Yarn strength detection device convenient for continuous detection

Abstract

The invention relates to the technical field of textile detection, in particular to a yarn strength detection device convenient for continuous detection, which comprises an unwinding wheel, a moisture content regulation and control mechanism and a stretching mechanism, the water content regulation and control mechanism is positioned between the stretching mechanism and the unwinding wheel; a clamping assembly is arranged on the stretching mechanism, and a fixing assembly is arranged between the moisture content regulation and control mechanism and the stretching mechanism; the moisture content of the yarn is rapidly adjusted through the moisture content adjusting and controlling mechanism, so that the strength of the yarn under different humidity is rapidly obtained, and strength pre-screening of the yarn is achieved. Long-time presetting and high energy consumption of a large constant humidity box are avoided, and yarns with obviously substandard strength can be quickly identified and removed, so that the detection flux is greatly improved, and the equipment and operation cost is reduced.

Description

Technical Field

[0001] The present invention application relates to the technical field of textile detection, and specifically relates to a yarn strength detection device facilitating continuous detection. Background Art

[0002] The tensile property of yarn is a key index for evaluating its quality and applicability, and the moisture content of yarn has a decisive influence on its tensile modulus and breaking strength. Whether it is natural fiber (such as cotton, linen, regenerated cellulose) or some synthetic fibers (such as nylon, polyester) with obvious performance fluctuations under high humidity conditions, they all show a trend of decreasing strength with the increase of moisture content. To eliminate the interference of environmental humidity on the test results, the current international standards, such as ISO2062 "Test Method for Tensile Strength of Yarn", stipulate that all yarns must be balanced for at least 24 hours under the conditions of temperature 20±2°C and humidity 65±2% before testing, and then the tensile strength is measured after ensuring uniform distribution of moisture inside and on the surface of the yarn. Although this "constant temperature and humidity long balance" process can provide accurate and reliable data, it takes a lot of time and relies on expensive humidity cabinets and environmental control systems, and it is difficult to meet the rapid quality control requirements for a large number of yarns in textile production.

[0003] In the prior art, such as a spinning yarn strength testing device disclosed in Chinese Patent Grant Publication No. CN118654980B, by stacking a temperature and humidity environment simulation box on the spinning yarn outlet device and setting a multi-station wire pulling detection component in the box, parallel strength testing of different line segments of the same yarn under various environmental conditions is realized. Although this device can improve the detection efficiency to a certain extent and expand the data dimension, it still relies on the long-time pre-conditioning and temperature maintenance of a large-volume simulation box, and its equipment scale and operation cost are relatively high. It is difficult to be directly integrated into the first-line production line, and it is also difficult to quickly eliminate low-strength batches. Summary of the Invention

[0004] In view of the above problems, a yarn strength detection device facilitating continuous detection is provided. In this application, a moisture content regulation mechanism is used to quickly adjust the moisture content of the yarn, so as to quickly obtain the strength of the yarn under different humidities, thereby realizing the strength pre-screening of the yarn. It eliminates the long-time pre-conditioning and high energy consumption of a large humidity cabinet, can quickly identify and eliminate yarns with significantly substandard strength, thereby greatly improving the detection throughput and reducing the equipment and operation costs.

[0005] In order to solve the problems of the prior art, the present invention provides a yarn strength detection device that is convenient for continuous detection, including a reeling wheel for placing the yarn to be detected, a moisture content control mechanism for adjusting the moisture content of the yarn, and a stretching mechanism that can slide in the horizontal direction; the moisture content control mechanism is located between the stretching mechanism and the reeling wheel; a clamping assembly for clamping the end of the yarn is provided on the stretching mechanism, and the yarn is placed on the clamping assembly after being pulled out from the reeling wheel through the moisture content control mechanism; a fixing assembly for clamping the yarn pulled out to a preset length is provided between the moisture content control mechanism and the stretching mechanism; the sliding of the stretching mechanism drives the clamping assembly to apply a tensile force to the yarn until the yarn breaks to obtain yarn strength data.

[0006] Preferably, the clamping assembly includes a mounting frame fixedly connected to the stretching mechanism, a positioning block is provided on the top of the mounting frame, and a clamping block capable of sliding in a vertical direction is provided below the positioning block, and the clamping block is driven by an electromagnetic drive.

[0007] Preferably, a mounting seat that can extend in the horizontal direction is provided below the stretching mechanism, and a guide member for guiding the end of the yarn between the positioning block and the clamping block is provided on one end of the mounting seat close to the fixed assembly, and a through hole for the yarn to pass through is provided on the guide member.

[0008] Preferably, the guide member is slidably matched with the mounting seat, and the sliding direction of the guide member is consistent with that of the stretching mechanism. An elastic member is provided between the guide member and the mounting seat. The bottom surface of the guide member is inclined, and a limit block matching the mounting frame is provided on the top of the guide member.

[0009] Preferably, a first guide wheel for guiding the yarn to the guide member is provided below the fixing assembly, and the fixing assembly includes a clamping wheel provided on the first guide wheel and capable of sliding along the axial direction of the first guide wheel.

[0010] Preferably, the moisture content regulating mechanism includes a heating box, in which infrared lamps for heating the yarn are arranged in parallel along the yarn pulling path, and first thread holes for the yarn to pass through are respectively provided on both sides of the heating box.

[0011] Preferably, the moisture content control mechanism also includes a humidifying box, which is arranged between the heating box and the unwinding wheel. A plurality of spray heads are evenly distributed along the yarn traction path in the humidifying box, and second wire holes for the yarn to pass through and out are respectively provided on both sides of the humidifying box.

[0012] Preferably, the moisture content regulating mechanism further includes a humidity detector disposed between the heating box and the fixing assembly.

[0013] Preferably, a lead screw and a slide rail extending along the length direction thereof are arranged on the mounting seat. The stretching mechanism is slidably arranged on the slide rail. The lead screw penetrates through the stretching mechanism and is in threaded cooperation with the stretching mechanism. A second rotary drive motor for driving the lead screw to rotate is further arranged on the mounting seat.

[0014] Preferably, a distance sensor for real-time detecting the distance between the stretching mechanism and the fixing component is further arranged on the stretching mechanism.

[0015] The beneficial effects of the present invention compared with the prior art are as follows: 1. The present invention rapidly adjusts the moisture content of the yarn through the moisture content regulation mechanism to rapidly obtain the strength of the yarn under different humidities, thereby realizing the pre-screening of the strength of the yarn. It eliminates the long-time pre-adjustment and high energy consumption of a large constant humidity box, can rapidly identify and eliminate the yarns with significantly unqualified strength, and only introduces the pre-inspected qualified samples into the standard process for final confirmation, thereby greatly improving the detection throughput, reducing the equipment and operation costs, and providing instant quality feedback and traceability for the production line, meeting both the efficiency requirements of rapid screening and the compliance of the final data.

[0016] 2. Through the cooperation of the guiding member and the stretching mechanism, the present invention effectively solves the problem of re-clamping caused by the breakage and offset of the yarn after breakage. The through hole of the guiding member forms a rigid constraint on the broken yarn, preventing the yarn from curling or skewing due to elastic contraction, keeping the broken end always on the preset path, and reducing the alignment error during re-clamping; enabling the clamping component to accurately align with the constrained broken end of the yarn, eliminating the need for manual adjustment of the yarn position, and improving the continuity of the detection process; this structure realizes the automatic repositioning of the broken yarn, reduces the downtime intervention caused by yarn offset, and ensures the consistency and reliability of the detection data for multiple batches.

[0017] 3. Through the setting of the humidifying box and the spray head, the present invention enables the device to have the ability of two-way moisture content regulation of humidification and drying, can simulate the full-scene humidity gradient from high humidity to dryness, and does not need to sleave the humidity-saturated yarn on the yarn wheel, thereby improving the equipment adaptability and enabling the equipment to directly process the yarn through the humidifying box. Description of the Drawings

[0018] Figure 1 is a schematic three-dimensional structure diagram of a yarn strength detection device facilitating continuous detection Figure 1 .

[0019] Figure 2 is Figure 1 the enlarged view of part A in

[0020] Figure 3 is a schematic three-dimensional structure diagram when the stretching mechanism stretches the yarn in a yarn strength detection device facilitating continuous detection.

[0021] Figure 4 Is Figure 3 An enlarged view of part B in

[0022] Figure 5 Is Figure 3 An enlarged view of part C in

[0023] Figure 6 Is a top view of a yarn strength detection device facilitating continuous detection.

[0024] Figure 7 Is a schematic perspective view of a yarn strength detection device facilitating continuous detection Figure 2 .

[0025] Figure 8 Is Figure 7 An enlarged view of part D in

[0026] Figure 9 Is a schematic perspective view of a stretching mechanism in a yarn strength detection device facilitating continuous detection.

[0027] Figure 10 Is a schematic perspective sectional view of a stretching mechanism in a yarn strength detection device facilitating continuous detection.

[0028] Figure 11 Is a schematic sectional view of a yarn strength detection device facilitating continuous detection and enlarged views of parts thereof.

[0029] Figure 12 Is an exploded view of a fixing component in a yarn strength detection device facilitating continuous detection.

[0030] The reference numerals in the figure are: 1. Unwinding wheel; 11. Yarn; 2. Moisture content regulating mechanism; 21. Heating box; 211. First wire passing hole; 212. Infrared lamp tube; 22. Humidifying box; 221. Spray head; 222. Second wire passing hole; 23. Humidity detector; 3. Stretching mechanism; 31. Clamping component; 311. Mounting rack; 3111. Positioning block; 312. Clamping block; 32. Mounting seat; 321. Guide member; 3211. Through hole; 3212. Elastic member; 3213. Limiting block; 322. Lead screw; 323. Slide rail; 324. Second rotary drive motor; 33. Distance sensor; 4. Fixing component; 41. First guide wheel; 42. Clamping wheel. Specific embodiments

[0031] To further understand the features, technical means, specific purposes and functions achieved by the present invention application, the following further describes the present invention application in detail in conjunction with the accompanying drawings and specific embodiments.

[0032] AsFigures 1 to 3 , Figure 6 , Figure 7 , Figures 9 to 11 As shown in Figures 9 to 11 , a yarn strength detection device for facilitating continuous detection includes an unwinding wheel 1 for placing a yarn 11 to be detected, a moisture content regulation mechanism 2 for adjusting the moisture content of the yarn 11, and a stretching mechanism 3 that can slide horizontally; the moisture content regulation mechanism 2 is located between the stretching mechanism 3 and the unwinding wheel 1; a clamping assembly 31 for clamping the end of the yarn 11 is provided on the stretching mechanism 3, and the yarn 11 is placed on the clamping assembly 31 after passing through the moisture content regulation mechanism 2 after being drawn out from the unwinding wheel 1; a fixing assembly 4 for clamping the yarn 11 drawn out by a preset length is provided between the moisture content regulation mechanism 2 and the stretching mechanism 3; by the sliding of the stretching mechanism 3, the clamping assembly 31 is driven to apply a stretching force to the yarn 11 until the yarn 11 breaks to obtain the yarn strength data of the yarn 11.

[0033] The yarn strength detection device provided by this application is used for rapid pre-inspection. By quickly adjusting the moisture content of the yarn 11, the strength of the yarn 11 under different humidities can be quickly obtained, so as to realize the pre-screening of the strength of the yarn 11. It eliminates the long-time pre-adjustment and high energy consumption of a large constant humidity chamber, can quickly identify and eliminate the yarns 11 with obviously unqualified strength, and only imports the pre-inspection qualified samples into the standard process for final confirmation. Thus, the detection throughput is greatly improved, the equipment and operation costs are reduced, and instant quality feedback and traceability are provided for the production line, which not only meets the efficiency requirements of rapid screening, but also takes into account the compliance of the final data.

[0034] The yarn 11 to be detected is a yarn 11 with saturated humidity. After being drawn out from the unwinding wheel 1, it passes through the moisture content regulation mechanism 2 and the fixing assembly 4 in sequence, and finally is placed on the clamping assembly 31. The moisture content regulation mechanism 2 can adjust the moisture content of the yarn 11 with saturated humidity (such as reducing the moisture content of the yarn 11 by heating, etc.) to make the yarn 11 form different humidity states. By the sliding of the stretching mechanism 3, the clamping assembly 31 is driven to move, so that the yarn 11 can be drawn out until the length of the yarn 11 between the fixing assembly 4 and the clamping assembly 31 meets the preset length required for detection. At this time, the fixing assembly 4 clamps and fixes the yarn 11, and the stretching mechanism 3 continues to slide horizontally towards the side away from the fixing assembly 4, thereby applying a stretching force to the yarn 11 until the yarn 11 breaks, so as to obtain the yarn strength data of the yarn 11 in this humidity state (a force sensing unit for identifying the stretching force is provided on the stretching mechanism 3). By continuously repeating the above steps by the stretching mechanism 3, continuous detection of the yarn 11 can be realized, and the strength of the yarn 11 in different humidity states can be detected.

[0035] Such as Figures 1 to 4 , Figures 9 to 11As shown: The clamping assembly 31 includes a mounting bracket 311 fixedly connected to the stretching mechanism 3. A positioning block 3111 is provided at the top of the mounting bracket 311. Below the positioning block 3111, there is a clamping block 312 that can slide in the vertical direction. The clamping block 312 is driven electromagnetically.

[0036] The positioning block 3111 has a conical structure, and the clamping block 312 has a funnel-shaped structure that matches the positioning block 3111. A magnetic attracting block is provided at the bottom of the clamping block 312, and an electromagnet is provided on the stretching mechanism 3. The mounting bracket 311 includes four guide rods and a fixing plate. The four guide rods are vertically fixedly connected to the stretching mechanism 3, and the fixing plate is fixedly connected to the four guide rods. The positioning block 3111 is provided on the fixing plate, and the clamping block 312 is sleeved on the four guide rods.

[0037] When the electromagnet is activated, the clamping block 312 slides along the axis of the guide rod under the action of electromagnetic force, and the inner wall of the funnel shape gradually fits with the outer wall of the conical positioning block 3111, clamping the yarn 11 through the wedge extrusion effect; when the electromagnetic drive is powered off, the clamping block 312 slides downward under the action of gravity or the reset mechanism and separates from the positioning block 3111, releasing the yarn 11. The on-off control of the electromagnetic drive clamps and releases the clamping block 312, realizing the clamping and releasing of the yarn 11, and cooperating with the horizontal sliding of the stretching mechanism 3 to complete the stretching detection of the yarn 11.

[0038] The matching structure of the conical positioning block 3111 and the funnel-shaped clamping block 312 can generate uniform clamping force through wedge extrusion, avoiding damage to the yarn 11 due to local stress concentration and improving the reliability of the detection data; the electromagnetic drive has the characteristic of fast response speed, adapts to the rapid detection scenario of the yarn 11, can shorten the time interval of the clamping action, and improve the overall detection efficiency; the setting that the clamping block 312 slides in the vertical direction makes the clamping assembly 31 have a compact structure, is convenient to be integrated on the stretching mechanism 3, and saves the device space; in addition, the clamping force of the electromagnetic drive can be accurately controlled by adjusting the current size, can adapt to the clamping requirements of yarns 11 with different thicknesses and materials, and enhances the versatility of the device.

[0039] It should be noted that in order to facilitate the recycling of the yarn 11 after it breaks, a first rotary drive motor can be provided at the top of the mounting frame 311. The positioning block 3111 is rotatably arranged on the mounting frame 311, and the positioning block 3111 is fixedly connected to the output shaft of the first rotary drive motor. The clamping block 312 is rotatably arranged on the stretching mechanism 3. After the clamping block 312 approaches the positioning block 3111 to clamp the yarn 11, the yarn 11 can be wound by rotation to realize the recycling of the yarn 11. Through the above method, continuous detection of multiple sections of the yarn 11 can be achieved, and then the yarn 11 can be uniformly unloaded. It is also possible to directly unload the wound yarn 11 after winding in a single detection. At the same time, the above method is also to improve the accuracy of detection. The detected part of the yarn is wound on the clamping assembly 31 by the winding method.

[0040] As Figures 1 to 4 , Figures 9 to 11 shown in the figure: There is an installation base 32 that can extend horizontally below the stretching mechanism 3. At one end of the installation base 32 close to the fixing component 4, there is a guiding member 321 for guiding the end of the yarn 11 between the positioning block 3111 and the clamping block 312. The guiding member 321 is provided with a through hole 3211 through which the yarn 11 can pass.

[0041] When the yarn 11 breaks during the stretching detection, the two ends of the yarn 11 are prone to shift or curl due to the breaking tension, resulting in difficulty for the clamping assembly 31 to reposition the yarn 11. At this time, the stretching mechanism 3 moves along the length direction of the installation base 32 to the side of the guiding member 321. The guiding member 321 on the installation base 32 forms a physical constraint on the broken yarn 11 through its through hole 3211, so that the broken end of the yarn 11 is limited by the through hole 3211 and remains in a straight state, avoiding the shift caused by elastic contraction (the winding of the unwinding wheel 1 can make the yarn 11 on the guiding member 321 retract a part, so that the length of the yarn 11 on the through hole 3211 is convenient for docking with the clamping assembly 31). When the stretching mechanism 3 moves to the side of the guiding member 321, the positioning block 3111 and the clamping block 312 of the clamping assembly 31 can align with the broken end of the yarn 11 in the through hole 3211 of the guiding member 321, and the electromagnetic drive drives up the clamping block 312 to re-clamp the yarn 11. During this process, the through hole 3211 of the guiding member 321 continuously restricts the direction of the yarn 11, ensuring that the broken end of the yarn 11 is always within the alignment range of the clamping assembly 31 when the stretching mechanism 3 moves, so as to realize the rapid re-clamping of the broken yarn 11.

[0042] Through the cooperation of the guiding member 321 and the stretching mechanism 3, the problem of re-clamping caused by the breakage and offset of the yarn 11 after breakage is effectively solved. The through-hole 3211 of the guiding member 321 forms a rigid constraint on the broken yarn 11, preventing the yarn 11 from curling or skewing due to elastic contraction, keeping the broken end always on the preset path, and reducing the alignment error during re-clamping; enabling the clamping assembly 31 to accurately align with the broken end of the constrained yarn 11, eliminating the need for manual adjustment of the position of the yarn 11, and improving the continuity of the detection process; this structure realizes the automatic repositioning of the broken yarn 11, reduces the downtime intervention caused by the offset of the yarn 11, and ensures the consistency and reliability of the detection data for multiple batches.

[0043] As Figures 1 to 4 , Figures 9 to 11 shown in the figure: The guiding member 321 is slidably engaged with the mounting base 32, and the sliding direction of the guiding member 321 is the same as that of the stretching mechanism 3. An elastic member 3212 is provided between the guiding member 321 and the mounting base 32. The bottom surface of the guiding member 321 is inclined, and a limiting block 3213 matching the mounting bracket 311 is provided at the top of the guiding member 321.

[0044] When the stretching mechanism 3 drives the clamping assembly 31 to move to the guiding member 321, the mounting bracket 311 will contact and trigger positioning with the limiting block 3213 at the top of the guiding member 321, causing the stretching mechanism 3 to accurately stop. At this time, the guiding member 321 extends the broken end of the yarn 11 into the gap between the positioning block 3111 and the clamping block 312 through the through-hole 3211; during the upward movement of the clamping block 312 driven by electromagnetic force, the clamping block 312 will contact the bottom surface of the guiding member 321. Since the bottom surface of the guiding member 321 is inclined and the guiding member 321 is slidably engaged with the mounting base 32, the upward thrust of the clamping block 312 is decomposed into a horizontal component force along the inclined surface, driving the guiding member 321 to move towards the mounting base 32 and simultaneously compressing the elastic member 3212 between the guiding member 321 and the mounting base 32. As the guiding member 321 moves out of the clamping area, the clamping block 312 fits with the positioning block 3111, and the yarn 11 is clamped by extrusion. When the clamping block 312 is powered off and moves downward to release the yarn 11, the reset thrust of the elastic member 3212 causes the guiding member 321 to automatically slide back to the initial position to prepare for the next detection.

[0045] The guide member 321 is set to be able to slide, so that the guide member 321 can automatically disengage from the clamping area of the clamping assembly 31 under the push of the clamping block 312, avoiding interference with the clamping assembly 31, and ensuring the reliability of the clamping of the yarn 11; the wedge-shaped transmission structure with an inclined bottom surface converts the vertical movement of the clamping block 312 into horizontal sliding of the guide member 321, thereby realizing the automatic withdrawal of the guide member 321, eliminating the manual intervention step, and shortening the re-clamping response time; the reset function of the elastic member 3212 enables the guide member 321 to automatically return to its position after each clamping, ensuring the continuity of multiple rounds of detection, improving the continuous detection efficiency of the device, and at the same time reducing maintenance downtime due to mechanical interference and reducing random errors introduced by manual operation.

[0046] In order to improve the service life of the guide member 321, a roller can be further provided on the clamping block 312 near one end of the guide member 321. The setting of the roller on the clamping block 312 will convert the sliding friction with the bottom surface of the guide member 321 into rolling friction, thereby reducing the wear rate of the bottom surface of the guide member 321 and reducing the downtime maintenance cost caused by frequent replacement of the guide member 321.

[0047] like Figure 1 、 Figure 3 and Figure 12 As shown, a first guide wheel 41 is provided below the fixing assembly 4 to guide the yarn 11 to the guide member 321 , and the fixing assembly 4 includes a clamping wheel 42 provided on the first guide wheel 41 and capable of sliding along the axial direction of the first guide wheel 41 .

[0048] After the yarn 11 is drawn out from the fixed component 4, it changes direction via the first guide wheel 41 and is guided to the through hole 3211 of the guide member 321. The clamping wheel 42 in the fixed component 4 can slide along the axis of the first guide wheel 41. When the stretching mechanism 3 needs to pull out a preset length of yarn 11, the clamping wheel 42 slides along the axis and presses the yarn 11 against the surface of the first guide wheel 41, fixing the yarn 11 through friction. When the length of the yarn 11 needs to be released or adjusted, the clamping wheel 42 slides and releases, allowing the yarn 11 to move as the first guide wheel 41 rotates. The cooperation between the first guide wheel 41 and the clamping wheel 42 forms a stable clamping point for the yarn 11 at the fixed component 4, which, in conjunction with the sliding of the stretching mechanism 3, enables precise stretching detection of the fixed-length yarn 11.

[0049] It should be noted that the placement of the unwinding wheel 1, the moisture content control mechanism 2 and the fixed component 4 can be arranged in sequence along the horizontal direction, or in a spatial polygonal layout (such as a triangle, a quadrilateral, etc.). By arranging the mounting wheels at different heights or angles to guide the yarn 11, the yarn 11 is pulled out from the unwinding wheel 1 and forms a spatial angle along the path of the moisture content control mechanism 2 and the fixed component 4, so as to increase the contact length between the yarn 11 and the moisture content control mechanism 2 or optimize the space utilization, while meeting the layout requirements under different detection scenarios.

[0050] As Figure 1 , Figure 3 , Figures 6 to 8 shown: The moisture content control mechanism 2 includes a heating box 21. Inside the heating box 21, there are infrared lamps 212 for heating the yarn 11. The infrared lamps 212 are arranged in parallel along the traction path of the yarn 11. On both sides of the heating box 21, there are first wire passing holes 211 for the yarn 11 to pass through and out.

[0051] After the yarn 11 is drawn out from the unwinding wheel 1, it passes through the first wire passing holes 211 on both sides of the heating box 21 and passes through the heating box 21 along the path where the infrared lamps 212 are arranged in parallel. The infrared lamps 212 emit infrared radiation. When the yarn 11 passes through, the infrared light can penetrate the surface layer of the yarn 11 and be absorbed by the internal fibers, causing the temperature of the yarn 11 to rise simultaneously inside and outside, and the moisture to evaporate quickly, thus realizing the control of the moisture content. Since the infrared lamps 212 are arranged in parallel along the traction path of the yarn 11, the yarn 11 can receive infrared radiation evenly during movement. The first wire passing holes 211 on both sides of the heating box 21 ensure the stable movement direction of the yarn 11, enabling the yarn 11 to pass through the heating area along a preset path, and entering the fixing component 4 after the moisture content adjustment is completed.

[0052] Infrared heating has the characteristic of strong penetration, which can make the temperature of the yarn 11 rise synchronously inside and outside, improve the moisture evaporation efficiency, shorten the adjustment time of the moisture content of the yarn 11, and adapt to the rapid and continuous detection requirements of the device; in addition, infrared heating has low energy consumption and fast response speed, and can adjust the heating power in real time according to the detection requirements, further improving the detection efficiency and energy utilization rate of the device.

[0053] As Figure 1 , Figure 3 , Figures 5 to 7 shown: The moisture content control mechanism 2 further includes a humidifying box 22. The humidifying box 22 is arranged between the heating box 21 and the unwinding wheel 1. Inside the humidifying box 22, a plurality of spray heads 221 are evenly distributed along the traction path of the yarn 11. On both sides of the humidifying box 22, there are second wire passing holes 222 for the yarn 11 to pass through and out.

[0054] After the yarn 11 is drawn out from the unwinding roller 1, it passes through the second wire passing hole 222 on one side of the humidifying box 22 and moves along the distribution path of the spray head 221. The spray head 221 sprays fine atomized water particles onto the yarn 11, and the water particles are evenly attached to the surface of the yarn 11 and the fiber gaps through spray coverage, so that the yarn 11 absorbs moisture to reach a saturated wet state. The humidified yarn 11 passes out from the second wire passing hole 222 on the other side and enters the downstream heating box 21, where the moisture is evaporated by heating with the infrared lamp tube 212 to achieve the adjustment of the moisture content gradient. The uniform distribution of the spray head 221 ensures that each section of the yarn 11 can contact the atomized water particles during the movement process. Cooperating with the air flow diversion structure in the humidifying box 22, it avoids the accumulation of water mist or local over-wetting, and ensures the uniform moisture content of the humidified yarn 11.

[0055] Through the settings of the humidifying box 22 and the spray head 221, the device has the ability to regulate the moisture content in both the humidifying and drying directions, can simulate the full-scenario humidity gradient from high humidity to dryness, and at the same time does not need to sleeved the humidity-saturated yarn 11 on the yarn 11 roller. Therefore, the adaptability of the equipment is improved, and the equipment can directly process the yarn 11 through the humidifying box 22.

[0056] As Figure 1 、 Figure 3 、 Figures 6 to 8 shown: The moisture content regulating mechanism 2 further includes a humidity detector 23 disposed between the heating box 21 and the fixing assembly 4.

[0057] After the moisture content of the yarn 11 is adjusted through the heating box 21, it enters the area between the heating box 21 and the fixing assembly 4. At this time, the detection end of the humidity detector 23 scans the yarn 11 in real time, obtains the current moisture content data of the yarn 11 through non-contact detection (such as infrared, capacitance induction, etc.), and feeds the data back to the control system at the back end in real time. The control system compares the deviation between the detected data and the target value according to the preset moisture content gradient requirement, and automatically adjusts the power of the infrared lamp tube 212 of the heating box 21 or the spray amount of the humidifying box 22. Before the yarn 11 enters the fixing assembly 4 and is clamped at a fixed length, the humidity detector 23 ensures that its moisture content reaches the preset detection condition, providing accurate humidity state data support for the subsequent tensile strength detection. It avoids the deviation of the strength data caused by the fluctuation of the moisture content; the non-contact detection method avoids physical damage to the yarn 11. During the detection process, the yarn 11 does not need to stop, which matches the continuous detection process of the device, and the detection efficiency is not affected; the real-time feedback mechanism can dynamically adjust the control parameters according to the moisture absorption characteristics of different yarn 11 materials.

[0058] As Figures 1 to 4 and Figure 11As shown in the figure: A lead screw 322 and a slide rail 323 extending along its length direction are provided on the mounting base 32. The stretching mechanism 3 is slidably arranged on the slide rail 323. The lead screw 322 penetrates through the stretching mechanism 3 and is in threaded cooperation with it. A second rotary drive motor 324 for driving the lead screw 322 to rotate is also provided on the mounting base 32.

[0059] When it is necessary to drive the stretching mechanism 3 to move horizontally, the second rotary drive motor 324 is started to drive the lead screw 322 to rotate. Since the lead screw 322 is in threaded cooperation with the stretching mechanism 3 and the stretching mechanism 3 is restricted to slide on the slide rail 323, the rotational motion of the lead screw 322 is converted into a linear motion of the stretching mechanism 3 along the slide rail 323. When the second rotary drive motor 324 rotates forward, the lead screw 322 pushes the stretching mechanism 3 to slide away from the fixed component 4, and a stretching force is applied to the yarn 11 through the clamping component 31; when the second rotary drive motor 324 rotates in reverse, the lead screw 322 drives the stretching mechanism 3 to slide towards the fixed component 4 and reset to the initial position or beside the guide member 321. The slide rail 323 provides guidance and support for the stretching mechanism 3 to ensure a smooth sliding process and high straightness. The transmission method of threaded cooperation enables the position of the stretching mechanism 3 to be accurately adjusted by controlling the rotation angle of the motor.

[0060] As Figure 9 shown in the figure: A distance sensor 33 for real-time detecting the distance between the stretching mechanism 3 and the fixed component 4 is also provided on the stretching mechanism 3.

[0061] The distance sensor 33 is installed on the stretching mechanism 3. Its detection end continuously emits detection signals to the fixed component 4 and receives the reflected signals to calculate the real-time distance. When the stretching mechanism 3 moves, the distance sensor 33 synchronously collects position data and transmits it to the control system at the back end: During the stretching stage of the yarn 11, the control system calculates the stretching displacement according to the distance data to ensure that the clamping component 31 applies a stretching amount of a preset length to the yarn 11; when the yarn 11 breaks and needs to be re-clamped, the distance sensor 33 guides the stretching mechanism 3 to accurately move to the side of the fixed component 4 so that the clamping component 31 can clamp the yarn 11 again.

[0062] The distance sensor 33 provides data support for the accurate alignment of the stretching mechanism 3, avoids the failure of clamping the yarn 11 caused by position deviation, reduces the downtime for debugging during the detection process, and further optimizes the smoothness of continuous detection.

[0063] The above embodiments merely represent one or several implementation manners of the present invention application. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the protection scope of the present invention application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention application, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention application. Therefore, the protection scope of the present invention application shall be subject to the appended claims.

Claims

1. A yarn strength detection device facilitating continuous detection, characterized in that, It includes an unwinding wheel for placing the yarn to be detected, a moisture content control mechanism for adjusting the moisture content of the yarn, and a stretching mechanism that can slide horizontally; The moisture content control mechanism is located between the stretching mechanism and the unwinding wheel; A clamping component for clamping the end of the yarn is arranged on the stretching mechanism. After the yarn is drawn out from the unwinding wheel, it passes through the moisture content control mechanism and is placed on the clamping component; A fixing component for clamping the yarn drawn out a preset length is arranged between the moisture content control mechanism and the stretching mechanism; By the sliding of the stretching mechanism, the clamping component applies a tensile force to the yarn until the yarn breaks to obtain the yarn strength data.

2. The yarn strength detection device for continuous detection according to claim 1, wherein, The clamping component includes a mounting frame fixedly connected to the stretching mechanism. A positioning block is arranged at the top of the mounting frame. Below the positioning block, there is a clamping block that can slide vertically. The clamping block is driven by an electromagnetic drive.

3. The yarn strength detection device for facilitating continuous detection according to claim 2, characterized in that, Below the stretching mechanism, there is a mounting seat that can extend horizontally. At one end of the mounting seat close to the fixing component, there is a guiding component for guiding the end of the yarn between the positioning block and the clamping block. A through hole for the yarn to pass through is arranged on the guiding component.

4. A yarn strength detection device facilitating continuous detection according to claim 3, characterized in that, The guiding component is in sliding fit with the mounting seat, and the sliding direction of the guiding component is the same as that of the stretching mechanism. An elastic component is arranged between the guiding component and the mounting seat. The bottom surface of the guiding component is inclined, and a limiting block that matches the mounting frame is arranged at the top of the guiding component.

5. The yarn strength detection device for facilitating continuous detection according to claim 3, characterized in that, Below the fixing component, there is a first guiding wheel for guiding the yarn to the guiding component. The fixing component includes a clamping wheel that can slide along the axis direction of the first guiding wheel and is arranged on the first guiding wheel.

6. A yarn strength detection device facilitating continuous detection according to any one of claims 1-5, characterized in that, The moisture content control mechanism includes a heating box. Infrared lamps for heating the yarn are arranged in the heating box. The infrared lamps are arranged in parallel along the yarn traction path. First wire passing holes for the yarn to pass through are respectively arranged on both sides of the heating box.

7. The yarn strength detection device for facilitating continuous detection according to claim 6, characterized in that, The moisture content control mechanism further includes a humidifying box. The humidifying box is arranged between the heating box and the unwinding wheel. A plurality of spray heads are evenly distributed in the humidifying box along the yarn traction path. Second wire passing holes for the yarn to pass through are respectively arranged on both sides of the humidifying box.

8. An apparatus for detecting the strength of yarn that facilitates continuous detection according to claim 6, wherein, The moisture content control mechanism further includes a humidity detector arranged between the heating box and the fixing component.

9. The yarn strength detection device for facilitating continuous detection according to claim 3, characterized in that, A lead screw and a slide rail extending along its length direction are arranged on the mounting seat. The stretching mechanism is slidably arranged on the slide rail. The lead screw penetrates through the stretching mechanism and is in threaded cooperation with it. A second rotation drive motor for driving the lead screw to rotate is also arranged on the mounting seat.

10. The yarn strength detection device for facilitating continuous detection according to claim 1, characterized in that, A distance sensor for real-time detecting the distance between the stretching mechanism and the fixing component is also arranged on the stretching mechanism.

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