Automatic sample preparation system for polymer composite material

Abstract

The invention discloses an automatic sample preparation system for a polymer composite material. The automatic sample preparation system comprises an operation platform; the manipulator is provided with a tail end mechanical connecting arm; the liquid weighing and sample adding mechanism is used for bearing the test tubes and weighing the test tubes; the magnetic stirring mechanism is used for bearing the test tube added with the magneton and driving the magneton in the test tube to rotate to realize stirring; the ultrasonic defoaming mechanism is used for performing ultrasonic defoaming on the stirred test tube; the curing mechanism is used for curing the sample in the mold tray; and the tool rack is used for bearing the magnetizer mechanism, the pipettor, the transfer clamping jaw and the tray clamping jaw. The manipulator can accurately control movement of all tools, manual intervention is reduced, the operation efficiency is improved, and the requirement for efficiently and automatically manufacturing samples is met. Various functions of liquid weighing and sample adding, magnetic stirring, ultrasonic defoaming, curing and the like are integrated, and full-process automation of sample preparation is realized.

Description

Technical Field

[0001] The invention relates to the technical field of polymer composite material sample preparation, in particular to an automatic polymer composite material sample preparation system. Background Art

[0002] Sample preparation is a critical step in the experimental research and production of polymer composites. Traditional sample preparation typically relies on manual operations, including steps such as liquid weighing, sample addition, stirring, defoaming, and curing. However, manual operations present numerous challenges. Firstly, they are inefficient and difficult to meet the demands of large-scale experiments and production. Secondly, manual operations often suffer from poor precision and consistency, which can easily lead to fluctuations in sample quality and compromise the accuracy and reliability of experimental results. Furthermore, manual operations can introduce contamination, affecting sample purity and performance.

[0003] In recent years, with the development of automation and robotics, some automated equipment has been introduced into the sample preparation process. However, existing equipment still has some shortcomings in practical application. For example, some equipment has a limited degree of automation and still requires manual intervention for some operations. Some equipment has a low level of functional integration and requires multiple independent devices to work together, which increases equipment cost and operational complexity. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides an automatic sample preparation system for polymer composite materials.

[0005] To achieve the above object, the technical solution adopted by the present invention is as follows: A polymer composite material automatic sample preparation system comprises: an operating platform; a manipulator, which is installed on the operating platform and has an end mechanical connecting arm; a liquid weighing and sample adding mechanism, which is used to carry test tubes and weigh the test tubes; a magnetic stirring mechanism, which is used to carry test tubes with magnets added and drive the magnets in the test tubes to rotate and achieve stirring; an ultrasonic debubbling mechanism, which is used to ultrasonically debubble the stirred test tubes; a curing mechanism, which is used to solidify the samples in a mold tray; a tool rack, which carries a magnet adding mechanism, a pipette, a transfer clamp, and a tray clamp; the magnet adding mechanism, the pipette, the transfer clamp, and the tray clamp can all be detachably connected to the end mechanical connecting arm; the magnet adding mechanism is used to attract and transfer the magnets into the test tubes; the pipette is used to absorb the liquid in the test tubes and output it into the mold tray; the transfer clamp is used to clamp the test tubes, and the tray clamp is used to clamp the mold tray.

[0006] Furthermore, the magnetizing mechanism includes: a base frame, provided with a connecting plate for detachable connection with the end mechanical connecting arm; a sliding part, which is installed on the base frame for lifting and sliding; a lifting drive mechanism, connected to the sliding part, for driving the sliding part to move up and down; an attraction head, which has an extended state and a retracted state, and is installed at the bottom of the sliding part so that it can move up and down with the sliding part to achieve switching between the extended state and the retracted state, and the attraction head in the extended state is higher than the attraction head in the retracted state; a blanking part, fixedly connected to the base frame, for separating the magnet taken by the attraction head from the attraction head during the movement of the attraction head from the extended state to the retracted state.

[0007] Furthermore, the bottom of the attraction head is provided with a first positioning groove and a second positioning groove in sequence from bottom to top, and the cross-sectional profile of the second positioning groove is smaller than that of the first positioning groove; a center hole is provided in the center of the blanking piece for the movement of the attraction head; a guide groove is provided on the peripheral wall of the bottom of the attraction head, and an inwardly protruding shift block is provided at the bottom of the center hole corresponding to the guide groove, and the shift block can pass through the guide groove and enter the first positioning groove, so that when the attraction head moves from an extended state to a retracted state, the shift block can move downward along the guide groove relative to the attraction head, thereby shifting the magnet embedded in the first positioning groove downward away from the first positioning groove.

[0008] Furthermore, the attraction head is elastically mounted on the bottom of the sliding part, and during the elastic movement, the attraction head is subjected to a downward elastic force; the sliding part includes a connecting shaft, and a sliding sleeve is provided on the connecting shaft; a sleeve is provided in the center of the sleeve to be slidably mounted on the connecting shaft, and an abutment ring is installed at the bottom of the connecting shaft, and the outer peripheral contour of the abutment ring is larger than the sleeve; the upper end of the attraction head is connected to the sleeve, and an elastic part is sandwiched between the attraction head and the abutment ring; the upper end of the attraction head is provided with a recessed limiting groove, and the elastic part is a compression spring, one end of the compression spring is embedded in the limiting groove and abuts against the bottom wall of the limiting groove, and the other end abuts against the abutment ring.

[0009] Furthermore, the curing mechanism includes a heating and curing device; the device includes: a base, installed on an operating platform; a furnace body, fixedly installed above the base, and provided with a furnace cavity with an opening on one side; a heating component, installed in the furnace cavity; a supporting structure, provided in the furnace cavity, for supporting the mold tray; a heat insulation board, provided between the heating component and the supporting structure to prevent the heat radiation of the heating component from directly radiating to the mold tray on the supporting structure; a furnace door, movably installed on the base, having a closed state for closing the furnace cavity and an open state for opening the furnace cavity; a furnace door drive component, used to drive the furnace door to move to achieve switching between the closed state and the open state.

[0010] Furthermore, a first fan is installed in the furnace door, and the first fan is used to drive the air flow in the furnace cavity to improve temperature uniformity; the furnace door is provided with a fan blade cavity on the side facing the furnace cavity, and a motor cavity on the side facing away from the furnace cavity; the fan blade cavity and the motor cavity are connected through an axial hole; the first fan includes a motor installed in the motor cavity and a fan blade installed in the motor cavity, and the rotating shaft of the motor is passed through the axial hole and connected to the fan blade.

[0011] Furthermore, the ultrasonic defoaming mechanism includes an ultrasonic machine, a positioning frame, a water tank, and a water pump; the ultrasonic machine is provided with a accommodating cavity, the upper end of the accommodating cavity is open, the positioning frame is embedded in the accommodating cavity, and the positioning frame is used to position and place the test tube; the input end of the water pump is connected to the water tank, and the output end is connected to an output pipe extending to the accommodating cavity to replenish water to the accommodating cavity.

[0012] Furthermore, a drying cylinder is installed on the operating platform, a carrying cylinder is installed in the drying cylinder, ventilation holes are provided on the peripheral wall and bottom wall of the carrying cylinder, absorbent cotton is installed on the peripheral wall and bottom wall of the carrying cylinder, an inner air duct is formed between the outer peripheral wall of the carrying cylinder and the inner wall of the drying cylinder, and a second fan for blowing air upwards is installed below the carrying cylinder of the drying cylinder.

[0013] Furthermore, the positioning frame includes a top positioning plate, an intermediate positioning plate and a height limiting plate; the top positioning plate, the intermediate positioning plate and the height limiting plate are arranged in sequence from top to bottom, the top positioning plate and the intermediate positioning plate are provided with positioning holes for inserting test tubes, the height limiting plate is provided with a positioning groove for embedding the bottom of the test tube, the top positioning plate is provided with a water supply hole for the output pipe to pass through, and a liquid level sensor is installed on the top positioning plate.

[0014] Furthermore, the curing mechanism includes a light curing device provided with a light curing chamber for performing light curing treatment on the sample on the mold tray in the light curing chamber.

[0015] The present invention has the following beneficial effects: The sample preparation process is fully automated using a robotic arm. The arm precisely controls the movement of each tool, reducing manual intervention and improving operational efficiency, meeting the need for efficient, automated sample preparation. The liquid weighing and sample addition mechanism accurately weighs and adds samples, ensuring the correct amount of liquid added. The magnetic stirring mechanism rotates a magnet within the test tube to achieve uniform mixing. The ultrasonic debubbling mechanism effectively removes bubbles from the liquid, improving sample purity and performance. The collaborative operation of these mechanisms significantly improves the accuracy and consistency of sample preparation, ensuring the reliability and reproducibility of experimental results. This system integrates multiple functions, including liquid weighing and sample addition, magnetic stirring, ultrasonic debubbling, and solidification. The tool rack carries the magnetic adding mechanism, pipette, transfer gripper, and tray gripper, enabling full automation of the sample preparation process. This multifunctional integrated design not only improves equipment utilization but also reduces equipment cost and operational complexity. The magnetic sub-mechanism, pipette, transfer gripper, and tray gripper are all detachably connected to the end-of-line mechanical arm, enabling the manipulator to quickly switch tools as needed, increasing the system's flexibility and adaptability to meet the needs of diverse experimental conditions and sample types. Automated operation reduces manual contact with samples, minimizing the risk of contamination and ensuring sample purity and performance. Through precise weighing, stirring, degassing, and solidification operations, this system produces high-quality samples.

[0016] In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings: Figure 1 is a schematic diagram of the external structure of an embodiment of the present invention; Figure 2 yes Figure 1 Schematic diagram of the internal structure; Figure 3 It is a structural diagram of the ultrasonic defoaming mechanism; Figure 4 It is a structural diagram of the positioning frame; Figure 5 It is a structural diagram of the magnetic stirring mechanism; Figure 6 It is a structural diagram of the solvent heating mechanism; Figure 7 It is a structural diagram of a liquid weighing and adding sample mechanism; Figure 8 1 is a schematic structural diagram of a light-curing device; Figure 9 It is a structural diagram of the magnet adding mechanism; Figure 10 It is a partial cross-sectional view of the suction head in the extended state; Figure 11 It is a partial cross-sectional view of the suction head in the retracted state; Figure 12 It is a schematic diagram of the local structure of the suction head; Figure 13 It is a schematic diagram of the partial structural decomposition state of the magneton mechanism; Figure 14 It is a schematic structural diagram of a heating and curing device in an open state; Figure 15 yes Figure 14 Schematic diagram of the decomposed state structure; Figure 16 is a cross-sectional view of the heating and curing device in a closed state; Figure 17 It is a schematic diagram of the internal structure of the drying cylinder; Figure 18 It is a cross-sectional view showing the drying cylinder without absorbent cotton.

[0018] Reference numerals: Operating platform 100, mold tray 101, protective cover 102, ventilation window 103, solvent heating mechanism 110, container placement hole 111, cover opening and closing mechanism 120, first placement rack 130, second placement rack 140, third placement rack 150, shelf 160; Manipulator 200, end mechanical connecting arm 210; Liquid weighing and adding mechanism 300, test tube placement seat 310, powder adding mechanism 320; Magnetic stirring mechanism 400, placement tank 410; Ultrasonic defoaming mechanism 500, ultrasonic machine 510, positioning frame 520, top positioning plate 521, middle positioning plate 522, height limiting plate 523, water supply hole 524, liquid level sensor 525, water tank 530, water pump 540, output pipe 541, drying cylinder 550, supporting cylinder 551, absorbent cotton 552, inner air duct 553, second fan 554; Heating and curing device 600, base 610, second slide rail 611, limiting structure 612, furnace body 620, furnace cavity 621, positioning column 622, heating assembly 630, heat dissipation plate 631, heating rod 632, positioning sleeve 633, connecting plate 634, supporting structure 640, heat insulation plate 650, isolation column 651, furnace door 660, fan blade cavity 661, motor cavity 662, shaft hole 663, second slider 664, furnace door drive assembly 670, rotation drive mechanism 671, screw rod 672, nut sleeve 673, motor 680, fan blade 681, light curing device 690, light curing cavity 691; Tool rack 700; Magnetic sub-mechanism 800, base frame 810, horizontal plate 811, vertical plate 812, guide sleeve 813, fixing ring 814, connecting plate 815, through-hole 816, first slide rail 817, sliding member 820, connecting shaft 821, abutting ring 822, connecting block 823, first slider 824, lifting drive mechanism 830, telescopic shaft 831, suction head 840, first positioning groove 841, second positioning groove 842, guide groove 843, limiting groove 844, blanking member 850, center hole 851, shifting block 852, sliding sleeve 860, sleeve hole 861, threaded sleeve 862, elastic member 870; Pipette 900, transfer clamp 910, tray clamp 920, viscous liquid precision sample addition mechanism 930. DETAILED DESCRIPTION

[0019] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0021] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0022] In addition, the descriptions of "first", "second", etc. in the present invention are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0023] Please refer to Figure 1 and Figure 2 In a preferred embodiment of the present invention, an automatic sample preparation system for polymer composite materials includes an operating platform 100, a manipulator 200, a liquid weighing and adding mechanism 300, a magnetic stirring mechanism 400, an ultrasonic defoaming mechanism 500, a curing mechanism and a tool rack 700.

[0024] The bottom of the operating platform 100 is supported by a support frame to reduce the risk of external dust contaminating the sample. Figure 1 As shown, a protective cover 102 is provided on the upper cover of the operating platform 100 , and a ventilation window 103 is provided on the top of the protective cover 102 .

[0025] The manipulator 200 is installed on the operating platform 100 and has an end mechanical connecting arm 210; the manipulator 200 can adopt a six-axis manipulator arm, so as to achieve flexible transfer and transportation of items.

[0026] The liquid weighing and adding mechanism 300 is used to carry the test tube and weigh the test tube.

[0027] The magnetic stirring mechanism 400 is used to carry the test tube with the magnet added thereto and drive the magnet inside the test tube to rotate to achieve stirring.

[0028] The ultrasonic debubbling mechanism 500 is used to perform ultrasonic debubbling on the stirred test tube.

[0029] The curing mechanism is used to cure the sample in the mold tray 101 .

[0030] The tool rack 700 carries a magnetizing sub-mechanism 800, a pipette 900, a transfer clamp 910, and a tray clamp 920. The magnetizing sub-mechanism 800, the pipette 900, the transfer clamp 910, and the tray clamp 920 are all detachably connected to the end mechanical connecting arm 210. It is understood that, to achieve automation, the components detachably connected to the end mechanical connecting arm 210 are generally equipped with built-in automatic drive components, such as motors, to enable the magnetizing sub-mechanism 800 to automatically add magnets, the pipette 900 to aspirate and eject liquids, the transfer clamp 910 to grip objects, and the tray clamp 920 to grip the mold tray 101. The magnetizing sub-mechanism 800 is used to attract and transfer magnets into a test tube; the pipette 900 is used to aspirate the liquid in the test tube and transfer it to the mold tray 101; the transfer jaws 910 are used to grip the test tube, although they can also grip other objects that can be gripped by the transfer jaws 910; and the tray jaws 920 are used to grip the mold tray 101. The end mechanical connecting arm 210 can be connected to one of the magnetizing sub-mechanism 800, the pipette 900, the transfer jaws 910, or the tray jaws 920, depending on the selection, to achieve different functions.

[0031] In a preferred embodiment of the present invention, an automatic sample preparation system for polymer composite materials is provided, which realizes the fully automated operation of the sample preparation process through the manipulator 200. The manipulator 200 can accurately control the movement of each tool, reduce manual intervention, improve operational efficiency, and meet the needs of efficient and automated sample preparation. The liquid weighing and adding mechanism 300 can accurately weigh and add samples to ensure that the amount of liquid added is accurate. Figure 7 As shown, the liquid weighing and adding mechanism 300 is provided with a test tube placement seat 310 for placing the test tube. Figure 5As shown, the magnetic stirring mechanism 400 is provided with a placement slot 410 for the test tube to be embedded. The magnetic stirring mechanism 400 achieves stirring by driving the magnet in the test tube to rotate, ensuring uniform stirring. The ultrasonic debubbling mechanism 500 can effectively remove bubbles in the liquid and improve the purity and performance of the sample. The collaborative work of these mechanisms significantly improves the accuracy and consistency of sample preparation, ensuring the reliability and repeatability of the experimental results. This system integrates multiple functions such as liquid weighing and adding, magnetic stirring, ultrasonic debubbling and solidification, and realizes the full process automation of sample preparation through the magnetic adding mechanism 800, pipette 900, transfer clamp 910 and tray clamp 920 carried by the tool rack 700. This multifunctional integrated design not only improves the utilization rate of the equipment, but also reduces equipment cost and operation complexity. The magnetic sub-mechanism 800, pipette 900, transfer clamp 910, and tray clamp 920 can all be detachably connected to the end mechanical connecting arm 210, allowing the manipulator 200 to quickly switch tools as needed, improving the flexibility and adaptability of the system and meeting the needs of different experimental conditions and sample types. Through automated operation, the opportunity for manual contact with samples is reduced, the risk of contamination is reduced, and the purity and performance of the samples are ensured. Through precise weighing, stirring, degassing, and solidification operations, the system can prepare high-quality samples. These high-quality samples not only improve the accuracy of experimental results.

[0032] like Figure 2 and Figure 6 As shown, the operating platform 100 can be installed with a solvent heating mechanism 110. The solvent heating mechanism 110 is provided with a container placement hole 111 for placing a container therein to heat the solvent in the container.

[0033] It is understandable that some mechanisms may be added to the operating platform 100 as needed. For example, if powder materials need to be added for sample preparation of some materials, a powder adding mechanism 320 may be installed on the operating platform 100 .

[0034] Reference Figures 9 to 13 In some embodiments of the present invention, the magnetizing sub-mechanism 800 includes a base frame 810, a sliding member 820, a lifting drive mechanism 830, an attraction head 840, and a blanking member 850.

[0035] The base frame 810 is provided with a connection plate 815 for removably connecting to the end mechanical connecting arm 210. The connection plate 815 is typically provided with a positioning post that is positioned and connected to the positioning hole of the end mechanical connecting arm 210. The connection plate 815 and the end mechanical connecting arm 210 can also be removably connected by means of a snap, a clamp, or other means. For example, the connection plate 815 may be provided with an electrically controllable snap. After the connection plate 815 and the end mechanical connecting arm 210 are docked, the electrically controlled snap extends and engages a slot in the end mechanical connecting arm 210, thereby connecting the two. When disassembly is required, the snap can be controlled to retract and exit the slot to separate the end mechanical connecting arm 210 from the connection plate 815. To achieve electronic control, the connection plate 815 is typically provided with an electrical interface, and the end mechanical connecting arm 210 is provided with a plug that can be inserted into the electrical interface, thereby providing power supply and electronic control. The slider 820 is mounted on the base frame 810 for lifting and sliding. The lifting drive mechanism 830 is connected to the slider 820 and is used to drive the slider 820 to move upward and downward. The suction head 840 has an extended state and a retracted state. The suction head 840 is mounted on the bottom of the slider 820 so that it can move up and down with the slider 820 to switch between the extended and retracted states. The suction head 840 in the extended state is higher than the suction head 840 in the retracted state. The blanking member 850 is fixedly connected to the base 810 and is used to separate the magnetic particles held by the suction head 840 from the suction head 840 during its movement from the extended state to the retracted state. The lifting drive mechanism 830 can precisely control the lifting and lowering movement of the slider 820, allowing the suction head 840 to switch between the extended and retracted states, thereby achieving automatic removal and placement of the magnetic particles. The suction head 840 eliminates the need for direct human contact during the magnetic particle removal and placement process, effectively avoiding magnetic particle contamination caused by hand contact. This reduces the risk of cross-contamination. The suction head 840 has an extended state and a retracted state, and the state switching is achieved through lifting and lowering. The flexibility of magnetic pickup and placement is improved, and precise control ensures the stability of the magnetic particles during the pickup and placement process, reducing the risk of magnetic particles falling or being damaged due to improper operation. The blanking member 850 allows the magnetic particles to be smoothly separated from the suction head 840 during the movement of the suction head 840 from the extended state to the retracted state, allowing the magnetic particles to be detached without the need for an additional drive mechanism. Both the pickup and placement of the magnetic particles only require a single lifting drive mechanism 830 to drive them, reducing the number of drive mechanisms used.

[0036] Reference Figures 9 to 13In a further embodiment of the present invention, a first positioning groove 841 and a second positioning groove 842 are provided at the bottom of the attraction head 840 from bottom to top. The cross-sectional profile of the second positioning groove 842 is smaller than that of the first positioning groove 841. The magnet is generally olive-shaped. When taking the magnet, the small head of the magnet will enter the small positioning groove, and the middle part will be stuck at the entrance of the large positioning groove, so that the magnet can be as vertical as possible so that it can be more easily placed in the test tube. The blanking member 850 is generally cylindrical in shape, with a center hole 851 at its center for movement of the suction head 840. A guide groove 843 is provided on the bottom peripheral wall of the suction head 840, and an inwardly protruding shifting block 852 is provided at the bottom of the center hole 851, corresponding to the guide groove 843. The shifting block 852 can pass through the guide groove 843 and enter the first positioning groove 841. When the suction head 840 moves from an extended state to a retracted state, the shifting block 852 can move downwardly relative to the suction head 840 along the guide groove 843, thereby shifting the magnet embedded in the first positioning groove 841 downwardly away from the first positioning groove 841. The end of the shifting block 852 extends into the first positioning groove 841. When the suction head 840 moves upward, the shifting block 852 abuts against the magnet in the first positioning groove 841, preventing the magnet from moving upward with the suction head 840. As a result, the magnet moves downward relative to the suction head 840, eventually separating from the suction head 840 and falling downward into the test tube. This allows for the removal of the magnetic particles without the need for additional drive mechanisms, reducing the need for coordinated control of multiple drive mechanisms. The suction head 840 can be made of a metal or alloy that is attractive to magnets, such as iron, cobalt, or nickel, to capture the magnetic particles. Multiple sets of guide slots 843 and shifting blocks 852 can be arranged in a circular pattern, further enhancing the stability and reliability of the magnetic particle release.

[0037] Reference Figures 9 to 13In a further embodiment of the present invention, the suction head 840 is elastically mounted on the bottom of the sliding member 820, and during the elastic movement, the suction head 840 is subjected to a downward elastic force; thus, when the suction head 840 moves downward to absorb the magnet, the suction head 840 can move elastically, avoiding rigid contact between the suction head and the magnet tray, which can act as a buffer and compensate for mechanical errors, effectively protecting the magnet and improving compatibility. The sliding member 820 includes a connecting shaft 821, on which a sliding sleeve 860 is slidably mounted; the sliding member 820 includes a connecting shaft 821, and a sleeve 860 is provided with a hole 861 in the center for slidingly mounting on the connecting shaft 821, thereby utilizing the connecting shaft 821 to serve as a guide for lifting and lowering movement. An abutment ring 822 is mounted on the bottom of the connecting shaft 821, and the outer circumference of the abutment ring 822 is larger than the sleeve hole, thereby preventing the sleeve 860 from detaching from the connecting shaft 821 and falling; the upper end of the suction head 840 is connected to the sleeve 860 so that it can be raised and lowered synchronously with the sleeve 860. An elastic member 870 is sandwiched between the suction head 840 and the abutment ring 822, which can provide a stable elastic force to the suction head 840. The abutment ring 822 not only limits the sliding sleeve 860 but also provides a contact position for the upper end of the elastic member 870. A recessed limiting groove 844 is provided at the upper end of the suction head 840. The elastic member 870 is a compression spring. One end of the compression spring is embedded in the limiting groove 844 and abuts against the bottom wall of the limiting groove 844, while the other end abuts against the abutment ring 822. By embedding one end of the compression spring in the limiting groove 844 and abutting against the bottom wall of the limiting groove 844, while the other end abuts against the abutment ring 822, stable elastic movement of the suction head 840 is achieved. The limiting groove 844 can achieve stable positioning of the compression spring and can also reduce the vertical dimension of the entire structure.

[0038] Reference Figure 10 、 Figure 11 In a further embodiment of the present invention, a downwardly extending threaded sleeve 862 is provided on the outer periphery of the sliding sleeve 860. The inner wall of the threaded sleeve 862 is threaded, and the upper end of the suction head 840 is threadedly connected to the threaded sleeve 862. The threaded connection design between the threaded sleeve 862 on the outer periphery of the sliding sleeve 860 and the upper end of the suction head 840 ensures a stable connection between the suction head 840 and the sliding sleeve 860 through the threaded connection.

[0039] Reference Figure 9In a further embodiment of the present invention, the base frame 810 includes a horizontal plate 811 and a vertical plate 812. The vertical plate 812 is vertically connected to the horizontal plate 811. The sliding member 820 is installed on the vertical plate 812 for lifting and sliding. The horizontal plate 811 is provided with a through hole 816 for the connecting shaft 821 to pass through. The vertical plate 812 is vertically connected to the horizontal plate 811, so that the lifting and sliding installation of the sliding member 820 is realized. The through hole 816 is passed through by the connecting shaft 821 to optimize the installation layout of the structure, reduce the size of the entire structure, and reduce interference with other structures when it moves. Specifically, a first slide rail 817 is provided on the vertical plate 812, and a connecting block 823 is connected to the upper end of the connecting shaft 821. The connecting block 823 is provided with a first slider 824 adapted to the first slide rail 817, thereby realizing lifting and sliding guidance. Specifically, the lifting drive mechanism 830 is a telescopic motor, and the telescopic shaft 831 of the telescopic motor is connected to the connecting block 823, thereby driving the sliding member 820 to lift and lower as a whole. Of course, the lifting drive mechanism 830 can also be other mechanisms with lifting drive functions, such as a motor and a screw nut pair. In order to improve the stability of the activity, the horizontal plate 811 is installed with a guide sleeve 813 for the lifting and sliding of the connecting shaft 821. This further improves the stability of the connecting shaft 821 during lifting and lowering. The sliding accuracy of the sliding member 820 is improved, and the guiding effect of the guide sleeve 813 is also used to ensure the stability of the sliding member 820 during the lifting process, further improving the reliability of the equipment. In order to facilitate the connection and fixation of the blanking member 850 to the horizontal plate 811, the bottom of the guide sleeve 813 is threadedly connected to a fixing ring 814, and the top of the blanking member 850 is threadedly connected to the fixing ring 814.

[0040] Reference Figures 14 to 16 In some embodiments of the present invention, the curing mechanism includes a heating and curing device 600, which includes a base 610, a furnace body 620, a heating component 630, a supporting structure 640, an insulation board 650, a furnace door 660 and a furnace door drive component 670.

[0041] The base 610 is installed on the operating platform 100. The furnace body 620 is fixedly installed above the base 610 and is provided with a furnace cavity 621 with an opening on one side to facilitate the placement of the mold tray 101 from the open side. The heating component 630 is installed in the furnace cavity 621 and is used to heat the temperature in the furnace cavity 621. The supporting structure 640 is provided in the furnace cavity 621 and is used to support the mold tray 101. The heat insulation plate 650 is provided between the heating component 630 and the supporting structure 640 to prevent the heat radiation of the heating component 630 from directly radiating to the mold tray 101 on the supporting structure 640; the furnace door 660 is movably installed on the base 610, and the furnace door 660 has a closed state for closing the furnace cavity 621 and an open state for opening the furnace cavity 621; the furnace door drive component 670 is used to drive the furnace door 660 to move to achieve switching between the closed state and the open state. The heat insulation board 650 is arranged between the heating component 630 and the supporting structure 640, which effectively prevents the heat radiation of the heating component 630 from directly radiating to the mold tray 101, prevents local overheating of the mold, ensures the uniform curing of the material, and improves the curing quality. The heating component 630 is installed in the furnace cavity 621 and can provide a stable heat source. The movable installation of the furnace door 660 is combined with the furnace door drive component 670 to realize the automatic closing and opening of the furnace door. It improves the convenience of operation, reduces manual intervention, and also improves the safety of the equipment through automated furnace door control, preventing operators from being burned in high temperature environments.

[0042] Reference Figures 14 to 16 In some embodiments of the present invention, a first fan is installed within furnace door 660. The first fan is used to drive airflow within furnace cavity 621 to improve temperature uniformity. A fan cavity 661 is provided on the side of furnace door 660 facing furnace cavity 621, and a motor cavity 662 is provided on the side facing away from furnace cavity 621. The fan cavity 661 and the motor cavity 662 are connected via an axial hole 663. The first fan includes a motor 680 installed in motor cavity 662 and fan blades 681 installed in motor cavity 662. The rotating shaft of motor 680 passes through axial hole 663 and is connected to fan blades 681. Connecting motor 680 and fan blades 681 via axial hole 663 enables compact installation and efficient operation of the first fan. The fan chamber 661 and the motor chamber 662 are separately arranged, so that the motor 680 is as far away from the heat in the furnace chamber 621 as possible, avoiding damage to the motor 680 when operating in a high-temperature environment. It is understood that the side walls shared by the fan chamber 661 and the motor chamber 662 can be made of thermal insulation material, which improves the stability of the first blower. The optimized structural layout also reduces space occupation and improves the overall integration of the equipment. To improve the heat preservation capacity, the side walls of the furnace chamber 621 can be provided with a thermal insulation structure to improve the heat preservation effect.

[0043] Reference Figures 14 to 16In a specific embodiment of the present invention, the heat insulation board 650 is arranged above the heating assembly 630, and the supporting structure 640 is a support column installed on the upper surface of the heat insulation board 650. There are multiple support columns distributed in a rectangular shape to achieve multi-position support of the mold tray 101 and improve the stability of the support. The vertical distribution arrangement reduces the occupied area. An isolation column 651 is sandwiched between the bottom of the heat insulation board 650 and the heating assembly 630. The isolation column 651 sandwiched between the bottom of the heat insulation board 650 and the heating assembly 630 further enhances the heat insulation effect, reduces direct heat conduction, and prevents the heat insulation board 650 from sticking to the surface of the heating assembly 630, thereby reducing the heat dissipation area of the heating assembly 630; the separation arrangement can effectively ensure the heat dissipation area of the heating assembly 630, so that the heat generated by it can heat the air in the furnace cavity 621 more quickly. It can be understood that the support columns, isolation columns 651, the heat insulation board 650 and the heating assembly 630 are all provided with corresponding holes for connection and fixation by fasteners. The connection of multiple components is achieved using shared fasteners, improving the assembly efficiency of the device. The fasteners also ensure stable connections between the components, enhancing the overall structural strength of the device. Specifically, the heating assembly 630 includes a heat sink 631 and a heating rod 632 inserted into the heat sink 631. The heat dissipation effect of the heat sink 631 increases the heat dissipation area, allowing heat to be quickly dissipated into the air within the oven cavity 621. The support columns, isolation columns 651, insulation plate 650, and heat sink 631 are provided with corresponding holes for fastener connection and fixation. Specifically, the sidewalls of the heat sink 631 are provided with a socket into which the heating rod 632 is inserted. A connecting plate 634 is provided at the end of the heating rod 632. The connecting plate 634 abuts against the sidewalls of the heat sink 631 and is provided with corresponding holes for fastener connection and fixation, thereby connecting the heating rod 632 to the heat sink 631. A wiring harness is also provided at the end of the heating rod 632 to extend out of the oven cavity 621 to obtain electrical energy. In order to achieve the positioning and installation of the heat sink 631, a positioning sleeve 633 is provided at the bottom of the heat sink 631, and a positioning column 622 is provided on the bottom wall of the furnace cavity 621. The positioning sleeve 633 is sleeved on the positioning column 622 to achieve the positioning and placement of the heat sink 631.

[0044] In a specific embodiment of the present invention, the furnace door drive assembly 670 includes a rotary drive mechanism 671, a screw 672, and a nut sleeve 673. The output shaft of the rotary drive mechanism 671 is connected to the screw 672 to drive its rotation. The nut sleeve 673 is sleeved on the screw 672 and fixedly connected to the furnace body 620. The rotary drive mechanism 671 drives the screw 672 to rotate, and the screw 672 and the nut sleeve 673 engage in a helical transmission, thereby driving the nut sleeve 673 and the furnace body 620 to move. A second slider 664 is provided at the bottom of the furnace door 660, and a second slide rail 611 is provided on the base 610. The second slider 664 is slidably mounted on the second slide rail 611. The guiding action of the second slide rail 611 ensures the stability of the furnace door 660 during operation. To ensure a compact structure, a gap is provided between the bottom of the furnace body 620 and the base 610 to accommodate the installation or movement of the second slide rail 611, the second slider 664, and the screw 672. The base 610 is provided with a limiting structure 612 for abutting against the side of the oven door 660 facing away from the oven cavity 621 to limit the movable travel of the oven door 660 , thereby preventing the oven door 660 from excessively moving and disengaging from the second slide rail 611 .

[0045] Reference Figure 3 In some embodiments of the present invention, the ultrasonic debubbling mechanism 500 includes an ultrasonic machine 510, a positioning frame 520, a water tank 530, and a water pump 540. The ultrasonic machine 510 has a receiving chamber with an opening at the top. The chamber is filled with liquid, and the ultrasonic machine 510 generates ultrasonic vibrations to ultrasonically debubble the test tubes entering the chamber. The positioning frame 520 is embedded in the chamber and is used to position the test tubes. The input end of the water pump 540 is connected to the water tank 530, and the output end is connected to an output pipe 541 extending into the chamber to replenish water in the chamber, thereby achieving automatic water replenishment and reducing manual intervention.

[0046] Reference Figure 4 In a specific embodiment of the present invention, the positioning frame 520 includes a top positioning plate 521, an intermediate positioning plate 522 and a height limiting plate 523; the top positioning plate 521, the intermediate positioning plate 522 and the height limiting plate 523 are arranged in sequence from top to bottom, and the top positioning plate 521 and the intermediate positioning plate 522 are provided with positioning holes for inserting test tubes, thereby achieving positioning and limiting of the upper end and the middle part of the test tube, thereby improving the stability of the test tube placement. The height limiting plate 523 is provided with a positioning groove for the bottom of the test tube to be embedded, further improving the stability of the test tube placement. The top positioning plate 521 is provided with a water replenishing hole 524 for the output pipe 541 to pass through, so as to facilitate the replenishment of water to the accommodating chamber. A liquid level sensor 525 is installed on the top positioning plate 521 to monitor the water level. When the water level does not meet the standard, feedback information can be provided to enable the water pump 540 to work and replenish water in time to ensure that the liquid level in the accommodating chamber is sufficient to ensure the defoaming effect.

[0047] Reference Figure 17 and Figure 18 In a specific embodiment of the present invention, a drying cylinder 550 is mounted on the operating platform 100. A carrier cylinder 551 is mounted within the drying cylinder 550. Ventilation holes are provided on the peripheral and bottom walls of the carrier cylinder 551. Water-absorbing cotton 552 is mounted on both the peripheral and bottom walls of the carrier cylinder 551 to effectively absorb moisture from the outer walls of the test tubes. The water-absorbing cotton 552 is generally cylindrical in shape with its opening facing upward. The upper edge of the water-absorbing cotton 552 is fixed to the outer shell, and the water-absorbing cotton 552 encloses an external air duct. An internal air duct 553 is formed between the outer peripheral wall of the carrier cylinder 551 and the inner wall of the drying cylinder 550. A second fan 554 is mounted below the carrier cylinder 551 in the drying cylinder 550, blowing air upward through the internal air duct 553. The second fan 554 blows air upwards. The air blown out by the second fan 554 can dry the peripheral wall of the absorbent cotton through the inner air duct and then blow out through the outer air duct. The air blown out by the fan can also directly dry the bottom of the absorbent cotton, thereby achieving rapid and comprehensive drying.

[0048] Reference Figure 2 and Figure 8 In some embodiments of the present invention, the curing mechanism includes a light curing device 690 mounted on the operating platform 100. The light curing device 690 is provided with a light curing chamber 691 for light curing the sample on the mold tray 101 in the light curing chamber 691.

[0049] It is understandable that the operating platform 100 may be provided with a plurality of racks, such as Figure 2 As shown, the operating platform 100 is provided with a first placement rack 130, a second placement rack 140 and a third placement rack 150, which can be used to place consumables and tools as needed, and of course can also be used as temporary storage racks for transit.

[0050] The following describes the workflow of an embodiment of this system: Loading: AGV or manual labor places the materials required for the experiment on shelf 160 according to the material category.

[0051] Powder adding: The end mechanical connecting arm 210 cooperates with the transfer gripper 910 to take the target powder barrel from the shelf 160 to the powder adding mechanism 320, take the test tube to the powder adding mechanism 320, perform the powder adding operation, and the powder adding mechanism 320 automatically adds samples. The powder adding mechanism 320 contains a weighing scale (the test tube is placed on the scale), and the weighing scale provides real-time feedback of data until the addition is completed.

[0052] Liquid Addition: The end mechanical connecting arm 210 takes the powdered test tube to the test tube placement seat 310 on the liquid weighing and loading mechanism 300. It then takes a pipette tip from the shelf and places it in the tip cache. It also takes a piston syringe from the shelf and places it in the piston cache. It then takes a solvent bottle to the lid opening and closing mechanism 120 for opening. The end mechanical connecting arm 210 switches to connect with the pipette 900, drives the pipette 900 to load the pipette tip, and the pipette transfers liquid from the solvent bottle to the test tube on the liquid weighing and loading mechanism 300. The pipette 900 can use a 5ml pipette; then, for fine liquid addition, the end mechanical connecting arm 210 is switched to connect with the viscous liquid precision adding mechanism 930. The viscous liquid precision adding mechanism 930 is a 1ml external piston pipette. The end mechanical connecting arm 210 drives the external piston pipette to load the piston syringe, and then operates the viscous liquid precision adding mechanism 930 to transfer liquid from the solvent bottle to the test tube on the liquid weighing adding mechanism 300 until the weighing of the liquid weighing adding mechanism 300 reaches the preset value. At this time, the entire liquid addition process is completed.

[0053] Magnetic stirring: The end mechanical connecting arm 210 is switched to connect with the transfer clamp 910. The end mechanical connecting arm 210 moves the test tube with liquid added to the opening and closing cover mechanism 120 to close the cover, and then moves to the magnetic stirring mechanism 400. The magnetic stirring mechanism 400 has a temperature control function, which can control the temperature of the test tube and start stirring. After the reaction is completed, the temperature is lowered and the stirring is stopped. The test tube is transported to the shelf to be stationary for cooling.

[0054] Ultrasonic defoaming: The terminal mechanical connecting arm 210 takes the cooled test tube from the shelf to the ultrasonic defoaming mechanism. After the defoaming is completed, it is moved to the drying cylinder to dry the outer wall of the test tube.

[0055] Injection molding: The end mechanical connecting arm 210 takes the test tube to the switch cover module to open the cover, the end mechanical connecting arm 210 switches to connect with the tray clamp 920, the tray clamp 920 takes the mold tray 101 and the target mold on the mold tray 101 to the filling position, the end mechanical connecting arm 210 switches to connect with the pipette, and pipettes and fills into the mold.

[0056] Curing: The end mechanical connecting arm 210 moves the injected mold to the curing mechanism (UV curing or high temperature curing), starts the curing process, and after curing is completed, takes out the mold and puts it back on the shelf.

[0057] Discharging: Place the materials to be discharged into the exchange bin, open the workstation door, and then AGV or manual labor will take away the materials.

[0058] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A polymer composite material automatic sample preparation system, characterized in that: include: Operation platform (100); A manipulator (200) is mounted on the operating platform (100) and has an end mechanical connection arm (210); A liquid weighing and adding mechanism (300) is used to carry and weigh the test tube; A magnetic stirring mechanism (400) is used to carry a test tube with magnets added thereto and drive the magnets in the test tube to rotate and achieve stirring; An ultrasonic debubbling mechanism (500) is used to ultrasonically debubble the stirred test tube; a curing mechanism for curing the sample in the mold tray (101); The tool rack (700) carries a magnetizing sub-mechanism (800), a pipette (900), a transfer clamp (910), and a tray clamp (920); the magnetizing sub-mechanism (800), the pipette (900), the transfer clamp (910), and the tray clamp (920) can all be detachably connected to the end mechanical connecting arm (210); the magnetizing sub-mechanism (800) is used to attract and transfer the magnet into a test tube; the pipette (900) is used to absorb the liquid in the test tube and output it to the mold tray (101); the transfer clamp (910) is used to clamp the test tube, and the tray clamp (920) is used to clamp the mold tray (101).

2. The automatic sample preparation system for polymer composite materials according to claim 1, characterized in that: The magnetizing sub-mechanism (800) comprises: A base frame (810) is provided with a connection plate (815) for detachably connecting to the end mechanical connection arm (210); A sliding member (820) is mounted on the base frame (810) in a lifting and sliding manner; A lifting drive mechanism (830) is connected to the sliding member (820) and is used to drive the sliding member (820) to move upward and downward; The suction head (840) has an extended state and a retracted state, and is mounted on the bottom of the sliding member (820) so as to be movable along with the sliding member (820) so as to switch between the extended state and the retracted state. The suction head (840) in the extended state is higher than the suction head (840) in the retracted state. The blanking piece (850) is fixedly connected to the base frame (810) and is used to separate the magnets taken by the attraction head (840) from the attraction head (840) when the attraction head (840) moves from the extended state to the retracted state.

3. The automatic sample preparation system for polymer composite materials according to claim 2, characterized in that: The bottom of the attraction head (840) is provided with a first positioning groove (841) and a second positioning groove (842) in sequence from bottom to top, and the cross-sectional profile of the second positioning groove (842) is smaller than that of the first positioning groove (841); a center hole (851) is provided at the center of the blanking piece (850) for the movement of the attraction head (840); a guide groove (843) is provided on the peripheral wall of the bottom of the attraction head (840), and an inwardly protruding shift block (852) is provided at the bottom of the center hole (851) corresponding to the guide groove (843), and the shift block (852) can pass through the guide groove (843) and enter the first positioning groove (841), so that when the attraction head (840) moves from the extended state to the retracted state, the shift block (852) can move downward along the guide groove (843) relative to the attraction head (840), thereby shifting the magnet embedded in the first positioning groove (841) downward away from the first positioning groove (841).

4. The automatic sample preparation system for polymer composite materials according to claim 3, characterized in that: The suction head (840) is elastically mounted on the bottom of the sliding member (820), and during the elastic movement, the suction head (840) is subjected to a downward elastic force; the sliding member (820) includes a connecting shaft (821); a sliding sleeve (860) is provided on the connecting shaft (821); a sleeve hole (861) is provided at the center of the sliding sleeve (860) for slidingly mounting on the connecting shaft (821); and an abutment ring (822) is installed at the bottom of the connecting shaft (821). , the outer peripheral contour of the abutment ring (822) is larger than the sleeve hole; the upper end of the attraction head (840) is connected to the sliding sleeve (860), and an elastic member (870) is sandwiched between the attraction head (840) and the abutment ring (822); the upper end of the attraction head (840) is provided with a recessed limiting groove (844), and the elastic member (870) is a compression spring, one end of the compression spring is embedded in the limiting groove (844) and abuts against the bottom wall of the limiting groove (844), and the other end abuts against the abutment ring (822).

5. The automatic sample preparation system for polymer composite materials according to claim 1, characterized in that: The curing mechanism comprises a heating and curing device (600); the heating and curing device (600) comprises: A base (610) mounted on the operating platform (100); The furnace body (620) is fixedly mounted above the base (610) and is provided with a furnace cavity (621) with an opening on one side; A heating component (630) is installed in the furnace cavity (621); A bearing structure (640) is provided in the furnace cavity (621) and is used to bear the mold tray (101); A heat insulation plate (650) is provided between the heating component (630) and the supporting structure (640) to prevent heat radiation from the heating component (630) from directly radiating to the mold tray (101) on the supporting structure (640); The furnace door (660) is movably mounted on the base (610) and has a closed state for closing the furnace cavity (621) and an open state for opening the furnace cavity (621); The furnace door driving assembly (670) is used to drive the furnace door (660) to move so as to switch between a closed state and an open state.

6. The automatic sample preparation system for polymer composite materials according to claim 5, characterized in that: A first fan is installed in the furnace door (660), and the first fan is used to drive the air flow in the furnace cavity (621) to improve temperature uniformity; the furnace door (660) is provided with a fan blade cavity (661) on the side facing the furnace cavity (621), and a motor cavity (662) on the side facing away from the furnace cavity (621); the fan blade cavity (661) and the motor cavity (662) are connected through an axial hole (663); the first fan includes a motor (680) installed in the motor cavity (662) and a fan blade (681) installed in the motor cavity (662); the rotating shaft of the motor (680) is passed through the axial hole (663) and is connected to the fan blade (681).

7. The automatic sample preparation system for polymer composite materials according to claim 1, characterized in that: The ultrasonic defoaming mechanism (500) comprises an ultrasonic machine (510), a positioning frame (520), a water tank (530), and a water pump (540); the ultrasonic machine (510) is provided with a receiving cavity, the upper end of which is open, the positioning frame (520) is embedded in the receiving cavity, and the positioning frame (520) is used to position and place a test tube; the input end of the water pump (540) is in communication with the water tank (530), and the output end is connected to an output pipe (541) extending to the receiving cavity, so as to replenish water in the receiving cavity.

8. The automatic sample preparation system for polymer composite materials according to claim 7, characterized in that: A drying cylinder (550) is installed on the operating platform (100), a carrying cylinder (551) is installed in the drying cylinder (550), ventilation holes are provided on the peripheral wall and bottom wall of the carrying cylinder (551), absorbent cotton (552) is installed on the peripheral wall and bottom wall of the carrying cylinder (551), an inner air duct (553) is formed between the outer peripheral wall of the carrying cylinder (551) and the inner wall of the drying cylinder (550), and a second fan (554) for blowing air upwards is installed below the carrying cylinder (551) of the drying cylinder (550).

9. The automatic sample preparation system for polymer composite materials according to claim 7, characterized in that: The positioning frame (520) includes a top positioning plate (521), an intermediate positioning plate (522) and a height limiting plate (523); the top positioning plate (521), the intermediate positioning plate (522) and the height limiting plate (523) are sequentially arranged at intervals from top to bottom, the top positioning plate (521) and the intermediate positioning plate (522) are provided with positioning holes for inserting test tubes, the height limiting plate (523) is provided with a positioning groove for embedding the bottom of the test tube, the top positioning plate (521) is provided with a water supply hole (524) for the output tube (541) to pass through, and a liquid level sensor (525) is installed on the top positioning plate (521).

10. The automatic sample preparation system for polymer composite materials according to claim 1, characterized in that: The curing mechanism comprises a light curing device (690) provided with a light curing chamber (691) for performing a light curing process on a sample on a mold tray (101) in the light curing chamber (691).

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