High-flux automatic weighing device for powder and use method of high-flux automatic weighing device

By designing a high-throughput automatic powder weighing device, the problem of inaccurate weighing in all-solid powder processes was solved, realizing fully automated, rapid and accurate powder weighing, reducing human error, improving experimental efficiency and accuracy, and preventing cross-contamination of dust.

CN120970780APending Publication Date: 2025-11-18UNIV OF SCI & TECH BEIJING
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Patent Information

Application Number
CN202410611463.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-05-16
Publication Date
2025-11-18

AI Technical Summary

Technical Problem

Existing automated experimental technologies mainly focus on liquid-phase chemical reactions, lacking high-throughput automated weighing devices for all-solid-state powder processes. This results in traditional manual weighing being time-consuming and labor-intensive, easily affected by the operator's skill level and the environment, and failing to meet the requirements of speed, accuracy, and consistency in high-throughput experiments.

Method used

A high-throughput automatic powder weighing device is provided, including a material storage area, a material receiving platform, a weighing platform, a capping device, and an artificial intelligence robot. Through spiral discharge, a precision weighing module, and a shockproof device, it achieves fully automated, fast, and accurate powder weighing, and is equipped with cleaning equipment to prevent cross-contamination of dust.

Benefits of technology

It achieves rapid, accurate, and fully automated weighing of powders, reduces human error, ensures accurate weighing of powders with different components and contents, records weighing data for easy traceability, avoids the influence of vibration of the weighing module, cleans the equipment to prevent cross-contamination, and improves experimental efficiency and accuracy.

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Abstract

The invention relates to a high-flux automatic weighing device for powder, which is controlled by a program setting robot to realize a high-flux automatic proportioning process of solid powder. The device comprises a material storage area containing containers such as test tubes, a material bearing table containing a plurality of hoppers and a movable sliding rail, a weighing table provided with a weighing module and a shockproof table and connected with an automatic feedback system, and an artificial intelligence robot. According to the device, the high-precision weighing module is matched with the automatic feedback system to control accurate discharging of the discharging port, rapid and accurate weighing of solid powder can be achieved, and the device can achieve automatic weighing of powder with different components and different contents according to different requirements. The whole process is accurately connected in series through the artificial intelligence robot, and the efficient, accurate and manual-free full-automatic weighing process is achieved.
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Description

Technical Field

[0001] This invention relates to the field of high-throughput powder preparation, and in particular to a high-throughput automatic weighing device for powders and its method of use. Background Technology

[0002] With the rapid development of electronic information, new energy, and military technologies, the traditional trial-and-error research paradigm is insufficient to meet the urgent needs of rapid technological advancements for new materials. Therefore, a new materials research and development model is urgently needed to accelerate the research and development process and reduce costs. The concept of materials genome engineering, introduced in 2011, has comprehensively accelerated the process from materials design to engineering application, significantly improving the efficiency of new materials research and development, reducing costs, and promoting engineering applications. High-throughput experiments are one of the three pillars of materials genome engineering, utilizing efficient, automated, and parallel methods for large-scale materials preparation and characterization, greatly improving experimental efficiency. Automated experimental techniques, in particular, use automated equipment and computer programs to complete the entire experimental process, improving efficiency and accuracy while reducing errors caused by human error. Existing automated experimental techniques mainly focus on liquid-phase chemical reactions; automated experimental techniques for all-solid-state powder processes are rarely reported. Summary of the Invention

[0003] Weighing is a crucial step in solid-state reaction preparation, directly affecting the reliability of experimental results. Traditional manual weighing is time-consuming and labor-intensive, easily affected by the operator's skill level and the operating environment, and is more suitable for small-scale experiments or situations that rely heavily on human skill and experience. High-throughput automated weighing is faster and more efficient than manual weighing, reducing the possibility of human error and maintaining high consistency across different time points and conditions. Its main goal is to achieve high precision and full automation, with the proportions and weights of each raw material typically weighed strictly according to the formula and specifications to ensure that the performance and quality of the final powder material meet the requirements. Therefore, there is a need to provide a high-throughput automated weighing device for powders and its usage method.

[0004] To address the limitations of high-throughput automated experimental technology in all-solid powder processing, this invention provides a high-throughput automatic weighing device for powders and its usage method. This device enables rapid, accurate, and fully automated weighing of powders, and can automatically weigh powders with different components and contents according to program settings.

[0005] This invention provides a high-throughput automatic weighing device for powders. The device includes a material storage area containing containers such as test tubes, a material receiving platform containing several hoppers and movable slide rails, a weighing module, a vibration-damping platform and a weighing platform connected to an automatic feedback system, and an artificial intelligence robot.

[0006] Preferably, the material storage area of ​​the device also includes a multi-channel inclined automatic discharge container rack, with a container trough equipped with a conveying device below the container rack, which can convey the containers to the discharge port for later use.

[0007] Preferably, the device has a capping device on one side of the container rack. The robot transfers the contents of the container slot to the capping device, where the robot clamps and fixes the container. The upper capping device clamps the container cap and rotates it around the central axis to unscrew the container cap, thus completing the capping process.

[0008] Preferably, the device's receiving platform includes several hoppers (the number of hoppers can be expanded; the size of the receiving platform and the number of hoppers can be increased according to actual needs, with each hopper capable of holding at least 50g of raw material powder), a motor-driven screw conveyor, an automatic feedback control system, and a movable slide rail with a transmission device. Through program settings, the slide rail moves the designated powder inlet to directly above the target container to weigh the powder. The device uses a screw-type discharge method, employing a screw conveyor to transport and control the flow of the medicine. The screw conveyor is controlled by a motor to rotate the screw in a pressing manner, conveying the medicine along the screw structure to the discharge port. The automatic feedback control system adjusts the screw's rotation speed to control the discharge margin, achieving a discharge accuracy of 0.1mg.

[0009] Preferably, the weighing platform of the device has a container placement platform above it. The robot clamps the opened container into the container placement platform. The lower part is equipped with a high-precision weighing module with a weighing accuracy of 0.1mg. The weighing module is connected to the system and provides real-time data feedback through an automatic feedback system. It works in conjunction with the spiral device to complete the high-precision weighing of the target powder set in the program.

[0010] Preferably, the weighing platform of the device is independent of other platform areas of the automatic weighing equipment, and a shock-absorbing device is provided below the weighing module to ensure that the weighing platform is not affected by other areas.

[0011] Preferably, the device further includes a cleaning device, which includes a motor, a suction cylinder and a dust collection container. When the powder is replaced in the hopper of the material receiving platform, the robot clamps the cleaning device to the hopper and uses the strong suction of the cleaning device to clean the hopper.

[0012] Preferably, the device includes a six-axis AI robot with a long working radius, high positioning accuracy, fast running speed, and a wide operating temperature range. The AI ​​robot's robotic arm can automatically rotate 360°, and the spatial layout of the device is all within the robot's working radius.

[0013] Preferably, the entire process of the device is precisely connected by artificial intelligence robots, realizing a highly efficient, accurate, and fully automated weighing process without human intervention.

[0014] Another object of the present invention is to provide a method of using the high-throughput automatic weighing device for the above-mentioned powder.

[0015] The method of use includes the following steps:

[0016] S1. The robot grips the container inside the container slot and moves it to the capping device, which then unscrews the container cap.

[0017] S2. The robot places the opened container onto the container placement platform of the weighing table;

[0018] S3. The movable slide rail of the material receiving platform moves the target hopper to the top of the container placement platform according to the program settings.

[0019] S4. The motor-controlled screw device feeds material according to the program settings. The automatic feedback system feeds back the weight data obtained by the weighing module to the screw device in real time, adjusts the screw device's feeding scale, and controls the material feeding amount.

[0020] S5. After the container collects the powder from several hoppers set in the program, the robot transfers the container to the capping device, which then screws the container cap onto the container.

[0021] S6. When the powder needs to be replaced in the hopper of the receiving platform, the robot clamps the cleaning equipment to the hopper and uses the strong suction of the cleaning equipment to clean the hopper.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] 1. The high-throughput automatic powder weighing device provided by this invention can achieve rapid, accurate, and fully automated weighing of powders, and can automatically weigh powders with different components and contents according to program settings. Simultaneously, during the automatic weighing process, data from each weighing is recorded for sample recording and full-process traceability, facilitating the tracing of the preparation experiment history.

[0024] 2. The high-throughput automatic weighing device for powders provided by this invention is precisely connected by artificial intelligence robots throughout the entire process, realizing a highly efficient, accurate, and fully automated weighing process without human intervention.

[0025] 3. The high-throughput automatic weighing device for powder provided by the present invention has a high-precision weighing module connected to an automatic feedback system, which can provide real-time data feedback and automatically control the motor-driven screw device, adjust the screw device's rotation scale, and achieve rapid, accurate, and automated weighing.

[0026] 4. The high-throughput automatic weighing device for powder provided by the present invention has a weighing platform that is independent of other platform areas of the automatic weighing equipment, and an anti-vibration device is provided below the weighing module to avoid the weighing platform being affected by vibrations from other areas.

[0027] 5. The high-throughput automatic powder weighing device provided by the present invention includes a cleaning device, which adopts a high-intensity suction dust removal device for convenient and quick cleaning, avoiding cross-contamination of dust during the process of changing raw material powder in the hopper and affecting the experimental results. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the material receiving platform and weighing platform structure of the high-throughput automatic weighing device for powder provided in an embodiment of the present invention.

[0029] Figure 2 This is a schematic diagram of the container tank of the high-throughput automatic weighing device for powder provided in an embodiment of the present invention in the state of no discharge.

[0030] Figure 3 This is a schematic diagram of the discharge state of the container tank of the high-throughput automatic weighing device for powder provided in an embodiment of the present invention.

[0031] Figure 4 This is a top view of the container rack of a high-throughput automatic powder weighing device provided in an embodiment of the present invention.

[0032] Figure 5 A schematic diagram of the capping device of the high-throughput automatic weighing device for powder provided in an embodiment of the present invention.

[0033] Figure 6 This is a schematic diagram of the cleaning device for a high-throughput automatic powder weighing device provided in an embodiment of the present invention.

[0034] Figure 7 A schematic diagram of an artificial intelligence robot for a high-throughput automatic weighing device for powders provided in an embodiment of the present invention.

[0035] Figure 8 This is a schematic diagram of the overall structure of the high-throughput automatic weighing device for powder provided in an embodiment of the present invention. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and the accompanying drawings. However, those skilled in the art will understand that this invention is not limited to the accompanying drawings and the following embodiments.

[0037] Embodiments of the present invention provide a high-throughput automatic weighing device for powders. Figure 8 This is a schematic diagram of its overall structure; detailed structures are as follows: Figure 1-5 As shown. The device includes a material storage area containing containers such as test tubes, such as... Figure 2-4As shown, the material storage area includes a multi-channel inclined automatic dispensing container rack 11, which can realize the automatic dispensing of containers of different specifications at the same time, such as 5ml, 10ml, 15ml, 20ml, 50ml and other specifications of containers, with high container specification tolerance; in addition, the bottom of the automatic dispensing container rack 11 is a container dispensing port 12, and below the container dispensing port 12 is a container slot 16 for placing containers.

[0038] Furthermore, Figure 2 When the container tank is in a non-discharging state, the container 13 that falls from the container rack 11 falls into the container tank 16; Figure 3 As shown, the conveying device 14 in the apparatus pushes out the container trough 16 containing the container 13, putting the container trough in a discharge state. The rear of the container trough 16 is a solid platform 15, which can prevent the container from falling out of the container rack 11 when the container trough is in the discharge state. Furthermore, when the container trough 16 is in the discharge state, the robot arm 17 can remove the container 13 from the container trough 16.

[0039] Furthermore, to avoid powder contamination and ensure thorough mixing in subsequent processes, such as Figure 5 As shown, the device also includes a capping device, which is a vertical structure. The upper end of the device is equipped with a capping clamp 18 and a rotating device 19, while the lower end has a reserved area for a robotic arm to grip the container. The robotic arm 17 removes the container 13 from the container slot 16 and transfers it to the capping device. The robotic arm 17 grips the container body 5, and the capping clamp 18 of the upper capping device clamps and fixes the container cap 8. The rotating device 19 above the capping clamp 18 rotates around its central axis, unscrewing the container cap 8 and separating it from the container body 5, thus completing the capping process. Subsequently, the robotic arm 17 transfers the container body 5 to... Figure 1 The container is placed in the container rack 6 on the weighing platform 10.

[0040] Furthermore, such as Figure 1 As shown, the device includes a receiving platform 9. The device comprises a receiving platform 9 containing several hoppers 1 and movable slide rails 4 mounted on the back of the hoppers 1. The receiving platform 9 includes several parallel hoppers 1, for example, eight hoppers 1, which can weigh eight different powders. Furthermore, each hopper 1 has a capacity of at least 50g of raw material powder, allowing for the placement of appropriate amounts of raw material powder according to usage amounts and frequencies, providing high operational flexibility. The movable slide rails 4 in the device can be programmed to move the target hopper horizontally to directly above the lower container 5 to weigh the powder. Additionally, the device uses a spiral discharge method for the hoppers 1, employing a motor-controlled spiral conveyor to transport and control the flow of the powder, conveying it along the spiral structure to the discharge port 2. An automatic feedback system 3 adjusts the spiral advance of the device to control the discharge margin, achieving a discharge accuracy of 0.1mg at the discharge port 2.

[0041] Furthermore, such as Figure 1 As shown, the device includes a weighing platform 10 equipped with a high-precision weighing module 7 and a vibration-damping table. The weighing accuracy of the weighing module reaches 0.1 mg. The weighing module 7 is connected to the automatic feedback system 3 in the material support platform 9. The automatic feedback control system 3 provides real-time data feedback and the screw device is further rotated by a motor to complete the weighing of the target powder set in the program.

[0042] To further improve weighing accuracy, the present invention provides a preferred embodiment in which the weighing platform 10 of the device is designed to be independent of other platform areas of the automatic weighing equipment, and an anti-vibration device is provided under the weighing module 7, so that the weighing platform 10 is not affected by other areas and can efficiently and accurately complete high-precision weighing work.

[0043] Furthermore, such as Figure 6 As shown, the device also includes a cleaning device. The bottom of the cleaning device is a dust collection container 20, and the top is equipped with a high-suction cleaning device, wherein the upper end is a suction cylinder 22, and the lower end is equipped with a motor 21. When the powder is replaced in the hopper 1 of the material receiving platform 9, the robot arm 17 clamps the cleaning device to the hopper 1, aligns the suction cylinder 22 of the cleaning device with the hopper 1, and uses the high suction of the cleaning device to clean the hopper 1, avoiding cross-contamination between different powders.

[0044] Furthermore, the device includes an AI robot whose base 24 is fixed to a worktable, with a robotic arm 23 having a working radius of 900mm, a positioning accuracy of 0.03mm, and an operating temperature range of 0–45℃. The AI ​​robot's robotic hand 17 can automatically rotate 360°, flexibly completing the various tasks described in the above embodiments of the present invention. In addition, the spatial layout of the device has been rationally calculated, ensuring that all operations are within the robot's working radius.

[0045] The above embodiments of the present invention are merely examples to clearly illustrate the apparatus and its usage method, and are not intended to limit the implementation of the present invention. Those skilled in the art should understand that different modifications can be made based on the above description; however, the technical concepts and features involved in realizing the present invention are considered to be within the scope of the appended claims. Therefore, the present invention is not limited without departing from the scope of the claims. All equivalent transformations or modifications made according to the spirit and essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. A high-throughput automatic weighing device for powders, characterized in that, The automatic weighing device includes a material storage area, a receiving platform, a weighing platform, and a robot; the material storage area includes an automatic discharge container rack, a container trough with a conveying device, and a capping device; the receiving platform includes several hoppers and movable slide rails; the weighing platform includes a container placement platform, a high-precision weighing module, and an automatic feedback system; the robot is controlled by an artificial intelligence system to autonomously complete the programmed tasks.

2. The high-throughput automatic weighing device for powders as described in claim 1, characterized in that, The automatic discharge container rack is a multi-channel inclined automatic discharge container rack. The container rack includes a multi-channel large-capacity container compartment with a downward inclined bottom design. Below the container rack is a container trough equipped with a conveying device to convey the containers to the discharge port for later use.

3. The high-throughput automatic weighing device for powders as described in claim 1, characterized in that, The device has a capping device on one side of the container rack. The capping device is a vertical structure. The upper end of the device is equipped with a capping clamp and a rotating device, and the lower end is a reserved container placement area. The robot transfers the contents of the container slot to the capping device, where the robotic arm holds and fixes the container.

4. The high-throughput automatic weighing device for powders as described in claim 1, characterized in that, The receiving platform includes a number of hoppers (1-8 hoppers, preferably, the size of the receiving platform and the number of hoppers can be increased according to actual needs, wherein each hopper can hold at least 50g of raw material powder), a motor-driven screw conveyor, an automatic feedback control system, and a movable slide rail with a transmission device. Through program setting, the slide rail moves the designated powder inlet to the top of the target container to weigh the powder.

5. The high-throughput automatic weighing device for powders as described in claim 4, characterized in that, The device uses a spiral discharge method for the hopper, employing a spiral conveyor to transport and control the flow of powder. The spiral conveyor is controlled by a motor to rotate the screw in a pressing manner, conveying the powder along the spiral structure to the discharge port. The spiral advance scale is adjusted according to the automatic feedback control system, thereby controlling the discharge margin, and the discharge accuracy at the discharge port reaches 0.1mg.

6. The high-throughput automatic weighing device for powders as described in claim 1, characterized in that, Above the weighing platform of the device is a container placement platform. The robot clamps the opened container into the container placement platform. The lower part is equipped with a high-precision weighing module with a weighing accuracy of 0.1mg. The weighing module communicates with the automatic feedback system and provides real-time data feedback through the automatic feedback system. It works with the spiral device to complete the high-precision weighing of the target powder set in the program.

7. The high-throughput automatic weighing device for powders as described in claim 6, characterized in that, The weighing platform of the device is independent of other platform areas of the automatic weighing equipment, and a shockproof device is installed below the weighing module to ensure that the weighing platform is not affected by other areas.

8. The high-throughput automatic weighing device for powders as described in claim 7, characterized in that, The device also includes a cleaning device, which includes a motor and a suction cylinder covered with a cylindrical outer wall, as well as a telescopic tube connected to a dust collection container; the container can be inverted on the required cleaning device for cleaning.

9. The high-throughput automatic weighing device for powders as described in claim 8, characterized in that, The AI ​​robot is a six-axis robot. Six servo motors directly drive the rotation of the six joint axes through harmonic reducers, synchronous pulleys, etc. Its working radius is 900mm and its positioning accuracy is ±0.03mm. The robot's manipulator can automatically rotate 360°. The spatial layout of the device is all within the robot's working radius. Preferably, the entire process of the device is precisely connected by an artificial intelligence robot.

10. The method of using the high-throughput automatic powder weighing device as described in any one of claims 1-9, characterized in that, Includes the following steps: S1. The robot grips the container inside the container slot and moves it to the capping device, which then unscrews the container cap. S2. The robot places the opened container onto the container placement platform of the weighing table; S3. The movable slide rail of the material receiving platform moves the target hopper to the top of the container placement platform according to the program settings. S4. The screw device inside the hopper feeds material according to the program settings. The automatic feedback system feeds back the weight data obtained by the weighing module to the screw device in real time and adjusts the screw device's feeding scale. S5. After collecting the powder from several hoppers set by the program, the robot transfers the container to the capping device, which then screws the container cap onto the container. S6. When the powder needs to be replaced in the hopper of the receiving platform, the robot clamps the cleaning equipment to the hopper and uses the strong suction of the cleaning equipment to clean the hopper.