A textile yarn tensile strength detection device and method

Abstract

The application provides a textile yarn tensile strength detection device and method, and relates to the technical field of yarn tensile detection. The device comprises a rack, a rotating disc and a plurality of detection stations arranged on the rotating disc. The rotating disc is rotatably arranged on the rack, and the detection stations are evenly arranged along the front surface of the rotating disc. Each detection station is provided with a clamping assembly and a detection assembly. The rack is provided with a first driving member for driving the rotating disc to rotate around its axis and synchronously winding the yarn onto each detection station during rotation. The device further comprises a second driving member for simultaneously driving all detection rods to move so that the yarn is stressed to reach its breaking threshold and the detection result of whether the yarn breaks is obtained. The application does not need to pre-cut the yarn to a fixed length, and can complete the continuous test of multiple samples at one time, thereby realizing efficient and continuous detection of the whole roll of yarn.

Description

A device and method for testing the tensile strength of textile yarns Technical Field

[0001] This invention relates to the field of yarn tensile testing technology, and more specifically, to a device and method for testing the tensile strength of textile yarns. Background Technology

[0002] Currently, the textile industry has increasingly higher requirements for the stability and consistency of yarn quality. Yarn tensile strength, as a crucial indicator for evaluating its mechanical properties and reliability, directly affects the smoothness of subsequent weaving and knitting processes. Insufficient yarn strength makes it highly susceptible to breakage during high-speed weaving or under conditions of significant tension fluctuations, impacting product quality and potentially causing equipment downtime, material waste, and increased production costs. Therefore, accurate and consistent tensile strength testing of yarn is a key component of textile companies' quality control systems, effectively filtering out substandard batches and ensuring production continuity and product consistency.

[0003] However, in existing testing methods, yarn tensile testing generally relies on manual operation. Inspectors must first cut a section of yarn sample and then manually install it into the fixture for a single tensile test. Each test requires repeating the cutting, clamping, and calibration steps, resulting in low testing efficiency, high labor intensity, and human variations in sample handling and clamping posture, affecting the repeatability and reliability of the test results. Furthermore, traditional manual sampling methods are insufficient to meet the needs of continuous, multi-batch, rapid testing. Summary of the Invention

[0004] The purpose of this invention is to provide a device and method for testing the tensile strength of textile yarns, which does not require the yarn to be pre-cut to a fixed length and can complete the continuous testing of multiple samples at one time, thereby achieving efficient and continuous testing of the entire roll of yarn.

[0005] Firstly, the present invention is achieved through the following technical solution:

[0006] A device for testing the tensile strength of textile yarns, comprising:

[0007] The frame, the rotary table, and multiple inspection stations set on the rotary table;

[0008] The rotary disk is rotatably mounted on the frame. The inspection stations are evenly arranged circumferentially along the front of the rotary disk. Each inspection station is equipped with a clamping assembly and an inspection assembly. A first driving member is provided on the frame. The first driving member is used to drive the rotary disk to rotate around its axis and simultaneously wind the yarn sequentially onto each inspection station during the rotation.

[0009] The clamping assembly is used to clamp and fix the two ends of the yarn wound on each of the detection stations;

[0010] The detection component includes a detection rod slidably disposed on the rotating disk, the detection rod being used to apply tension to the yarn after the clamping component has fixed the yarn;

[0011] It also includes a second driving member, which is used to simultaneously drive all the detection rods to move so that the yarn is subjected to force up to its breaking threshold, and thereby obtain a detection result as to whether the yarn has broken.

[0012] Furthermore, the second driving component includes a driving disk and a second driving element. The driving disk has a plurality of lifting blocks evenly distributed along its outer periphery. The distance from the center of the driving disk to the outer wall of each lifting block gradually increases in the circumferential direction. One end of the detection rod is slidably abutted against the outer wall of the lifting block, and the other end is supported on the yarn. The second driving element is disposed on the rotating disk and is used to drive the rotating disk to rotate, thereby moving all the detection rods to a position away from the center of the driving disk.

[0013] Furthermore, the detection rod is provided with a reset member, which is used to reset the detection rod after it moves away from the center of the drive disk and keep it abutting against the outer wall of the lifting block;

[0014] And / or, a guide rod is provided between adjacent testing stations, the guide rod is fixedly mounted on the rotating disk, and a guide wheel is provided on the guide rod for guiding the yarn.

[0015] Furthermore, the detection assembly also includes an electronic tensile gauge, the detection rod includes a first rod body and a second rod body, the electronic tensile gauge is disposed between the first rod body and the second rod body, the end of the first rod body is provided with a slot for engaging yarn, a first ring body is coaxially fixed on the rotating disk, and the second rod body slides through the first ring body;

[0016] And / or, the first driving component includes a worm gear, a worm, and a drive motor. The worm gear is coaxially fixed on the shaft of the rotating disk, the worm is rotatably connected to the frame, the worm gear meshes with the worm, and the output shaft of the drive motor is coaxially fixedly connected to the worm.

[0017] Furthermore, the clamping assembly includes clamping rods and a third driving member. Each clamping rod is arranged along the yarn path wound to each detection station. Outer clamping blocks are fixedly provided at both ends of the clamping rods. Inner clamping blocks corresponding to the outer clamping blocks are fixedly provided on the rotating disk. The third driving member is used to simultaneously drive the clamping rods to clamp and fix the yarn.

[0018] Furthermore, the third driving component includes a driving ring, guide blocks, and a third driving element. The driving ring is disposed on the back side of the rotating disk. A connecting rod is fixedly disposed on the clamping rod. The connecting rod slides through the rotating disk. One end of the connecting rod away from the clamping rod is fixed to the driving ring. Multiple guide blocks are disposed circumferentially along the back side of the rotating disk. Each guide block has an abutting inclined surface. The abutting inclined surface abuts against the driving ring. The guide block can move radially from the rotating disk under the action of the third driving element, so that the driving ring moves axially along the rotating disk under the action of the abutting inclined surface.

[0019] Furthermore, the third driving component includes a driving cylinder, a connecting ring, a rotating ring, and a connecting rope. The driving cylinder is fixedly mounted on the frame, the connecting ring is fixedly connected to the piston rod of the driving cylinder, the connecting ring is rotatably engaged with the rotating ring and coaxially arranged with the rotating disk, a limit ring is fixedly mounted on the rotating disk, the connecting rope corresponds one-to-one with the guide block, one end of the connecting rope is fixedly connected to the guide block, and the other end slides through the limit ring and is fixedly connected to the rotating ring.

[0020] Furthermore, the frame is provided with a pay-off frame and a support. A pay-off roller is rotatably mounted on the pay-off frame. A fixed seat and a movable seat are provided on the support. The yarn wound on the pay-off roller passes through the fixed seat and the movable seat. Both the fixed seat and the movable seat are threadedly connected with abutment bolts for fixing the yarn. A locking seat is fixedly mounted on the rotating disk. Abutment bolt for fixing the first end of the yarn is threadedly connected to the locking seat. A cutting assembly for cutting off the second end of the yarn is provided between the fixed seat and the movable seat.

[0021] Furthermore, the cutting assembly includes a cutting cylinder, a cutting head, and a drive plate. The cutting cylinder is fixedly connected to the bracket, and the bracket has an arc-shaped groove. The center of the arc-shaped groove coincides with the center of the rotating disk. A slider is slidably engaged in the arc-shaped groove, and the slider is fixedly connected to the movable seat. The cutting head is fixedly connected to the piston rod of the cutting cylinder, and the drive plate is fixedly connected to the cutting head and can move with the cutting head to push the movable seat away from the bracket after the yarn is cut.

[0022] Secondly, the present invention is achieved through the following technical solution:

[0023] A testing method for a textile yarn tensile strength testing device, using the textile yarn tensile strength testing device described above, includes the following steps:

[0024] S1. Device preparation and sample delivery: Place the whole roll of yarn to be tested on the machine frame, start the first drive unit to make the rotating disk rotate around the axis, and at the same time, wind the yarn along the predetermined path to each testing station in sequence; after winding into place, use the clamping assembly to clamp and fix the two ends of the yarn at each testing station to ensure that the yarn at each station is in the specified pre-tight state, and complete the sample delivery and initial fixation.

[0025] S2. Synchronous Loading and Fracture Judgment: The second driving component is activated to make all the detection rods move outward synchronously at a uniform speed or a preset loading curve, applying tensile tension to the yarn at each detection station; the force-displacement data of each station is collected in real time, and the force value is compared with the set fracture threshold: if no fracture occurs before reaching the fracture threshold, it is judged as "qualified"; if fracture occurs, it is judged as "unqualified", and the fracture force is recorded.

[0026] S3. Result storage and cyclic detection: Store the judgment results and stress data of each detection station into the detection record and mark the non-conforming items according to the preset rules; after the current detection is completed, control the rotary disk to continue rotating, use the first driving component to wind the new yarn segment to each detection station, repeat S1-S3 to realize the continuous detection of the whole roll of yarn until the whole roll detection is completed or the predetermined termination condition is reached.

[0027] The technical solution of the present invention has at least the following advantages and beneficial effects:

[0028] 1. This invention utilizes a rotating disk that can rotate around an axis, with multiple testing stations evenly arranged around its circumference. This allows the entire roll of yarn to be sequentially wound around each station under the drive of a first driving component, achieving continuous sample feeding. Compared to the traditional method requiring manual segmented cutting and sequential clamping, this device automatically completes yarn segmentation, fixing, and station arrangement, significantly reducing manual intervention and improving the consistency and stability of the testing cycle. Through parallel testing at multiple stations, continuous sampling and testing of the entire roll of yarn can be achieved, effectively improving testing efficiency and meeting the high-throughput quality monitoring needs of textile production.

[0029] 2. This invention employs sliding detection rods, with a second driving component synchronously driving all detection rods, enabling multiple stations to simultaneously apply tensile force under the same loading conditions. Synchronous loading not only reduces force deviations between different stations and improves the comparability of test results, but also accurately determines whether each yarn segment breaks before reaching a set breaking threshold, thus automatically determining the yarn's qualification. The unified loading curve and consistent clamping state achieved through this structure significantly reduce errors caused by human operation, improving the reliability and repeatability of yarn tensile strength testing. Attached Figure Description

[0030] Figure 1 is a schematic diagram of the overall structure of a textile yarn tensile strength testing device provided by the present invention.

[0031] Figure 2 is an enlarged view of part A in Figure 1;

[0032] Figure 3 is an enlarged view of part B in Figure 1;

[0033] Figure 4 is an enlarged view of part C in Figure 1;

[0034] Figure 5 is a schematic diagram of the back structure of a textile yarn tensile strength testing device according to the present invention.

[0035] Figure 6 is an exploded view of the clamping assembly of the present invention;

[0036] Figure 7 is a cross-sectional view of the connecting ring and rotating ring of the present invention;

[0037] Figure 8 is a structural schematic diagram of the second driving component and the first driving component of the present invention.

[0038] Figure 9 is a schematic diagram of the present invention, which aims to show the structure of the movable seat disengaging from the arc groove and moving upward with the rotation of the rotating disk after the yarn is cut.

[0039] Reference numerals: 100-Frame, 110-Base plate, 120-Tripod, 130-First driving component, 131-Worm gear, 132-Worm, 133-Drive motor, 134-Cover, 200-Rotating disk, 201-Shaft, 202-Positioning groove, 203-Anti-deviation ring, 210-Detection station, 220-Guide rod, 221-Guide wheel, 230-First ring body, 232-Second ring body, 240-Inner clamping block, 250-Limiting ring, 300-Clamping assembly, 310-Clamping rod, 311-Outer clamping block, 320-Third driving component, 321-Drive ring, 3211-Connecting rod, 32111-First spring, 322-Guide block, 3221-Abutting inclined surface, 323-Third driving component, 3231-Drive cylinder, 3232-Connecting... 3233-Rotating ring, 3234-Connecting rope, 400-Detection component, 410-Detection rod, 411-First rod body, 412-Second rod body, 420-Electronic tension gauge, 500-Second driving component, 510-Drive disc, 511-Lifting block, 520-Second driving component, 521-Rack, 522-Gear, 523-Second cylinder, 600-Reset component, 610-Magnet, 620-Reset plate, 621-Second spring, 700-Paying frame, 701-Paying roller, 710-Bracket, 7101-Arc groove, 7102-Slider, 711-Fixed seat, 712-Modible seat, 713-Abutting bolt, 800-Locking seat, 900-Cutting component, 910-Cutting cylinder, 920-Cutting head, 930-Drive plate. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0041] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0042] Example 1:

[0043] The following description, in conjunction with specific embodiments, refers to Figures 1-9. A textile yarn tensile strength testing device includes a frame 100, a rotating disk 200, and multiple testing stations 210 disposed on the rotating disk 200. The frame 100 consists of a base plate 110 and a pair of triangular frames 120 fixed on the base plate 110. The base plate 110 can be made of steel plate or aluminum alloy plate according to load-bearing requirements to ensure overall stability. The rotating disk 200 is rotatably mounted on the frame 100 via a shaft 201. The shaft 201 can be made of high-strength shaft steel or self-lubricating material according to accuracy requirements. The testing stations 210 are evenly arranged along the circumference of the front surface of the rotating disk 200. In this embodiment, the number of testing stations 210 is 8, but the specific number is not limited and can be adjusted according to actual testing capacity requirements.

[0044] Each testing station 210 is equipped with a clamping assembly 300 and a testing assembly 400. A first driving member 130 is mounted on the frame 100. The first driving member 130 drives the rotating disk 200 to rotate around its axis, and simultaneously winds the yarn sequentially onto each testing station 210 during rotation, thus achieving continuous sample feeding. The clamping assembly 300 clamps and fixes the two ends of the yarn wound onto each testing station 210 at that station. It should be noted that the "two ends" of the yarn at each testing station 210 refer to the testing section between two relatively fixed locations after the yarn is fixed. This "two ends" is a relative concept used to define the range of the testing section and does not specifically refer to the geometric endpoints of the testing station 210 structure. The testing assembly 400 includes a testing rod 410 slidably mounted on the rotating disk 200. The testing rod 410 applies tension to the yarn after it is fixed by the clamping assembly 300.

[0045] Referring to Figure 8, the second driving member 500 is used to simultaneously drive all detection rods 410 to move, so that the yarn is subjected to force up to its breaking threshold, and thereby obtain a detection result indicating whether the yarn has broken. The second driving member 500 includes a driving disk 510 and a second driving component 520. The driving disk 510 has a plurality of lifting blocks 511 evenly distributed along its outer periphery. The lifting blocks 511 are arranged like inclined petals, and the distance from the center of the driving disk 510 to their outer walls gradually increases circumferentially, thereby forming a controllable lifting trajectory when the driving disk 510 rotates. One end of the detection rod 410 slides against the outer wall of the lifting block 511, and the other end bears the tensile force acting on the yarn. The lifting structure ensures the stability of the loading process.

[0046] In this embodiment, the second driving component 520 adopts the form of a rack 521, a gear 522, and a second cylinder 523. The gear 522 is coaxially fixed on the driving disk 510, the second cylinder 523 is fixedly mounted on the rotating disk 200, and the rack 521 is fixed on the piston rod of the second cylinder 523. The reciprocating motion of the second cylinder 523 drives the rack 521 to move linearly, thereby driving the gear 522 and the driving disk 510 to rotate. This mechanism can be replaced with a servo motor + worm gear mechanism as needed to improve the controllability of the loading curve.

[0047] As an optional embodiment, a guide rod 220 is provided between adjacent testing stations 210. The guide rod 220 is fixedly mounted on the rotating disk 200, and a guide wheel 221 is provided on the guide rod 220. The guide wheel 221 can be made of wear-resistant engineering plastic or a metal wheel with a ball bearing structure. The guide wheel 221 is used to guide the yarn, so that the yarn maintains a stable path during winding, avoids skipping and wear, and improves the reliability of sample delivery.

[0048] Referring to Figure 2, the detection component 400 also includes an electronic tensile gauge 420 for real-time monitoring and setting tensile force thresholds. Since the electronic tensile gauge 420 is a mature existing device, it will not be described in detail here. The detection rod 410 includes a first rod body 411 and a second rod body 412. The electronic tensile gauge 420 is positioned between the first rod body 411 and the second rod body 412, and can detect the instantaneous tensile force applied to the yarn by the detection rod 410 in real time, transmitting the measured data to the control module or central processing unit. During the specific detection process, the system can display the tensile force change curves of each detection station 210 in real time on the computer and allows for the preset tensile force threshold. When the tensile force at a certain station exceeds the set threshold or a breakage occurs, the system can automatically trigger an alarm. The electronic tensile gauge 420 can be a strain gauge sensor, a miniature tensile sensor, or other highly sensitive tensile force detection elements to adapt to the detection needs of different yarn materials and different tensile ranges.

[0049] To facilitate operation and enhance the intuitiveness of the testing process, the electronic tensile gauge 420 can be electrically connected to a display screen located on the front of the frame 100. This screen displays real-time information such as tensile data, breaking threshold, loading progress, and breaking status at each testing station 210, allowing the operator to easily monitor the testing process. Simultaneously, the control module can be equipped with a pressure threshold adjustment function, enabling the operator to pre-set the breaking threshold for different yarn specifications, thus improving the flexibility and applicability of the testing.

[0050] The distal end of the first rod 411 has a slot (not shown in the figure) for securing the yarn. The slot opens along the side away from the center of the rotating disk 200, effectively preventing the yarn from slipping during loading and ensuring that the tensile force is stably applied along the yarn axis. A first ring 230 is coaxially fixed on the rotating disk 200, and the second rod 412 can slide through the first ring 230, allowing the detection rod 410 to maintain a stable linear reciprocating motion path during loading, ensuring smooth application of tensile force without off-center loading, thereby improving the accuracy and repeatability of the detection results. In addition, to reduce friction interference, a sliding bushing or rolling bearing structure can be provided in the first ring 230 to make the sliding process of the detection rod 410 smoother and further improve the overall detection accuracy.

[0051] In some embodiments, a reset member 600 is provided on the detection rod 410. The reset member 600 is used to reset the detection rod 410 after it moves away from the center of the drive disk 510 and keep it abutting against the outer wall of the lifting block 511. In this embodiment, the reset member 600 includes a reset piece 620 and a second spring 621. The reset piece 620 is fixed on the second rod body 412, and the second spring 621 is sleeved on the second rod body 412. One end of the second spring 621 is connected to the reset piece 620, and the other end is connected to the second ring body 232, so that the detection rod 410 is automatically reset by elastic force after loading is completed. As an alternative embodiment, the reset member 600 can also adopt a magnet 610 structure, that is, a magnet 610 is embedded in the lifting block 511, and the second rod body 412 is made of a magnetic material that can attract magnetic particles, so that the magnetic force replaces the spring structure to achieve the fitting and reset function (shown in the figure).

[0052] As an optional embodiment, the first driving component 130 includes a worm gear 131, a worm 132, and a drive motor 133. The worm gear 131 is coaxially fixed to the shaft 201 of the rotating disk 200, and the worm 132 is rotatably connected to the frame 100. The worm gear 131 meshes with the worm 132, and the output shaft of the drive motor 133 is coaxially connected to the worm 132. To prevent the worm gear 131 and worm 132 from being exposed, which could lead to wear or safety hazards, a cover 134 is provided on them. The drive motor 133 can be fixed inside or outside the cover 134 depending on the spatial arrangement.

[0053] Furthermore, the clamping assembly 300 includes clamping rods 310 and a third driving member 320. The clamping rods 310 have a plate-like structure, with each clamping rod 310 arranged correspondingly along the yarn winding path. Outer clamping blocks 311 are fixed to both ends of the clamping rods 310, and the rotating disk 200 is provided with inner clamping blocks 240 corresponding to the outer clamping blocks 311. The inner clamping blocks 240 and outer clamping blocks 311 may have textured surfaces or rubber pads to increase friction and improve the effective clamping force. The third driving member 320 is used to simultaneously drive the clamping rods 310 to achieve synchronous clamping and fixing of yarns at all workstations.

[0054] Referring to Figures 1-8, the third driving component 320 includes a driving ring 321, guide blocks 322, and a third driving component 323. The driving ring 321 is mounted on the back of the rotating disk 200. A pair of symmetrically arranged connecting rods 3211 are fixed on the clamping rod 310. A first spring 32111 is sleeved on the connecting rod 3211, located on the front of the rotating disk 200. Its two ends are connected to the clamping rod 310 and the rotating disk 200 respectively, giving the clamping rod 310 an elastic return capability. The connecting rod 3211 slides through the rotating disk 200, with its end away from the clamping rod 310 fixed to the driving ring 321. Multiple guide blocks 322 are arranged circumferentially along the back of the rotating disk 200. Each guide block 322 has an abutting inclined surface 3221, which contacts the driving ring 321. Under the action of the third driving component 323, the guide blocks 322 slide radially, thereby pushing the driving ring 321 to move axially. To restrict the movement of the guide block 322, multiple positioning grooves 202 are radially formed on the back of the rotating disk 200. In this embodiment, the positioning groove 202 has a dovetail-shaped cross section, but it can also be replaced with a T-shaped one.

[0055] Specifically, the third driving component 323 includes a driving cylinder 3231, a connecting ring 3232, a rotating ring 3233, and a connecting rope 3234. The driving cylinders 3231 are symmetrically arranged in pairs on the tripod 120, with the specific number depending on requirements. The connecting ring 3232 is fixed to the piston rod of the driving cylinder 3231, and the rotating ring 3233 is rotatably engaged with the connecting ring 3232 and coaxially arranged with the rotating disk 200. In this embodiment, the connecting ring 3232 has a T-shaped cross-section and is engaged with the rotating ring 3233, so that when the rotating disk 200 rotates, the rotating ring 3233 can rotate synchronously, thereby preventing accidental pulling of the connecting rope 3234. An anti-deviation ring 203 is coaxially fixed on the rotating disk 200, located inside the rotating ring to limit the position of the rotating ring; a limiting ring 250 is also provided on the rotating disk 200 to limit the path of the connecting rope 3234. One end of each connecting rope 3234 is fixedly connected to the guide block 322, and the other end slides through the limiting ring 250 and is fixed to the rotating ring 3233.

[0056] Referring to Figures 1 and 9, a pay-off frame 700 and a support 710 are mounted on the base plate 110. The pay-off frame 700 has a rotatable pay-off roller 701 for holding the entire roll of yarn. The support 710 has a fixed seat 711 and a movable seat 712, through which the yarn on the pay-off roller 701 passes. Both the fixed seat 711 and the movable seat 712 are threadedly connected to abutment bolts 713 for fixing or releasing yarn tension. A locking seat 800 is fixed on the rotating disk 200, with abutment bolts 713 threadedly connected to it. The abutment bolts 713 are used to fix the first end of the yarn, which is the movable end of the yarn, i.e., the initial part of the yarn released from the pay-off roller 701. The first end will be fixed at the initial detection station 210 among multiple detection stations 210. A cutting assembly 900 is installed on the bracket 710 at a position between the fixed seat 711 and the movable seat 712. The cutting assembly 900 is used to cut the second end of the yarn. The second end is the break point of the last section of yarn after the yarn has been wound around multiple inspection stations 210, so as to form a broken yarn.

[0057] Referring to Figures 3 and 9, the cutting assembly 900 includes a cutting cylinder 910, a cutting head 920, and a drive plate 930. The cutting cylinder 910 is fixed on a bracket 710, on which an arc-shaped groove 7101 concentric with the center of the rotating disk 200 is machined. This arc-shaped groove 7101 not only limits the movement trajectory of the movable seat 712, but also allows the movable seat 712 to move slightly upward during the yarn winding process of the rotating disk 200 through the pushing action of the drive plate 930. This prevents the rotating disk 200 from being pulled and jammed due to yarn tension during yarn winding, thus improving the continuous operation stability of the entire machine.

[0058] To facilitate quick yarn fixation after unwinding, the abutment bolts 713 on the fixed seat 711 and movable seat 712 preferably employ a screw head structure with anti-slip patterns, allowing operators to quickly complete the tightening operation in confined spaces and improving yarn fixation efficiency. Furthermore, when the movable seat 712 disengages from the arc-shaped groove 7101, the yarn remains naturally straight due to the loss of groove wall support and its own weight and tension. This ensures that the yarn at each inspection station 210 maintains the same tension and enters the breakage detection process. Thus, after the rotary table 200 rotates to the last inspection station 210, the clamping assembly 300 can automatically clamp and fix the yarn at all inspection stations 210.

[0059] The slide block 7102 is slidably engaged within the arc-shaped groove 7101. The slide block 7102 is fixedly connected to the movable seat 712, allowing the movable seat 712 to slide stably along the arc-shaped groove 7101. A rubber pad is provided on the outer side of the slide block 7102 to increase the coefficient of friction between the slide block 7102 and the arc-shaped groove 7101, making the fit during cutting smoother and more stable. This effectively avoids vibration or jamming caused by direct friction between metal parts, thereby improving the smoothness of the cutting action.

[0060] The cutting head 920 is fixedly connected to the piston rod of the cutting cylinder 910 and reciprocates with the piston rod. The drive plate 930 is fixedly connected to the cutting head 920, so that after the cutting head completes the cutting action on the yarn, the drive plate 930 can continue to move forward and automatically push the movable seat 712 to disengage from the bracket 710, realizing the integrated operation of cutting and separating actions, reducing human intervention and improving the automation level of the system.

[0061] Example 2:

[0062] This embodiment also provides a testing method for a textile yarn tensile strength testing device, which uses the textile yarn tensile strength testing device described above and includes the following steps:

[0063] S1. Device preparation and sample delivery: Install the whole roll of yarn to be tested on the base plate 110, start the first drive component 130 to make the rotating disk 200 rotate around the axis, and at the same time, wind the yarn along the predetermined path to each detection station 210 in sequence; after the yarn is wound in place, use the clamping component 300 to clamp and fix the two ends of the yarn at each detection station 210 to ensure that the yarn at each station is in the specified pre-tight state, and complete the sample delivery and initial fixation.

[0064] S2. Synchronous Loading and Fracture Judgment: The second drive unit 500 is activated, causing all detection rods 410 to move outward synchronously at a uniform speed or a preset loading curve, applying tensile tension to the yarn at each detection station 210; force-displacement data of each station are collected in real time, and the force value is compared with the set fracture threshold: if no fracture occurs before reaching the fracture threshold, it is judged as "qualified"; if fracture occurs, it is judged as "unqualified", and the fracture force is recorded.

[0065] S3. Result storage and cyclic detection: Store the judgment results and stress data of each detection station 210 into the detection record and mark the non-conforming items according to the preset rules; after the current detection is completed, control the rotary disk 200 to continue rotating, and use the first driving component 130 to wind the new yarn segment to each detection station 210, repeat S1-S3 to realize continuous detection of the whole roll of yarn until the whole roll detection is completed or the predetermined termination condition is reached.

[0066] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A device for testing the tensile strength of textile yarns, characterized in that, include: The machine includes a frame (100), a rotating disk (200), and multiple inspection stations (210) disposed on the rotating disk (200). The rotating disk (200) is rotatably disposed on the machine frame (100). The inspection stations (210) are evenly arranged circumferentially along the front surface of the rotating disk (200). Each inspection station (210) is provided with a clamping assembly (300) and an inspection assembly (400). A first driving member (130) is disposed on the machine frame (100). The first driving member (130) is used to drive the rotating disk (200) to rotate around its axis and simultaneously inspect the rotating disk during the rotation. The yarn is sequentially wound onto each of the detection stations (210); wherein: the clamping assembly (300) is used to clamp and fix the two ends of the yarn wound on each of the detection stations (210); the detection assembly (400) includes a detection rod (410) slidably disposed on the rotating disk (200), the detection rod (410) being used to apply tension to the yarn after the clamping assembly (300) fixes the yarn; it also includes a second driving member (500), the second driving member (500) being used to simultaneously drive all the detection rods (410) to move, so that the yarn is subjected to force to reach its breaking threshold, and thereby obtain the yarn's strength. The detection result indicates whether a breakage has occurred; the second driving component (500) includes a driving disk (510) and a second driving component (520). The driving disk (510) has a plurality of lifting blocks (511) evenly distributed along its outer periphery. The distance from the center of the driving disk (510) to the outer wall of each lifting block (511) gradually increases along the circumferential direction. One end of the detection rod (410) slides against the outer wall of the lifting block (511), and the other end is supported on the yarn. The second driving component (520) is disposed on the rotating disk (200) and is used to drive the rotating disk (200) to rotate, thereby driving all the detection rods to rotate. The rod (410) moves away from the center of the drive disk (510); a reset member (600) is provided on the detection rod (410), which is used to reset the detection rod (410) after it moves away from the center of the drive disk (510) and keep it abutting against the outer wall of the lifting block (511); a guide rod (220) is provided between adjacent detection stations (210), the guide rod (220) is fixedly provided on the rotating disk (200), and a guide wheel (221) is provided on the guide rod (220), which is used to guide the yarn;The detection assembly (400) further includes an electronic tensile gauge (420). The detection rod (410) includes a first rod body (411) and a second rod body (412). The electronic tensile gauge (420) is disposed between the first rod body (411) and the second rod body (412). A slot is provided at the end of the first rod body (411) for engaging yarn. A first ring body (230) is coaxially fixed on the rotating disk (200), and the second rod body (412) slides through it. On the first ring body (230); the first driving component (130) includes a worm gear (131), a worm (132), and a drive motor (133). The worm gear (131) is coaxially fixedly mounted on the shaft (201) of the rotating disk (200). The worm (132) is rotatably connected to the frame (100). The worm gear (131) and the worm (132) mesh with each other. The output shaft of the drive motor (133) is coaxially fixedly connected to the worm (132).

2. The textile yarn tensile strength testing device according to claim 1, characterized in that, The clamping assembly (300) includes a clamping rod (310) and a third driving member (320). Each clamping rod (310) is arranged along the yarn path wound to each detection station (210). Outer clamping blocks (311) are fixedly provided at both ends of the clamping rod (310). An inner clamping block (240) corresponding to the outer clamping block (311) is fixedly provided on the rotating disk (200). The third driving member (320) is used to simultaneously drive the clamping rod (310) to clamp and fix the yarn.

3. The textile yarn tensile strength testing device according to claim 2, characterized in that, The third driving component (320) includes a driving ring (321), a guide block (322), and a third driving component (323). The driving ring (321) is disposed on the back of the rotating disk (200). A connecting rod (3211) is fixedly disposed on the clamping rod (310). The connecting rod (3211) slides through the rotating disk (200). One end of the connecting rod (3211) away from the clamping rod (310) is fixed to the driving ring (321). The guide block (322) 322) A plurality of guide blocks (322) are arranged circumferentially along the back side of the rotating disk (200). Each guide block (322) has an abutting inclined surface (3221) that abuts against the drive ring (321). The guide block (322) can move radially from the rotating disk (200) under the action of the third drive component (323) so that the drive ring (321) moves along the axial direction of the rotating disk (200) under the action of the abutting inclined surface (3221).

4. The textile yarn tensile strength testing device according to claim 3, characterized in that, The third driving component (323) includes a driving cylinder (3231), a connecting ring (3232), a rotating ring (3233), and a connecting rope (3234). The driving cylinder (3231) is fixedly mounted on the frame (100). The connecting ring (3232) is fixedly connected to the piston rod of the driving cylinder (3231). The connecting ring (3232) is rotatably engaged with the rotating ring (3233) and coaxially mounted with the rotating disk (200). A limit ring (250) is fixedly mounted on the rotating disk (200). The connecting rope (3234) corresponds one-to-one with the guide block (322). One end of the connecting rope (3234) is fixedly connected to the guide block (322), and the other end slides through the limit ring (250) and is fixedly connected to the rotating ring (3233).

5. The textile yarn tensile strength testing device according to claim 1, characterized in that, The frame (100) is provided with a pay-off frame (700) and a support (710). A pay-off roller (701) is rotatably mounted on the pay-off frame (700). A fixed seat (711) and a movable seat (712) are provided on the support (710). The yarn wound on the pay-off roller (701) passes through the fixed seat (711) and the movable seat (712). Both the fixed seat (711) and the movable seat (712) are threaded with abutment bolts (713) for fixing the yarn. A locking seat (800) is fixedly mounted on the rotating disk (200). Abutment bolt (713) for fixing the first end of the yarn is threadedly connected to the locking seat (800). A cutting assembly (900) for cutting off the second end of the yarn is provided between the fixed seat (711) and the movable seat (712).

6. The textile yarn tensile strength testing device according to claim 5, characterized in that, The cutting assembly (900) includes a cutting cylinder (910), a cutting head (920), and a drive plate (930). The cutting cylinder (910) is fixedly connected to the bracket (710). The bracket (710) has an arc-shaped groove (7101) with the center of the arc-shaped groove (7101) coinciding with the center of the rotating disk (200). A slider (7102) is slidably engaged in the arc-shaped groove (7101). The slider (7102) is fixedly connected to the movable seat (712). The cutting head (920) is fixedly connected to the piston rod of the cutting cylinder (910). The drive plate (930) is fixedly connected to the cutting head (920) and can move with the cutting head (920) to push the movable seat (712) away from the bracket (710) after the yarn is cut.

7. A testing method for a textile yarn tensile strength testing device, using the textile yarn tensile strength testing device according to any one of claims 1-6, characterized in that, Includes the following steps: S1. Device preparation and sample delivery: Place the whole roll of yarn to be tested on the frame (100), start the first drive unit (130) to make the rotating disk (200) rotate around the axis, and at the same time, wind the yarn along the predetermined path to each detection station (210); after winding into place, use the clamping assembly (300) to clamp and fix the two ends of the yarn at each detection station (210) to ensure that the yarn at each station is in the specified pre-tight state, and complete the sample delivery and initial fixation; S2. Synchronous loading and breakage judgment: Start the second drive unit (500) to make all the detection rods (410) move outward synchronously at a uniform speed or a preset loading curve, and apply tension to the yarn at each detection station (210). Tension; Real-time acquisition of force-displacement data at each station, and comparison of force values ​​with the set fracture threshold: If no fracture occurs before reaching the fracture threshold, it is judged as "qualified"; If fracture occurs, it is judged as "unqualified", and the fracture force is recorded; S3, Result storage and loop detection: The judgment results and stress data of each detection station (210) are stored in the detection record and unqualified items are marked according to the preset rules; After the current detection is completed, the rotary disk (200) is controlled to continue rotating, and the first driving component (130) is used to wind new yarn segments to each detection station (210), and S1-S3 are repeated to realize continuous detection of the whole roll of yarn until the whole roll detection is completed or the predetermined termination condition is reached.

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