end extends into the inner hole of the vibration guide cylinder 201. The two ends of the strong spring 203 respectively abut the bottom end of the vibration support rod 202 and the inner bottom wall of the vibration guide cylinder 201. The pre-compression amount of the strong spring 203 is 10%-15% of the free length of the spring.

[0061] In a further embodiment, in order to ensure the stability of the bulk material mechanism 4 and the dynamic material receiving mechanism 5 during vibration, the large guide column 205 provided at the lower part of the bulk material mechanism 4 is docked with the inner hole of the guide cylinder seat 206 provided at the top of the base receiving box 1, and the vibration motor 204 is installed at the end of the large guide column 205 to form a direct conduction path for the vibration energy, thereby avoiding affecting the gas protection packaging mechanism.

[0062] In this embodiment, reference Figure 4 and Figure 5The gas protection packaging mechanism 7 includes a main fixed box 708, an inner carrying cylinder 703 and an outer carrying cylinder 702. The inner carrying cylinder 703 and the outer carrying cylinder 702 are both arranged at the bottom of the main fixed box 708. The inner carrying cylinder 703 is coaxially arranged inside the outer carrying cylinder 702. This layout design ensures structural stability and space utilization during the packaging process. The lower part of the main fixed box 708 is provided with an extension cylinder 711 extending vertically and communicating with the internal cavity. The extension cylinder 711 is located inside the inner carrying cylinder 703. The extension cylinder 711 serves as a motion guide for the expansion column 705. The column lifting unit 709 in the main fixing box 708 is connected to the expansion column 705 to accurately control the expansion column 705 to move up and down along the axis of the extension cylinder 711, thereby realizing flexible adjustment of the internal space of the packaging bag. The expansion column 705 vertically passes through the extension cylinder 711. The inner supporting cylinder 703 is provided with a packaging bag clamping unit 704 that cooperates with the extension cylinder 711 to clamp and fix the packaging bag. The packaging bag clamping unit 704 can The bag opening of the packaging bag is quickly and stably clamped with the extension cylinder 711 to prevent the packaging bag from being displaced or loosened during the packaging process, ensuring the accuracy and reliability of the packaging operation. The outer supporting cylinder 702 is provided with a heat sealing unit 712 for heat sealing the packaging bag. The heat sealing unit 712 integrates a temperature sensor, a pressure regulating device and a heating element. It can accurately control the heat sealing temperature and pressure parameters according to the characteristics of packaging bags of different materials, so as to achieve efficient and firm heat sealing of the bag opening, ensuring the sealing and integrity of the packaging. A packaging lifting unit 714 is provided below 708. A positioning and mounting cylinder 701 is installed on the packaging lifting unit 714 and directly below the extension cylinder 711, thereby driving the positioning and mounting cylinder 701 to engage with the extension cylinder 711, so as to achieve the installation of the packaging bag on the extension cylinder 711. The upper end of the expansion column 705 is connected to the flexible connection mechanism 6, wherein the flexible connection mechanism 6 has two functions: first, to prevent the vibration of the vibration amplification mechanism 2 from being transmitted to the gas protection packaging mechanism 7; second, to facilitate the upward and downward movement of the expansion column 705;

[0063] A transition chamber 706 and a plurality of air inlet and outlet channels 710 are provided in the expansion column 705. The transition chamber 706 is connected to the expansion column 705 through the air inlet and outlet channels 710 and is provided with a discharge channel 707 which is axially extended through the center of the expansion column 705. A quick-change connector connected to the transition chamber 706 is installed on the expansion column 705 and is connected to the air supply system through the quick-change connector. After the expansion column 705 is inserted into the packaging bag, air is evacuated and nitrogen is filled. When air is evacuated, a vacuum is formed in the packaging bag and the bag is adsorbed and attached to the expansion column 705. When nitrogen is filled, the packaging bag bulges to replace the air in the packaging bag. Single-walled carbon nanotube powder can also be injected into the packaging bag through the discharge channel 707. In a further embodiment, in order to better adsorb the packaging, the discharge channel 707 can also be connected to the outside to adsorb the packaging bag at multiple points.

[0064] In a further embodiment, the clamping mechanism includes a clamping cylinder 7041 symmetrically arranged on the side of the inner supporting cylinder 703, and the output ends of the clamping cylinder 7041 are respectively connected to the corresponding clamping plates 7042. When working, the clamping plates 7042 are driven to move toward or away from each other through the telescopic movement of the output ends of the clamping cylinder 7041. The clamping plates 7042 and the extension cylinder 711 form a stable clamping surface, thereby realizing precise clamping and reliable fixation of the packaging bag.

[0065] In a further embodiment, the heat sealing unit 712 includes a heat sealing cylinder 7122 and a heat sealing part 7121 symmetrically arranged on the outer supporting cylinder 702. The output ends of the heat sealing cylinder 7122 are respectively connected to the corresponding heat sealing parts 7121. The heat sealing cylinder 7122 drives the heat sealing parts 7121 to move synchronously relative to or in the same direction, so that the heat sealing parts 7121 act on the surface of the packaging bag filled with single-walled carbon nanotube powder at a preset temperature and pressure, thereby realizing efficient heat sealing operation of the bag opening.

[0066] In a further embodiment, to create a protective system that isolates the outside air and prevents moisture and dust from entering the packaging bag, a nitrogen barrier is established between the extension tube 711 and the inner carrier tube 703 to achieve sealed protection. The main fixed box 708 integrates an air barrier unit 713 to form an air barrier between the extension tube 711 and the inner carrier tube 703. The air barrier unit 713 includes an air barrier box 7132 disposed within the main fixed box 708 and multiple air nozzles 7131 disposed on the air barrier box 7132. Each air nozzle 7131 penetrates the main fixed box 708 and extends precisely into the interior of the inner carrier tube 703, thereby forming a directional airflow channel. The air barrier box 7132 is equipped with a dedicated connector for quick connection to an external air supply system. During operation, the high-purity nitrogen output by the gas supply system is introduced into the air barrier box 7132 through the connector, and then distributed to each air nozzle 7131 by the diversion structure inside the box, and ejected at a stable flow rate, so that a continuous and dense nitrogen curtain is formed in the gap between the inner supporting cylinder 703 and the extension cylinder 711, effectively blocking environmental pollutants and ensuring a clean packaging environment inside the packaging bag.

[0067] Working Principle: During the dynamic powder collection phase, SWCNT powder is pneumatically conveyed from the feed flange 506 into the tank 508 and spirals down the spiral guide plate 502. During this process, the vibration amplification mechanism 2 uses high-frequency vibration to evenly disperse the powder and prevent agglomeration. Simultaneously, the negative pressure cylinder 503 absorbs floating powder through the dust collection pores 507, which is then captured by the filter cylinder 505 and delivered to the central discharge port 402.

[0068] During the powder dispersion and quantitative distribution phase, the outlet hole 501 at the end of the spiral guide plate 502 evenly directs the powder into the discharge outlet 403 of the bulk bin 407. Simultaneously, the central discharge outlet 402 opens to release the powder trapped by the filter cartridge 505. The arc-shaped recessed area 409 at the bottom of the bulk bin 407, under vibration, guides the powder to converge at the guide outlet flange end 408, where it ultimately falls into the quantitative distribution mechanism 3. This mechanism, through the alternating movement of the dual-station distribution blocks A310 and B306, combined with real-time weighing by the pressure sensor 302, achieves precise quantitative output of the powder.

[0069] During the air protection packaging stage, the packaging bag is vacuum-adsorbed, positioned, and pre-inflated: the packaging bag is placed on the positioning and mounting cylinder 701. The packaging lifting unit 714 drives the positioning and mounting cylinder 701 upward to fit the extension cylinder 711. The expansion column 705 is inserted into the packaging bag and is forced to fit the extension cylinder 711 through negative pressure adsorption. At the same time, the bag opening is clamped by the clamping cylinder 7041, and the bag opening is fixed to the extension cylinder 711.

[0070] The packaging bag is then filled with high-purity nitrogen using the transition chamber 706 and the inlet and outlet channels 710 of the expansion column 705, causing the bag to swell with nitrogen. A nitrogen curtain is then formed between the extension tube 711 and the inner support tube 703 via the air barrier unit 713, isolating the bag from external contamination.

[0071] Powder filling and heat sealing: The powder from the quantitative dispensing mechanism 3 falls into the packaging bag through the discharge channel 707. Nitrogen filling stops when the powder is filling. After filling is completed, nitrogen filling is continued slowly to maintain a slight positive pressure in the bag to prevent the powder from being blown up. The heat sealing unit 712 drives the heat sealing part 7121 through the heat sealing cylinder 7122 to complete the bag opening sealing and discharge excess air at the same time, ultimately forming a low-oxygen (oxygen content ≤ 0.1%) sealed package.

[0072] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A single-walled carbon nanotube dynamic material collecting device with integrated gas protection packaging function, characterized in that: It comprises a base containing box (1) with an integrated gas protection packaging mechanism (7) for achieving vacuum adsorption and initial nitrogen filling in the pre-filling stage of single-walled carbon nanotube powder packaging, air curtain isolation during the filling process, and air curtain protection during heat-sealing packaging; A dynamic material receiving mechanism (5) is connected at its bottom to a dispersing mechanism (4) for dispersing and outputting the received single-walled carbon nanotube powder through the dispersing mechanism (4); a quantitative distributing mechanism (3) for quantitatively weighing and dispersing the powder is provided at the bottom of the dispersing mechanism (4); the quantitative distributing mechanism (3) is connected to an air protection packaging mechanism (7) via a flexible connecting mechanism (6); a vibration amplifying mechanism (2) disposed between the bulking mechanism (4) and the base containing box (1) and promoting uniform dispersion and accelerated conveying of powder during conveying by the dynamic material collecting mechanism (5), the bulking mechanism (4) and the quantitative material distributing mechanism (3) through high-frequency vibration; The dynamic material collecting mechanism (5) includes a tank body (508), a negative pressure connecting portion (504) located at the top of the tank body (508), and a feed flange end (506) located on the side of the tank body (508); the bottom of the tank body (508) is an open structure; a negative pressure cylinder (503) is vertically arranged inside the tank body (508); a spiral guide plate (502) is wound around the negative pressure cylinder (503) in the tank body (508); the last spiral surface of the spiral guide plate (502) is densely provided with outlet holes (501); a filter cylinder (505) is provided at the top of the negative pressure cylinder (503); the negative pressure connecting portion (504) is connected to the inner cavity of the filter cylinder (505); and dust collecting pores (507) for adsorbing carbon nanotube powder floating in the air are evenly opened on the inner wall of the negative pressure cylinder (503); The bulking mechanism (4) includes a bulking box (407), the top of the bulking box (407) is provided with a plurality of drop outlets (403) for receiving powder dropped from the spiral guide plate (502) and a central drop outlet (402) for receiving powder dropped from the filter cartridge (505), and the bottom is provided with a plurality of guide outlet flange ends (408) for guiding out the powder, the guide outlet flange ends (408) are connected to the quantitative distributing mechanism (3), and the bulking box ( Two opening and closing cylinders (401) are arranged opposite to each other on the top of the bulk material box (407). The output ends of the opening and closing cylinders (401) are downwardly passed into the bulk material box (407) and connected to the lifting plate (405). The blanking sealing portion (404) and the central sealing portion (406) integrated on the lifting plate (405) respectively block the blanking outlet (403) and the central blanking outlet (402). The height of the central sealing portion (406) is higher than that of the blanking sealing portion (404).

2. The single-walled carbon nanotube dynamic receiving device with integrated gas protection packaging function as claimed in claim 1, characterized in that: The bottom of the bulk material box (407) is recessed downwards at a position corresponding to the guide outlet flange end (408) to form an arc-shaped recessed area (409), and the guide outlet flange end (408) is arranged at the geometric lowest point of the arc-shaped recessed area (409).

3. The single-walled carbon nanotube dynamic receiving device with integrated gas protection packaging function as claimed in claim 1, characterized in that: The quantitative material dispensing mechanism (3) comprises a material dispensing box (307), a material dispensing moving chamber (311) is provided inside the material dispensing box (307), and a material dispensing inlet flange end (309) communicating with the material dispensing moving chamber (311) is provided on the top of the material dispensing box (307), and a material dispensing outlet flange end A (313) and a material dispensing outlet flange end B (304) are provided on the bottom, the material dispensing outlet flange end A (313) and the material dispensing outlet flange end B (304) are both communicated with the material dispensing moving chamber (311), and a material dispensing receiving block A (310) and a material dispensing receiving block B (306) of identical structure are provided in the material dispensing moving chamber (311), and a material dispensing pneumatic rod A (312) and a material dispensing pneumatic rod B (306) are symmetrically provided on both sides of the material dispensing box (307). The movable rod B (305) and the output ends of the pneumatic rod A (312) and the pneumatic rod B (305) are respectively inserted into the material distribution moving chamber (311) to push the material distribution accommodating block A (310) and the material distribution accommodating block B (306) to move synchronously in the material distribution moving chamber (311). A weighing accommodating chamber (314) in communication with the material distribution moving chamber (311) is provided at the bottom of the material distribution box (307) and directly below the material distribution inlet flange end (309). A weighing unit for real-time weighing of the material distribution accommodating block is provided in the weighing accommodating chamber (314). The material distribution outlet flange end A (313) and the material distribution outlet flange end B (304) are simultaneously connected to the collecting pipe (301).

4. The single-walled carbon nanotube dynamic receiving device with integrated gas protection packaging function as claimed in claim 3, characterized in that: The material distribution accommodating block A (310) comprises a block (315), and a quantitative accommodating hole (317) is vertically penetrated through the center of the block (315), a hidden groove (318) is provided on the bottom surface of the block (315) with the central axis of the quantitative accommodating hole (317) as a reference, and a rotating bottom plate (316) is rotatably provided in the hidden groove (318) to close or open the bottom of the quantitative accommodating hole (317).

5. The single-walled carbon nanotube dynamic receiving device with integrated gas protection packaging function as claimed in claim 3, characterized in that: The weighing unit comprises a sensor mounting plate (303) and a weighing bearing plate (308) located in a weighing accommodating cavity (314); the sensor mounting plate (303) is detachably arranged at the bottom of the material distribution box (307); and a plurality of pressure sensors (302) for supporting the weighing bearing plate (308) are arranged on the sensor mounting plate (303); the top surface of the weighing bearing plate (308) is flush with the bottom wall of the material distribution moving cavity (311).

6. The single-walled carbon nanotube dynamic collecting device with integrated gas protection packaging function as claimed in claim 1, characterized in that: The vibration amplification mechanism (2) comprises a vibration motor (204) mounted on the material dispersing mechanism (4) and a plurality of groups of elastic support units uniformly distributed between the material dispersing mechanism (4) and the base accommodating box (1), each group of the elastic support units comprising a vibration guide cylinder (201) vertically arranged on the base accommodating box (1), a vibration support rod (202), and a strong spring (203) disposed in the vibration guide cylinder (201), the top end of the vibration support rod (202) being connected to the lower part of the material dispersing mechanism (4), and the bottom end extending into the inner hole of the vibration guide cylinder (201), and the two ends of the strong spring (203) respectively abutting against the bottom end of the vibration support rod (202) and the inner bottom wall of the vibration guide cylinder (201).

7. The single-walled carbon nanotube dynamic collecting device with integrated gas protection packaging function as claimed in claim 6, characterized in that: A large guide column (205) provided at the bottom of the bulking mechanism (4) is docked with an inner hole of a guide cylinder seat (206) provided at the top of the base accommodating box (1), and the vibration motor (204) is mounted on the end of the large guide column (205).

8. The single-walled carbon nanotube dynamic collecting device with integrated gas protection packaging function as claimed in claim 1, characterized in that: The gas protection packaging mechanism (7) includes a main fixed box (708), an inner bearing cylinder (703) and an outer bearing cylinder (702), the inner bearing cylinder (703) and the outer bearing cylinder (702) are both arranged at the bottom of the main fixed box (708), the inner bearing cylinder (703) is coaxially arranged inside the outer bearing cylinder (702), the lower part of the main fixed box (708) is provided with an extension cylinder (711) extending vertically and communicating with the internal cavity, the extension cylinder (711) is located inside the inner bearing cylinder (703), the column lifting unit (709) carried in the main fixed box (708) is connected to the expansion column (705), and is used to accurately control the expansion column (705). 05) moves up and down along the axis of the extension tube (711), the expansion column (705) vertically penetrates the extension tube (711), the inner supporting tube (703) is provided with a packaging bag clamping unit (704) for cooperating with the extension tube (711) to clamp and fix the packaging bag, the outer supporting tube (702) is provided with a heat sealing unit (712) for heat sealing the packaging bag, a packaging lifting unit (714) is provided below the main fixing box (708), and a positioning installation tube (701) is installed on the packaging lifting unit (714) and directly below the extension tube (711), thereby driving the positioning installation tube (701) to be sleeved with the extension tube (711); A transition cavity (706) and a plurality of air inlet and outlet channels (710) are provided in the expansion column (705); a discharge channel (707) is provided axially through the center of the expansion column (705); the transition cavity (706) is connected to the discharge channel (707) via the air inlet and outlet channels (710); and a quick-change connector communicating with the transition cavity (706) is installed on the expansion column (705); An air barrier unit (713) is integrated in the main fixing box (708) to form an air barrier between the extension tube (711) and the inner bearing tube (703).

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