Evaluation device for fiber interlacing degree
By designing a fiber interlacing degree evaluation device, the interlacing degree is automatically calculated by utilizing the movement path and displacement of the probe in the fiber filament, thus solving the problem of accuracy in fiber interlacing degree detection and realizing the quantitative evaluation of fiber spreading performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 中复神鹰碳纤维连云港有限公司
- Filing Date
- 2025-05-28
- Publication Date
- 2026-05-19
AI Technical Summary
Existing technologies make it difficult to accurately quantify the interlacing degree of fibers, which affects the fiber spreading performance and leads to inconvenient testing and large errors.
A fiber interlacing degree evaluation device was designed, including a frame, a tensioning component, a probe, a detection device, and a controller. The interlacing degree is automatically calculated by the movement path and displacement of the probe in the fiber, avoiding manual operation and improving detection accuracy.
It enables automated, rapid, and accurate detection of fiber interlacing degree, simplifies the operation process, and improves the accuracy and efficiency of detection.
Smart Images
Figure CN224263205U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of detection technology, and in particular to an evaluation device for fiber interlacing degree. Background Technology
[0002] As the requirements for fiber prepregs become increasingly stringent, laminates made using low-basis-weight fiber prepregs exhibit stronger resistance to crack initiation and propagation, resulting in improved overall mechanical properties. In the preparation of low-basis-weight prepregs, the fiber spreading performance is particularly important, and the degree of fiber interlacing affects its spreading effect.
[0003] Fiber interlacing degree refers to the degree of interweaving and connection between individual fibers in a fiber bundle. The higher the fiber interlacing degree, the more network connection points between fibers, and the worse the fiber's yarn spreading performance. Therefore, it is increasingly important to quantitatively and accurately evaluate the fiber interlacing degree. Utility Model Content
[0004] To overcome the problems existing in related technologies, this application provides a device for evaluating fiber interlacing degree.
[0005] According to an embodiment of this disclosure, a device for evaluating fiber interlacing degree is provided, comprising:
[0006] frame;
[0007] The tensioning assembly includes multiple tensioning rollers, which are arranged along the height direction of the frame, and fiber filaments are wound around the multiple tensioning rollers.
[0008] A probe is disposed in the frame, and the probe is capable of moving in a direction perpendicular to the fiber and inserting into the fiber;
[0009] A first detection device is disposed on the frame, and the first detection device is used to detect the movement path and displacement of the probe along the height direction of the frame;
[0010] A controller is connected to both the probe and the first detection device. The controller is used to drive the probe to move along the height direction of the frame and in a direction perpendicular to the fiber. The controller is also used to receive detection information from the first detection device.
[0011] In some embodiments, the frame is provided with a track and a second detection device. The track extends along the height direction of the frame. The second detection device is disposed on the first detection device. The first detection device is disposed in the track. The first detection device and the second detection device are slidable along the track. The probe is disposed on the second detection device. The second detection device is used to detect the loading tension of the fiber when the probe is inserted into the fiber.
[0012] The controller is connected to the probe via the second detection device. The controller is used to drive the probe to protrude from the second detection device. The controller is also used to drive the first detection device and the second detection device to move along the extension direction of the track, so as to drive the probe to move.
[0013] In some embodiments, the frame is further provided with a tension detection roller and a third detection device, the fiber filament is wound on the tension detection roller; the third detection device is provided on the frame and connected to the tension detection roller, and is used to detect the tension of the fiber filament;
[0014] The third detection device is connected to both the controller and the first detection device. The third detection device is also used to send the motion path and displacement of the probe along the height direction of the frame detected by the first detection device to the controller.
[0015] In some embodiments, the tension detection roller is disposed between two adjacent tensioning rollers, and the distance between the tension detection roller and the frame is greater than the distance between the tensioning roller and the frame.
[0016] In some embodiments, the tensioning assembly includes a first tensioning wheel, a second tensioning wheel, a third tensioning wheel, and a fourth tensioning wheel;
[0017] Along the height direction of the frame, the first tensioning wheel and the fourth tensioning wheel are respectively disposed at both ends of the frame, and the second tensioning wheel and the third tensioning wheel are disposed in the middle of the frame. The radii of the first tensioning wheel and the fourth tensioning wheel are both larger than the radii of the second tensioning wheel and the third tensioning wheel. The tension detection roller is disposed between the second tensioning wheel and the third tensioning wheel.
[0018] In some embodiments, the fourth tensioning roller is provided with an adjustment device for adjusting the tension of the fiber filament.
[0019] In some embodiments, the controller is provided with a reset unit, which is electrically connected to the second detection device. The reset unit is used to drive the probe to retract to the second detection device. The reset unit is also used to drive the probe to protrude out of the second detection device and insert into the fiber filament, thereby driving the first detection device and the second detection device to move along the extension direction of the track, so as to drive the probe to move.
[0020] In some embodiments, when the tensioning component fixes the fiber filament, the distance between the fiber filament and the frame is 1-3 cm.
[0021] In some embodiments, the diameter of the probe is 1-3 mm.
[0022] In some embodiments, the probe is inserted into the fiber for half the length of the probe.
[0023] The technical solutions provided by the embodiments of this application may include the following beneficial effects: the fiber interlacing degree evaluation device in this application can detect the fiber interlacing degree in a simple and quick way, avoid the inconvenience caused by manual evaluation, realize automated detection, and improve the accuracy of detection.
[0024] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description
[0025] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.
[0026] Figure 1 This is an overall schematic diagram of a fiber interlacing degree evaluation device according to an exemplary embodiment.
[0027] Figure 2 This is illustrated according to an exemplary embodiment. Figure 1 A cross-sectional view of the device for evaluating the interlacing degree of medium fibers on section A-A'.
[0028] Figure label:
[0029] 1. Framework;
[0030] 2. Tensioning assembly; 21. First tensioning roller; 22. Second tensioning roller; 23. Third tensioning roller; 24. Fourth tensioning roller;
[0031] 3. Probe;
[0032] 4. First detection device;
[0033] 5. Second detection device;
[0034] 6. Tension detection roller;
[0035] 7. Third detection device;
[0036] 8. Controller; 81. Display unit; 82. Test unit; 83. Reset unit. Detailed Implementation
[0037] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.
[0038] As the requirements for fiber prepregs become increasingly stringent, laminates made using low-basis-weight fiber prepregs exhibit stronger resistance to crack initiation and propagation, resulting in improved overall mechanical properties. In the preparation of low-basis-weight prepregs, the fiber spreading performance is particularly important, and the degree of fiber interlacing affects its spreading effect.
[0039] Fiber interlacing degree refers to the degree of interweaving and connection between individual fibers in a fiber bundle. The higher the fiber interlacing degree, the more network connection points between fibers, and the worse the fiber's yarn spreading performance. Therefore, it is increasingly important to quantitatively and accurately evaluate the fiber interlacing degree.
[0040] To address the aforementioned technical problems, this application provides a fiber interlacing degree evaluation device, comprising a frame that can be placed on a horizontal tabletop for convenient testing. A tensioning assembly is provided on the frame, including multiple tensioning rollers. Fiber filaments are wound around these rollers, which are arranged along the height direction of the frame. The rollers fix the fiber filaments, making them parallel to the height direction of the frame. A probe is disposed on the frame and can move perpendicular to the fiber filaments to insert into them. The probe's movement direction is perpendicular to the fiber filament direction. A first detection device is disposed on the frame to detect the probe's movement path and displacement along the height direction of the frame. A controller is connected to both the probe and the first detection device, driving the probe to move along the height direction of the frame and perpendicular to the fiber filaments. The controller also receives detection information from the first detection device. During the test, the controller drives the probe to insert into the fiber and moves the probe along the height of the frame and perpendicular to the fiber. At this time, the first detection device detects the motion path and displacement of the probe during the motion process and sends the motion path and displacement of the probe to the controller. The controller records multiple motion paths and displacements of the probe, automatically calculates the degree of interlacing of the fiber, avoids the inconvenience caused by manual operation, realizes automated detection, and improves the accuracy of detection.
[0041] According to an exemplary embodiment of this application, such as Figure 1-2As shown, this embodiment provides a device for evaluating fiber interlacing degree. It includes a frame 1, which is a horizontally placed plate. The frame 1 serves as the supporting structure for the entire device, providing a stable mounting base and working platform for other components. The fibers can be fiber bundles, fiber strips, etc., and can be carbon fiber or glass fiber.
[0042] The tensioning assembly 2 includes multiple tensioning wheels, which are arranged along the height direction of the frame 1. The fiber filaments are wound around the multiple tensioning wheels. The multiple tensioning wheels on the frame work together to fix the fiber filaments, so that the fiber filaments are in a straight state. The straightened fiber filaments are parallel to the height direction of the frame 1, which makes it easy for the probe 3 to be inserted into the fiber filaments, ensuring the reliability and stability of fixing the fiber filaments.
[0043] The probe 3 is mounted on the frame 1 and can move in a direction perpendicular to the fiber and be inserted into the fiber. The tip of the probe 3 faces the direction of the fiber. When the fiber is fixed on the tensioning component 2 and is in a straightened state, the tip of the probe 3 can be smoothly inserted into the fiber and can move in a direction perpendicular to the fiber.
[0044] The first detection device 4 is disposed on the frame 1. The first detection device 4 is used to detect the movement path and displacement of the probe 3 along the height direction of the frame 1. The first detection device 4 can detect the movement path and displacement of the probe 3 along the height direction of the frame 1 when it inserts into the fiber filament, eliminating the need for human observation of the probe 3's movement path and manual measurement or calculation of the probe 3's movement distance, thus avoiding various influencing factors in manual testing. Specifically, the first detection device can be configured as a motion travel detection sensor. This sensor has high sensitivity and can automatically collect the movement path of the probe 3 along the height direction of the frame 1 when it inserts into the fiber filament, and can also automatically calculate the displacement of the probe 3, providing data support for calculating the interlacing degree of the fiber filament.
[0045] The controller 8 is connected to both the probe 3 and the first detection device 4. The controller 8 drives the probe 3 to move perpendicularly to the fiber filament along the height direction of the frame 1. The controller 8 also receives detection information from the first detection device 4. The controller 8 is the core control unit of the entire device. When the fiber filament is fixed by the tensioning assembly 2 and is in a straightened state, the controller 8 can drive the probe 3 to insert into the straightened fiber filament and drive the probe 3 to move downwards perpendicularly to the fiber filament along the height direction of the frame 1. At this time, the first detection device 4 can detect the movement path and displacement of the probe 3 along the height direction of the frame 1 within the fiber filament and send the movement path and displacement of the probe 3 to the controller 8. The controller 8 records the displacement of the probe 3 during multiple movements and automatically calculates the degree of interlacing of the fiber filaments.
[0046] In some embodiments, a track (not shown in the figure) and a second detection device 5 are provided on the frame 1. The track extends along the height direction of the frame 1. The second detection device 5 is disposed on the first detection device 4. The first detection device 4 is disposed in the track. The first detection device 4 and the second detection device 5 can slide along the track, which effectively restricts the movement of the first detection device 4 and the second detection device 5 at other positions on the frame and prevents unnecessary deviations. The probe 3 is disposed on the second detection device 5, thereby ensuring the accuracy of the movement path of the probe 3.
[0047] The second detection device 5 is used to detect the loading tension of the fiber filament when the probe 3 is inserted into it. After the multiple tensioning wheels in the tensioning assembly 2 fix the fiber filament, the fiber filament is in a taut state. At this time, the controller 8 drives the probe 3 to insert into the fiber filament. The second detection device 5 connected to the probe 3 detects the loading tension of the fiber filament. When the loading tension of the fiber filament is too low, the probe 3 cannot move normally in the fiber filament. When the loading tension of the fiber filament is too high, it is easy to damage the fiber filament. Therefore, when the probe 3 is inserted into the fiber filament, it is necessary to detect the loading tension of the fiber filament in real time to ensure that the probe 3 can move normally in the fiber filament. When the loading tension of the fiber filament is not greater than 0.5N, the probe 3 can move smoothly in the fiber filament without damaging the fiber filament due to excessive loading tension.
[0048] The second detection device 5 can be configured as a micro-pressure sensor. The micro-pressure sensor has high sensitivity. When the probe 3 is inserted into the fiber, the micro-pressure sensor can accurately sense the loading tension when the probe 3 is inserted into the fiber. Based on the magnitude of the loading tension, it ensures that the probe 3 can move smoothly in the fiber.
[0049] The controller 8 is connected to the probe 3 through the second detection device 5. When the controller 8 sends a control signal to the second detection device 5, the controller 8 drives the probe 3 to protrude from the second detection device 5 and insert into the fiber. The controller 8 drives the first detection device 4 and the second detection device 5 to move along the extension direction of the track, so as to drive the probe 3 to move and realize the movement of the probe 3 in the fiber.
[0050] In some embodiments, the frame 1 is further provided with a tension detection roller 6 and a third detection device 7. Fibers are wound around the tension detection roller 6, and the third detection device 7 is disposed on the frame and connected to the tension detection roller 6 for detecting the tension of the fiber filaments. Figure 2As shown, the fiber filament is wound around the tensioning assembly 2 and the tension detection roller 6. The tensioning assembly 2 and the tension detection roller 6 together fix the fiber filament, keeping it in a straight state. The third detection device 7, which is set on the frame, is connected to the tension detection roller 6 and can detect the tension of the fiber filament in the straight state. The third detection device 7 is connected to the controller 8 and the first detection device 4 respectively. When the probe 3 is inserted into the fiber filament and begins to move along the height direction of the frame 1, the first detection device 4 detects the movement path and displacement of the probe 3. The third detection device 7 sends the movement path and displacement of the probe 3 detected by the first detection device 4 to the controller 8.
[0051] The third detection device 7 can be set as a tension sensor. The tension sensor has high sensitivity and can accurately detect the tension of the fiber. The tension sensor can be fixedly set on the frame 1 and connected to the tension detection roller 6. It can accurately detect the tension of the fiber when it is fixed by the tensioning component 2 and the tension detection roller 6, ensuring that the fiber is in a straight state without being damaged due to excessive tension.
[0052] In some embodiments, the tension detection roller 6 is disposed between two adjacent tensioning rollers, and the distance between the tension detection roller 6 and the frame 1 is greater than the distance between the tensioning roller and the frame 1. Figure 2 As shown, the tension detection roller 6 is positioned between the second tensioning wheel 22 and the third tensioning wheel 23. The tension detection roller 6 is positioned at a height higher than the tensioning wheel in the tensioning assembly 2. By setting the tension detection roller 6, the fiber filament parallel to the frame 1 before the tension detection roller 6 is selected as the fiber filament to be tested. The degree of interlacing of the fiber filament to be tested is calculated to further ensure that the fiber filament fixed by the tensioning assembly 2 and the tension detection roller 6 is in a straight state. At the same time, the probe 3 stops moving before the first detection device 4 and the second detection device 5 slide on the track to the track position corresponding to the tension detection roller 6, thus completing the detection of the fiber filament to be tested.
[0053] In some embodiments, the frame 1 further includes a scale (not shown in the figure), the extension direction of which is parallel to the height direction of the frame 1. The scale can be set next to the track. The length of the fiber when it is in a straightened state can be read by the scale, and the distance the probe 3 moves from the start of movement to the stop can also be read. The distance is compared with the displacement of the probe 3 in the fiber detected by the first detection device 4 to ensure the accuracy of the detection by the first detection device 4.
[0054] In some embodiments, the tensioning assembly 2 includes a first tensioning roller 21, a second tensioning roller 22, a third tensioning roller 23, and a fourth tensioning roller 24, arranged along the height direction of the frame 1, such as... Figure 2As shown, the first tensioning wheel 21 and the fourth tensioning wheel 24 with larger radii are respectively set at both ends of the frame 1, while the second tensioning wheel 22 and the third tensioning wheel 23 with smaller radii are set in the middle of the frame 1. The second tensioning wheel 22 and the third tensioning wheel 23 with smaller radii can apply pressure to the fiber filament located in the middle of the frame while fixing the fiber filament, so as to ensure that when the probe 3 is inserted into the fiber filament, the second detection device 5 can detect the loading tension of the fiber in real time, and ensure that the probe 3 can move smoothly in the fiber filament.
[0055] like Figure 2 As shown, the tension detection roller 6 is located between the second tension roller 22 and the third tension roller 23. The first tension roller 21 is set on the frame 1 corresponding to a scale mark of 0mm on the track, and the second tension roller 22 is set on the frame 1 corresponding to a scale mark of 1000mm on the track. The fiber filament fixed by the first tension roller 21 and the second tension roller 22 is selected as the fiber filament to be tested. According to the scale, the length of the fiber filament to be tested is 1000mm, and the interlacing degree of the fiber filament to be tested is calculated.
[0056] In some embodiments, an adjustment device (not shown in the figure) is provided on the fourth tensioning wheel 24. The tension of the fiber filament is adjusted by the adjustment device. When the tensioning assembly 2 and the tension detection roller 6 fix the fiber filament together, the third detection device 7 is connected to the tension detection roller 6 to detect the tension of the fiber filament. At this time, the tension of the fiber filament is detected by adjusting the adjustment device on the fourth tensioning wheel 24 to ensure that the fiber filament is in a straight state. The adjustment device on the fourth tensioning wheel 24 can be a knob. The fourth tensioning wheel 24 is further tightened by the knob to achieve the purpose of adjusting the tension of the fiber filament. At this time, the tension value detected by the third detection device 7 is between 1-5N by tightening the knob.
[0057] In some embodiments, the controller 8 is provided with a reset unit 83, which is electrically connected to the second detection device 5. The reset unit 83 is used to drive the probe 3 to retract to the second detection device 5. The reset unit 83 is also used to drive the probe 3 to protrude from the second detection device 5 and insert into the fiber filament, driving the first detection device 4 and the second detection device 5 to move along the extension direction of the track, thereby driving the probe 3 to move. During the test, the controller 8 drives the probe 3 to insert into the fiber filament. When it encounters an intersection point, the probe 3 encounters resistance and stops moving. At this time, the reset unit 83 on the controller 8 is activated, driving the probe 3 to retract to the second detection device 5. The first detection device 4 and the second detection device 5 are then driven to move down 1 cm along the extension direction of the track, after which the probe 3 protrudes from the second detection device 5 and inserts into the fiber filament. The first detection device 4 and the second detection device 5 are driven to move along the extension direction of the track, thereby driving the probe 3 to move. When it encounters an intersection point, the probe 3 stops moving. The above operation is repeated again through the reset unit 83 until the probe 3 moves to the scale display of 1000 mm and stops moving.
[0058] In some embodiments, before testing, the reset unit 83 is also used to calibrate the second detection device 5. When the tensioning component 2 fixes the fiber filament, the second detection device 5 is used to detect the loading tension of the fiber filament when the probe 3 is inserted into the fiber filament. In order to ensure that the second detection device 5 can accurately know the loading tension of the fiber filament when it is inserted into the fiber filament, the second detection device 5 is reset by the reset unit 83 before testing, that is, a zeroing operation, to ensure that the loading tension of the fiber filament obtained by the second detection device 5 when it is inserted into the fiber filament is more accurate.
[0059] In some embodiments, before testing, the probe 3 on the second detection device 5 is moved to a position where the scale on the track is 0mm, and the movement path and displacement of the probe in the first detection device 4 are 0mm. This ensures that when the probe 3 is inserted into the fiber filament and stops at the intersection point after the test begins, the data detected by the first detection device 4 is accurate, thus improving the detection accuracy.
[0060] In some embodiments, the controller 8 is further provided with a display unit 81 and a testing unit 82. The display unit 81 is used to display the movement path and displacement of the probe 3 in the fiber filament. During the test, when the probe 3 encounters an intersection point in the fiber filament, it is blocked and stops. The first detection unit 4 sends the detected movement path and displacement of the probe 3 from the start of movement to the stop to the display unit 81 in the controller 8 through the third detection device 7 for display. The display unit 81 is designed to clearly show the path and displacement of the probe movement each time. When there is a difference between the movement path and displacement displayed by the display unit 81 and the distance the probe moves, the user can immediately detect the problem, stop the experiment, and repair the device. The display unit 81 can be a display screen, which displays the movement path and displacement of the probe 3.
[0061] Test unit 82 is used to perform fiber interlacing tests. For example... Figure 2 As shown, when the tensioning assembly 2 and the tension detection roller 6 fix the fiber filament, the test unit 82 on the controller 8 drives the probe 3 to protrude from the second detection device 5 and insert it into the fiber filament. This drives the first detection device 4 and the second detection device 5 to move along the extension direction of the track, simultaneously causing the probe 3 to begin moving within the fiber filament. When the probe 3 encounters an intersection point during its movement, it stops due to resistance, and the first detection device 4 and the second detection device 5 also stop moving on the track. By activating the device through the test unit 82, the automated detection of fiber interlacing degree is achieved, improving the accuracy of the detection.
[0062] In some embodiments, the tensioning component 2 fixes the fiber filament, and the fiber filament in the straightened state is parallel to the height direction of the frame 1. The distance between the fiber filament and the frame 1 is 1-3cm, so as to avoid the situation where the distance between the fiber filament and the frame 1 is too large and the probe 3 cannot be inserted into the fiber filament, or the distance between the fiber filament and the frame 1 is too small and the probe 3 cannot retract normally into the second detection device 5, thereby affecting the normal movement of the probe 3.
[0063] In some embodiments, the diameter of the probe 3 is 1-3 mm. When the tip of the probe 3 is inserted into the fiber, it will not damage the structure inside the fiber or cause the fiber to break.
[0064] In some embodiments, the length of the probe 3 inserted into the fiber filament is half the length of the probe 3.
[0065] The following examples illustrate the usage of the fiber interlacing degree evaluation device involved in this application:
[0066] S1. Select 5 carbon fiber samples to be tested.
[0067] S2. Fix the first carbon fiber sample to be tested on the first tensioning wheel, the second tensioning wheel, the tension detection roller, the third tensioning wheel, and the fourth tensioning wheel. The third detection device set on the frame is connected to the tension detection roller. Adjust the adjustment device on the fourth tensioning wheel to make the carbon fiber sample to be tested straight. The third detection device detects the fiber tension as 1.0 + 0.1 N. The position of the first tensioning wheel corresponds to the position of 0 mm on the scale on the track, and the position of the second tensioning wheel corresponds to the position of 1000 mm on the scale on the track. The probe 3 is retracted to the second detection device. At this time, the probe corresponds to the position of 0 mm on the scale, and the initial displacement of the probe is 0 mm.
[0068] S3. Start the reset unit on the controller to calibrate the second detection device.
[0069] S4. Start the test unit on the controller, drive the probe on the second detection device to protrude and insert into the carbon fiber sample parallel to it, drive the first and second detection devices to move along the extension direction of the track to drive the probe to move. When the probe first encounters the intersection point and stops, the first and second detection devices on the track also stop sliding. The third sensor on the track transmits the movement path of the probe detected by the first detection device and the displacement when encountering resistance to the controller, and displays the movement path and displacement of the probe on the display unit of the controller; start the reset unit, drive the probe to retract to the second detection device, drive the first and second detection devices to slide down 1cm along the extension direction of the track, drive the probe to protrude from the second detection device and insert into the carbon fiber sample, drive the first and second detection devices to move along the extension direction of the track to drive the probe to continue moving, when the probe encounters the intersection point and stops.
[0070] Repeat the above operation until the probe moves to 1000mm on the scale and stops moving. The controller records the displacements S1, S2, S3---Sn of the probe each time it starts moving and stops. Calculate the average value S of the displacements S1, S2, S3---Sn. Then the degree of interlacing within 1000mm of the carbon fiber sample to be tested can be expressed as N = 1000 / S.
[0071] Repeat the above test steps to test the interlacing degree of 5 carbon fiber samples. Calculate the average interlacing degree of the 5 carbon fiber samples to obtain the interlacing degree of the carbon fiber.
[0072] This application calculates the interlacing degree of each carbon fiber pattern with a length of 1000mm and takes the average of the interlacing degrees of 5 carbon fiber patterns as the interlacing degree of the carbon fiber. This method is simple, efficient and easy to operate, and can accurately and quantitatively characterize the degree of interlacing of carbon fibers. It can be used for industrial production, guide production, and thus control the degree of interlacing.
[0073] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.
[0074] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.
Claims
1. A device for evaluating fiber interlacing degree, characterized in that, include: frame; The tensioning assembly includes multiple tensioning rollers, which are arranged along the height direction of the frame, and fiber filaments are wound around the multiple tensioning rollers. A probe is disposed in the frame, and the probe is capable of moving in a direction perpendicular to the fiber and inserting into the fiber; A first detection device is disposed on the frame, and the first detection device is used to detect the movement path and displacement of the probe along the height direction of the frame; A controller is connected to both the probe and the first detection device. The controller is used to drive the probe to move along the height direction of the frame and in a direction perpendicular to the fiber. The controller is also used to receive detection information from the first detection device.
2. The fiber interlacing degree evaluation device according to claim 1, characterized in that, The frame is provided with a track and a second detection device. The track extends along the height direction of the frame. The second detection device is disposed on the first detection device. The first detection device is disposed in the track. The first detection device and the second detection device can slide along the track. The probe is disposed on the second detection device. The second detection device is used to detect the loading tension of the fiber when the probe is inserted into the fiber. The controller is connected to the probe via the second detection device. The controller is used to drive the probe to protrude from the second detection device. The controller is also used to drive the first detection device and the second detection device to move along the extension direction of the track, so as to drive the probe to move.
3. The fiber interlacing degree evaluation device according to claim 2, characterized in that, The frame is also provided with a tension detection roller and a third detection device, and the fiber filament is wound on the tension detection roller; the third detection device is provided on the frame and connected to the tension detection roller, and is used to detect the tension of the fiber filament; The third detection device is connected to both the controller and the first detection device. The third detection device is also used to send the motion path and displacement of the probe along the height direction of the frame detected by the first detection device to the controller.
4. The fiber interlacing degree evaluation device according to claim 3, characterized in that, The tension detection roller is positioned between two adjacent tensioning rollers, and the distance between the tension detection roller and the frame is greater than the distance between the tensioning roller and the frame.
5. The fiber interlacing degree evaluation device according to claim 4, characterized in that, The tensioning assembly includes a first tensioning wheel, a second tensioning wheel, a third tensioning wheel, and a fourth tensioning wheel; Along the height direction of the frame, the first tensioning wheel and the fourth tensioning wheel are respectively disposed at both ends of the frame, and the second tensioning wheel and the third tensioning wheel are disposed in the middle of the frame. The radii of the first tensioning wheel and the fourth tensioning wheel are both larger than the radii of the second tensioning wheel and the third tensioning wheel. The tension detection roller is disposed between the second tensioning wheel and the third tensioning wheel.
6. The fiber interlacing degree evaluation device according to claim 5, characterized in that, The fourth tensioning roller is equipped with an adjustment device for adjusting the tension of the fiber filament.
7. The fiber interlacing degree evaluation device according to claim 2, characterized in that, The controller is equipped with a reset unit, which is electrically connected to the second detection device. The reset unit is used to drive the probe to retract to the second detection device. The reset unit is also used to drive the probe to protrude out of the second detection device and insert into the fiber filament, thereby driving the first detection device and the second detection device to move along the extension direction of the track, so as to drive the probe to move.
8. The fiber interlacing degree evaluation device according to claim 1, characterized in that, When the tensioning component fixes the fiber filament, the distance between the fiber filament and the frame is 1-3 cm.
9. The fiber interlacing degree evaluation device according to claim 1, characterized in that, The diameter of the probe is 1-3 mm.
10. The fiber interlacing degree evaluation device according to claim 1, characterized in that, The probe is inserted into the fiber for half the length of the probe.