Viscose yarn temperature and humidity adaptive anti-slip tensile property testing device and method

Abstract

The invention discloses a viscose yarn temperature and humidity adaptive anti-slip tensile property testing device and method, and belongs to the field of textile materials. A viscose yarn temperature and humidity adaptive type anti-slip tensile property testing device comprises a base, a box body is installed at the top end of the base, a sealing cabinet door used for sealing the box body is hinged to the surface of the box body, a lower clamp seat is connected to the bottom in the box body, an upper clamp is arranged at the top in the box body in a sliding mode, and the lower clamp seat is connected to the bottom in the box body. A guide seat is arranged on the top of the lower clamp seat, and a centering sliding block is arranged in the guide seat in a sliding mode. According to the invention, the circulating fan, the through hole back plate and the return air inlet are matched to construct a laminar flow circulating air duct, so that the adjusted air enters a test area in a low-speed uniform permeation manner, and compared with the traditional direct blowing manner, the swing and vibration of the light viscose yarn caused by strong air flow are effectively avoided, and the test efficiency is improved. The uniformity of temperature and humidity in the box body is ensured, and the stability of force value test data is also ensured.

Description

Technical Field

[0001] This invention relates to the field of textile materials technology, and in particular to a temperature and humidity-adaptive anti-slip tensile performance testing device and method for viscose yarn. Background Technology

[0002] Viscose yarn, a widely used regenerated cellulose fiber, is characterized by strong moisture absorption and good air permeability, but low wet modulus. Its mechanical properties vary significantly under different temperature and humidity environments, making tensile performance testing a key step in controlling product quality. In existing technologies, tensile performance testing of viscose yarn is typically performed using a universal testing machine. This type of device mainly consists of a base, a column frame, a screw drive system, a moving crossbeam, and upper and lower clamps located inside an environmental chamber. During the test, the environmental chamber regulates the internal temperature and humidity through a heater and a humidifier. After the environment stabilizes, the operator clamps and fixes both ends of the yarn sample to the upper and lower clamps. The motor drives the screw to raise the moving crossbeam vertically, applying axial tension to the yarn until it breaks, thereby measuring its breaking strength and elongation.

[0003] However, existing tensile testing devices have significant shortcomings when testing viscose yarn, especially viscose yarn under wet or high humidity conditions. First, viscose yarn becomes soft and slippery after absorbing moisture. Traditional static guiding structures and metal clamps cannot effectively remove the free water film on the yarn surface, which can easily lead to water film lubrication and cause the yarn to slip or become unstable during the stretching process. Second, current devices lack an automatic centering mechanism. It is difficult to ensure vertical centering of wet and drooping viscose yarn manually, and off-axis stretching will introduce shearing errors. Finally, if the circulating airflow in the closed chamber is not designed properly and blows directly onto the lightweight yarn, it will cause fluctuations in the force value during the test, thus affecting the test accuracy. Summary of the Invention

[0004] The purpose of this invention is to solve the problems in the prior art mentioned above, and to propose a temperature and humidity-adaptive anti-slip tensile performance testing device and method for viscose yarn.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A temperature and humidity-adaptive anti-slip tensile performance testing device for viscose yarn includes a base, a box body mounted on the top of the base, a sealing door hinged to the surface of the box body for closing the box body, a lower clamp seat connected to the bottom of the box body, an upper clamp slidably mounted on the top of the box body, a guide seat mounted on the top of the lower clamp seat, a centering slider slidably mounted inside the guide seat, a centering guide wheel rotatably connected inside the centering slider, and a V-shaped wire groove formed on the surface of the centering guide wheel.

[0006] Preferably, guide columns are fixedly installed on both the left and right sides inside the housing, and a movable crossbeam is slidably connected to the surface of the guide column. The upper clamp is installed at the bottom end of the movable crossbeam, and the two ends of the movable crossbeam are respectively threadedly connected to the screw drive assembly installed inside the guide column. The screw drive assembly is connected to the output end of the drive motor installed at the bottom of the housing.

[0007] Preferably, an air inlet is provided at the bottom of the rear side of the box, a circulating fan is provided inside the box, a back plate is fixedly installed on the inner wall of the box, the circulating fan is located between the back plate and the box, and a through hole is provided on the surface of the back plate.

[0008] Preferably, a return air vent is fixedly installed on the top of the inner wall of the rear end of the housing, and a rear cover plate is fixedly installed on the top of the rear end of the housing, with the return air vent located on the front side of the rear cover plate.

[0009] Preferably, two guide seats are provided, and the two guide seats are respectively installed on the top of the output ends on the left and right sides of the lower clamp seat. A sliding mounting cavity is opened at the top of the guide seat near the middle of the lower clamp seat. A buffer spring is installed on the inner wall of the sliding mounting cavity. The other end of the buffer spring is connected to the centering slider. A telescopic rod is connected between the sliding mounting cavity and the centering slider. The buffer spring is sleeved on the surface of the telescopic rod.

[0010] Preferably, the bottom end of the centering slider is rotatably connected to a ball bearing, the bottom end of the sliding mounting cavity is provided with a groove that matches the ball bearing, and the centering slider is slidably connected to the inner wall of the sliding mounting cavity.

[0011] Preferably, the centering slider has a guide wheel mounting cavity inside, the centering guide wheel is rotatably connected inside the guide wheel mounting cavity, the V-shaped wire groove is opened on the surface of the centering guide wheel in the middle, rubber rings are connected to both sides of the surface of the centering guide wheel, and a water-absorbing sponge ring for absorbing water is sleeved on the surface of the V-shaped wire groove.

[0012] Preferably, both sides of the V-shaped guide groove are connected to connecting spokes, and the end of the connecting spoke near the center of the centering guide wheel is provided with a rounded corner, while the end of the connecting spoke away from the rounded corner is connected to a protruding wheel rim.

[0013] Preferably, the guide seat has a liquid collection groove at the bottom of the sliding mounting cavity. The liquid collection groove is shaped like an hourglass. A guide groove is fixedly connected to the bottom of the liquid collection groove. The guide groove gradually decreases in the direction away from the liquid collection groove. Liquid collection tanks are connected to both the left and right sides of the guide seat. The side of the guide groove away from the liquid collection groove is connected to the inside of the liquid collection tank.

[0014] This invention also provides a method for testing the temperature and humidity-adaptive anti-slip tensile properties of viscose yarn, including the following steps: Step 1: Turn on the circulating fan inside the chamber. The circulating airflow is formed through the back panel and the return air vent, and the temperature and humidity inside the chamber are adjusted to the preset test standard. Step 2: Open the sealed cabinet door and pass the adhesive yarn to be tested through the centering guide wheel inside the centering slider so that the yarn is located in the V-shaped yarn passage groove; at this time, the buffer spring cooperates with the centering slider to automatically center the yarn, and at the same time, the water-absorbing sponge ring on the V-shaped yarn passage groove absorbs the free water on the surface of the yarn; then fix the two ends of the yarn to the lower clamp seat and the upper clamp respectively. Step 3: Start the drive motor, and drive the moving crossbeam to move upward along the guide column through the screw transmission assembly to stretch the viscose yarn until it breaks, and record the test data; excess water generated during the test is collected in the liquid collection tank on the guide seat and flows into the liquid collection box through the guide channel.

[0015] Compared with the prior art, the present invention provides a temperature and humidity-adaptive anti-slip tensile performance testing device and method for viscose yarn, which has the following beneficial effects: 1. This viscose yarn temperature and humidity adapted anti-slip tensile performance testing device constructs a laminar flow circulation channel through the combination of a circulating fan, a perforated back plate, and a return air inlet. This design allows the regulated air to enter the test area in a low-speed, uniform permeation manner. Compared with the traditional direct blowing method, it effectively avoids the swaying and vibration of lightweight viscose yarn caused by strong airflow, ensuring both the uniformity of temperature and humidity inside the chamber and the stability of force value test data.

[0016] 2. This temperature and humidity-adaptive anti-slip tensile performance testing device for viscose yarn replaces traditional sliding friction with rolling contact of the centering guide wheel. Combined with the adaptive adjustment of the buffer spring, it achieves automatic centering while eliminating surface fuzzing caused by rigid scraping of wet yarn. On the other hand, the water-absorbing sponge ring on the V-shaped yarn groove can instantly absorb the free water film on the yarn surface, eliminating the phenomenon of reduced friction caused by water film lubrication. Thus, it achieves stable anti-slip without increasing destructive clamping force, significantly improving the testing accuracy.

[0017] 3. This viscose yarn temperature and humidity adapted anti-slip tensile performance testing device effectively prevents the accumulation of liquid on the lower clamp seat or the bottom of the box by timely collecting and draining the water dripping from the wet yarn and the waste liquid overflowing from the saturated sponge during the testing process. This avoids the risk of metal parts corrosion and electrical components short circuits, and ensures the stable operation of the equipment in long-term high humidity environments. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a temperature and humidity-adaptive anti-slip tensile performance testing device for viscose yarn proposed in this invention; Figure 2This is a schematic diagram of the internal structure of the housing of a temperature and humidity-adaptive anti-slip tensile performance testing device for viscose yarn proposed in this invention. Figure 3 This is a side view sectional view of the housing structure of a temperature and humidity-adaptive anti-slip tensile performance testing device for viscose yarn proposed in this invention. Figure 4 This is a schematic diagram of the surface structure of the lower clamp seat of a viscose yarn temperature and humidity adaptable anti-slip tensile performance testing device proposed in this invention; Figure 5 This is a schematic diagram of the guide seat structure during installation of the viscose yarn temperature and humidity adaptable anti-slip tensile performance testing device proposed in this invention; Figure 6 This is a side sectional view of the guide seat of a temperature and humidity-adaptive anti-slip tensile performance testing device for viscose yarn proposed in this invention. Figure 7 This is a schematic diagram of the centering guide wheel installation of the temperature and humidity-adaptive anti-slip tensile performance testing device for viscose yarn proposed in this invention. Figure 8 This is a schematic diagram showing the disassembled surface structure of the centering guide wheel of a viscose yarn temperature and humidity adaptable anti-slip tensile performance testing device proposed in this invention. Figure 9 This is a schematic diagram of the structure of the connecting spoke surface of a viscose yarn temperature and humidity adaptable anti-slip tensile performance testing device proposed in this invention; Figure 10 This is a cross-sectional view of the liquid collection tank of a viscose yarn temperature and humidity-adaptive anti-slip tensile performance testing device proposed in this invention.

[0019] In the diagram: 1. Base; 2. Cabinet body; 3. Sealed cabinet door; 4. Lower clamp seat; 5. Moving crossbeam; 6. Upper clamp; 7. Guide column; 8. Air inlet; 9. Circulating fan; 10. Back plate; 11. Return air inlet; 12. Rear cover plate; 13. Guide seat; 14. Sliding mounting cavity; 15. Buffer spring; 16. Centering slider; 17. Ball bearing; 18. Slide groove; 19. Guide wheel mounting cavity; 20. Centering guide wheel; 21. V-shaped wire groove; 22. Rubber ring; 23. Water-absorbing sponge ring; 24. Connecting spoke; 25. Rounded corner; 26. Protruding wheel rim; 27. Liquid collection tank; 28. Flow guide groove; 29. ​​Liquid collection box. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0022] Reference Figures 1-10 A temperature and humidity-adaptive anti-slip tensile performance testing device for viscose yarn includes a base 1, a box 2 mounted on the top of the base 1, a sealing door 3 hinged to the surface of the box 2 for sealing the box 2, a transparent observation window provided in the middle of the sealing door 3 for observing the inside of the box 2, a lower clamp seat 4 connected to the bottom inside the box 2, an upper clamp 6 slidably provided on the top inside the box 2, a guide seat 13 provided on the top of the lower clamp seat 4, a centering slider 16 slidably provided inside the guide seat 13, a centering guide wheel 20 rotatably connected inside the centering slider 16, and a V-shaped wire groove 21 opened on the surface of the centering guide wheel 20.

[0023] Guide columns 7 are fixedly installed on both the left and right sides inside the housing 2. A movable crossbeam 5 is slidably connected to the surface of the guide column 7. Guide holes that are compatible with the guide column 7 are opened at both ends of the movable crossbeam 5. The upper clamp 6 is fixedly installed at the center of the bottom end of the movable crossbeam 5 by bolts. The upper clamp 6 is installed at the bottom end of the movable crossbeam 5. The two ends of the movable crossbeam 5 are respectively threadedly connected to the screw drive assembly set inside the guide column 7. The screw drive assembly is connected to the output end of the drive motor set at the bottom of the housing 2.

[0024] Reference Figures 2-3 A temperature and humidity-adaptive anti-slip tensile performance testing device for viscose yarn is provided. An air inlet 8 is provided at the bottom of the rear side of the box 2. A circulating fan 9 is provided inside the box 2. A back plate 10 is fixedly installed on the inner wall of the box 2. A static pressure air cavity is formed between the rear wall of the box 2 and the back plate 10. The circulating fan 9 is located in the static pressure air cavity between the back plate 10 and the box 2. The back plate 10 has a number of through holes distributed in a matrix on its surface. The diameter of the through holes gradually increases from bottom to top to balance the air volume at different heights and form a uniform laminar airflow.

[0025] A return air inlet 11 is fixedly installed on the top of the inner wall of the rear end of the housing 2. A rear cover plate 12 is fixedly installed on the top of the rear end of the housing 2. The return air inlet 11 is located on the front side of the rear cover plate 12. A return air channel is formed inside the rear cover plate 12. One end of the return air channel is connected to the return air inlet 11, and the other end extends downward and is connected to the air inlet 8 or the input end of the circulating fan 9 to form a closed-loop air passage.

[0026] Reference Figures 4-9 A temperature and humidity-adaptive anti-slip tensile performance testing device for viscose yarn is provided. Two guide seats 13 are provided, and the two guide seats 13 are respectively installed on the top of the output ends on the left and right sides of the lower clamp seat 4. A sliding mounting cavity 14 is opened on the top of the side of the guide seat 13 near the middle of the lower clamp seat 4. A buffer spring 15 is installed on the inner wall of the sliding mounting cavity 14. The other end of the buffer spring 15 is connected to the centering slider 16 to provide elastic restoring force in the direction of the center of the housing 2. A telescopic rod is connected between the sliding mounting cavity 14 and the centering slider 16. The buffer spring 15 is sleeved on the surface of the telescopic rod. The telescopic rod is used to limit the displacement limit of the centering slider 16 and prevent the spring from bending.

[0027] The bottom end of the centering slider 16 is connected to a ball bearing 17. The bottom end of the sliding mounting cavity 14 is provided with a groove 18 that matches the ball bearing 17. The centering slider 16 is slidably connected to the inner wall of the sliding mounting cavity 14. The cooperation between the ball bearing 17 and the groove 18 converts the sliding friction between the centering slider 16 and the guide seat 13 into rolling friction, thereby improving the response sensitivity to minute tension changes.

[0028] The centering slider 16 has a guide wheel mounting cavity 19 inside. The centering guide wheel 20 is rotatably connected to the inside of the guide wheel mounting cavity 19 through a low-damping miniature bearing. A V-shaped wire groove 21 is opened on the surface of the centering guide wheel 20 in the middle. Rubber rings 22 are connected to both sides of the surface of the centering guide wheel 20 to provide flexible cushioning during installation. A water-absorbing sponge ring 23 is fitted on the surface of the V-shaped wire groove 21 for absorbing water. The thickness of the water-absorbing sponge ring 23 allows its outer surface to contact the viscose yarn, and the water-absorbing sponge ring 23 is made of high-density PVA water-absorbing material.

[0029] Both sides of the V-shaped yarn guide groove 21 are connected to connecting spokes 24. The end of the connecting spoke 24 near the center of the centering guide wheel 20 is provided with a rounded corner 25. The end of the connecting spoke 24 away from the rounded corner 25 is connected to a protruding rim 26. The outer diameter of the protruding rim 26 is larger than the maximum outer diameter of the V-shaped yarn guide groove 21, forming an anti-derailment structure to prevent the yarn from detaching from the guide wheel when vibrating.

[0030] Reference Figure 10 The guide seat 13 is located at the bottom of the sliding mounting cavity 14 and has a liquid collection groove 27. The liquid collection groove 27 is shaped like an hourglass with a wider top and a narrower bottom to accelerate the convergence of liquid droplets. A guide groove 28 is fixedly connected to the bottom of the liquid collection groove 27. The guide groove 28 gradually decreases in the direction away from the liquid collection groove 27 to form a gravity guiding slope. Liquid collection tanks 29 are connected to both the left and right sides of the guide seat 13. The liquid collection tanks 29 are detachable transparent containers. The side of the guide groove 28 away from the liquid collection groove 27 is connected to the inside of the liquid collection tank 29.

[0031] In this invention, before the test begins, the operator closes the sealed cabinet door 3 to create a closed test space, and starts the circulating fan 9 located inside the chamber 2. External or regulated air is drawn in through the air inlet 8 at the bottom rear side of the chamber 2. After being processed by the temperature and humidity regulating components, the circulating fan 9 pressurizes and sends it to the back plate 10. The airflow passes through the evenly distributed through holes on the surface of the back plate 10 and slowly enters the test chamber in a laminar flow form, avoiding the swaying of the viscose yarn caused by strong winds blowing directly. The air after heat and humidity exchange rises to the return air inlet 11 at the top of the chamber 2 and circulates back through the air duct inside the rear cover plate 12, thereby establishing and maintaining a constant temperature and humidity environment that meets the viscose yarn test standards inside the chamber 2.

[0032] Subsequently, the operator passes the wet viscose yarn sample to be tested through the centering slider 16 inside the guide seat 13 above the lower clamp 4, so that the yarn is embedded in the V-shaped thread groove 21 on the surface of the centering guide wheel 20. During this process, the ball bearing 17 at the bottom of the centering slider 16 rolls in the sliding groove 18 inside the guide seat 13. With the elastic restoring force of the buffer spring 15 in the sliding mounting cavity 14, the centering slider 16 can make back-and-forth micro-adjustments according to the tension change of the yarn, realizing automatic flexible centering. At the same time, the yarn and the centering... When the guide wheel 20 contacts, the water-absorbing sponge ring 23 fitted on the surface of the V-shaped yarn groove 21 can absorb the free water film on the yarn surface. The design of the connecting spokes 24 and the protruding wheel rim 26 ensures the stability of the guide wheel rotation, and the protruding wheel rim 26 connected to the surface of the connecting spokes 24 can prevent the yarn from detaching from the V-shaped yarn groove 21. By replacing the traditional sliding friction with this rolling contact method, the surface water film is effectively removed to prevent slippage, while avoiding the phenomenon of surface fuzzing caused by rigid scraping of wet viscose yarn.

[0033] After the yarn has been pre-treated and fixed between the lower clamp 4 and the upper clamp 6, the drive motor inside the base 1 starts, drives the lead screw transmission assembly to rotate, and drives the moving crossbeam 5 to move vertically upward smoothly along the guide columns 7 on both sides of the housing 2; the upper clamp 6 installed at the bottom of the moving crossbeam 5 rises accordingly, applying axial tension to the viscose yarn. Since the water film on the yarn surface has been removed by the water-absorbing sponge ring 23, the clamp jaws can directly contact the fiber entity, ensuring the clamping stability under high humidity. As the tensile displacement increases, the system records the stress data and elongation changes of the yarn in real time until the yarn breaks, thereby obtaining accurate wet breaking strength and elongation data.

[0034] Since the viscose yarn is wet or dripping, and the absorbent sponge ring 23 may overflow after it is saturated, the liquid will naturally drip into the liquid collection tank 27 at the top of the guide seat 13. The liquid collection tank 27 is designed in the shape of an hourglass to quickly collect the droplets. The collected waste liquid flows automatically along the guide channel 28 set at the bottom to the liquid collection box 29 on the side of the guide seat 13 for centralized collection under the action of gravity, thereby preventing water from spreading at the bottom of the lower clamp seat 4, avoiding the risk of corrosion of the metal parts of the equipment or electrical short circuit caused by long-term high humidity operation, and ensuring the long-term operational stability of the testing device.

[0035] A method for testing the temperature and humidity-adaptive anti-slip tensile properties of viscose yarn, comprising the following steps: Step 1: Turn on the circulating fan 9 inside the chamber 2. The circulating airflow is formed through the back panel 10 and the return air vent 11 to adjust the temperature and humidity inside the chamber 2 to the preset test standard. Step 2: Open the sealed cabinet door 3, and pass the yarn to be tested through the centering guide wheel 20 inside the centering slider 16, so that the yarn is located in the V-shaped yarn passage groove 21; at this time, the buffer spring 15 cooperates with the centering slider 16 to automatically center the yarn, and at the same time, the water-absorbing sponge ring 23 on the V-shaped yarn passage groove 21 absorbs the free water on the surface of the yarn; then fix the two ends of the yarn to the lower clamp seat 4 and the upper clamp 6 respectively; Step 3: Start the drive motor and drive the moving crossbeam 5 to move upward along the guide column 7 through the screw transmission assembly to stretch the viscose yarn until it breaks, and record the test data; excess water generated during the test is collected in the liquid collection tank 27 on the guide seat 13 and flows into the liquid collection tank 29 through the guide channel 28.

[0036] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A temperature and humidity-adaptive anti-slip tensile performance testing device for viscose yarn, comprising a base (1), a box (2) mounted on the top of the base (1), a sealing cabinet door (3) hinged to the surface of the box (2) for closing the box (2), a lower clamp seat (4) connected to the bottom inside the box (2), and an upper clamp (6) slidably disposed on the top inside the box (2), characterized in that, The lower clamp seat (4) is provided with a guide seat (13) at its top. A centering slider (16) is slidably provided inside the guide seat (13). A centering guide wheel (20) is rotatably connected inside the centering slider (16). A V-shaped wire groove (21) is provided on the surface of the centering guide wheel (20).

2. The viscose yarn temperature and humidity adaptive anti-slip tensile performance testing device according to claim 1, characterized in that, Guide columns (7) are fixedly installed on both the left and right sides inside the box (2). A movable crossbeam (5) is slidably connected to the surface of the guide column (7). The upper clamp (6) is installed at the bottom end of the movable crossbeam (5). The two ends of the movable crossbeam (5) are threadedly connected to the screw drive assembly set inside the guide column (7). The screw drive assembly is connected to the output end of the drive motor set at the bottom of the box (2).

3. The viscose yarn temperature and humidity adaptive anti-slip tensile performance testing device according to claim 1, characterized in that, An air inlet (8) is provided at the bottom of the rear side of the box (2). A circulating fan (9) is provided inside the box (2). A back plate (10) is fixedly installed on the inner wall of the box (2). The circulating fan (9) is located between the back plate (10) and the box (2). A through hole is provided on the surface of the back plate (10).

4. The viscose yarn temperature and humidity adaptive anti-slip tensile performance testing device according to claim 1, characterized in that, An air return vent (11) is fixedly installed on the top of the inner wall of the rear end of the box (2), and a rear cover plate (12) is fixedly installed on the top of the rear end of the box (2). The air return vent (11) is located on the front side of the rear cover plate (12).

5. The viscose yarn temperature and humidity adapted anti-slip tensile performance testing device according to claim 1, characterized in that, Two guide seats (13) are provided, and the two guide seats (13) are respectively installed on the top of the output ends on the left and right sides of the lower clamp seat (4). A sliding mounting cavity (14) is opened on the top of the guide seat (13) near the middle of the lower clamp seat (4). A buffer spring (15) is installed on the inner wall of the sliding mounting cavity (14). The other end of the buffer spring (15) is connected to the centering slider (16). A telescopic rod is connected between the sliding mounting cavity (14) and the centering slider (16). The buffer spring (15) is sleeved on the surface of the telescopic rod.

6. The viscose yarn temperature and humidity adapted anti-slip tensile performance testing device according to claim 5, characterized in that, The bottom end of the centering slider (16) is connected to a ball (17), and the bottom end of the sliding mounting cavity (14) is provided with a groove (18) that matches the ball (17). The centering slider (16) is slidably connected to the inner wall of the sliding mounting cavity (14).

7. The viscose yarn temperature and humidity adaptive anti-slip tensile performance testing device according to claim 1, characterized in that, The centering slider (16) has a guide wheel mounting cavity (19) inside. The centering guide wheel (20) is rotatably connected inside the guide wheel mounting cavity (19). The V-shaped wire groove (21) is opened on the surface of the centering guide wheel (20) in the middle. Rubber rings (22) are connected to both sides of the surface of the centering guide wheel (20). A water-absorbing sponge ring (23) for absorbing water is sleeved on the surface of the V-shaped wire groove (21).

8. The viscose yarn temperature and humidity adaptive anti-slip tensile performance testing device according to claim 1, characterized in that, Both sides of the V-shaped groove (21) are connected to connecting spokes (24). The end of the connecting spoke (24) near the center of the centering guide wheel (20) is provided with a rounded corner (25), and the end of the connecting spoke (24) away from the rounded corner (25) is connected to a protruding rim (26).

9. The viscose yarn temperature and humidity adaptive anti-slip tensile performance testing device according to claim 1, characterized in that, The guide seat (13) is provided with a liquid collection groove (27) at the bottom of the sliding mounting cavity (14). The liquid collection groove (27) is shaped like an hourglass. A guide groove (28) is fixedly connected to the bottom of the liquid collection groove (27). The guide groove (28) gradually decreases in the direction away from the liquid collection groove (27). Liquid collection tanks (29) are connected to both the left and right sides of the guide seat (13). The side of the guide groove (28) away from the liquid collection groove (27) is connected to the inside of the liquid collection tank (29).

10. A method for testing the temperature and humidity-adaptive anti-slip tensile properties of viscose yarn, used in the viscose yarn temperature and humidity-adaptive anti-slip tensile properties testing device according to any one of claims 1-9, characterized in that, The main steps include: Step 1: Turn on the circulating fan (9) inside the box (2), and form a circulating airflow through the back panel (10) and the return air vent (11) to adjust the temperature and humidity inside the box (2) to the preset test standard; Step 2: Open the sealed cabinet door (3), and pass the adhesive yarn to be tested through the centering guide wheel (20) inside the centering slider (16) so that the yarn is located in the V-shaped yarn passage groove (21); at this time, the buffer spring (15) cooperates with the centering slider (16) to automatically center the yarn, and at the same time, the water-absorbing sponge ring (23) on the V-shaped yarn passage groove (21) absorbs the free water on the surface of the yarn; then fix the two ends of the yarn to the lower clamp seat (4) and the upper clamp (6) respectively; Step 3: Start the drive motor and drive the moving crossbeam (5) to move upward along the guide column (7) through the screw transmission assembly to stretch the viscose yarn until it breaks, and record the test data; excess water generated during the test is collected in the liquid collection tank (27) on the guide seat (13) and flows into the liquid collection box (29) through the guide channel (28).

Images