A device for capturing and collecting gas-phase dispersed carbon nanotubes

Abstract

A device for capturing and collecting gas-phase dispersed carbon nanotubes is disclosed, relating to the field of nanomaterial collection technology. The device includes an overhead crane, a carbon nanotube dispersion device, an air pump, a capturing and scraping device, and a collection device. This invention enables large-scale collection of carbon nanotube dispersions with ideal collection results, simple operation, and low process cost, making it highly suitable for continuous collection of carbon nanotube dispersions.

Description

Technical Field

[0001] This invention relates to the field of nanomaterial collection technology, specifically to a device for capturing and collecting gas-phase dispersed carbon nanotubes. Background Technology

[0002] Carbon nanotubes are tubular nanomaterials with diameters on the nanometer scale, formed by rolling graphite sheets at a specific helical angle. Due to their excellent overall properties, they are often used as reinforcing fillers added to composite materials. However, due to their high aspect ratio and strong van der Waals forces, carbon nanotubes are prone to agglomeration during production and use, thus reducing their performance. Therefore, it is often necessary to fully disperse the agglomerates of carbon nanotubes during use. Current dispersion methods have drawbacks such as incomplete dispersion, long working time, some damage to nanomaterials, and low dispersion efficiency. Patent No. ZL 201410446507.X reports a carbon nanotube dispersion method in which carbon nanotubes can be directly dispersed in the gas phase. However, the dispersed carbon nanotubes often exhibit a certain degree of disorder, making them difficult to capture and collect, thus hindering the further utilization of the carbon nanotube dispersion. Summary of the Invention

[0003] This invention provides a device for capturing and collecting gas-phase dispersed carbon nanotubes. This device can capture and collect carbon nanotubes continuously, efficiently, without pollution, and in an easy-to-operate manner. Through the capture, scraping, and collection of carbon nanotubes, it greatly facilitates the next application of carbon nanotube dispersions.

[0004] To achieve the above objectives, the technical solution of the present invention is as follows:

[0005] A device for capturing and collecting gas-phase dispersed carbon nanotubes includes an overhead crane, a carbon nanotube dispersion device, an air pump, a capture and scraping device, and a collection device. The overhead crane is connected to the capture and scraping device via a crane arm and is positioned at a first station by a positioning mechanism. The carbon nanotube dispersion device is located at one end of the first station, and the air pump is located on the side of the carbon nanotube dispersion device away from the capture and scraping device. The air pump blows the dispersed carbon nanotube phase dispersed by the carbon nanotube dispersion device into the capture and scraping device at the first station by airflow. After the capture and scraping device at the first station collects the dispersed carbon nanotube phase for a certain period of time, the overhead crane moves the capture and scraping device to a second station via the crane arm. The second station is connected to the collection device, and the collection device and the capture and scraping device at the second station cooperate to collect the carbon nanotubes.

[0006] Preferably, the carbon nanotube dispersion device is provided with a carbon nanotube dispersed phase output end, and the output end is provided with a valve. After the valve is opened, the air pump blows the carbon nanotube dispersed phase into the capture and scraping device at the first station through airflow. The air pump is equipped with an electronic air pump control valve, and the bottom of the air pump is provided with an air pump bracket.

[0007] Preferably, the positioning mechanism is located on the side of the carbon nanotube dispersion device away from the air pump. The positioning mechanism includes an electromagnetic gripper device and an electromagnetic gripper support. The electromagnetic gripper device is fixedly located at the top of the electromagnetic gripper support. The overhead crane arm suspends the capturing and scraping device to the first work position. At the first work position, the capturing and scraping device is gripped and positioned by the electromagnetic gripper device.

[0008] Preferably, the electromagnetic gripper device includes: a square bushing, an L-shaped slot connecting plate, grippers, an I-shaped slot connecting plate, a gripper connecting frame, a push-pull electromagnet, and a connecting rod. The left and right ends of the push-pull electromagnet are covered and fixed by the gripper connecting frame, and the telescopic end of the push-pull electromagnet is coaxially and fixedly connected to the square bushing. A fixing block with a right-angled triangular cross-section is fixedly connected to the front end of the gripper connecting frame on the left and right sides of the square bushing. One right-angled side of the fixing block is parallel to the axis of the telescopic end, and the other right-angled side is perpendicular to the axis of the telescopic end. The L-shaped slot connecting plates are distributed at the four corners of the square bushing. The corners of the L-shaped slot connecting plates are rotatably connected to the right-angled outer or inner surface of the fixing block. The short side of the L-shaped slot connecting plate is connected to the outer or inner surface of the square bushing. The end is rotatably connected. There are four I-shaped slot connecting plates, which are arranged parallel to the long side of the L-shaped slot connecting plate. One end of the I-shaped slot connecting plate is hinged to the outer or inner surface of the end of the fixing block away from the square bushing. The long side end of the L-shaped slot connecting plate and the other end of the I-shaped slot connecting plate on the same side are connected to a mounting plate. The two ends of the mounting plate are respectively hinged to the long side end of the L-shaped slot connecting plate and the end of the I-shaped slot connecting plate. The upper ends of the mounting plates on the left and right sides are fixedly connected to grippers. Under the drive of the push-pull electromagnet, the grippers open and close to realize the action of gripping and releasing. The bottom ends of the left and right gripper connecting frames are fixedly connected to the top end of the connecting rod. The bottom end of the connecting rod is fixedly connected to the top end of the electromagnetic gripper bracket. Two electromagnetic gripper devices are arranged side by side.

[0009] Preferably, the capturing and scraping device includes: a first cylinder, a connecting flange, a capturing and scraping cylinder, and a scraping rubber disc. One end of the capturing and scraping cylinder is closed, and the other end is open. The cylinder end of the first cylinder is connected to the closed end of the capturing and scraping cylinder through the connecting flange. The piston rod of the first cylinder slides through the closed end and is connected to one end of the scraping rubber disc located inside the capturing and scraping cylinder. The outer edge of the scraping rubber disc is tightly fitted and slidably connected to the inner surface of the capturing and scraping cylinder. The lower end of the overhead crane arm is connected to both ends of the capturing and scraping cylinder through a hoisting rope assembly.

[0010] Preferably, the collection device includes: a carbon nanotube collection box, a collection box interface, a rotating scraper, a rotating scraper driver, and a second cylinder. The second cylinder is horizontally arranged, and the cylinder end of the second cylinder is fixedly connected to the inner wall of the end of the carbon nanotube collection box away from the collection box interface. The telescopic end of the second cylinder is fixedly connected to the rotating scraper driver. The rotating scraper driver is connected to the rotating scraper. The rotating scraper is opposite to the inner end of the collection box interface. The collection box interface is L-shaped. Under the lifting of the overhead crane robotic arm, the open end of the capturing and scraping cylinder of the capturing and scraping device overlaps with the collection box interface and fits tightly with the collection box interface, thus entering the second working position.

[0011] Preferably, the bottom of the collecting device is also provided with a collecting device support.

[0012] A method for using a device for capturing and collecting gas-phase dispersed carbon nanotubes includes the following steps:

[0013] (1) Start the overhead crane robotic arm, and the capture and scraping device will reach the first work position under the drive of the overhead crane robotic arm and be clamped and fixed by the electromagnetic gripper device at the first work position;

[0014] (2) Start the air pump and carbon nanotube dispersion device. The carbon nanotube dispersion enters the capture and scraping cylinder of the capture and scraping device under the airflow generated by the air pump, so that part of the carbon nanotube dispersion is attached to the surface of the scraping rubber disc and the other part is attached to the wall of the capture and scraping cylinder. After the capture and scraping cylinder has collected for a predetermined time, the electronic air pump control valve is closed, so that the carbon nanotube dispersion device also stops working and the electromagnetic gripper device is opened.

[0015] (3) The capture and scraping device moves to the second station under the gripping of the overhead crane robotic arm. The carbon nanotube dispersion is continuously scraped off the carbon nanotube dispersion on the inner wall of the scraping cylinder by the scraping rubber disc driven by the first cylinder in the capture and scraping device, and the scraping rubber disc is moved to a suitable position in the collection device. The second cylinder is adjusted so that the rotating scraping disc fits against the outer surface of the scraping rubber disc, and the scraping speed of the rotating scraping disc is adjusted by adjusting the rotation speed of the rotating scraping disc driver. After the carbon nanotube dispersion on the surface of the scraping rubber disc is scraped off, the first cylinder is depressurized and returns to the first station under the drive of the overhead crane robotic arm, that is, steps (1) to (3) are repeated. By continuously repeating the above operations, the capture and collection of carbon nanotube dispersion is achieved.

[0016] The present invention provides a device for capturing and collecting gas-phase dispersed carbon nanotubes, which has the following beneficial effects:

[0017] This invention enables large-scale collection of carbon nanotube dispersions with ideal collection results, simple operation, and low process cost, making it very suitable for continuous collection of carbon nanotube dispersions. Attached Figure Description

[0018] Figure 1 Isometric drawing of the present invention;

[0019] Figure 2 A cross-sectional view of the collection device of the present invention;

[0020] Figure 3 A cross-sectional view of the capturing and scraping device of the present invention;

[0021] Figure 4 A partial cross-sectional view of the electromagnetic gripper device of the present invention;

[0022] Figure 5 A top view of the electromagnetic gripper device of the present invention (gripper connecting frame omitted);

[0023] 1. Overhead crane; 2. Electronic air pump control valve; 3. Air pump; 4. Collection device; 401. Collection box interface; 402. Rotary scraper; 403. Rotary scraper driver; 404. Second cylinder; 5. Collection device bracket; 6. Capturing and scraping device at the second workstation; 601. First cylinder; 602. Connecting flange; 603. Capturing and scraping cylinder; 604. Scraping rubber disc; 7. Air pump bracket; 8. Carbon nanotube dispersion generator; 9. Electromagnetic gripper device; 901. Square bushing; 902. L-shaped slot connecting plate; 903. Gripper; 904. I-shaped slot connecting plate; 905. Gripper connecting frame; 906. Push-pull electromagnet; 907. Fixing block; 908. Mounting plate; 10. Electromagnetic gripper bracket; 11. Capturing and scraping device at the first workstation; 12. Overhead crane robotic arm. Detailed Implementation

[0024] The following description provides a detailed explanation of the embodiments of the present invention in a step-by-step manner. This description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

[0025] In the description of this invention, it should be noted that the terms "upper," "lower," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limiting this invention.

[0026] Example 1

[0027] A device for capturing and collecting gas-dispersed carbon nanotubes, such as... Figure 1-5 As shown, the system includes a gantry crane 1, a carbon nanotube dispersion device 8, an air pump 3, a capture and scraping device, and a collection device. The gantry crane is connected to the capture and scraping device via a gantry crane robotic arm 12, and the capture and scraping device is positioned at a first station by a positioning mechanism. The carbon nanotube dispersion device 8 is located at one end of the first station, and the air pump 3 is located on the side of the carbon nanotube dispersion device 8 away from the capture and scraping device. The air pump 3 blows the carbon nanotube dispersed phase dispersed by the carbon nanotube dispersion device 8 into the capture and scraping device 11 at the first station by airflow. After the capture and scraping device at the first station collects carbon nanotubes for a certain period of time, the gantry crane 1 moves the capture and scraping device to a second station via the gantry crane robotic arm 12. The second station is connected to the collection device, and the collection device and the capture and scraping device 6 at the second station cooperate to collect the carbon nanotube dispersed phase.

[0028] like Figure 1-5 As shown, the carbon nanotube dispersion device 8 is provided with a carbon nanotube dispersed phase output end. The output end is provided with a valve. After the valve is opened, the air pump 3 blows the carbon nanotube dispersed phase into the capture and scraping device at the first station through airflow. The air pump is equipped with an electronic air pump control valve 2, and the bottom of the air pump is provided with an air pump bracket 7.

[0029] like Figure 1-5 As shown, the positioning mechanism is located on the side of the carbon nanotube dispersion device 8 away from the air pump 3. The positioning mechanism includes an electromagnetic gripper device 9 and an electromagnetic gripper support 10. The electromagnetic gripper device 9 is fixedly mounted on the top of the electromagnetic gripper support 10. The overhead crane robotic arm 12 suspends the capture and scraping device to the first work position. At the first work position, the capture and scraping device is gripped and positioned by the electromagnetic gripper device 9.

[0030] like Figure 1-5 As shown, the electromagnetic gripper device 9 includes: a square bushing 901, an L-shaped slot connecting plate 902, grippers 903, an I-shaped slot connecting plate 904, a gripper connecting frame 905, a push-pull electromagnet 906, and a connecting rod. The left and right ends of the push-pull electromagnet 906 are covered and fixed by the gripper connecting frame 905, and the telescopic end of the push-pull electromagnet 906 is coaxially and fixedly connected to the square bushing 901. A fixing block 907 with a right-angled triangular cross-section is fixedly connected to the front end of the gripper connecting frame 905 on the left and right sides of the square bushing 901. One right-angled side of the fixing block is parallel to the axis of the telescopic end, and the other right-angled side is perpendicular to the axis of the telescopic end. The L-shaped slot connecting plates 902 are distributed at the four corners of the square bushing. The corners of the L-shaped slot connecting plates 902 are rotatably connected to the right-angled outer or inner surface of the fixing block. The short side of the L-shaped slot connecting plate 902 is connected to the outer surface of the square bushing. The inner or outer surface of the part is rotatably connected. There are four I-shaped slot connecting plates 904, which are respectively arranged parallel to the long side of the L-shaped slot connecting plate 902. One end of the I-shaped slot connecting plate 904 is hinged to the outer or inner surface of the fixed block away from the square bushing. The long side end of the L-shaped slot connecting plate 902 and the other end of the I-shaped slot connecting plate 904 on the same side are connected to the mounting plate 908. The two ends of the mounting plate are respectively hinged to the long side end of the L-shaped slot connecting plate 902 and the end of the I-shaped slot connecting plate 904. The upper ends of the mounting plates 908 on the left and right sides are respectively fixedly connected to the grippers 903. Under the drive of the push-pull electromagnet 906, the grippers open and close to realize the action of gripping and releasing. The bottom ends of the left and right gripper connecting frames 905 are fixedly connected to the top end of the connecting rod. The bottom end of the connecting rod is fixedly connected to the top end of the electromagnetic gripper bracket 10. Two electromagnetic gripper devices 9 are arranged side by side.

[0031] like Figure 1-5 As shown, the capturing and scraping device includes: a first cylinder 601, a connecting flange 602, a capturing and scraping cylinder 603, and a scraping rubber disc 604. The capturing and scraping cylinder 603 is closed at one end and open at the other end. The cylinder end of the first cylinder 601 is connected to the closed end of the capturing and scraping cylinder 603 through the connecting flange 602. The piston rod of the first cylinder slides through the closed end and is connected to one end of the scraping rubber disc 604 located inside the capturing and scraping cylinder 603. The outer edge of the scraping rubber disc 604 is tightly fitted and slidably connected to the inner surface of the capturing and scraping cylinder 603. The lower end of the overhead crane arm is connected to both ends of the capturing and scraping cylinder through a hoisting rope assembly.

[0032] like Figure 1-5As shown, the collection device 4 includes: a carbon nanotube collection box, a collection box interface 401, a rotating scraper 402, a rotating scraper driver 403, and a second cylinder 404. The second cylinder 404 is horizontally arranged, and the cylinder end of the second cylinder is fixedly connected to the inner wall of the end of the carbon nanotube collection box away from the collection box interface. The telescopic end of the second cylinder is fixedly connected to the rotating scraper driver 403. The rotating scraper driver 403 is connected to the rotating scraper 402. The rotating scraper 402 is opposite to the inner end of the collection box interface. The collection box interface is L-shaped. Under the lifting of the overhead crane robotic arm, the open end of the capturing and scraping cylinder 603 of the capturing and scraping device overlaps with the collection box interface and fits tightly with the collection box interface, that is, it enters the second working position.

[0033] like Figure 1 As shown, the bottom end of the collection device 4 is also provided with a collection device support 5.

[0034] Example 2

[0035] Based on Example 1, this embodiment discloses a method for using a device for capturing and collecting gas-phase dispersed carbon nanotubes, such as... Figure 1-5 As shown, it includes the following steps:

[0036] (1) Start the overhead crane robotic arm 12, and the capture and scraping device 6 reaches the first work position under the drive of the overhead crane robotic arm 12, and is clamped and fixed by the electromagnetic gripper device 9 at the first work position;

[0037] (2) Start the air pump 3 and the carbon nanotube dispersion device 8. The carbon nanotube dispersion enters the capture and scraping cylinder of the capture and scraping device under the airflow generated by the air pump 3, so that part of the carbon nanotube dispersion is attached to the surface of the scraping rubber disc 604 and the other part is attached to the wall of the capture and scraping cylinder 603. After the capture and scraping cylinder 603 collects for a predetermined time, the electronic air pump control valve 2 is closed, the carbon nanotube dispersion device 8 also stops working, and the electromagnetic gripper device 9 is opened.

[0038] (3) The capture and scraping device moves to the second station under the gripping of the overhead crane robotic arm 12. The carbon nanotube dispersion is continuously scraped off the carbon nanotube dispersion on the inner wall of the scraping cylinder 603 by the scraping rubber disc 604 driven by the first cylinder 601 in the capture and scraping device, and the scraping rubber disc 604 is moved to a suitable position in the collection device 4. The second cylinder 404 is adjusted so that the rotating scraper 402 fits against the outer surface of the scraping rubber disc 604, and the scraping speed of the rotating scraper 402 is adjusted by adjusting the rotation speed of the rotating scraper driver 403. After the carbon nanotube dispersion on the surface of the scraping rubber disc 604 is scraped off, the first cylinder 601 is depressurized and returns to the first station under the drive of the overhead crane robotic arm 12, that is, steps (1) to (3) are repeated. By continuously repeating the above operations, the capture and collection of carbon nanotube dispersion is realized.

Claims

1. A device for capturing and collecting gas-phase dispersed carbon nanotubes, characterized in that: The system includes an overhead crane, a carbon nanotube dispersion device, an air pump, a capture and scraping device, and a collection device. The overhead crane is connected to the capture and scraping device via its robotic arm and is positioned at a first station by a positioning mechanism. The carbon nanotube dispersion device is located at one end of the first station, and an air pump is located on the side of the carbon nanotube dispersion device away from the capture and scraping device. The air pump blows the carbon nanotube dispersed phase dispersed by the carbon nanotube dispersion device into the capture and scraping device at the first station by airflow. After the capture and scraping device at the first station collects the carbon nanotube dispersed phase for a certain period of time, the overhead crane moves the capture and scraping device to a second station via its robotic arm. The second station is connected to the collection device, and the collection device and the capture and scraping device at the second station cooperate to collect the carbon nanotubes. The capture and scraping device includes: a first cylinder, a connecting flange, a capture and scraping cylinder, and a scraping rubber disc. The capture and scraping cylinder is closed at one end and open at the other end. The cylinder end of the first cylinder is connected to the closed end of the capture and scraping cylinder through the connecting flange. The piston rod of the first cylinder slides through the closed end and is connected to one end of the scraping rubber disc located inside the capture and scraping cylinder. The outer edge of the scraping rubber disc is tightly fitted and slidably connected to the inner surface of the capture and scraping cylinder. The lower end of the overhead crane arm is connected to both ends of the capture and scraping cylinder through a hoisting rope assembly.

2. The device for capturing and collecting gas-phase dispersed carbon nanotubes as described in claim 1, characterized in that: The carbon nanotube dispersion device is provided with a carbon nanotube dispersed phase output end. The output end is equipped with a valve. When the valve is opened, the air pump blows the carbon nanotube dispersed phase into the capture and scraping device at the first station through airflow. The air pump is equipped with an electronic air pump control valve, and the bottom of the air pump is equipped with an air pump bracket.

3. The device for capturing and collecting gas-phase dispersed carbon nanotubes as described in claim 2, characterized in that: The positioning mechanism is located on the side of the carbon nanotube dispersion device away from the air pump. The positioning mechanism includes an electromagnetic gripper device and an electromagnetic gripper support. The electromagnetic gripper device is fixedly mounted on the top of the electromagnetic gripper support. The overhead crane arm suspends the capture and scraping device to the first work position. At the first work position, the capture and scraping device is gripped and positioned by the electromagnetic gripper device.

4. The device for capturing and collecting gas-phase dispersed carbon nanotubes as described in claim 3, characterized in that: The electromagnetic gripper device includes: a square bushing, an L-shaped slotted connecting plate, grippers, an I-shaped slotted connecting plate, a gripper connecting frame, a push-pull electromagnet, and a connecting rod. The left and right ends of the push-pull electromagnet are covered and fixed by the gripper connecting frame, and the telescopic end of the push-pull electromagnet is coaxially and fixedly connected to the square bushing. A fixing block with a right-angled triangular cross-section is fixedly connected to the front end of the gripper connecting frame on the left and right sides of the square bushing. One right-angled side of the fixing block is parallel to the axis of the telescopic end, and the other right-angled side is perpendicular to the axis of the telescopic end. The L-shaped slotted connecting plates are distributed at the four corners of the square bushing. The corners of the L-shaped slotted connecting plates are rotatably connected to the right-angled outer or inner surface of the fixing block. The short side of the L-shaped slotted connecting plate is connected to the outer or inner surface of the square bushing. The rotating connection includes four I-shaped slot connecting plates, each parallel to the long side of an L-shaped slot connecting plate. One end of each I-shaped slot connecting plate is hinged to the outer or inner surface of the end of the fixing block furthest from the square bushing. The long side of the L-shaped slot connecting plate and the other end of the I-shaped slot connecting plate on the same side are connected to a mounting plate. Both ends of the mounting plate are hinged to the long side of the L-shaped slot connecting plate and the end of the I-shaped slot connecting plate, respectively. Grippers are fixedly connected to the upper ends of the mounting plates on both sides. Driven by a push-pull electromagnet, the grippers open and close to perform gripping and releasing actions. The bottom ends of the left and right gripper connecting frames are fixedly connected to the top ends of a connecting rod. The bottom end of the connecting rod is fixedly connected to the top end of the electromagnetic gripper bracket. Two electromagnetic gripper devices are arranged side-by-side.

5. The device for capturing and collecting gas-phase dispersed carbon nanotubes as described in claim 4, characterized in that: The collection device includes: a carbon nanotube collection box, a collection box interface, a rotating scraper, a rotating scraper driver, and a second cylinder. The second cylinder is horizontally positioned, and its cylinder end is fixedly connected to the inner wall of the carbon nanotube collection box away from the collection box interface. The telescopic end of the second cylinder is fixedly connected to the rotating scraper driver. The rotating scraper driver is connected to the rotating scraper. The rotating scraper is opposite to the inner end of the collection box interface. The collection box interface is L-shaped. Under the lifting of the overhead crane's robotic arm, the open end of the capturing and scraping cylinder of the capturing and scraping device overlaps with the collection box interface and fits tightly with it, thus entering the second working position.

6. The device for capturing and collecting gas-phase dispersed carbon nanotubes as described in claim 5, characterized in that: The bottom of the collection device is also provided with a collection device support.

7. The method of using the device for capturing and collecting gas-phase dispersed carbon nanotubes as described in claim 6, characterized in that, Includes the following steps: (1) Start the overhead crane robotic arm, and the capture and scraping device reaches the first work position under the drive of the overhead crane robotic arm, and is clamped and fixed by the electromagnetic gripper device at the first work position; (2) Start the air pump and carbon nanotube dispersion device. The carbon nanotube dispersion enters the capture and scraping cylinder of the capture and scraping device under the airflow generated by the air pump, so that part of the carbon nanotube dispersion is attached to the surface of the scraping rubber disc and the other part is attached to the wall of the capture and scraping cylinder. After the capture scraping tube has collected enough material for the predetermined time, the electronic air pump control valve closes, causing the carbon nanotube dispersion device to stop working, and the electromagnetic gripper device opens. (3) The capture and scraping device moves to the second station under the gripping of the overhead crane robotic arm. The carbon nanotube dispersion is continuously scraped off the carbon nanotube dispersion on the inner wall of the scraping cylinder by the scraping rubber disc driven by the first cylinder in the capture and scraping device, and the scraping rubber disc is moved to the appropriate position in the collection device. The second cylinder is adjusted so that the rotating scraping disc fits against the outer surface of the scraping rubber disc, and the scraping speed of the rotating scraping disc is adjusted by adjusting the rotation speed of the rotating scraping disc driver. After the carbon nanotube dispersion on the surface of the scraping rubber disc is scraped off, the first cylinder is released and returns. The capture and scraping device returns to the first station under the drive of the overhead crane robotic arm, that is, steps (1) to (3) are repeated. By continuously repeating the above operations, the capture and collection of carbon nanotube dispersion is realized.

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