Single filament performance testing sampling device and method for continuous alumina fibers

Abstract

This invention relates to the field of chemical materials technology and discloses a sampling device and method for testing the monofilament properties of continuous alumina fibers. The device and method include a support frame with a sampling component mounted on it, the sampling component including a mounting plate. To improve the accuracy of test data and production line efficiency, the sampling component, in conjunction with a moving module, drives a moving frame to move smoothly laterally via a motor, threaded rod, and straight rod, ensuring precise and uniform sampling position. A hydraulic device pushes a sliding box downwards, and a negative pressure device generates suction through connecting holes and negative pressure holes, uniformly adsorbing and fixing multiple fibers through conical holes on the suction plate to prevent fiber displacement during sampling. The spring rod and pressure block of the cutting module drive a spiked cutting blade to move synchronously, cutting part of the fiber under negative pressure adsorption, resulting in a continuous and stable sampling process.

Description

Technical Field

[0001] This invention relates to the field of chemical materials technology, specifically to a sampling device and method for testing the monofilament properties of continuous alumina fibers. Background Technology

[0002] Alumina continuous fibers possess excellent properties such as high strength, high modulus, low thermal conductivity, thermal shock resistance, high temperature resistance, chemical corrosion resistance, low deformation, and good resistivity.

[0003] High-temperature sintering is a crucial process in alumina fiber production. Among the key steps, single-filament sampling and analysis after high-temperature sintering is particularly important, as the properties of the single filaments directly reflect the quality of the finished fiber product. However, current sampling methods suffer from uncontrollable sample damage and low efficiency. Therefore, a sampling device is needed that can promptly sample and test dozens of fibers during production. This would shorten sampling time, ensure sampling standardization, improve testing accuracy, accelerate production efficiency, and ultimately provide timely and accurate guidance for production adjustments, reducing the generation of defective products.

[0004] However, the above-mentioned equipment has certain shortcomings in use. The accuracy of existing alumina continuous fiber monofilament performance testing is not high and the sampling efficiency is low. In view of this, we propose a sampling device and method for testing the monofilament performance of alumina continuous fibers. Summary of the Invention

[0005] The purpose of this invention is to provide a sampling device and method for testing the monofilament properties of continuous alumina fibers, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A sampling device for testing the monofilament properties of continuous alumina fibers includes a bracket, which is fixedly installed at the discharge end of a fast-firing furnace (an existing type of furnace), a support frame is fixedly installed on the bracket, a machine frame is fixedly installed on the support frame, a winding module is provided on the support frame, and a sampling component is provided on the bracket. The sampling component includes a mounting plate, which is fixedly installed on the support frame. The mounting plate is fixedly mounted on the mounting frame. A movable module is provided on the mounting frame. A movable frame is provided on the movable module. A hydraulic device is fixedly mounted on the movable frame. A round rod is fixedly mounted on the piston end of the hydraulic device. A sliding box is fixedly mounted on the round rod. A negative pressure device is fixedly installed on the slide box, a connection hole is opened on the slide box, a suction plate is fixedly installed on the slide box, a conical hole is opened on the suction plate, and a cutting module is provided on the slide box.

[0007] In a further embodiment, the mobile module includes a first mounting block, which is fixedly mounted on a mounting frame. A straight rod is fixedly mounted on the first mounting block. A second mounting block is fixedly mounted on the mounting frame. A motor is fixedly mounted on the second mounting block. A threaded rod is fixedly mounted on the output end of the motor. The mobile frame is disposed on the threaded rod and the straight rod.

[0008] In a further embodiment, the cutting module includes a square box, a square box is fixedly mounted on the sliding box, a spring rod is fixedly mounted inside the square box, a pressure block is fixedly mounted on the spring rod, a spike-shaped cutting blade is fixedly mounted on the pressure block, and a negative pressure hole is provided between the sliding box and the square box.

[0009] In a further embodiment, the negative pressure device is connected to the inside of the sliding box and the square box through a connection hole and a negative pressure hole. A limit box is fixedly installed at the bottom of the moving frame, and a positioning sensor is fixedly installed on the limit box. The sliding box slides inside the limit box, and a sample adhesive plate is installed on the mounting plate through a slot.

[0010] In a further embodiment, a wire guide module is provided on the support, the wire guide module includes a hinge block, the hinge block is fixedly installed on the frame, a wire guide roller is rotatably installed on the hinge block, a long plate is fixedly installed on the frame, a spring telescopic rod is fixedly installed on the long plate, a hinge frame is fixedly installed on the spring telescopic rod, and a pressing roller is rotatably installed on the hinge frame.

[0011] In a further embodiment, the guide roller and the pressing roller are provided with wire grooves, the guide roller and the pressing roller are arranged at the front and rear ends of the frame, a connecting frame is fixedly installed on the mounting plate, a rubber roller is rotatably installed on the connecting frame, and the connecting frame and the rubber roller are arranged at the front and rear ends of the mounting plate.

[0012] In a further embodiment, the mounting plate is provided with a wire support assembly, and a mounting box is fixedly installed at the bottom of the mounting plate. The mounting box is fixedly installed at the bottom of the mounting plate, and a cylinder device is fixedly installed at the bottom of the mounting box. A slide rod is fixedly installed at the piston end of the cylinder device, a limit ring is fixedly installed on the slide rod, a square plate is fixedly installed on the slide rod, a rubber plate is fixedly installed on the square plate, a limit rod is fixedly installed at the bottom of the square plate, a limit plate is fixedly installed at the bottom of the limit rod, and a helical spring is fixedly installed inside the square plate.

[0013] In a further embodiment, multiple sets of the limiting rod, limiting plate, and helical spring are provided. The limiting rod is located inside the helical spring, the limiting plate is located outside the mounting box, and the limiting ring is located inside the mounting box.

[0014] In a further embodiment, the rubber plate is positioned directly below the sliding box, the square plate and the rubber plate slide inside the mounting box, and the limiting rod penetrates the bottom of the mounting box.

[0015] The sampling method of the sampling device for testing the monofilament properties of continuous alumina fibers includes the following steps: S1. First, fix the bracket at the production line reference position behind the fast-burning furnace outlet, calibrate the horizontality and verticality of the bracket, and check the tightness of the connecting bolts between the support frame and the bracket and the frame; start the winding module for no-load test run to confirm that the traction speed and start-stop action are normal; push the sample adhesive plate horizontally into the slot until it is fully clamped and positioned. S2. Next, the multiple continuous alumina fibers output from the fast-burning furnace outlet are sequentially threaded into the guide fiber module. The fibers first pass around the guide roller on the hinge block, then through the pressing roller on the hinge frame, and fall into the wire guide groove to achieve fiber distribution. The spring telescopic rod maintains a constant extension length, so that the pressing roller adheres to the fiber surface with a set pressure to establish stable tension. The fibers continue to be conveyed, passing through the rubber rollers on the connecting frames at both ends of the mounting plate, and after secondary guidance, they enter the sampling operation area straight. S3. Start the fiber support assembly. The cylinder pushes the slide bar upward, which lifts the square plate and rubber plate to the optimal sampling height. The helical spring inside the square plate, together with the limit rod and the limit plate, forms an elastic buffer, allowing the rubber plate to flexibly support the fiber. The limit ring restricts the lifting stroke, ensuring a consistent lifting height and making the fiber flat and neatly arranged. S4. Start the moving module of the sampling component. The motor drives the threaded rod to rotate at a constant speed. Under the transmission of the threaded rod and the guidance of the limiting rod, the moving frame moves linearly in the horizontal direction. The positioning sensor collects the fiber position signal. After reaching the set position, the motor stops immediately, so that the sliding box is positioned directly above the fiber sampling area. S5. After the movement and positioning are completed, the hydraulic equipment is started, the piston extends and pushes the round rod downward, causing the slide box to slide vertically down along the inner wall of the limit box until the square plate is close to the set distance above the fiber; at the same time, the negative pressure equipment is started, and a negative pressure is formed in the inner cavity of the slide box through the connecting hole and the negative pressure hole. The airflow flows downward through the conical hole on the square plate, adsorbing and fixing multiple fibers to the lower surface of the square plate at the same time, keeping the fibers straight and without deviation. S6. While the fiber is being adsorbed and fixed, the cutting module performs a cutting action. The spring rod extends and pushes the pressure block downward, causing the spiked cutting blade to extend rapidly and cut the fiber simultaneously under negative pressure. After cutting, the negative pressure is maintained inside the mounting box, the spring rod retracts, and the pressure block and spiked cutting blade retract back into the mounting box, realizing the safe reset of the cutting mechanism. S7. Under continuous negative pressure, the cut fiber sample is positioned above the sample adhesive plate and adheres to its surface by the sliding box. Then, the piston of the hydraulic device retracts, driving the round rod and the sliding box to return to the upward reset. The negative pressure device stops running, the negative pressure is eliminated, and the fiber sample is completely retained on the sample adhesive plate. The single sampling is completed. S8. Manually pull out the sample plate carrying the fiber sample along the slot and send it to the testing process; the remaining waste fibers are uniformly wound up and recycled by the winding module. After loading a new sample plate, repeat steps S3–S8 to achieve continuous, efficient and non-destructive sampling of multiple alumina continuous fibers.

[0016] Compared with the prior art, the present invention provides a sampling device and method for testing the monofilament properties of continuous alumina fibers, which has the following beneficial effects: 1. The sampling device and method for testing the monofilament properties of continuous alumina fibers, in order to improve the authenticity of the test data and the efficiency of the production line, is equipped with a sampling component. This component, together with the moving module, is driven by a motor, threaded rod and straight rod to move the moving frame smoothly across, ensuring accurate and uniform sampling position. The hydraulic equipment pushes the sliding box downward, and the negative pressure equipment generates suction through the connecting hole and negative pressure hole. Multiple fibers are evenly adsorbed and fixed through the conical hole on the suction plate to prevent fiber displacement during sampling. The spring rod and pressure block of the cutting module drive the spiked cutting blade to move synchronously, cutting part of the fiber under negative pressure adsorption. The sampling process is continuous and stable.

[0017] 2. The sampling device and method for testing the monofilament properties of the continuous alumina fiber, in order to lay the foundation for high-precision and non-destructive sampling, is equipped with a guide module. This component, together with the guide roller on the hinge block and the pressing roller on the hinge frame, forms a flexible guide channel on the frame. The guide groove straightens the fibers to prevent fiber crossing and knotting. The spring telescopic rod provides adaptive elastic pressure, so that the pressing roller always adheres to the fiber with a constant small force, maintaining stable tension throughout the sampling process and preventing fiber loosening, shaking or excessive stretching damage. The connecting frame and rubber roller form auxiliary support in front of and behind the sampling area.

[0018] 3. The sampling device and method for testing the monofilament properties of the continuous alumina fiber, in order to improve the stability of the device operation and the sample quality, is equipped with a wire support assembly. This assembly, in conjunction with the cylinder device, drives the slide bar, square plate and rubber plate to move up and down. During sampling, it smoothly lifts the fiber to the optimal height, so that the monofilament fiber is flattened. Multiple sets of helical springs, limit rods and limit plates form an elastic buffer structure, so that the rubber plate supports the fiber with flexible force, avoiding the fiber deformation and breakage caused by rigid support. The limit ring and the mounting box work together to limit the lifting stroke, ensuring that the lifting height is consistent each time and improving the sampling repeatability. Attached Figure Description

[0019] Figure 1This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective; Figure 3 This is a schematic diagram of the guide wire module structure of the present invention; Figure 4 This is a schematic diagram of the sampling component structure of the present invention; Figure 5 This is a schematic diagram of the sampling component structure from another perspective of the present invention; Figure 6 This is a schematic diagram of the mounting plate structure of the present invention; Figure 7 This is a cross-sectional view of the mounting box structure of the present invention; Figure 8 This is a schematic diagram of a portion of the wire support assembly of the present invention; Figure 9 This is a schematic diagram of the mounting frame structure of the present invention; Figure 10 This is a schematic diagram of a portion of the sampling component of the present invention; Figure 11 This is a cross-sectional schematic diagram of the limiting box structure of the present invention; Figure 12 This is a schematic diagram of the sliding box structure of the present invention; Figure 13 This is a cross-sectional view of the square box structure of the present invention; Figure 14 This is a schematic diagram of the cutting module structure of the present invention; Figure 15 This is a cross-sectional view of the sliding box structure of the present invention; Figure 16 This is a flowchart of the method of the present invention.

[0020] Explanation of icon numbers: 1. Bracket; 2. Support frame; 3. Machine frame; 4. Rewinding module; 5. Sampling assembly; 51. Mounting plate; 52. Mounting bracket; 531. Mounting block No. 1; 532. Straight rod; 541. Mounting block No. 2; 542. Threaded rod; 543. Motor; 55. Moving frame; 56. Hydraulic equipment; 57. Limit box; 58. Positioning sensor; 59. Round rod; 510. Sliding box; 511. Negative pressure equipment; 512. Connecting hole; 513. Suction plate; 514. Conical hole; 515. Square box; 516. Spring rod; 517. Pressure block; 518. Spiked cutting disc; 519. Negative pressure hole; 520. Slot; 521. Sample adhesive plate; 6. Guide wire module; 61. Hinge block; 62. Guide wire roller; 63. Long plate; 64. Spring telescopic rod; 65. Hinge frame; 66. Pressing roller; 67. Wire guide groove; 68. Connecting frame; 69. Rubber roller; 7. Cable support assembly; 71. Mounting box; 72. Cylinder assembly; 73. Slide rod; 74. Limit ring; 75. Square plate; 76. Rubber plate; 77. Limit rod; 78. Limit plate; 79. Helical spring. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] In this application, the term "above" indicates the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. It is primarily used to better describe this application and its embodiments, and is not intended to limit the indicated device, element, or component to having a specific orientation, or to construct and operate in a specific orientation. Furthermore, the term "above" may also be used in certain circumstances to indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances.

[0023] Please see Figures 1-16 The present invention provides a technical solution: A sampling device for testing the monofilament properties of continuous alumina fibers includes a support 1, a support frame 2 fixedly mounted on the support 1, a frame 3 fixedly mounted on the support frame 2, and a winding module 4 provided on the support frame 2.

[0024] In one embodiment of the present invention, a sampling component 5 is provided on the support frame 1. The sampling component 5 includes a mounting plate 51, which is fixedly mounted on the support frame 2 and on the mounting frame 52. A movable module is provided on the mounting frame 52, and a movable frame 55 is provided on the movable module. A hydraulic device 56 is fixedly mounted on the movable frame 55. A round rod 59 is fixedly mounted on the piston end of the hydraulic device 56. A sliding box 510 is fixedly mounted on the round rod 59. A negative pressure device 511 is fixedly mounted on the sliding box 510. A connection hole 512 is provided on the sliding box 510. A suction plate 513 is fixedly mounted on the sliding box 510. A conical hole 514 is provided on the suction plate 513. A cutting module is provided on the sliding box 510. The movable module includes a first mounting block 531, which is fixedly mounted on the mounting frame 52. A straight rod 532 is fixedly mounted on the first mounting block 531. A cutting module is fixedly mounted on the mounting frame 52. Mounting block 541 is a second mounting block. A motor 543 is fixedly mounted on mounting block 541. A threaded rod 542 is fixedly mounted on the output end of motor 543. A moving frame 55 is set on the threaded rod 542 and the straight rod 532. The cutting module includes a square box 515. The square box 515 is fixedly mounted on the sliding box 510. A spring rod 516 is fixedly mounted inside the square box 515. A pressure block 517 is fixedly mounted on the spring rod 516. A spike is fixedly mounted on the pressure block 517. A shaped cutting disc 518 is provided. A negative pressure hole 519 is provided between the sliding box 510 and the square box 515. The negative pressure device 511 is connected to the inside of the sliding box 510 and the square box 515 through the connecting hole 512 and the negative pressure hole 519. A limit box 57 is fixedly installed at the bottom of the moving frame 55. A positioning sensor 58 is fixedly installed on the limit box 57. The sliding box 510 slides inside the limit box 57. A sample adhesive plate 521 is attached to the mounting plate 51 through the slot 520.

[0025] In this embodiment, in the moving module, the motor 543 drives the threaded rod 542 to rotate, which, in conjunction with the straight rod 532 for guidance, drives the moving frame 55 to move smoothly horizontally. The positioning sensor 58 provides real-time positioning to ensure accurate and uniform sampling positions. After moving into position, the hydraulic device 56 pushes the round rod 59 and the slide box 510 to move smoothly down along the limit box 57, approaching the fiber. The negative pressure device 511 is activated, forming a negative pressure inside the slide box 510 and the suction plate 513 through the connecting hole 512 and the negative pressure hole 519, which evenly disperses multiple fibers through the conical hole 514. The fiber is adsorbed and fixed flat to prevent it from shifting, tangling, or overlapping. While adsorbing, the spring rod 516 pushes the pressure block 517 and the spiked cutting blade 518 to cut the fiber synchronously under negative pressure, ensuring that the sampled cross-section is neat and undamaged. After cutting, a negative pressure is generated in the square box 515, so that the pressure block 517 and the spiked cutting blade 518 retract into the square box 515 and will not pop out. The sampled fiber is adsorbed and positioned above the sample adhesive plate 521. The sample adhesive plate 521 is installed by snapping on the slot 520 and can be quickly removed and sent directly for testing.

[0026] In one embodiment of the present invention, a wire guide module 6 is provided on the bracket 1. The wire guide module 6 includes a hinge block 61, which is fixedly installed on the frame 3. A wire guide roller 62 is rotatably installed on the hinge block 61. A long plate 63 is fixedly installed on the frame 3. A spring telescopic rod 64 is fixedly installed on the long plate 63. A hinge frame 65 is fixedly installed on the spring telescopic rod 64. A pressing roller 66 is rotatably installed on the hinge frame 65. A wire guide groove 67 is provided on the wire guide roller 62 and the pressing roller 66. The wire guide roller 62 and the pressing roller 66 are located at the front and rear ends of the frame 3. A connecting frame 68 is fixedly installed on the mounting plate 51. A rubber roller 69 is rotatably installed on the connecting frame 68. The connecting frame 68 and the rubber roller 69 are located at the front and rear ends of the mounting plate 51.

[0027] In this embodiment, the continuous alumina fibers output from the fast-firing furnace are transported through the flexible guide channel formed by the guide roller 62 and the pressing roller 66. The wire grooves 67 on the guide roller 62 and the pressing roller 66 straighten the multiple fibers, avoiding fiber crossing, knotting, and friction. The spring telescopic rod 64 provides adaptive elastic pressure, so that the pressing roller 66 always adheres to the fiber surface with a constant small downward pressure, maintaining stable fiber tension throughout the sampling process. This prevents fiber loosening and shaking, and avoids excessive stretching that could cause brittle fiber breakage. The connecting frame 68 and the rubber roller 69 before and after the mounting plate 51 form auxiliary support and guidance, further ensuring that the fibers are straight, stable, and without deviation in the sampling area.

[0028] In one embodiment of the present invention, a cable support assembly 7 is provided on the mounting plate 51, and a mounting box 71 is fixedly mounted on the bottom of the mounting plate 51. The mounting box 71 is fixedly mounted on the bottom of the mounting plate 51, and a cylinder device 72 is fixedly mounted on the bottom of the mounting box 71. A slide rod 73 is fixedly mounted on the piston end of the cylinder device 72, a limit ring 74 is fixedly mounted on the slide rod 73, a square plate 75 is fixedly mounted on the slide rod 73, a rubber plate 76 is fixedly mounted on the square plate 75, and a limit rod 7 is fixedly mounted on the bottom of the square plate 75. 7. A limiting plate 78 is fixedly installed at the bottom of the limiting rod 77. A helical spring 79 is fixedly installed inside the square plate 75. Multiple sets of limiting rods 77, limiting plates 78 and helical springs 79 are provided. The limiting rod 77 is located inside the helical spring 79. The limiting plate 78 is located outside the mounting box 71. The limiting ring 74 is located inside the mounting box 71. The rubber plate 76 is located directly below the sliding box 510. The square plate 75 and the rubber plate 76 slide inside the mounting box 71. The limiting rod 77 passes through the bottom of the mounting box 71.

[0029] In this embodiment, before sampling, the cylinder device 72 drives the slide bar 73, square plate 75, and rubber plate 76 to rise smoothly, lifting the fiber to the optimal sampling height, so that multiple monofilaments are fully flattened and neatly arranged. The multiple sets of helical springs 79 inside the square plate 75, together with the limiting rod 77 and the limiting plate 78, form an elastic buffer structure, so that the rubber plate 76 supports the fiber with flexible and uniform force, avoiding the deformation, bending or breakage of the fiber caused by rigid support. The limiting ring 74 cooperates with the inner wall of the mounting box 71 to precisely limit the lifting stroke, ensuring that the lifting height is consistent each time, improving the sampling repeatability and detection accuracy.

[0030] The signal interaction of each component adopts the PLC control protocol commonly used in industrial equipment, which is common knowledge to those skilled in the art and can be implemented without additional detailed description. The control logic and signal interaction method are existing technologies and will not be described in detail. The standard parts used in this application can all be purchased from the market. The specific connection methods of each part are all connected by conventional methods such as riveting and welding that are mature in the existing technology, and the standard parts all adopt conventional models in the existing technology.

[0031] It should be noted that the above electrical components are all existing technology products. Those skilled in the art should select, install, and complete the circuit debugging work according to the needs of use to ensure that each electrical appliance can work normally. The components are all general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. No specific restrictions are made here. The supporting structures of the hydraulic drive structure appearing in this application, such as hydraulic tanks and hydraulic pumps, are existing equipment. The circuit connection adopts the conventional connection method in the prior art, and will not be described in detail here.

[0032] The sampling method of the sampling device for testing the monofilament properties of continuous alumina fibers includes the following steps: S1. First, fix the bracket 1 as a whole at the production line reference position behind the fast-burning furnace outlet. Use a level to calibrate the horizontality and verticality of the bracket 1. Check the tightness of the connecting bolts between the support frame 2 and the bracket 1 and the frame 3. Start the winding module 4 for no-load test run to confirm that the traction speed and start-stop action are normal. Push the sample adhesive plate 521 horizontally along the slot 520 until it is fully clamped and positioned. S2. Next, the multiple continuous alumina fibers output from the fast-burning furnace outlet are sequentially threaded into the guide module 6. The fibers first pass around the guide roller 62 on the hinge block 61, and then pass through the pressing roller 66 on the hinge frame 65, so that the fibers fall completely into the wire guide groove 67 to achieve fiber separation and arrangement. The spring telescopic rod 64 maintains a constant extension length, so that the pressing roller 66 presses against the fiber surface with a set pressure to establish stable tension. The fibers continue to be conveyed forward, passing through the rubber rollers 69 on the connecting frames 68 at both ends of the mounting plate 51, and after secondary guidance, they enter the sampling operation area straight. S3. Start the fiber support assembly 7. The cylinder device 72 pushes the slide bar 73 to extend upward, driving the square plate 75 and the rubber plate 76 to rise. The fiber is lifted to the optimal sampling height. The spiral spring 79 inside the square plate 75, together with the limiting rod 77 and the limiting plate 78, forms an elastic buffer, so that the rubber plate 76 flexibly supports the fiber. The limiting ring 74 limits the lifting stroke to ensure that the lifting height is consistent each time, so that the fiber is fully flattened and neatly arranged. S4. Start the moving module of sampling component 5. Motor 543 drives threaded rod 542 to rotate at a constant speed. Under the transmission of threaded rod 542 and the guidance of straight rod 532, moving frame 55 moves linearly in the horizontal direction. Positioning sensor 58 collects the position signal of fiber. After reaching the set position, motor 543 stops immediately, so that sliding box 510 is positioned directly above the fiber sampling area. S5. After the movement and positioning are completed, the hydraulic device 56 is started, the piston extends and pushes the round rod 59 to move downward. The round rod 59 drives the slide box 510 to slide vertically down along the inner wall of the limit box 57 until the suction plate 513 approaches the set distance above the fiber. At the same time, the negative pressure device 511 is started, and a negative pressure environment is formed in the inner cavity of the slide box 510 through the connecting hole 512 and the negative pressure hole 519. The airflow flows downward through the conical hole 514 on the suction plate 513, adsorbing and fixing multiple fibers to the lower surface of the suction plate 513 at the same time, keeping the fibers straight and without deviation. S6. While the fiber is adsorbed and fixed, the cutting module performs a cutting action. The spring rod 516 extends and pushes the pressure block 517 to move downward, which drives the spiked cutting blade 518 to extend quickly and cut the fiber synchronously under negative pressure. After the cutting is completed, the negative pressure is maintained inside the square box 515, the spring rod 516 retracts, and the pressure block 517 and the spiked cutting blade 518 are completely retracted into the square box 515, realizing the safe reset of the cutting mechanism. S7. Under continuous negative pressure, the cut fiber sample remains in an adsorption state and is positioned directly above the sample adhesive plate 521 by the sliding box 510. The fiber sample naturally adheres to the surface of the sample adhesive plate 521. Subsequently, the piston of the hydraulic device 56 retracts, driving the round rod 59 and the sliding box 510 to reset upward along the limiting box 57. The negative pressure device 511 stops running, the negative pressure is eliminated, and the fiber sample is completely retained on the sample adhesive plate 521. The single sampling is completed. S8. Manually pull out the sample plate 521 carrying the fiber sample along the slot 520 and send it to the testing process without secondary processing; the remaining waste fibers are uniformly wound and recycled by the winding module 4. After sampling is completed, put the new sample plate 521 into the slot 520 and repeat steps S3-S8 to achieve continuous, efficient and non-destructive sampling of multiple alumina continuous fibers.

[0033] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A sampling device for testing the monofilament properties of continuous alumina fibers, comprising a support (1), a support frame (2) fixedly mounted on the support (1), a frame (3) fixedly mounted on the support frame (2), and a winding module (4) provided on the support frame (2), characterized in that: The bracket (1) is provided with a sampling component (5), the sampling component (5) includes a mounting plate (51), the mounting plate (51) is fixedly installed on the support frame (2); The mounting plate (51) is fixedly mounted on the mounting frame (52). A movable module is provided on the mounting frame (52). A movable frame (55) is provided on the movable module. A hydraulic device (56) is fixedly mounted on the movable frame (55). A round rod (59) is fixedly mounted on the piston end of the hydraulic device (56). A sliding box (510) is fixedly mounted on the round rod (59). A negative pressure device (511) is fixedly installed on the slide box (510). A connection hole (512) is opened on the slide box (510). A suction plate (513) is fixedly installed on the slide box (510). A conical hole (514) is opened on the suction plate (513). A cutting module is provided on the slide box (510).

2. The sampling device for testing the monofilament properties of continuous alumina fibers according to claim 1, characterized in that: The mobile module includes a first mounting block (531), which is fixedly mounted on a mounting frame (52). A straight rod (532) is fixedly mounted on the first mounting block (531). A second mounting block (541) is fixedly mounted on the mounting frame (52). A motor (543) is fixedly mounted on the second mounting block (541). A threaded rod (542) is fixedly mounted on the output end of the motor (543). The mobile frame (55) is disposed on the threaded rod (542) and the straight rod (532).

3. The sampling device for testing the monofilament properties of continuous alumina fibers according to claim 2, characterized in that: The cutting module includes a square box (515), on which the square box (515) is fixedly installed. A spring rod (516) is fixedly installed inside the square box (515), and a pressure block (517) is fixedly installed on the spring rod (516). A spike-shaped cutting blade (518) is fixedly installed on the pressure block (517). A negative pressure hole (519) is opened between the sliding box (510) and the square box (515).

4. The sampling device for testing the monofilament properties of continuous alumina fibers according to claim 3, characterized in that: The negative pressure device (511) is connected to the inside of the sliding box (510) and the square box (515) through the connecting hole (512) and the negative pressure hole (519). The bottom of the moving frame (55) is fixedly installed with a limit box (57). A positioning sensor (58) is fixedly installed on the limit box (57). The sliding box (510) slides inside the limit box (57). A sample adhesive plate (521) is installed on the mounting plate (51) through a slot (520).

5. The sampling device for testing the monofilament properties of continuous alumina fibers according to claim 4, characterized in that: The bracket (1) is provided with a wire guide module (6), the wire guide module (6) includes a hinge block (61), the hinge block (61) is fixedly installed on the frame (3), the wire guide roller (62) is rotatably installed on the hinge block (61), the frame (3) is fixedly installed with a long plate (63), the long plate (63) is fixedly installed with a spring telescopic rod (64), the spring telescopic rod (64) is fixedly installed with a hinge frame (65), and the hinge frame (65) is rotatably installed with a pressing roller (66).

6. The sampling device for testing the monofilament properties of continuous alumina fibers according to claim 5, characterized in that: The guide roller (62) and the pressing roller (66) are provided with wire grooves (67). The guide roller (62) and the pressing roller (66) are located at the front and rear ends of the frame (3). A connecting frame (68) is fixedly installed on the mounting plate (51). A rubber roller (69) is rotatably installed on the connecting frame (68). The connecting frame (68) and the rubber roller (69) are located at the front and rear ends of the mounting plate (51).

7. The sampling device for testing the monofilament properties of continuous alumina fibers according to claim 6, characterized in that: The mounting plate (51) is provided with a wire support assembly (7). The mounting box (71) is fixedly installed at the bottom of the mounting plate (51). The mounting box (71) is fixedly installed at the bottom of the mounting plate (51). A cylinder device (72) is fixedly installed at the bottom of the mounting box (71). A slide rod (73) is fixedly installed at the piston end of the cylinder device (72). A limit ring (74) is fixedly installed on the slide rod (73). A square plate (75) is fixedly installed on the slide rod (73). A rubber plate (76) is fixedly installed on the square plate (75). A limit rod (77) is fixedly installed at the bottom of the square plate (75). A limit plate (78) is fixedly installed at the bottom of the limit rod (77). A helical spring (79) is fixedly installed inside the square plate (75).

8. The sampling device for testing the monofilament properties of continuous alumina fibers according to claim 7, characterized in that: Multiple sets of the limiting rod (77), limiting plate (78) and helical spring (79) are provided. The limiting rod (77) is located inside the helical spring (79), the limiting plate (78) is located outside the mounting box (71), and the limiting ring (74) is located inside the mounting box (71).

9. The sampling device for testing the monofilament properties of continuous alumina fibers according to claim 8, characterized in that: The rubber plate (76) is located directly below the sliding box (510), the square plate (75) and the rubber plate (76) slide inside the mounting box (71), and the limiting rod (77) passes through the bottom of the mounting box (71).

10. The sampling method of the sampling device for testing the monofilament properties of continuous alumina fibers according to any one of claims 1-9, characterized in that, Includes the following steps: S1. Fix the bracket (1) behind the outlet of the fast-burning furnace, calibrate the horizontality and verticality, and check the connecting bolts of the support frame (2); start the winding module (4) for no-load test run, and push the sample sticking plate (521) into the slot (520) and tighten it. S2. The fiber output from the fast-burning furnace is threaded into the guide module (6), passes around the guide roller (62), passes through the pressing roller (66) and falls into the wire groove (67), and is guided into the sampling area by the rubber roller (69). S3, start the cable support assembly (7), the cylinder device (72) pushes the slide bar (73) to rise, which drives the square plate (75) and the rubber plate (76) to lift the fiber. The spiral spring (79) and the limit rod (77) work together to buffer, and the limit ring (74) limits the stroke. S4. Start the sampling component (5), the motor (543) drives the threaded rod (542) to rotate, the moving frame (55) moves under the guidance of the straight rod (532), the positioning sensor (58) triggers the motor (543) to stop, and the sliding box (510) is positioned. S5. The hydraulic equipment (56) is started, pushing the round rod (59) to drive the slide box (510) to slide down. The negative pressure equipment (511) is started, and the fiber is adsorbed and fixed on the lower surface of the suction plate (513) through the negative pressure hole (519) and the conical hole (514). S6. The spring rod (516) extends to push the pressure block (517), which drives the spiked cutting blade (518) to cut the fiber. After completion, the spring rod (516) retracts and the cutting mechanism resets. S7. The slide box (510) moves above the sample sticking plate (521), the hydraulic device (56) drives the slide box (510) to reset, the negative pressure device (511) stops, and the fiber sample is left on the sample sticking plate (521). S8. Extract the sample adhesive plate (521) and send it to the test. The winding module (4) recovers the waste filaments and loads in a new sample adhesive plate (521). Repeat S3–S8 to achieve continuous sampling.

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