An apparatus and method for determining the fibrillation degree of lyocell staple fibers

Abstract

The present invention provides an apparatus and a method for measuring the fibrillation degree of Lyocell staple fibers, including: a body; a roller shaft rotatably connected to the body; a driving mechanism connected to the end of the roller shaft; a bracket connected to the body; an upper clamp clamped to the upper end of the Lyocell staple fiber; a lower clamp clamped to the lower end of the Lyocell staple fiber; a channel at the bottom of the operation window for collecting the dropped lower clamp; photoelectric switches distributed along the length direction of the channel; and a control unit electrically connected to the driving mechanism for recording the start-stop duration of the driving mechanism, recording the number of rotations of the roller shaft, and also electrically connected to each photoelectric switch for recording the number of times the lower clamp is triggered and controlling the driving mechanism to turn off. In this technical solution, the experimenter only needs to clamp the upper clamp and the lower clamp at both ends of the Lyocell staple fiber, fix the upper clamp to the bracket, and set the experimental parameters through the control unit, and then the control unit can automatically obtain the required test data by starting the driving mechanism.

Description

Technical Field

[0001] The present invention generally relates to the field of physical testing equipment, and particularly to an apparatus and method for determining the fibrillation degree of Lyocell staple fibers. Background Art

[0002] Lyocell fiber is one of the regenerated fibers. This fiber uses plant-derived wood pulp as raw material, is made into cellulose fiber by a solvent spinning method, and then becomes a textile through textile processes to enter the consumer market. Its products can be completely decomposed in the soil. The NMMO solvent used in production is non-toxic and pollution-free, and can be recycled. The entire fiber production process is green and environmentally friendly, and the solvent recovery rate can reach more than 99%. Therefore, Lyocell fiber is called the "green fiber of the 21st century".

[0003] The application number is: CN202110019436.5, which discloses a measuring device and method for the fibrillation degree of Lyocell fiber. It includes a frame, and a pressure roller is rotatably connected inside the frame. One end of the pressure roller is provided with a motor for driving the pressure roller to rotate. When measuring the fibrillation degree of Lyocell fiber, a white poplin cloth needs to be soaked in water, laid flat on the pressure roller, and then the test fiber is cut into 30 cm in length. One end is fixed on the frame, and the other end is loaded with 9.4 g. The fiber is pressed against the white silk cloth on the roller surface, the motor is started, and a stopwatch is used to record the time when the fiber breaks due to friction.

[0004] It makes the experimenter need to manually record the test data of each short fiber according to the stopwatch, and the degree of automation in the process is not high. Summary of the Invention

[0005] According to the present invention, in view of the problems existing in the prior art, a device for measuring the fibrillation degree of lyocell staple fibers is provided. The invention comprises: a machine body, one side of which is provided with an operation window; a roller shaft, which is horizontally located in the operation window, and whose two ends are rotatably connected to the machine body, and whose outer peripheral surface is fixed with a friction medium; a driving mechanism, which is located in the machine body and is mutually connected with the end of the roller shaft; a bracket, which is horizontally supported above the roller shaft and is mutually connected with the machine body; an upper clamp, which is clamped at the upper end of the lyocell staple fiber and fixed on the bracket; a lower clamp, which is clamped at the lower end of the lyocell staple fiber and makes the lyocell staple fiber stick to the surface of the friction medium; a channel, which is opened at the bottom of the operation window and is used to collect the dropped lower clamp; a plurality of photoelectric switches are provided and evenly distributed along the length direction of the channel, and the transmitting end of the switch points to the opposite side of the channel; a control unit, which is located in the machine body and is electrically connected to the driving mechanism, and is used to record the start and stop duration of the driving mechanism, and the number of rotations of the roller shaft, and is also electrically connected to each of the photoelectric switches, and is used to record the number of times the lower clamp is triggered and control the driving mechanism to be closed. With the above-mentioned technical features, the experimenter only needs to set the upper clamp and the lower clamp at the two ends of the lyocell staple fiber, fix the upper clamp and the bracket to each other, and set the experimental parameters through the control unit. Then, by starting the driving mechanism, the control unit can automatically obtain the required test data. Compared with the traditional manual recording, it not only saves manpower greatly, but also improves the measurement accuracy, reduces the test errors of manual recording, and greatly improves the final test efficiency by reducing the complicated manpower operations.

[0006] In some embodiments, the bracket is provided with a plurality of wedge-shaped grooves for clamping the upper clamp at intervals along the length direction of the bracket, and a clearance channel connected with the wedge-shaped groove for accommodating the lyocell staple fibers. Thus, the wedge-shaped groove clamps the upper clamp, and the wedge-shaped structure fits the upper clamp more closely, so that the force on the upper clamp is more stable. With the rotation of the roller shaft, a downward force is applied to the lyocell staple fibers, so that the upper clamp fits more closely with the inner wall of the wedge-shaped groove. The greater the force, the greater the force of the two clamping arms of the upper clamp toward the middle, thereby improving the stability of fixing the lyocell staple fibers.

[0007] In some embodiments, a plug hole is provided on the bottom wall of the wedge-shaped groove, and a limiter is inserted in the plug hole. The limiter is inserted in the gap of the upper clamp to limit the separation of the upper clamp from the wedge-shaped groove. Therefore, the detachable connection between the limiter and the plug hole will not hinder the fixation of the upper clamp and the bracket. Moreover, through the installation of the limiter, after the lyocell staple fibers are worn and broken, the limiter limits the separation of the upper clamp from the wedge-shaped groove, thereby reducing the separation of the upper clamp from the bracket, triggering the photoelectric switch, and thus affecting the accuracy of the final experimental detection.

[0008] In some embodiments, after the limiting member and the jack are inserted into each other, they do not come into contact with the upper clamp. Thus, as the force of the Lyocell staple fiber on the upper clamp increases, the upper clamp fits more closely to the inner wall of the wedge-shaped groove, thereby increasing the fixing stability of the upper clamp to the Lyocell staple fiber. Since the limiting member and the upper clamp do not contact each other, on the one hand, it restricts the mutual separation of the upper clamp and the wedge-shaped groove, and on the other hand, it also ensures the close fit of the upper clamp and the inner wall of the wedge-shaped groove, and does not hinder the deformation caused by the fit of the upper clamp and the inner wall of the wedge-shaped groove, thereby ensuring the stability of the force on the upper clamp.

[0009] In some embodiments, a plurality of partition plates are vertically arranged inside the channel, so that a plurality of grids with equal widths are formed inside the channel, and the photoelectric switch is fixed on one side of the grid. Thus, the stability of the lower clamp dropping and triggering the photoelectric switch is increased, and the accuracy of the final detection is improved.

[0010] In some embodiments, a guide rod is horizontally arranged above each partition plate, and one end of the guide rod is fixed on one side of the channel. Thus, the guide rod plays a limiting role in the swinging of the Lyocell staple fiber under force, thereby restricting the dropping direction of the lower clamp, ensuring the stability of the lower clamp triggering the photoelectric switch, and also facilitating the experimenter to judge and control the length of the Lyocell staple fiber, so as to avoid the situation that the distance between the lower clamp and the photoelectric switch is too far, thereby increasing the experimental error.

[0011] In some embodiments, there is a gap between the other end of the guide rod and the side wall of the channel. Thus, if the broken Lyocell staple fiber winds around the guide rod, the gap at one end also facilitates the disassembly of the Lyocell staple fiber, improving the disassembly efficiency.

[0012] In some embodiments, a ring plate is coaxially arranged at each end of the roller shaft, the ring plate is rotatably connected to the machine body, and the end of the bracket is fixed on the ring plates on both sides, and a rotation reading is marked on one side ring plate. Thus, through the rotation of the ring plate, not only can the posture of the bracket be controlled, so that the upper clamp fits more closely to the bottom wall of the wedge-shaped groove and the fixation is more stable; but also the fitting range of the Lyocell staple fiber and the outer peripheral surface of the roller shaft can be adjusted to meet the experimental requirement parameters.

[0013] In some embodiments, a display screen is further included, which is electrically connected to the control unit and is used to display the rotation speed of the driving mechanism, the number of rotations of the roller shaft, the number of times the photoelectric switch is triggered, and the time from the start of the driving mechanism to the triggering of the photoelectric switch each time. Thus, it is convenient for the experimenter to set experimental parameters, understand the experimental process, and make the data more intuitive and specific.

[0014] A method for measuring the fibrillation degree of Lyocell staple fiber includes the following steps:

[0015] Preparation: Soak the white silk cloth in water, spread it on the outer peripheral surface of the roller shaft, and fix it to the roller shaft;

[0016] Material selection: Select equal-length Lyocell staple fibers, and there are at least 25 Lyocell staple fibers. Ensure that after the upper end of the Lyocell staple fiber is fixed to the bracket, the lower end exceeds the guide rod and does not trigger the photoelectric switch;

[0017] Fixing the frame: Clamp the upper clamp and the lower clamp at both ends of the Lyocell staple fiber respectively. Clamp the upper clamp in the wedge-shaped groove of the bracket, and through the insertion of the limiting part into the jack, stably fix the upper clamp in the wedge-shaped groove of the bracket; The lower clamp falls naturally and is located on one side of a guide rod;

[0018] Positioning: Rotate the ring plate to drive the bracket to rotate and adjust the contact area between each Lyocell staple fiber and the white silk cloth;

[0019] Setting parameters: Set the rotation speed of the driving mechanism and the number of Lyocell staple fibers;

[0020] Starting and calculating: Start the driving mechanism, record the number of rotations of the roller shaft, the number of trigger times when the lower clamp drops and triggers the photoelectric switch, and the time used. When the number of drops of the lower clamp reaches the set number of Lyocell staple fibers, control the driving mechanism to stop, and analyze the fibrillation degree of the Lyocell staple fibers through the internal algorithm of the control unit.

[0021] As can be seen from the above steps, in cooperation with the equipment for measuring the fibrillation degree of Lyocell staple fibers, the experimenter only needs to fix the material on the frame, then set the necessary test parameters, and start the driving mechanism through the control unit. The rest of the work is evenly carried out by the equipment itself, greatly improving the detection efficiency. Without manual interference, it directly improves the detection accuracy and precision.

[0022] It should be understood that the content described in the invention content part is not intended to limit the key or important features of the embodiments of the present disclosure, nor is it used to limit the scope of the present disclosure. Other features of the present disclosure will become easily understood through the following description. Brief Description of the Drawings

[0023] Figure 1 Shows the overall structural schematic diagram of a device for measuring the fibrillation degree of Lyocell staple fibers provided by an embodiment of the present invention;

[0024] Figure 2 Shows the schematic diagram of the fixing method of Lyocell staple fibers in a device for measuring the fibrillation degree of Lyocell staple fibers provided by an embodiment of the present invention;

[0025] Figure 3Schematic diagram of the bracket structure in a device for measuring the fibrillation degree of Lyocell staple fibers provided by an embodiment of the present invention;

[0026] Figure 4 Schematic diagram of the bottom structure of the operation window in a device for measuring the fibrillation degree of Lyocell staple fibers provided by an embodiment of the present invention;

[0027] Figure 5 Schematic diagram of the process flow for a method of measuring the fibrillation degree of Lyocell staple fibers provided by an embodiment of the present invention.

[0028] Symbol description

[0029] 1. Body; 11. Display screen; 12. Operation window; 13. Roller shaft; 14. Ring plate; 15. Channel; 16. Opening; 2. Bracket; 21. Wedge-shaped groove; 22. Relief channel; 23. Socket; 3. Upper clamp; 4. Lower clamp; 5. Limiting member; 51. Insertion part; 52. Limiting part; 6. Partition board; 61. Grille; 7. Photoelectric switch; 8. Guide rod. Detailed implementation manners

[0030] Next, the preferred embodiments (or implementation manners) of the present invention will be described in detail with reference to the accompanying drawings.

[0031] The present invention provides a device and a method for measuring the fibrillation degree of Lyocell staple fibers. The device includes a body 1. A roller shaft 13 is horizontally arranged on one side of the body 1. A driving mechanism for driving the roller shaft 13 to rotate around its shaft body is also arranged inside the body 1. A bracket 2 is horizontally mounted on the roller shaft 13, which can fix the upper end of the Lyocell staple fiber. The middle part of the Lyocell staple fiber is attached to the friction medium outside the roller shaft 13, and a lower clamp 4 is clamped at the lower end of the Lyocell staple fiber. Moreover, a photoelectric switch 7 is arranged on the travel path of the body 1 where the lower clamp 4 drops. The driving mechanism and the photoelectric switch 7 are both electrically connected to the control power supply arranged inside the body 1. Thus, through the number of rotation turns and rotation speed of the roller shaft 13, and the time recorded by the photoelectric switch 7 triggered by the friction fracture of the Lyocell staple fiber when the lower clamp 4 touches it, and combined with the test steps of preparation, material selection, fixing, positioning, parameter setting, starting and calculation, the automatic measurement of the fibrillation degree of Lyocell staple fibers is realized, which not only improves the measurement efficiency but also improves the measurement accuracy.

[0032] Next, refer to Figures 1 - 5 to describe a device and a method for measuring the fibrillation degree of Lyocell staple fibers of the present invention.

[0033] Figure 1 Schematic diagram of the overall structure of a device for measuring the fibrillation degree of Lyocell staple fibers provided by an embodiment of the present invention. Refer to Figure 1As shown, a device for determining the fibrillation degree of lyocell staple fibers provided in this embodiment includes a body 1, a display screen 11 is provided on the front side of the body 1, an operation window 12 is provided on the body 1 below the display screen 11, a roller 13 is horizontally provided in the operation window 12, and both ends of the roller 13 are rotatably connected to the body 1, and a driving mechanism for driving the roller 13 to rotate around its central axis is also provided inside the body 1, and the driving mechanism can be a driving motor, and the output shaft of the driving motor drives the roller 13 to rotate; or it can be a connection method between the driving motor and the reducer, so as to intelligently control the rotation speed of the roller 13, and the driving mechanism is a prior art in this field, which will not be described here. In actual work, the outside of the roller 13 also needs to be fixed with a friction medium, and the friction medium is generally a soaked white silk cloth, which is spread on the outer wall of the roller 13 and fixed to the roller 13.

[0034] A ring plate 14 is sleeved on each end of the roller shaft 13. The ring plate 14 rotates coaxially with the roller shaft 13, and the ring plate 14 is close to the side wall of the machine body 1 on the corresponding side and is connected to the machine body 1 for rotation. A bracket 2 is horizontally arranged between the two ring plates 14. The bracket 2 is rod-shaped, and its two ends are respectively fixed on the side wall of the ring plate 14, so that the relative position of the bracket 2 and the roller shaft 13 can be adjusted by rotating the ring plate 14 and the machine body 1. Angle scale lines are also arranged on the circumference of one side of the ring plate 14 to facilitate the experimenter to adjust the experimental parameters.

[0035] Figure 2 FIG. 1 is a schematic diagram showing a method for fixing lyocell staple fibers in a device for determining the fibrillation degree of lyocell staple fibers provided by an embodiment of the present invention. Figure 2 As shown, the upper end of the lyocell staple fiber is clamped with an upper clamp 3, and the lower end is clamped with a lower clamp 4. The upper clamp 3 and the lower clamp 4 have the same structure, so as to facilitate the operation of the experimenter and improve the operation efficiency of the experimenter. When the upper clamp 3 is fixed, the lower clamp 4 can be used as a counterweight to keep the lyocell staple fiber in a straight state.

[0036] Figure 3 The schematic diagram of the structure of the support 2 in the device for measuring the fibrillation degree of lyocell staple fibers provided by the embodiment of the present invention is shown. Figure 3 As shown, the bracket 2 is provided with a wedge-shaped groove 21 for clamping the upper clamp 3. In order to reduce the error of the experiment and improve the accuracy of the experiment, a plurality of wedge-shaped grooves 21 are equidistantly arranged along the length direction of the bracket 2. In this embodiment, the number of wedge-shaped grooves 21 is 30 as an example; the upper and lower ends of each wedge-shaped groove 21 are both provided with an opening 16 to facilitate the placement of the upper clamp 3; and the bracket 2 is provided with a clearance channel 22 at the bottom of each wedge-shaped groove 21 to allow the lyocell staple fibers to pass through.

[0037] Each wedge-shaped groove 21 is provided with an insertion hole 23 on its bottom wall. The insertion hole 23 is provided in the gap area closed by the upper clamp 3. When the upper clamp 3 is inserted into the wedge-shaped groove 21, a rod-shaped stopper 5 can be inserted into the insertion hole 23. The stopper 5 includes a plug-in portion 51 plugged into the insertion hole 23 and a stopper 52 located at the tail of the plug-in portion 51. The size of the stopper 52 is larger than that of the plug-in portion 51, which is not only convenient for manual operation, but also limits the sliding of the upper clamp 3 on the stopper 52. Therefore, after the lyocell staple fibers are worn and broken, the reverse elastic force of the lyocell staple fibers is applied to the upper clamp 3, which easily causes the upper clamp 3 to separate from the wedge-shaped groove 21. Therefore, the stopper 5 can steadily fix the upper clamp 3 inside the wedge-shaped groove 21. Moreover, when the stopper 5 and the insertion hole 23 are plugged into each other, the stopper 5 does not contact the upper clamp 3 itself. The upper clamp 3 is subjected to the downward force exerted by the lyocell staple fibers, so that the upper clamp 3 is closely attached to the inner wall of the wedge-shaped groove 21, and also slightly deformed. The two clamping arms are more tightly clamped under the guidance of the side wall of the wedge-shaped groove 21, and the clamp 4 itself has a tendency to move toward the clearance channel 22. The stopper 5 does not contact the upper clamp 3 itself, which ensures the normal deformation space of the upper clamp 3, thereby limiting the separation of the upper clamp 3 from the bracket 2, and also ensures the stability of the upper clamp 3 clamping and fixing the lyocell staple fibers. Moreover, as the ring plate 14 controls the rotation of the bracket 2, the degree of attachment between the upper clamp 3 and the wedge-shaped groove 21 can also be adjusted, thereby improving the stability of the retention of the upper clamp 3 and the wedge-shaped groove 21.

[0038] Figure 4 The bottom structure diagram of the operating window 12 in the device for measuring the fibrillation degree of lyocell staple fibers provided by an embodiment of the present invention is shown. Figure 4 As shown, a strip-shaped channel 15 is provided at the bottom of the operation window 12 along the length direction of the roller shaft 13, and a plurality of mutually parallel partitions 6 are vertically arranged in the channel 15, and adjacent partitions 6 are arranged at intervals, and the two ends of the partitions 6 are respectively fixedly connected to the inner walls of the two sides of the channel 15, so that a plurality of equally large grids 61 are formed in the channel 15, and each grid 61 is located directly below the wedge-shaped groove 21, thereby limiting the area where the lower clip 4 falls. A photoelectric switch 7 is fixed on one side of each grid 61, and the emission end of the photoelectric switch 7 faces the other side of the grid 61, thereby ensuring the accuracy of the triggering of the photoelectric switch 7.

[0039] In order to reduce the situation where the lower clamp 4 is clamped at the port of the grille 61, a guide rod 8 is horizontally arranged above each partition plate 6. One end of the guide rod 8 is fixed to the inner wall of the channel 15, and there is a gap between the other end of the guide rod 8 and the other side of the channel 15. After the upper clamp 3 is fixed to the bracket 2, the lower clamp 4 is located in the area between adjacent guide rods 8. As the roller shaft 13 rotates, the guide rod 8 restricts the swaying amplitude of the lower clamp 4, thereby ensuring that each lower clamp 4 is located in the corresponding area of the grille 61 port. When the Lyocell staple fiber breaks, the lower clamp 4 drops and triggers the photoelectric switch 7. If the Lyocell staple fiber is wound around the guide rod 8, since there is a gap between one end of the guide rod 8 and the side wall of the channel 15, it is convenient to separate the wound Lyocell staple fiber from the guide rod 8, thereby improving the disassembly efficiency of the Lyocell staple fiber.

[0040] Reference Figure 1 As shown, an opening 16 communicating with the channel 15 is also provided on the front side of the machine body 1, so that after the lower clamp 4 falls into the channel 15, it will fall onto the front side of the machine body 1 along the opening 16, facilitating the collection and recycling of the lower clamp 4.

[0041] A control unit is also provided in the machine body 1. The control unit can be a single-chip microcomputer or a computer. It is electrically connected to the driving mechanism and can be used to control the output power of the driving mechanism, adjust the rotation speed of the roller shaft 13, and record the number of rotations of the rotating shaft; it is also electrically connected to each photoelectric switch 7 to record the triggering times of the photoelectric switch 7 and the time from the start of the driving mechanism to the triggering of the photoelectric switch 7, so as to input the algorithm integrated in the control unit to calculate the fibrillation degree of the Lyocell staple fiber; the control unit is also electrically connected to the display screen 11 to display the rotation speed of the driving mechanism, the number of rotations of the roller shaft 13, the triggering times of the photoelectric switch 7, and the time from the start of the driving mechanism to the triggering of each photoelectric switch 7, so that the experimental personnel can directly input parameters and directly read data.

[0042] Figure 5 The figure shows a schematic flow chart of a method for measuring the fibrillation degree of Lyocell staple fiber provided by an embodiment of the present invention. Reference Figure 5 As shown, a method for measuring the fibrillation degree of Lyocell staple fiber includes the following steps:

[0043] S1: Preparation. Soak the white silk cloth in water and spread it on the outer peripheral surface of the roller shaft 13, and fix the soaked white silk cloth to the roller shaft 13.

[0044] S2: Material selection. Select Lyocell staple fibers of equal length, and there are at least 25 Lyocell staple fibers. Ensure that the length of the Lyocell staple fiber is such that after its upper end is fixed to the bracket 2, its lower end exceeds the guide rod 8 and does not trigger the photoelectric switch 7.

[0045] S3: Fixing frame. Clamp the upper clamp 3 and the lower clamp 4 at both ends of the lyocell staple fiber respectively. Clamp the upper clamp 3 in the wedge-shaped groove 21 of the bracket 2, and stably fix the upper clamp 3 in the wedge-shaped groove 21 of the bracket 2 by inserting the limiting member 5 into the insertion hole 23. The lower clamp 4 falls naturally and is located in the space between adjacent guide rods 8.

[0046] S4: Positioning. Rotate the ring plate 14 to drive the bracket 2 to rotate and adjust the contact range between each lyocell staple fiber and the white silk cloth.

[0047] S5: Set parameters. Set the rotation speed of the driving mechanism and the number of trigger times of the photoelectric switch 7 to stop the driving mechanism.

[0048] S6: Start and calculate. Start the driving mechanism, record the number of turns of the roller shaft 13, the number of trigger times and the time used when the lower clamp 4 drops and triggers the photoelectric switch 7. When the number of drops of the lower clamp 4 reaches the preset number of trigger times of the photoelectric switch 7, the driving mechanism stops automatically, and the fibrillation degree of the lyocell staple fiber is analyzed by the internal algorithm of the control unit.

[0049] In the description of this specification, terms such as "connection", "installation", "fixation" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0050] The above are only the preferred embodiments of this application and are not used to limit this application. For those skilled in the art, this application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included in the protection scope of this application.

Claims

1. A device for measuring the fibrillation degree of lyocell staple fibers, characterized in that: include: The machine body (1) has an operation window (12) on one side; A roller shaft (13) is horizontally located in the operating window (12), with both ends being rotatably connected to the machine body (1), and a friction medium being fixed on its outer peripheral surface; A driving mechanism, which is located in the machine body (1) and is connected to the end of the roller shaft (13); A support (2) is horizontally supported above the roller shaft (13) and is connected to the machine body (1); An upper clamp (3) is clamped on the upper end of the lyocell staple fibers and fixed on the support (2); A lower clamp (4) is clamped at the lower end of the lyocell staple fibers and allows the lyocell staple fibers to be attached to the surface of the friction medium; A channel (15) is provided at the bottom of the operating window (12) and is used to collect the fallen lower clip (4); A plurality of photoelectric switches (7) are provided and evenly distributed along the length direction of the channel (15), and the emission ends of the photoelectric switches (7) point to the opposite side of the channel (15); A control unit is located in the body (1) and is electrically connected to the drive mechanism, and is used to record the duration of the start and stop of the drive mechanism, and the number of revolutions of the roller (13), and is also electrically connected to each of the photoelectric switches (7) and is used to record the number of times the lower clamp (4) is triggered and control the drive mechanism to close; the bracket (2) is provided with a plurality of wedge-shaped grooves (21) for clamping the upper clamp (3) at intervals along the length direction of the bracket (2), and a clearance channel (22) is connected to the wedge-shaped groove (21) and is used to accommodate Lyocell staple fibers; a plug hole (23) is provided on the bottom wall of the wedge-shaped groove (21), and a limit member (5) is inserted into the plug hole (23), and the limit member (5) is inserted into the upper clamp (3) is used to limit the separation of the upper clamp (3) and the wedge-shaped groove (21); a plurality of partitions (6) are vertically arranged inside the channel (15), so that a plurality of grids (61) of equal width are formed inside the channel (15), and the photoelectric switch (7) is fixed on one side of the grid (61); a guide rod (8) is horizontally arranged above each of the partitions (6), and one end of the guide rod (8) is fixed on one side of the channel (15); and a display screen (11) is also included, which is electrically connected to the control unit and is used to display the rotation speed of the driving mechanism, the number of rotations of the roller (13), the number of triggering of the photoelectric switch (7), and the time taken from the start of the driving mechanism to the triggering of each photoelectric switch (7).

2. The device for measuring the fibrillation degree of lyocell staple fibers according to claim 1, characterized in that: After the limiting member (5) and the insertion hole (23) are plugged into each other, they do not contact the upper clamp (3).

3. The device for measuring the fibrillation degree of lyocell staple fibers according to claim 1, characterized in that: A gap is left between the other end of the guide rod (8) and the side wall of the channel (15).

4. The device for measuring the fibrillation degree of lyocell staple fibers according to claim 1, characterized in that: A ring plate (14) is coaxially arranged at each end of the roller shaft (13), and the ring plate (14) is rotatably connected to the machine body (1). The ends of the bracket (2) are fixed to the ring plates (14) on both sides, and a rotation reading is marked on one side of the ring plate (14).

5. A method for measuring the fibrillation degree of lyocell staple fibers, using the device for measuring the fibrillation degree of lyocell staple fibers according to any one of claims 1 to 4, characterized in that: The steps include: Preparation: soaking the white silk cloth in water, spreading it on the outer peripheral surface of the roller (13), and fixing it to the roller (13); Selecting materials, selecting lyocell staple fibers of equal length, and at least 25 lyocell staple fibers, so that the length of the lyocell staple fibers is such that after the upper ends of the lyocell staple fibers are fixed to the bracket (2), the lower ends of the lyocell staple fibers exceed the guide rod (8) and do not trigger the photoelectric switch (7); The fixing frame is configured to clamp the upper clamp (3) and the lower clamp (4) at the two ends of the lyocell staple fibers respectively, and the upper clamp (3) is clamped in the wedge-shaped groove (21) of the bracket (2), and the upper clamp (3) is fixed in the wedge-shaped groove (21) of the bracket (2) by plugging the stopper (5) into the plug hole (23); the lower clamp (4) falls naturally and is located on one side of a guide rod (8); Positioning, rotating the ring plate (14), driving the bracket (2) to rotate, and adjusting the contact area between each lyocell staple fiber and the white silk cloth; Setting parameters, setting the rotation speed of the driving mechanism, and the amount of lyocell staple fibers; Start and calculate, start the driving mechanism, record the number of rotations of the roller (13), and the number of triggering times and time used by the photoelectric switch (7) triggered by the lower clamp (4) falling, and when the number of times the lower clamp (4) falls reaches the set number of Lyocell staple fibers, control the driving mechanism to stop, and analyze the degree of fibrillation of the Lyocell staple fibers through the internal algorithm of the control unit.

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