Automatic preparation and detection equipment for platinum-carbon catalyst

Abstract

The invention discloses automatic preparation and detection equipment for a platinum-carbon catalyst, which comprises an equipment working platform, and a translation multi-axis mechanical arm arranged on the equipment working platform and capable of moving along the equipment working platform and cooperatively working through the mechanical arm; the discharging device comprises a discharging mechanism and a weighing device and is used for weighing and adding trace powder raw materials; the solution adding device is used for adding a preset solvent into the powder raw material; the stirring and heating device is used for performing closed stirring on the mixture; the automatic suction filtration device is used for realizing solid-liquid separation and automatic storage and taking of filter paper; the man-machine interaction operation device is used for realizing interaction between manpower and equipment; and the post-treatment and detection device is used for carrying out dispersion and electrochemical performance test on the prepared catalyst. According to the automatic preparation and detection equipment, the preparation efficiency of the catalyst can be improved, the full-automatic performance of the equipment is improved, manual intervention is reduced, and personal safety is guaranteed.

Description

Technical Field

[0001] This application relates to the field of laboratory automation equipment, and more specifically, to an automated preparation and testing device for platinum-carbon catalysts. Background Technology

[0002] Currently, in the research and development of precious metal catalysts (such as platinum-carbon catalysts), especially when conducting parallel screening experiments with different formulations (such as the type of carbon powder, the type and ratio of precious metal solutions), the entire process is highly dependent on manual operation. This process typically includes: precise weighing and addition of trace amounts of powder (such as carbon powder), quantitative addition of multiple solutions, prolonged stirring and heating, filtration separation of solution and solid, vacuum drying of filter cake, scraping and transfer of dried material, and subsequent steps such as ultrasonic dispersion, coating, and electrochemical detection.

[0003] In existing technologies, the development of catalysts (such as platinum-carbon catalysts) often suffers from the following shortcomings: 1) The process involves numerous and time-consuming steps, making it impossible to process multiple experimental samples in parallel with manual operation, severely slowing down the development progress. 2) Manual weighing, liquid addition, and stirring operations are easily affected by human factors, making it difficult to guarantee stability at the milligram level or even higher, resulting in large fluctuations in experimental data and unreliable formulation optimization results. 3) In stirring, transfer, and other steps, the precious metal salt solutions or organic solvents used may be toxic or volatile. Traditional open manual operation cannot be effectively sealed, posing a risk of solvent volatilization polluting the environment and endangering the health of operators. 4) In particular, the critical solid-liquid separation step of "vacuum filtration" lacks mature automated equipment on the market. From the grasping, placement, and filtration of filter paper to subsequent cleaning, it all relies entirely on manual labor, becoming the main bottleneck to achieving full-process automation. Summary of the Invention

[0004] The main objective of this application is to provide an automated preparation and testing device for platinum-carbon catalysts, so as to improve the catalyst preparation efficiency, enhance the fully automated performance of the device, reduce manual intervention, and ensure personal safety.

[0005] To achieve the above objectives, this application proposes an automated preparation and testing device for platinum-carbon catalysts, comprising: a working platform, and a multi-axis translational robotic arm mounted on the working platform, configured to move along the working platform and work collaboratively; a feeding device, including a feeding mechanism and a weighing device, for micro-weighing and adding powdered raw materials; a solution adding device, for adding a preset solvent to the powdered raw materials; a stirring and heating device, for closed-loop stirring of the mixture; an automatic filtration device, for achieving solid-liquid separation and automated storage and retrieval of filter paper; a human-machine interface device, for enabling interaction between humans and the equipment; and a post-processing and testing device, for dispersing the prepared catalyst and testing its electrochemical performance. The multi-axis translational robotic arm, through the human-machine interface device, can work collaboratively with the feeding device, solution adding device, stirring and heating device, and automatic filtration device, thereby enabling full-process operation from raw material preparation to performance testing.

[0006] Furthermore, the translational multi-axis robotic arm includes: a linear motion module, which is set on the equipment working platform, the linear motion module including a linear drive mechanism and a moving part driven by the linear drive mechanism; and a multi-axis robotic arm, which is set on the moving part, the end of the multi-axis robotic arm is equipped with a quick-change interface; wherein, the multi-axis robotic arm can achieve coordinated work with the feeding device, solution adding device, stirring and heating device, and automatic filtration device under the drive of the moving part.

[0007] Furthermore, the feeding device includes: a fixed base; a material barrel, which is set on the fixed base and has a feeding port at the bottom, and is used to store the target powder; a drive mechanism, which is set on the fixed base and located directly above the material barrel; and a rotating pressure rod, which is set inside the material barrel and connected to the drive mechanism. The rotating pressure rod is provided with helical blades, and the drive mechanism is used to drive the rotating pressure rod to rotate along the axis. The diameter and pitch of the helical blades are configured to gradually decrease from top to bottom along the axial direction of the rotating pressure rod, so as to form a compression channel with a larger top and a smaller bottom inside the material barrel. A radial gap for powder output is formed between the feeding port and the end of the rotating pressure rod.

[0008] Furthermore, it also includes a modular quick-change device, which includes a torque transmission structure, comprising: a polygonal connecting sleeve disposed at the drive end of the rotating pressure rod; a polygonal driving sleeve sleeved and fixed on the drive shaft of the drive mechanism; and a locking structure for fixing the polygonal connecting sleeve and the polygonal driving sleeve together.

[0009] Furthermore, the modular quick-change device also includes a radial positioning structure, which includes: a receiving slide structure fixed on a fixed base, the receiving slide structure having a groove for horizontal sliding; and a snap-fit ​​slide structure detachably connected to the receiving slide structure, the snap-fit ​​slide structure having a groove for fitting the receiving slide structure; wherein, a guide flange is formed on the outer periphery of the material bucket, and a guide groove is formed on the side wall of the receiving slide structure that slides with the guide flange, and the snap-fit ​​slide structure is used to fix the material bucket within the receiving slide structure.

[0010] Furthermore, the stirring and heating device includes: a support frame with a beaker placement position for holding a beaker containing a solution to be processed; a main drive unit mounted on the support frame; a sealing mechanism positioned above the beaker placement position and connected to the main drive unit, the sealing mechanism including an elastic clamping component for sealing the rim of the beaker; and a stirring assembly positioned above the beaker placement position and connected to the main drive unit, the stirring assembly including a stirring paddle coaxially mounted at the center of the sealing mechanism, the stirring paddle extending downwards into the interior of the beaker; wherein the main drive unit drives the sealing mechanism and the stirring assembly to move up and down, so that the elastic clamping component and the stirring paddle can connect to and disconnect from the beaker.

[0011] Furthermore, it also includes a heating unit, which is located below the beaker placement position and is used to heat the placed beaker. The heating unit integrates a sensor for real-time temperature monitoring.

[0012] Furthermore, it also includes an automatic cleaning component located to the side of the beaker placement position, used to clean the stirring paddle after stirring is completed. The automatic cleaning component includes: a bottom translation device mounted on the support frame, with a translation slide on the bottom translation device; and a cleaning tank arranged parallel to the beaker placement position on the translation slide. The bottom translation device drives the cleaning tank to reciprocate horizontally to directly below the stirring paddle.

[0013] Furthermore, the automatic filtration device includes: a support frame on which a filtration platform is mounted; a filter paper tray seat on the filtration platform, wherein a vertically extending filtration channel is formed within the filter paper tray seat, and the top surface of the filter paper tray seat is used to support the filter paper; a suction component disposed within the filtration channel, wherein the top end of the suction component is sealed to the top surface of the filter paper tray seat, the suction component is provided with a negative pressure interface for connecting to a negative pressure source, and the bottom of the suction component is provided with a connection port; a filtration receiving container, the top opening of which is detachable and sealed to the connection port; and a funnel assembly including a funnel and a vertical drive assembly, wherein the vertical drive assembly is disposed on the filtration platform, and its drive end is used to control the raising and lowering of the funnel directly above the filter paper tray seat; wherein the vertical drive assembly is configured to: drive the funnel to descend to press the filter paper between the filter paper tray seat and the funnel to form a seal; and drive the funnel to rise to disengage from the filter paper tray seat.

[0014] Furthermore, it also includes a filter paper gripping and releasing mechanism, which includes: a filter paper tray for pre-storing filter paper; a gripping mechanism driven by a multi-axis robotic arm, the gripping mechanism including a gripping base plate connected to the multi-axis robotic arm and several gripping pins fixed vertically downward on the gripping base plate, the several gripping pins being used to pierce the non-working area of ​​the filter paper to achieve gripping; and a ejection mechanism disposed on the gripping mechanism, the ejection mechanism including an ejection component that can move along the axial direction of the gripping pins, the ejection component being used to push the filter paper downward to detach it; wherein, several channels are formed on the filter paper tray at the position of the non-working area of ​​the filter paper, the several channels corresponding one-to-one with the position of the gripping pins when gripping the filter paper.

[0015] The automated preparation and testing equipment of the present invention has the following advantages: 1) It realizes the automation of core steps from weighing, mixing, reaction, separation to post-processing, and supports multi-channel parallel processing, freeing R&D personnel from lengthy and repetitive labor and greatly improving experimental throughput and R&D efficiency; 2) High-precision screw extrusion feeding, quantitative liquid addition, and programmed temperature-controlled stirring eliminate human operation errors, ensure high repeatability and reliability of experimental data, and provide a solid foundation for precise formulation optimization. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application. In the drawings: Figure 1 A schematic diagram of the automated preparation and testing equipment for platinum-carbon catalysts provided in this application; Figure 2 Another structural schematic diagram of the automated preparation and testing equipment provided in this application; Figure 3 This is a schematic diagram of the structure of the translational multi-axis robotic arm provided in this application; Figure 4 This is a schematic front view of the structure of the feeding device provided in this application; Figure 5 for Figure 4 A schematic cross-sectional view of the feeding device along the AA direction; Figure 6 for Figure 4 The diagram shows the structure of the material hopper of the feeding device. Figure 7 for Figure 6 A schematic cross-sectional view of the material hopper of the feeding device along the BB direction; Figure 8 for Figure 4 A schematic diagram of the main structure of the receiving chute of the feeding device shown; Figure 9 for Figure 8 The diagram shows the bottom view of the receiving chute structure. Figure 10 for Figure 4 A schematic diagram of the main structure of the fastening chute of the feeding device shown; Figure 11 for Figure 10 The diagram shows the bottom view of the interlocking groove structure. Figure 12 A schematic diagram of the stirring and heating device provided in this application; Figure 13 for Figure 12 A schematic diagram of the stirring and heating device shown along the CC direction; Figure 14 for Figure 12 The diagram shown is a structural schematic of the stirring and heating device along the DD direction. Figure 15 A schematic diagram of the automatic filtration device provided in this application; Figure 16 for Figure 15 A side sectional view of the automatic filtration device shown. Figure 17 for Figure 15 The diagram shows the structure of the funnel-groove assembly. Figure 18 for Figure 15 The diagram shows the structure of the filter paper gripping and releasing mechanism. Figure 19 for Figure 18 The diagram shows the structure of the gripping mechanism of the filter paper gripping and releasing mechanism; Figure 20 for Figure 19 A side view of the gripping mechanism shown. Figure 21 for Figure 20 A schematic diagram of the gripping mechanism along the EE direction; Figure 22 for Figure 19 The diagram shows the bottom view of the gripping mechanism. Figure 23 for Figure 22 The diagram shows the structure of the gripping mechanism along the FF direction; Figure 24 A schematic diagram of the filter paper tray of the filter paper gripping and releasing mechanism provided in this application.

[0017] The attached figures are labeled as follows: 100-Automated preparation and testing equipment; 101-Equipment working platform; 10-Translational multi-axis robotic arm; 11-Linear movement module; 111-Linear drive mechanism; 112-Moving component; 12-Multi-axis robotic arm; 120-Unloading device; 20-Unloading mechanism; 220-Weighing device; 21-Fixed base; 22-Material bucket; 221-Cylindrical structure; 222-Conical cylindrical structure; 23-Drive mechanism; 24-Rotating pressure rod; 241-Helical blade; 2 43-Stirring rod section, 244-Helical rod section, 2431-Radial stirring section, 25-Torque transmission structure, 251-Polygonal connecting sleeve, 252-Polygonal driving sleeve, 26-Radial positioning structure, 261-Receiving chute structure, 2611-Gate, 262-Snap-fitting chute structure, 30-Solution adding device, 40-Stirring and heating device, 41-Support frame, 42-Beaker placement position, 43-Main drive unit, 44-Sealing mechanism, 441-Elastic clamping assembly, 4411- 4412-Sealing element, 45-Stirring assembly, 451-Stirring paddle, 452-Stirring drive device, 46-Heating unit, 47-Automatic cleaning assembly, 471-Bottom translation device, 472-Cleaning tank, 473-Nozzle, 50-Automatic filtration device, 51-Support frame, 511-Filtration platform, 512-Filter paper tray seat, 5121-Filtration channel, 513-Suction component, 5131-Negative pressure interface, 514-Filtration receiving container, 52-Function trough assembly 521-Funnel groove, 522-Vertical drive assembly, 5221-Vertical linear module, 5222-Gripper drive device, 5223-Gripper assembly, 5224-Horizontal linear module, 60-Human-machine interaction operation device; 70-Post-processing and detection device, 80-Filter paper gripping and releasing mechanism, 81-Filter paper tray, 811-Channel, 82-Gripping mechanism, 83-Gripping substrate, 84-Gripping needle, 85-Connecting base, 90-Ejection mechanism, 91-Ejection component, 92-Connecting plate. Detailed Implementation

[0018] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0019] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0020] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0021] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0022] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linked," and "socketing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0023] Figure 1 and Figure 2 An automated preparation and testing apparatus 100 for platinum-carbon catalysts according to this application is shown. Figure 1 and Figure 2 As shown, the automated preparation and testing equipment 100 includes: a work platform 101, and a multi-axis translational robotic arm 10 mounted on the work platform 101, which is configured to move along the work platform 101 and work collaboratively; a feeding device 120, which includes a feeding mechanism 20 and a weighing device 220, for micro-weighing and adding powder raw materials; a solution adding device 30, for adding a preset solvent to the powder raw materials; a stirring and heating device 40, for closed-loop stirring of the mixture; an automatic filtration device 50, for realizing solid-liquid separation and automated storage and retrieval of filter paper; a human-machine interaction device 60, for realizing human-machine interaction with the equipment; and a post-processing and testing device 70, for dispersing and electrochemical performance testing of the prepared catalyst. The multi-axis translational robotic arm 10, through the human-machine interaction device 60, can work collaboratively with the feeding device 120, the solution adding device 30, the stirring and heating device 40, and the automatic filtration device 50, thereby enabling full-process operation from raw material preparation to performance testing.

[0024] In practical use, the automated preparation and testing equipment 100 according to an embodiment of the present invention firstly uses a translational multi-axis robotic arm 10 (e.g., a six-axis robot) to pick up a beaker for testing from a designated location (e.g., a beaker storage component set on the equipment's working platform 101) and precisely place it inside the windproof cover of the weighing device 220 (high-precision balance). The feeding mechanism 20 achieves high-precision powder addition at the ±0.005g (5mg) level. After powder addition is completed, the translational multi-axis robotic arm 10 moves the beaker to the station of the solution adding device 30 to achieve quantitative liquid addition, adding a specified volume of solution to the beaker via a high-precision injection pump. Next, the translational multi-axis robotic arm 10 places the beaker containing the mixed powder and solution on the positioning seat of the stirring and heating device 40 for stirring. After stirring is completed, the translational multi-axis robotic arm 10 pours the material from the stirred and heated mixed solution beaker into the funnel of the automatic suction filtration device 50, which has been fitted with filter paper. The vacuum pump is activated, and the liquid flows under negative pressure through the filter paper into the conical flask below the automatic filtration device 50, while the solid catalyst is trapped on the filter paper. Then, the multi-axis translational robotic arm 10 transfers the filter paper containing the solid catalyst cake to a filter paper tray, which is then placed in a drying oven for subsequent vacuum drying (e.g., 42°C, 24 hours). Finally, after drying, the catalyst cake on the filter paper is manually scraped off and placed into several small test tubes, along with other solutions. Subsequently, the multi-axis translational robotic arm 10 picks up the small test tubes and moves them to the ultrasonic station for ultrasonic dispersion, forming a uniform "ink"-like suspension. After ultrasonication, the multi-axis translational robotic arm 10 places the test tubes onto the test tube opening mechanism, which opens the test tubes. The robot then changes the pipette quick-change hand (located on the quick-change hand storage device) and automatically uses the pipette to draw the suspension from the test tube, coating it onto the filter paper substrate of the dedicated electrode (drying while coating). After coating, the electrode is manually installed into a multi-channel electrochemical detector (such as the M204 model, 14 channels), and the detector is started to obtain the electrochemical performance data of the catalyst for formulation optimization.

[0025] With the above settings, the automated preparation and testing equipment 100 according to the embodiments of the present invention has the following advantages: 1) It realizes the automation of core steps from weighing, mixing, reaction, separation to post-processing, and supports multi-channel (such as 6 channels) parallel processing, freeing R&D personnel from tedious and repetitive labor, and greatly improving experimental throughput and R&D efficiency; 2) High-precision screw extrusion feeding, quantitative liquid addition, and programmed temperature-controlled stirring eliminate human operation errors, ensure high repeatability and reliability of experimental data, and provide a solid foundation for precise formula optimization.

[0026] Please refer to Figure 3Furthermore, the translational multi-axis robotic arm 10 includes: a linear motion module 11, which is mounted on the equipment work platform 101, the linear motion module 11 including a linear drive mechanism 111 and a moving component 112 driven by the linear drive mechanism 111; and a multi-axis robotic arm 12, which is mounted on the moving component 112, the end of the multi-axis robotic arm 12 being equipped with a quick-change interface. The multi-axis robotic arm 12, driven by the moving component 112, can work collaboratively with the feeding device 120, the solution adding device 30, the stirring and heating device 40, and the automatic filtration device 50.

[0027] In this application, the linear motion module 11 can adopt a servo motor driven ball screw structure, and the moving part 112 slides with the guide rail, its stroke covering the operating area of ​​each functional module on the equipment work platform 101. The multi-axis robotic arm 12 is rigidly connected to the moving part 112 via a flange, and the end of the robotic arm is equipped with a quick-change interface, which can quickly dock with different end effectors in the quick-change storage device. Both the linear drive mechanism 111 and the multi-axis robotic arm 12 communicate with the main controller of the equipment via a bus to achieve precise planning of the motion trajectory. In this way, by presetting the workflow through the human-machine interface, the main controller drives the linear motion module 11 to move the multi-axis robotic arm 12 to the target workstation according to the task instructions. The robotic arm automatically grabs the corresponding end effector through the quick-change interface to complete actions such as material transfer, reagent addition, or device operation. When switching tasks, the robotic arm returns to the quick-change storage device to change the end effector and continues to execute the subsequent process.

[0028] Through the above configuration, the modular design enables flexible docking between the robotic arm and multiple devices, expanding the equipment's functional compatibility. The servo drive system ensures motion positioning accuracy and improves operational repeatability. The quick-change interface design shortens tool changeover time and improves overall equipment operating efficiency. The centralized control collaborative working mode reduces manual intervention, lowers operational errors, and is suitable for the continuous operation requirements of automated production lines.

[0029] Please refer to Figures 4 to 5 Furthermore, the feeding device 120 includes: a fixed base 21; a material barrel 22, which is disposed on the fixed base 21 and has a feeding port at its bottom, and is used to store the target powder; a drive mechanism 23, which is disposed on the fixed base 21 and located directly above the material barrel 22; and a rotating pressure rod 24, which is disposed inside the material barrel 22 and connected to the drive mechanism 23. The rotating pressure rod 24 is provided with helical blades 241, and the drive mechanism 23 is used to drive the rotating pressure rod 24 to rotate along its axis. The diameter and pitch of the helical blades 241 are configured to gradually decrease from top to bottom along the axial direction of the rotating pressure rod 24, so as to form a compression channel with a larger top and a smaller bottom inside the material barrel 22. A radial gap for powder output is formed between the feeding port and the end of the rotating pressure rod 24.

[0030] According to the embodiment of the present invention, the feeding device 120 uses a multi-axis robotic arm 10 to grab a clean beaker and transport it to the bottom of the material tank 22. Under the drive of the drive mechanism 23 (e.g., a stepper motor), the drive mechanism 23 drives the rotating pressure rod 24 to rotate at a preset speed and time. After the powder is squeezed and metered by the compression channel of the spiral blade 241 (larger at the top and smaller at the bottom), it is squeezed out from the feeding port with radial gap and falls into the beaker (subsequently weighed by a balance (accuracy up to 0.005g)).

[0031] With the above settings, the feeding device 120 according to the embodiment of the present invention adopts a variable diameter and variable pitch screw extrusion structure, which can achieve high-precision quantitative feeding, thereby meeting the stringent requirements of high-end catalyst research and development for the addition of trace powders, and at the same time, meeting the needs of automated operation.

[0032] Please refer to Figure 6 and Figure 7 Furthermore, the material bucket 22 may include a cylindrical structure 221 and a conical cylindrical structure 222 connected to the bottom of the cylindrical structure 221. The helical blade 241 is located at least inside the conical cylindrical structure 222, and the helical blade 241 is slidably attached to the inner peripheral wall of the conical cylindrical structure 222.

[0033] In this application, during the preparation of the platinum-carbon catalyst, the target powder is loaded into the cylindrical structure 221 of the feed hopper 22, and the powder enters the conical cylindrical structure 222 under the action of gravity. The drive mechanism 23 drives the rotating pressure rod 24 to rotate, and the helical blade 241 rotates inside the conical cylindrical structure 222. Since the diameter of the helical blade 241 gradually decreases from top to bottom along the axial direction and slides against the inner peripheral wall of the conical cylindrical structure 222, the powder is continuously squeezed and conveyed downwards, and finally quantitatively output from the discharge port.

[0034] Through the above configuration, on the one hand, the conical cylindrical structure 222, in conjunction with the variable-diameter spiral blades 241, forms a gradual compression channel, thereby enhancing the powder extrusion effect, preventing powder accumulation and blockage, and improving feeding stability. On the other hand, the sliding contact design between the spiral blades 241 and the cylinder wall reduces powder residue, and combined with the precise control of the drive mechanism 23, high-precision feeding is achieved. Furthermore, the cylindrical structure 221 is used to store sufficient powder, while the conical cylindrical structure 222 focuses on precise conveying; the overall design balances storage and metering requirements, improving the practicality of the device.

[0035] Please continue to refer to Figure 7 Furthermore, the rotating pressure rod 24 may include a stirring rod portion 243 and a spiral rod portion 244, with spiral blades 241 formed on the spiral rod portion 244, wherein the stirring rod portion 243 is provided with a plurality of radial stirring portions 2431.

[0036] In this application, when the drive mechanism 23 drives the rotating pressure rod 24 to rotate, the radial stirring part 2431 of the stirring rod part 243 stirs and disperses the powder in the upper part of the material barrel 22, thereby breaking the "bridging" structure formed by the powder due to long-term static placement, and allowing the powder to fall evenly into the spiral rod part 244. The spiral rod part 244 conveys and compresses the powder downward through the variable diameter and pitch spiral blades 241, and finally outputs it through the discharge port.

[0037] Please refer to Figure 5 Furthermore, it also includes a modular quick-change device, which includes a torque transmission structure 25. The torque transmission structure 25 includes: a polygonal connecting sleeve 251, which is disposed at the driving end of the rotating pressure rod 24; a polygonal driving sleeve 252, which is sleeved and fixed on the driving shaft of the driving mechanism 23; and a locking structure, which is used to fix the polygonal connecting sleeve 251 and the polygonal driving sleeve 252 together.

[0038] In this application, when replacing the entire module of the material bucket 22 (including the rotating pressure rod 24) or only replacing the rotating pressure rod 24, the locking structure can be loosened first, the polygonal connecting sleeve 251 and the polygonal driving sleeve 252 can be separated, the old material bucket 22 entire module or the rotating pressure rod 24 can be removed, the new material bucket 22 entire module (including the rotating pressure rod 24) and the polygonal connecting sleeve 251 of the rotating pressure rod 24 can be aligned with the polygonal driving sleeve 252 of the drive mechanism 23 and fitted together, and fixedly connected by the locking structure to complete the rapid assembly of the torque transmission structure 25.

[0039] Through the above configuration, on the one hand, the polygonal sleeve, combined with the locking mechanism, enables quick assembly and disassembly, improving equipment maintenance efficiency compared to traditional bolt connections; on the other hand, the large contact surface of the polygonal structure, combined with the locking mechanism, eliminates connection gaps, ensuring slip-free torque transmission and guaranteeing drive precision. Furthermore, replacement can be completed without special tools, reducing operator skill requirements and adapting to scenarios requiring frequent model changes.

[0040] Please refer to Figures 8 to 11 Furthermore, the modular quick-change device also includes a radial positioning structure 26, which includes: a receiving slide structure 261, which is fixed on the fixed base 21, and a slot 2611 for horizontal sliding is formed on the receiving slide structure 261; and a fastening slide structure 262, which is detachably connected to the receiving slide structure 261, and a slot 2611 for fitting the receiving slide structure 261 is formed in the fastening slide structure 262; wherein, a guide flange is formed on the outer periphery of the material bucket 22, and a guide groove is formed on the side wall of the receiving slide structure 261 to slide and engage with the guide flange, and the fastening slide structure 262 is used to fix the material bucket 22 in the receiving slide structure 261.

[0041] In this application, when installing the material bucket 22, the guide flange on the outer periphery of the material bucket 22 is aligned with the guide groove of the receiving slide structure 261, and it is slid horizontally into the groove opening 2611 to the preset position. Then, the snap-fit ​​slide structure 262 is fitted and fixed to the outside of the receiving slide structure 261, thus completing the radial positioning and fixing of the material bucket 22. For disassembly, the snap-fit ​​slide structure 262 is first removed, and the material bucket 22 is then slid out along the guide groove in the opposite direction.

[0042] Through the above-mentioned design, on the one hand, the horizontal sliding design combined with the guide structure enables tool-less and rapid replacement of the material bucket 22, reducing the time significantly compared to the traditional bolt fixing method; on the other hand, the precise fit between the guide flange and the guide groove ensures the coaxiality error between the material bucket 22 and the rotating pressure rod 24, guaranteeing material feeding stability. Furthermore, the snap-fit ​​sliding groove structure 262 forms a double-wrap fixation, capable of withstanding the radial load when the material bucket 22 is fully loaded, preventing displacement deviations caused by vibration during operation.

[0043] Furthermore, it may also include a lateral moving mechanism and a longitudinal moving mechanism disposed on the lateral moving mechanism, with the fixed base 21 disposed on the longitudinal moving mechanism.

[0044] In this application, the control system operates the lateral and longitudinal moving mechanisms respectively, driving the fixed base 21 to move in the horizontal and vertical directions, thereby adjusting the relative position of the material discharge port of the material bucket 22 with respect to the target station. After position calibration is completed, the moving mechanisms are locked to maintain the positioning state, and the material feeding process can then be started.

[0045] Through the above-described configuration, the combination of lateral and longitudinal moving mechanisms enables three-dimensional adjustment of the material feeding position, adapting to target containers or workstation layouts of different sizes. During movement, precision guide rails and drive components work together to ensure the stability and accuracy of position adjustment, preventing powder spillage or decreased feeding precision due to positional deviations. When not in operation, the device can be moved to a safe area, saving operating space and reducing the risk of collisions.

[0046] Please refer to Figures 12 to 14Furthermore, the stirring and heating device 40 includes: a support frame 41 with a beaker placement position 42 for holding a beaker containing the solution to be processed; a main drive unit 43 mounted on the support frame 41; a sealing mechanism 44 positioned above the beaker placement position 42 and connected to the main drive unit 43, the sealing mechanism 44 including an elastic clamping component 441 for sealing the rim of the beaker; and a stirring component 45 positioned above the beaker placement position 42 and connected to the main drive unit 43, the stirring component 45 including a stirring paddle 451 coaxially mounted at the center of the sealing mechanism 44, the stirring paddle 451 extending downwards to penetrate into the beaker. The main drive unit 43 drives the sealing mechanism 44 and the stirring component 45 to move up and down, allowing the elastic clamping component 441 and the stirring paddle 451 to connect and disconnect from the beaker.

[0047] According to an embodiment of the present invention, the stirring device for preparing a platinum-carbon catalyst, in specific use, for example during the preparation of the platinum-carbon catalyst, firstly, a translational multi-axis robotic arm 10 places a beaker containing the solution to be processed onto the beaker placement position 42. Driven by the main drive unit 43, the sealing mechanism 44, through its elastic pressing component 441, seals the rim of the beaker. The sealed beaker is then stirred by the stirring paddle 451 of the stirring component 45 (when heating is required, the heating unit described below can be activated). The stirring paddle 451 is driven to extend into the solution within the beaker for stirring. After a preset stirring time, the sealing mechanism 44 and the stirring component 45 rise together, separating from the beaker and returning to their initial height.

[0048] With the above-described configuration, compared to traditional open-type stirring devices, the stirring device of this embodiment has the following advantages: 1) The sealing fit between the elastic clamping component 441 and the beaker rim effectively prevents solution evaporation or external impurities from entering during stirring, improving the airtightness and stability of the reaction environment, ensuring operator safety, and meeting environmental protection requirements. 2) The main drive unit 43 integrates control of the synchronous lifting and lowering of the sealing and stirring components 45, simplifying the operation process and shortening the equipment response time, adapting to the continuous operation requirements of automated production lines, and is especially suitable for platinum-carbon catalyst preparation scenarios that are sensitive to reaction conditions.

[0049] Please continue to refer to Figures 12 to 14 Furthermore, the elastic pressing assembly 441 may include: an elastic structural member 4411 (such as a compressible spring), one end of which is connected to the main drive unit 43 and the other end of which faces the mouth of the beaker; and a sealing element 4412 (such as a cup-shaped sealing gasket), which is disposed at the other end of the elastic structural member 4411; wherein the elastic sealing element 4412 of the elastic structural member 4411 can be tightly pressed against the edge of the mouth of the beaker.

[0050] In this application, the main drive unit 43 drives the sealing mechanism 44 downward. When the sealing element 4412 contacts the rim of the beaker, the elastic structural member 4411 is compressed and generates elastic force, causing the sealing element 4412 to fit tightly against the rim of the beaker to achieve a seal. After stirring is completed, the main drive unit 43 drives the sealing mechanism 44 upward, the elastic structural member 4411 recovers its deformation, and the sealing element 4412 disengages from the rim of the beaker.

[0051] Through the above-described configuration, the elastic force of the elastic structural member 4411 enables the sealing element 4412 to adapt to minor unevenness at the beaker rim, thereby ensuring reliable sealing. Furthermore, the flexible contact between the sealing element 4412 and the beaker rim avoids damage to the beaker caused by rigid compression, while also enabling rapid sealing and detachment, improving operational efficiency.

[0052] Furthermore, the main drive unit 43 may be a rodless cylinder, with its moving parts connected to the elastic clamping assembly 441 to drive the elastic structural member 4411 to move up and down in the vertical direction.

[0053] In this application, the rodless cylinder can adjust the extension and retraction of the moving part through a pneumatic control system to drive the elastic clamping assembly 441 to rise and fall vertically. When the moving part extends, it drives the elastic clamping assembly 441 downward and presses it against the rim of the beaker to achieve a seal. When the moving part retracts, it drives the elastic clamping assembly 441 upward to disengage from the beaker, completing the pick-up and drop operation.

[0054] With the above settings, the rodless cylinder drive method has the characteristics of fast response and smooth operation. It can accurately control the lifting stroke of the elastic clamping component 441. Combined with the buffering effect of the elastic structural component 4411, it can not only ensure stable sealing pressure, but also avoid rigid impact on the beaker, thereby improving the safety and reliability of the device operation.

[0055] Please continue to refer to Figures 12 to 14 Furthermore, the stirring assembly 45 may include a stirring drive 452 (e.g., a servo motor) mounted at the center of the elastic clamping assembly 441, with the output axis of the stirring drive 452 extending downward and connected to the stirring paddle 451.

[0056] In this application, the stirring drive device 452 is installed at the center of the elastic clamping assembly 441. After the elastic clamping assembly 441 seals the beaker, the stirring drive device 452 is started, and the stirring paddle 451 is driven to rotate inside the beaker through the output shaft, thereby realizing the stirring of the solution.

[0057] The above-described central mounting design ensures that the stirring paddle 451 is coaxial with the beaker, thereby improving the uniformity of stirring. Furthermore, the integrated design of the stirring drive device 452 and the elastic clamping assembly 441 reduces the space occupied by the device while ensuring a stable seal during stirring, preventing solution leakage or external contamination, and enhancing the safety and reliability of experimental operations.

[0058] Please continue to refer to Figures 12 to 14 Furthermore, it also includes a heating unit 46, which is located below the beaker placement position 42 for heating the placed beaker. The heating unit 46 integrates a sensor for real-time temperature monitoring.

[0059] In this application, a beaker containing the solution to be processed is placed in beaker placement position 42. The heating unit 46 is activated by the controller, and the sensor monitors and provides feedback on the heating temperature in real time, ensuring that the solution reacts within the set temperature range. This precise alignment design between the heating unit 46 and the beaker placement position 42 enables uniform heating of the solution. Furthermore, the integrated temperature sensor monitors the heating status in real time to prevent abnormal temperatures from affecting the reaction process, thus providing a stable temperature environment for the solution reaction and ensuring the reliability of the experimental results.

[0060] Furthermore, the heating unit 46 can be an asbestos heating plate with an embedded heating wire; the sensor can be a thermocouple or a PT100 type temperature sensor.

[0061] Please continue to refer to Figures 12 to 14 Furthermore, it also includes an automatic cleaning component 47, located to the side of the beaker placement position 42, for cleaning the stirring paddle 451 after stirring. The automatic cleaning component 47 includes: a bottom translation device 471, mounted on the support frame 41, with a translation slide on the bottom translation device 471; and a cleaning tank 472, arranged parallel to the beaker placement position 42 on the translation slide. The bottom translation device 471 drives the cleaning tank 472 to reciprocate horizontally until it is directly below the stirring paddle 451.

[0062] In this application, after stirring is completed, the bottom translation device 471 drives the translation slide to move via the auxiliary drive unit, and moves the cleaning tank 472 horizontally to directly below the stirring paddle 451. The main drive unit 43 drives the stirring assembly 45 downward to immerse the stirring paddle 451 into the cleaning tank 472. After cleaning is completed, the stirring assembly 45 moves upward to reset, and the bottom translation device 471 moves the cleaning tank 472 back to its initial position.

[0063] Through the above-described configuration, the horizontal sliding design enables rapid switching between the cleaning tank 472 and the beaker placement position 42, thereby avoiding spatial interference. Furthermore, the automated cleaning process reduces manual operation, lowers the risk of cross-contamination, and improves the continuous operating efficiency of the equipment.

[0064] Please continue to refer to Figures 12 to 14 Furthermore, a nozzle 473 is provided above the cleaning tank 472 facing the agitator 451 for spraying cleaning liquid onto the agitator 451, and a pipeline (not shown in the figure) is connected to the bottom of the cleaning tank 472 for discharging waste liquid.

[0065] In this application, an external cleaning fluid supply system can be connected to the nozzle 473, and an external waste fluid collection device can be connected to the bottom pipeline. During cleaning, the nozzle 473 sprays cleaning fluid onto the agitator 451 immersed in the cleaning tank 472, and the agitator 451 is started to rotate simultaneously to enhance the cleaning effect. After cleaning, the waste fluid is automatically discharged through the bottom pipeline.

[0066] With the above-described configuration, the spray design of the top nozzle 473 enables all-around rinsing of the agitator 451, and the rotation of the agitator 451 further enhances cleaning efficiency. The bottom waste liquid pipeline ensures rapid drainage of residual liquid after cleaning, thus preventing secondary pollution caused by waste liquid residue. This application, through integrated spraying and drainage, effectively simplifies the cleaning process and improves the automation level and ease of operation of the equipment.

[0067] Please refer to Figure 15 and Figure 17 Furthermore, the automatic filtration device 50 includes: a support frame 51 on which a filtration platform 511 is mounted; a filter paper tray seat 512 on the filtration platform 511, wherein a vertically extending filtration channel 5121 is provided inside the filter paper tray seat 512, and the top surface of the filter paper tray seat 512 is used to support the filter paper; a suction component 513 disposed within the filtration channel 5121, wherein the top end of the suction component 513 is sealed to the top surface of the filter paper tray seat 512, the suction component 513 is provided with a negative pressure interface 5131 for connecting to a negative pressure source, and the bottom of the suction component 513 is provided with a connection port; a filtration receiving container 514, the top opening of which is detachable and sealed to the connection port; and a funnel trough assembly 52, including a funnel trough 521 and a vertical drive assembly 522, wherein the vertical drive assembly 522 is disposed on the filtration platform 511, and its drive end is used to control the funnel trough 521 to rise and fall directly above the filter paper tray seat 512. The vertical drive assembly 522 is configured to: drive the funnel groove 521 downward to press the filter paper between the filter paper tray seat 512 and the funnel groove 521 and form a seal; and drive the funnel groove 521 upward to disengage from the filter paper tray seat 512.

[0068] In practical use, the automatic filtration device 50 according to an embodiment of the present invention can be used by a robot (such as the filter paper gripping and releasing mechanism described below) or manually to lay the filter paper on the top surface of the filter paper tray 512. After the device is started, the vertical drive component 522 drives the funnel groove 521 to descend, pressing and sealing the edges of the filter paper. The material to be filtered is injected into the funnel groove 521, and the negative pressure device is activated at the same time. After the filtrate is filtered by the filter paper, it flows into the filtration receiving container 514 through the suction component 513. The filtered sample solids remain on the filter paper. After filtration is completed, the vertical drive component 522 drives the funnel groove 521 to rise and reset, and the filtrate can be removed by unscrewing the filtration receiving container 514.

[0069] Through the above-described configuration, the automatic filtration device 50 of this embodiment of the invention has the following advantages: 1) By completely replacing almost all manual steps in the filtration process, it achieves seamless integration with upstream automatic feeding, stirring, and downstream automatic drying, thereby effectively improving catalyst development efficiency and the repeatability of experimental data. 2) Through automated sealing operation and remote control, human-machine isolation is achieved, effectively preventing experimental personnel from directly contacting toxic and harmful chemical reagents, significantly reducing occupational health risks and the probability of safety accidents. 3) The device integrates automatic positioning, compression sealing, filtration, and cleaning (described below) into one unit, with a simple and reasonable structural design, reliable operation, and convenient maintenance, reducing the complexity and cost of the fully automatic system. 4) The entire process is controlled by a program, and parameters such as filtration time, vacuum degree, and cleaning time can be precisely set and recorded, which is beneficial for process optimization and standardization.

[0070] Please continue to refer to Figure 15 and Figure 17 Furthermore, the vertical drive assembly 522 may include: a vertical linear module 5221, disposed on the filter platform 511; a gripper drive device 5222, disposed on the moving part 112 of the vertical linear module 5221; and a gripper assembly 5223, disposed on the drive end of the gripper drive device 5222 and used to grip or release the funnel groove 521.

[0071] In this application, the vertical linear module 5221 can achieve linear drive through a ball screw or synchronous belt transmission structure, and its moving part 112 and the gripper drive device 5222 can be rigidly connected by bolts. The gripper drive device 5222 can adopt a linkage mechanism driven by a rodless cylinder or a servo motor, and the gripping end of the gripper assembly 5223 is provided with an arc-shaped contact surface adapted to the outer wall of the funnel groove 521. When it is necessary to move the funnel groove 521, the gripper drive device 5222 drives the gripper assembly 5223 to close to clamp the outer wall of the funnel groove 521, and the vertical linear module 5221 drives the entire structure to rise and fall in the vertical direction, completing the sealing and detachment of the funnel groove 521 from the filter paper. Furthermore, it can switch between the filtration position and the cleaning position. When released, the gripper drive device 5222 controls the gripper assembly 5223 to open, so that the funnel groove 521 is stably placed in the cleaning position.

[0072] Through the above settings, the drive function is integrated through modular combination. The vertical linear module 5221 provides precise lifting and positioning, and the gripper drive device 5222 ensures that the clamping force is controllable, avoiding tilting or falling off of the funnel groove 521 caused by manual operation.

[0073] Please continue to refer to Figure 15 and Figure 16 Furthermore, the vertical drive assembly 522 may also include a horizontal linear module 5224 to cooperate with the cleaning position.

[0074] Furthermore, a protective pad (not shown in the figure) may be provided on the opposite inner sidewall of the gripper assembly 5223.

[0075] In this application, when the gripper assembly 5223 performs the gripping action, the protective pad directly contacts the surface of the object being gripped (such as the funnel groove 521) along with the inner wall of the gripper, and the flexible gripping of the target object is achieved through the closing action of the gripper.

[0076] With the above settings, the protective pad can effectively buffer the impact force during the clamping process, avoid the surface of the clamped object from being indented or damaged due to rigid contact, and at the same time increase the friction between the gripper and the object, thereby improving the clamping stability.

[0077] Please refer to Figures 18 to 24Furthermore, the system also includes a filter paper gripping and releasing mechanism 80, which comprises: a filter paper tray 81 for pre-storing filter paper; a gripping mechanism 82 driven by a multi-axis robotic arm 12, the gripping mechanism 82 including a gripping base plate 83 connected to the multi-axis robotic arm 12 and a plurality of gripping needles 84 vertically fixed downward on the gripping base plate 83, the plurality of gripping needles 84 being used to pierce the non-working area of ​​the filter paper to achieve gripping; and a ejection mechanism 90 disposed on the gripping mechanism 82, the ejection mechanism 90 including an ejection member 91 movable along the axial direction of the gripping needles 84, the ejection member 91 being used to push the filter paper downward to detach it. A plurality of channels 811 are formed on the filter paper tray 81 at positions located in the non-working area of ​​the filter paper, and the plurality of channels 811 correspond one-to-one with the positions of the gripping needles 84 when gripping the filter paper.

[0078] In practical use, the filter paper gripping and releasing mechanism 80 according to an embodiment of the present invention first moves the gripping mechanism 82 above the filter paper tray 81 using a multi-axis robotic arm 12 (e.g., a robotic arm). Then, the robot controls the gripping mechanism 82 to descend vertically. During the descent, the tips of multiple gripping needles 84 are precisely aligned with the corresponding holes 811 on the filter paper tray 81, piercing the edge portion of the filter paper placed on the tray 81 and penetrating the holes 811 (e.g., ...). Figure 24 (As shown). Because the needle tip diameter of the gripping needle 84 is small and the puncture site is a non-functional area where the filter paper will be subsequently compressed, it will not affect the filtration function of the filter paper and there is no risk of sample contamination. At this time, the filter paper is fixed by the needle tips of multiple gripping needles 84, thus being reliably gripped and removed from the filter paper tray 81. The multi-axis robotic arm 12 continues to move the gripped filter paper directly above the filtration assembly (such as a Buchner funnel) on which it is applied. After the filter paper is placed in place, the ejection mechanism 90 on the gripping mechanism 82 is activated. The ejection component 91 moves downward, applying a uniform downward force, thereby pushing the filter paper downward along the needle tips of the gripping needles 84 until the filter paper is completely separated from all the needle tips and falls smoothly into the filtration position.

[0079] With the above-described configuration, the filter paper gripping and releasing mechanism 80 according to the present invention offers significant advantages over existing manual operations or failed automated attempts: 1) Reliable, non-destructive automated gripping is achieved through a mechanical interlocking method involving multiple needle tips piercing the edge region, completely solving the problems of suction cup failure and unreliable gripping by the clamps, ensuring a high gripping success rate; 2) The gripping point is strictly limited to the non-working area at the edge of the filter paper, completely avoiding contact with the central filter material (such as precious metal catalysts), absolutely preventing sample contamination, and ensuring experimental purity and data accuracy; 3) Independent... The ejection mechanism 90 smoothly pushes the filter paper away along the needle tip axis, avoiding the risk of filter paper displacement or sample scattering caused by slapping or bouncing, and achieving a gentle and controllable release process; 4) The core components are only the needle tip array and ejection component 91, which have a simple and compact structure, low cost and are easy to integrate into the end of a standard robot, becoming a key functional module of the fully automated vacuum filtration process; 5) As the core prerequisite for automated vacuum filtration, this mechanism realizes unattended continuous batch vacuum filtration, greatly improving experimental or production efficiency, while eliminating individual differences and errors caused by manual operation, ensuring the efficiency and consistency of the overall process.

[0080] Furthermore, the diameter of the gripping pin 84 can be 0.5 to 1.5 mm. Preferably, it is 1 mm.

[0081] In this application, a gripping needle 84 with an appropriate diameter is selected according to the filter paper material and thickness. During installation, it is ensured that the sharpness of the needle tip meets the piercing requirements. The gripping mechanism 82 is controlled by the multi-axis robotic arm 12 to press down vertically, so that the gripping needle 84 pierces the non-working area of ​​the filter paper with a preset force to complete the gripping.

[0082] With the above-described design, the gripping needle 84 with its appropriate diameter can reduce puncture damage to the filter paper while ensuring sufficient structural strength, thus preventing sample contamination or filter paper breakage. The reasonable diameter design ensures that the gripping needle 84 has good rigidity, preventing bending deformation during gripping and improving the stability and reliability of the gripping action.

[0083] Please refer to Figures 19 to 23 Furthermore, the gripping mechanism 82 may also include a connecting base 85, one end of which is connected to the drive end of the multi-axis robotic arm 12, and the other end is connected to the gripping substrate 83.

[0084] In this application, one end of the connecting base 85 is securely connected to the drive end of the multi-axis robotic arm 12 via a connecting plate or other structural components, while the other end is rigidly fixed to the gripping base plate 83, ensuring no loosening or gaps at the connection point. Thus, the connecting base 85, acting as a transitional connector between the robotic arm and the gripping base plate 83, can adapt to the specifications of different robotic arm models, improving the mechanism's versatility. The rigid connection design ensures the stability of force transmission, avoiding positioning deviations caused by relative displacement between components during gripping. Furthermore, the gripping mechanism 82 can also be constructed as a modular structure; the modular connection method facilitates later maintenance and replacement, reducing equipment repair costs.

[0085] Furthermore, a sensor (such as a photoelectric sensor, not shown in the figure) may be provided inside the filter paper tray 81 to detect whether the filter paper is placed in place.

[0086] In this application, a circular hole may be formed in the center of the filter paper tray 81, and a sensor may be installed inside the circular hole. In this application, the sensor is connected to the automated control system to ensure that the sensor detection area within the filter paper tray 81 is unobstructed. After the system starts, the sensor monitors the filter paper placement status in real time. When the filter paper is correctly placed in the designated position on the tray, the sensor sends a position signal to the control system, triggering the subsequent grasping process. If the system detects that the filter paper is not in place or is missing, it automatically issues a prompt and pauses the operation.

[0087] With the above settings, the sensor's real-time detection function can avoid grasping failures or equipment malfunctions caused by filter paper placement deviations, thereby improving the reliability of automated processes.

[0088] Please continue to refer to Figures 19 to 23 Furthermore, the ejector component 91 may include: a connecting plate 92, which is perpendicular to the gripping pin 84 and connected to the drive rod; and a plurality of ejector rods, which are parallel to the gripping pin 84 and fixedly connected to the connecting plate 92, the ejector rods being vertically and slidably disposed within the gripping base plate 83.

[0089] In this application, the connecting plate 92 is vertically fixed to the drive rod to ensure that the ejector rod and the gripping needle 84 remain parallel. During assembly, the ejector rod must pass through the sliding channel 811 of the gripping substrate 83 and be adjusted so that the bottom of the ejector rod is flush with or slightly higher than the tip of the gripping needle 84. When the drive device moves the connecting plate 92 downwards, the ejector rod moves synchronously along the sliding channel 811 of the gripping substrate 83, applying uniform downward pressure to the filter paper through several ejector rods to achieve release.

[0090] Through the above configuration, the rigid structure of the connecting plate 92 ensures that multiple ejector rods move synchronously, preventing filter paper deformation due to uneven force. The distributed layout of multiple ejector rods can accommodate filter paper of different sizes, expanding the applicability of the mechanism, while mechanical limiting prevents excessive ejection and equipment damage.

[0091] It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and although a logical order is shown in the flowchart, in some cases the steps shown or described may be executed in a different order than that shown here.

[0092] Obviously, those skilled in the art should understand that the various units or steps of this application described above can be implemented using general-purpose computing devices. They can be centralized on a single computing device or distributed across a network of multiple computing devices. Optionally, they can be implemented using computer-executable program code, thereby storing them in a storage device for execution by a computing device, or fabricating them separately as individual integrated circuit devices, or fabricating multiple devices or steps as a single integrated circuit device. Thus, this application is not limited to any particular combination of hardware and software.

[0093] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An automated preparation and testing device for platinum-carbon catalysts, characterized in that, include: The equipment operating platform, and the following components mounted on the equipment operating platform: A translational multi-axis robotic arm is configured to move along the work platform of the equipment and to perform collaborative work via the robotic arm. A feeding device, comprising a feeding mechanism and a weighing device, is used for the micro-weighing and addition of powder raw materials; A solution adding device is used to add a pre-set solvent to powdered raw materials; A stirring and heating device for closed-loop stirring of mixtures; An automatic filtration device is used to achieve solid-liquid separation and automated storage and retrieval of filter paper; Human-computer interaction device, used to enable interaction between humans and equipment; Post-processing and testing equipment is used to disperse the prepared catalyst and test its electrochemical performance. The translational multi-axis robotic arm, through the human-machine interface, can work in coordination with the feeding device, the solution adding device, the stirring and heating device, and the automatic filtration device, thereby enabling full-process operation from raw material preparation to performance testing.

2. The automated preparation and testing equipment according to claim 1, characterized in that, The translational multi-axis robotic arm includes: A linear motion module, disposed on the working platform of the device, includes a linear drive mechanism and a moving component driven by the linear drive mechanism; and A multi-axis robotic arm is mounted on the moving part, and the end of the multi-axis robotic arm is equipped with a quick-change interface; The multi-axis robotic arm, driven by the moving component, can work in coordination with the feeding device, the solution adding device, the stirring and heating device, and the automatic filtration device.

3. The automated preparation and testing equipment according to claim 1, characterized in that, The feeding device includes: Fixed base; A material barrel is provided on the fixed base and has a discharge port at the bottom. The material barrel is used to store the target powder. A drive mechanism is mounted on the fixed base and positioned directly above the material barrel; A rotating pressure bar is disposed inside the material barrel and connected to the driving mechanism. The rotating pressure bar is provided with helical blades. The driving mechanism is used to drive the rotating pressure bar to rotate along the axis. The diameter and pitch of the spiral blades are designed to gradually decrease from top to bottom along the axial direction of the rotating pressure rod, so as to form a compression channel with a larger top and a smaller bottom inside the material barrel. A radial gap for powder output is formed between the discharge port and the end of the rotating pressure rod.

4. The automated preparation and testing equipment according to claim 3, characterized in that, It also includes a modular quick-change device, which includes a torque transmission structure, the torque transmission structure comprising: A polygonal connecting sleeve is disposed at the drive end of the rotating pressure rod; A polygonal drive sleeve, which is sleeved and fixed on the drive shaft of the drive mechanism; and A locking structure is used to fix the polygonal connecting sleeve to the polygonal driving sleeve.

5. The automated preparation and testing equipment according to claim 4, characterized in that, The modular quick-change device further includes a radial positioning structure, which comprises: A receiving slide structure is fixed on the fixed base, and the receiving slide structure has a groove for horizontal sliding. The snap-fit ​​sliding groove structure is detachably connected to the receiving sliding groove structure, and a slot is formed inside the snap-fit ​​sliding groove structure to accommodate the receiving sliding groove structure. The outer periphery of the material bucket is formed with a guide flange, and the side wall of the receiving slide structure is formed with a guide groove that slides and engages with the guide flange. The snap-fit ​​slide structure is used to fix the material bucket in the receiving slide structure.

6. The automated preparation and testing equipment according to claim 1, characterized in that, The stirring and heating device includes: A support frame with a beaker placement area for holding beakers containing the solution to be processed; The main drive unit is mounted on the support frame; A sealing mechanism is disposed above the beaker placement position and connected to the main drive unit. The sealing mechanism includes an elastic clamping component for sealing the rim of the beaker. A stirring assembly is disposed above the beaker placement position and connected to the main drive unit. The stirring assembly includes a stirring paddle coaxially mounted at the center of the sealing mechanism, and the stirring paddle extends downward to penetrate into the interior of the beaker. The main drive unit is used to drive the sealing mechanism and the stirring assembly to move up and down, so that the elastic clamping assembly and the stirring paddle can connect and disconnect from the beaker.

7. The automated preparation and testing equipment according to claim 6, characterized in that, It also includes a heating unit, which is located below the beaker placement position for heating the placed beaker, wherein the heating unit integrates a sensor for real-time temperature monitoring.

8. The automated preparation and testing equipment according to claim 6, characterized in that, It also includes an automatic cleaning component located to the side of the beaker placement area, used to clean the stirring paddle after stirring is completed, wherein the automatic cleaning component includes: A bottom translation device is provided on the support frame, and a translation slide is provided on the bottom translation device; A cleaning tank is arranged side-by-side with the beaker placement area on the translation slide; The bottom translation device drives the cleaning tank to move back and forth horizontally to directly below the stirring paddle.

9. The automated preparation and testing equipment according to claim 1, characterized in that, The automatic filtration device includes: A support frame on which a filter platform is mounted; A filter paper tray seat is disposed on the filtration platform. A through filtration channel is opened in the filter paper tray seat along the vertical direction. The top surface of the filter paper tray seat is used to support the filter paper. A suction component is disposed within the filter channel. The top end of the suction component is sealed to the top surface of the filter paper tray seat. The suction component is provided with a negative pressure interface for connecting a negative pressure source, and the bottom of the suction component is provided with a connection port. A vacuum filtration receiving container, the top opening of which is detachably and sealed to the connection port; The funnel trough assembly includes a funnel trough and a vertical drive assembly, wherein the vertical drive assembly is disposed on the filter platform and its drive end is used to control the funnel trough to rise and fall directly above the filter paper tray seat; The vertical drive assembly is configured to: drive the funnel groove to descend to press the filter paper between the filter paper tray seat and the funnel groove to form a seal; and drive the funnel groove to rise to disengage from the filter paper tray seat.

10. The automated preparation and testing equipment according to any one of claims 9, characterized in that, It also includes a filter paper gripping and releasing mechanism, which includes: Filter paper tray, used to pre-store filter paper; A gripping mechanism, driven by a multi-axis robotic arm, includes a gripping base plate connected to the multi-axis robotic arm and a plurality of gripping pins vertically fixed downwards on the gripping base plate. The gripping pins are used to pierce the non-working area of ​​the filter paper to achieve gripping. A push-off mechanism is provided on the gripping mechanism, the push-off mechanism including a push-out component movable along the axial direction of the gripping needle, the push-out component being used to push the filter paper downward to detach it; The filter paper tray has several channels formed in the non-working area of ​​the filter paper, and each of the channels corresponds to a position when the gripping needle grips the filter paper.

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