A continuous yarn tension rapid detection device and a detection method thereof

Abstract

The application belongs to the technical field of measurement, and particularly relates to a continuous yarn tension rapid detection device and a detection method thereof. The device comprises a machine body, a tension detection assembly and a feeding assembly. The tension detection assembly comprises two clamping structures, one of which is slidingly assembled on the machine body. A force sensor and a cylinder one are arranged on the clamping structure. The feeding assembly comprises: a mounting plate rotatably mounted on the machine body; a circular plate rotatably mounted on the mounting plate; a first annular plate mounted on the circular plate; a guide rod one fixedly mounted on the first annular plate; a first clamping plate fixedly mounted on the guide rod one away from the first annular plate; a second clamping plate slidingly assembled on the guide rod one. Through the arrangement of the feeding assembly, automatic feeding, continuous detection and automatic cleaning of residues can be realized, the detection efficiency is improved, the first clamping plate and the second clamping plate can rotate to wind the yarn, the sample spacing of multiple sampling can be accurately controlled, and the accuracy of the detection result is effectively ensured.

Description

Technical Field

[0001] This invention belongs to the field of measurement, specifically a continuous yarn tensile strength rapid detection device and its detection method. Background Technology

[0002] In the textile industry production chain, yarn is a core raw material, and its application covers a variety of scenarios from everyday clothing to industrial fields, including apparel, home textiles and industrial textiles. During the yarn production process, testing devices are needed to test the tensile strength of the yarn.

[0003] A patent application with publication number CN109186834B discloses a tensile testing device for textile yarns, including a placement mechanism and a testing mechanism on one side of the placement mechanism. The placement mechanism consists of a base plate, a support column, a fixed display plate, a fixing clamp, and a label. The support column is installed on the base plate. The testing mechanism includes a clamping cylinder, a pressure sensor, and a measuring cylinder. The yarn to be tested is pulled onto the testing structure and clamped by the clamping cylinder. One of the clamping cylinders is controlled to move, stretching the yarn until it breaks. The stress and tensile length of the yarn can be detected by the pressure sensor and the measuring cylinder.

[0004] To ensure the accuracy of the test results, the same sample needs to be sampled and tested multiple times. However, after each test, the above method requires manual operation to prepare for the next test, resulting in low testing efficiency. This is especially true for longer yarns, where sufficient spacing between samples is required to further improve the accuracy of the results. The efficiency problem is more prominent in this operation mode, and manual sampling makes it difficult to accurately control the spacing, which can easily lead to result deviations.

[0005] Therefore, the present invention provides a continuous yarn tensile strength rapid detection device. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this invention to solve its technical problem is as follows: A continuous yarn tensile strength rapid detection device according to this invention includes a machine body, a tensile strength detection component, and a feeding component. The tensile strength detection component includes two clamping structures, one of which is slidably mounted on the machine body. A force sensor and a cylinder are provided on the clamping structure. The feeding component includes: a mounting plate rotatably mounted on the machine body; a circular plate rotatably mounted on the mounting plate; a first annular plate mounted on the circular plate; a guide rod fixedly mounted on the first annular plate; a first clamping plate fixedly mounted on the end of the guide rod away from the first annular plate; and a second clamping plate slidably mounted on the guide rod. The first clamping plate and the second clamping plate are used to clamp the end of the yarn and, driven by the rotation of the mounting plate, move from one side of one of the clamping structures to the other side of the clamping structure to realize the feeding of the yarn.

[0008] Preferably, the feeding assembly further includes: a second guide rod fixedly mounted on the circular plate, wherein the first annular plate is slidably connected to the circular plate via the second guide rod; and a second annular plate fixedly mounted on the mounting plate, wherein the first annular plate and the second annular plate are threadedly connected.

[0009] Preferably, the feeding assembly further includes: a gear one fixedly mounted on the circular plate; a gear two rotatably mounted on the mounting plate, the gear one meshing with the gear two; and a cylinder two fixedly mounted on the first annular plate, the movable end of the cylinder two being connected to the second clamping plate.

[0010] Preferably, the assembly further includes a collection component comprising: an annular plate rotatably mounted on the first annular plate; a receiving shell mounted on the annular plate, the receiving shell being slidably connected to the annular plate, and a spring being installed between the receiving shell and the annular plate; a feed inlet opened on the receiving shell; an air suction structure mounted on the mounting plate, the air suction structure being connected to the receiving shell via a pipe; and a filter plate installed inside the receiving shell, the filter plate being used to prevent yarn from entering the pipe.

[0011] Preferably, the air intake structure includes: a cylinder fixedly mounted on the mounting plate; a disc slidably mounted inside the cylinder; a lead screw rotatably mounted on the mounting plate, the lead screw being threadedly connected to the disc; an air inlet and an air outlet formed on the cylinder, a first blocking plate and a second blocking plate respectively connected to the air inlet and the air outlet, a spring one and a spring two installed between the first blocking plate and the second blocking plate and the cylinder, the air inlet communicating with the pipe; a gear three fixedly mounted on the lead screw; and a one-way transmission gear set for transmission, the one-way transmission gear set being rotatably mounted on the mounting plate, the rotation of gear two driving gear three to rotate through the one-way transmission gear set.

[0012] Preferably, the device further includes a position detection component, which includes: a clamping structure mounted on the mounting plate, the clamping structure including a third clamping plate and a fourth clamping plate; a timer mounted on the mounting plate; a telescopic rod mounted on the mounting plate, the end of the telescopic rod having a first plate mounted thereon, a second plate being slidably mounted on the first plate, and a switch being installed between the first plate and the second plate, the switch being used to control the opening and closing of the timer.

[0013] Preferably, the clamping structure further includes a connecting plate and a third annular plate. The connecting plate is fixedly mounted on the mounting plate, and a third plate is fixedly mounted on the connecting plate. The third plate is fixedly connected to the fourth clamping plate, and the third clamping plate is slidably connected to the third plate. The third annular plate is rotatably mounted on the mounting plate. A first round rod is threadedly connected to the third annular plate, and the first round rod is slidably connected to the connecting plate. A second round rod is slidably connected to the first round rod. A fourth spring is installed between the first round rod and the second round rod. The second round rod is fixedly connected to the third clamping plate. A fourth gear is fixedly mounted on the third annular plate, and a rack plate for driving the fourth gear to rotate is fixedly mounted on the machine body.

[0014] Preferably, the clamping structure includes: a mounting base mounted on the machine body; two fifth clamping plates mounted on the mounting base, one of which is slidably connected to the mounting base; and a third cylinder for driving the fifth clamping plate to slide, one end of the third cylinder being connected to the fifth clamping plate and the other end of the third cylinder being connected to the machine body.

[0015] A continuous yarn tensile testing method includes the following steps: S1. Pre-operation preparation: The yarn is wound onto the machine body, and the yarn end is clamped by the feeding component; S2. Feeding operation: The feeding component is controlled to rotate, allowing the yarn to pass through the tensile testing component, and the two clamping structures in the tensile testing component are controlled to clamp the yarn; S3. Tensile testing: The cylinder of the testing component is activated to slide the sliding clamping structure, while the other clamping structure remains stationary. The yarn is stretched until it breaks. After breakage, the cylinder resets. During this process, the force sensor collects and transmits tensile data in real time; S4. Broken yarn cleaning: The control... The clamping structure of the sliding assembly releases the yarn, the feeding component resets in reverse, and the receiving shell of the collecting component is controlled to wrap around the first and second clamping plates of the feeding component. At the same time, the suction structure of the collecting component is activated and the first and second clamping plates are rotated and the claws are released to suck the broken yarn into the receiving shell for storage. After collection is completed, the receiving shell is reset; S5 Reset: After the feeding component is reset, its first and second clamping plates are controlled to hold the yarn between the yarn roll and another clamping structure, and then the clamping structure is controlled to release the yarn; S6 Continuous operation: Repeat steps S2 to S5 to achieve continuous yarn feeding and detection.

[0016] Preferably, before step 3, the clamping structure of the controllable position detection component clamps the yarn; after step 3, the sliding assembly clamping structure releases the yarn, the clamping plate of the feeding component rotates and winds the yarn, and the timer records the winding time.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. The continuous yarn tensile strength rapid detection device and its detection method described in this invention, through the setting of the feeding component, can realize automatic feeding, continuous detection and automatic cleaning of residues, thereby improving detection efficiency. Moreover, the first clamping plate and the second clamping plate can rotate and wind the yarn, accurately control the sample spacing of multiple samplings, and effectively ensure the accuracy of the detection results.

[0019] 2. The continuous yarn tensile strength rapid detection device and its detection method described in this invention can collect broken yarns and store them in the housing through the air suction structure of the collection component. Compared with the air blowing cleaning method in the prior art, it avoids the yarns being blown into the sliding grooves of movable parts, which can cause equipment jamming and wear, thus ensuring long-term stable operation of the equipment and reducing maintenance costs.

[0020] 3. The continuous yarn tensile strength rapid detection device and its detection method described in this invention, through the setting of the position detection component, realizes the quantitative calculation of yarn tensile length and the accurate judgment of breakage position, forming a closed loop of detection, feedback and adjustment, which can promptly detect yarn damage caused by excessive clamping force, eliminate data error factors from the root, and further improve the reliability and accuracy of detection results. Attached Figure Description

[0021] The invention will now be further described with reference to the accompanying drawings.

[0022] Figure 1 This is a perspective view of an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the clamping structure of the present invention;

[0024] Figure 3 This is a schematic diagram showing the position of the timer of the present invention;

[0025] Figure 4 This is a schematic diagram showing the position of the telescopic rod of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of the first and second clamping plates of the present invention;

[0027] Figure 6 This is a cross-sectional view of the housing shell of the present invention;

[0028] Figure 7 This is a cross-sectional view of the first annular plate and the second annular plate of the present invention;

[0029] Figure 8 This is a cross-sectional view of the cylinder of the present invention;

[0030] Figure 9 This is a schematic diagram showing the position of the switch in this invention;

[0031] Figure 10 This is an exploded view of the second round rod and the first round rod of the present invention;

[0032] In the diagram: 1. Machine body; 2. Tensile force detection assembly; 21. Clamping structure; 211. Mounting base; 212. Fifth clamping plate; 213. Cylinder three; 22. Force sensor; 23. Cylinder one; 3. Feeding assembly; 31. Mounting plate; 32. Circular plate; 33. First annular plate; 34. Guide rod one; 35. First clamping plate; 36. Second clamping plate; 37. Guide rod two; 38. Second annular plate; 39. Gear one; 310. Gear two; 311. Cylinder two; 4. Collection assembly; 41. Ring plate; 42. Receiving shell; 43. Feed inlet; 44. Suction structure; 441. Cylinder; 442. Disc; 443. Lead screw; 444. First blocking plate; 445. Second blocking plate; 446. Gear three; 447. One-way transmission gear set; 45. Pipe; 46. Filter plate; 47. Electromagnet; 5. Position detection component; 51. Clamping structure; 511. Third clamping plate; 512. Fourth clamping plate; 513. Connecting plate; 514. Third annular plate; 515. Third plate; 516. Round rod one; 517. Round rod two; 518. Gear four; 519. Rack plate; 52. Timer; 53. Telescopic rod; 54. First plate; 55. Second plate; 56. Switch. Detailed Implementation

[0033] To make the technical means, objectives, and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0034] like Figure 1 - Figure 10 As shown, an embodiment of the present invention provides a continuous yarn tensile strength rapid detection device, comprising a machine body 1, a tensile strength detection component 2, and a feeding component 3. The tensile strength detection component 2 includes two clamping structures 21, one of which is slidably mounted on the machine body 1. A force sensor 22 and a cylinder 23 are disposed on the clamping structure 21. The force sensor 22 is located between the cylinder 23 and the clamping structure 21 and is used to collect tensile strength data of the yarn. The cylinder 23 provides a power source for the sliding of the clamping structure 21. The feeding component 3 includes a component rotatably mounted on the machine body 1. The mounting plate 31 is rotatably mounted on the mounting plate 31; a circular plate 32 is mounted on the circular plate 32; a first annular plate 33 is mounted on the circular plate 32; a guide rod 34 is fixedly mounted on the first annular plate 33; a first clamping plate 35 is fixedly mounted on the end of the guide rod 34 away from the first annular plate 33; and a second clamping plate 36 is slidably mounted on the guide rod 34. The first clamping plate 35 and the second clamping plate 36 are used to clamp the end of the yarn and move from one side of the clamping structure 21 to the other side of the clamping structure 21 under the rotation of the mounting plate 31, so as to realize the feeding of the yarn.

[0035] Specifically, to ensure the accuracy of the test results, the same sample needs to be sampled and tested multiple times. However, in the current technology, after a single test is completed, manual operation is required to prepare for the next test, resulting in low testing efficiency. This is especially true for longer yarns, where sufficient spacing between samples is required to further improve the accuracy of the results. The efficiency problem is even more prominent in this operation mode.

[0036] The machine body 1 is equipped with guide wheels, and the plate for mounting the guide wheels is slidably connected to the machine body 1 so that the yarn is always in a taut state during the feeding process. The rotation of the mounting plate 31 is controlled by electric power.

[0037] Before operation, the yarn roll is installed on the machine body 1 (the yarn roll can rotate synchronously during feeding, and the mechanism and rotation adopt existing technology). The end of the yarn is passed through the guide wheel and placed between the first clamping plate 35 and the second clamping plate 36. The second clamping plate 36 is controlled to move relative to the first clamping plate 35 to achieve the action of clamping the end of the yarn. At this time, the end of the yarn is located on one side of one of the clamping structures 21.

[0038] During operation, the mounting plate 31 is rotated, which drives the circular plate 32, the first annular plate 33, and the guide rod 34 to rotate synchronously. The guide rod 34 drives the first clamping plate 35 and the second clamping plate 36 to rotate synchronously, causing the end of the yarn to move until the mounting plate 31 rotates 180 degrees. At this time, the end of the yarn is located on the other side of the other clamping structure 21, and the yarn passes between the two clamping structures 21 in a taut state. Then, the clamping structure 21 is controlled to clamp the yarn, and the cylinder 23 is started. The sliding clamping structure 21 slides along the machine body 1, causing the yarn between the two clamping structures 21 to be stretched until the yarn breaks. The cylinder 23 stops and resets. During the process of yarn stretching and breaking, the force sensor 22 continuously collects the tension data of the yarn in real time and transmits it to the system.

[0039] Subsequently, the sliding clamping structure 21 is controlled to release the yarn, and the circular plate 32 is controlled to rotate, driving the first annular plate 33 to rotate. The first annular plate 33 drives the first clamping plate 35 and the second clamping plate 36 to rotate, removing the yarn remaining on the clamping structure 21 after breakage. The circular plate 32 is controlled to rotate in the opposite direction, causing the first clamping plate 35 and the second clamping plate 36 to reset. Then, the second clamping plate 36 is controlled to move away from the first clamping plate 35, releasing the broken yarn. The mounting plate 31 is rotated in the opposite direction to reset. After reset, the new yarn segment is again located between the first clamping plate 35 and the second clamping plate 36. The second clamping plate 36 is controlled to move closer to the first clamping plate 35 and clamp the yarn. The other clamping structure 21 is controlled to reset (releasing the yarn end), completing a single detection cycle. At this time, the device can repeat the above rotation and detection steps to achieve continuous feeding and continuous detection.

[0040] During the rotation of the mounting plate 31, the circular plate 32 can be controlled to rotate, so that the first clamping plate 35 and the second clamping plate 36 rotate synchronously, and some yarn is wound around the first clamping plate 35 and the second clamping plate 36 to ensure that there is sufficient spacing between samples when sampling.

[0041] By setting up the feeding component 3, automatic feeding, continuous detection and automatic cleaning of residues can be achieved, which improves the above-mentioned problems and increases detection efficiency. In addition, the first clamping plate 35 and the second clamping plate 36 can rotate and wind the yarn, accurately control the sample spacing of multiple samplings, and effectively ensure the accuracy of the detection results.

[0042] like Figure 1 , Figure 5 , Figure 6 and Figure 7 As shown, the feeding assembly 3 also includes: a second guide rod 37 fixedly installed on the circular plate 32, and a first annular plate 33 slidably connected to the circular plate 32 through the second guide rod 37; and a second annular plate 38 fixedly installed on the mounting plate 31, with the first annular plate 33 and the second annular plate 38 threadedly connected.

[0043] Specifically, during the rotation of the mounting plate 31, when it is necessary to wind the yarn through the first clamping plate 35 and the second clamping plate 36 to ensure the sampling interval, the first annular plate 33 rotates synchronously. Since the first annular plate 33 and the fixed second annular plate 38 are threadedly connected, the first annular plate 33 will move radially during rotation due to the thread meshing, which will drive the first clamping plate 35 and the second clamping plate 36 to move synchronously. This allows the yarn to be evenly distributed on the first clamping plate 35 and the second clamping plate 36 during the winding process, avoiding local accumulation. It also ensures that the wound yarn always remains parallel to the cylinder 23, thereby ensuring that the subsequent yarn can accurately pass between the two clamping structures 21, avoiding detection errors or feeding failures caused by yarn deviation.

[0044] like Figure 1 , Figure 4 and Figure 5 As shown, the feeding assembly 3 also includes: a gear 39 fixedly mounted on the circular plate 32; a gear 310 rotatably mounted on the mounting plate 31, with the gear 39 meshing with the gear 310; and a cylinder 311 fixedly mounted on the first annular plate 33, with the movable end of the cylinder 311 connected to the second clamping plate 36.

[0045] Specifically, the rotation of gear 2 310 is driven by electric power. The sliding of the second clamping plate 36 relative to the first clamping plate 35 is controlled by cylinder 2 311. Controlling the rotation of gear 2 310 can drive the circular plate 32 to rotate synchronously through gear 1 39. The rotation of the circular plate 32 causes the first clamping plate 35 and the second clamping plate 36 to rotate, which can realize the winding and unwinding actions.

[0046] like Figure 1 and Figure 3 - Figure 6 As shown, it also includes a collection component 4, which includes: an annular plate 41 rotatably mounted on the first annular plate 33; a receiving shell 42 mounted on the annular plate 41, the receiving shell 42 being slidably connected to the annular plate 41, and a spring 3 installed between the receiving shell 42 and the annular plate 41; a feed inlet 43 opened on the receiving shell 42; an air suction structure 44 mounted on the mounting plate 31, and a pipe 45 for communication between the air suction structure 44 and the receiving shell 42; a filter plate 46 installed inside the receiving shell 42, the filter plate 46 being used to block yarn from entering the pipe 45; an electromagnet 47 is provided on the second annular plate 38, and a magnet is provided at one end of the receiving shell 42 near the electromagnet 47. By energizing the electromagnet 47, a magnetic field is generated, driving the receiving shell 42 to move relative to the annular plate 41, thereby realizing the position adjustment of the receiving shell 42.

[0047] like Figure 3 - Figure 8 As shown, the air intake structure 44 includes: a cylinder 441 fixedly mounted on the mounting plate 31; a disc 442 slidably mounted inside the cylinder 441; a lead screw 443 rotatably mounted on the mounting plate 31, the lead screw 443 being threadedly connected to the disc 442; an air inlet and an air outlet formed on the cylinder 441, with a first blocking plate 444 and a second blocking plate 445 respectively connected to the air inlet and the air outlet; a spring 1 and a spring 2 installed between the first blocking plate 444 and the second blocking plate 445 and the cylinder 441; the air inlet communicating with the pipe 45; a gear 3 446 fixedly mounted on the lead screw 443; and a one-way transmission gear set 447 for transmission, the one-way transmission gear set 447 being rotatably mounted on the mounting plate 31, the rotation of gear 2 310 driving gear 3 446 to rotate through the one-way transmission gear set 447.

[0048] Specifically, the lead screw 443 is a reciprocating lead screw 443. The first blocking plate 444 can only slide into the cylinder 441 (allowing gas to enter the cylinder 441 from the housing 42). The second blocking plate 445 can only slide out of the cylinder 441 (allowing gas to be discharged from the cylinder 441 to the outside). The one-way transmission gear set 447 includes two meshing gears. One gear is coaxial with gear two 310 and the two drive in one direction. The other gear meshes with gear three 446. When gear two 310 drives the first clamping plate 35 and the second clamping plate 36 to rotate and wind the yarn on them, the one-way transmission gear set 447 remains stationary. Conversely, when gear two 310 drives gear three 446 to rotate through the one-way transmission gear set 447, the gear two 310 drives gear three 446 to rotate.

[0049] After the test is completed, before the control gear 2 310 rotates in reverse to release the yarn, the electromagnet 47 on the second annular plate 38 is energized. The electromagnet 47 generates a magnetic field that interacts with the magnet on the receiving shell 42, driving the receiving shell 42 to slide relative to the annular plate 41 against the elastic force of the spring 3 until the receiving shell 42 completely fits the first clamping plate 35 and the second clamping plate 36 inside it. Then, the control gear 2 310 rotates in reverse, causing the yarn on the first clamping plate 35 and the second clamping plate 36 to loosen and fall onto the receiving shell 42. At the same time, the control gear 2 310 drives the gear 3 446 and the lead screw 443 to rotate. The rotation of the lead screw 443 causes the disc 442 to move back and forth relative to the cylinder 441. When the disc 442 moves towards the mounting plate 31, the internal volume of the cylinder 441 increases and the air pressure decreases, forming a negative pressure. The first blocking plate 4 Under the action of the internal and external air pressure difference, the broken yarn slides into the cylinder 441, and the spring is stretched. At this time, the cylinder 441 is connected to the receiving shell 42 through the pipe 45. The feed port 43 of the receiving shell 42 generates suction, which sucks the hanging broken yarn into the receiving shell 42 for storage. When the circular plate 32 moves away from the mounting plate 31, the first blocking plate 444 is reset under the action of the spring force of the first spring. The cylinder 441 and the receiving shell 42 are not connected. The air pressure in the cylinder 441 increases. The second blocking plate 445 slides out of the cylinder 441 under the action of the air pressure difference. The second spring is compressed. The cylinder 441 is connected to the outside through the air outlet, and the internal gas is discharged to achieve the air pressure balance in the cylinder 441. This cycle continues until all the broken yarn is collected into the receiving shell 42, thus realizing the cleaning of broken yarn.

[0050] After the yarn is collected, the power supply to the electromagnet 47 is cut off, the magnetic field disappears, and the housing 42 is reset relative to the ring plate 41 under the elastic force of the spring 3, separating from the area of ​​the first clamping plate 35 and the second clamping plate 36, without affecting the subsequent feeding and testing operations.

[0051] By using the suction structure 44 of the collection component 4, broken yarns can be collected and stored in the housing 42. Compared with the air-blowing cleaning method in the prior art, this avoids problems such as equipment jamming and wear caused by yarns being blown into the sliding grooves of movable parts (such as the sliding track of the clamping structure 21, the sliding gap of the guide rod, etc.), ensuring long-term stable operation of the equipment and reducing maintenance costs.

[0052] like Figure 3 , Figure 4 , Figure 9 and Figure 10As shown, it also includes a position detection component 5, which includes: a clamping structure 51 mounted on the mounting plate 31, the clamping structure 51 including a third clamping plate 511 and a fourth clamping plate 512; a timer 52 mounted on the mounting plate 31; a telescopic rod 53 mounted on the mounting plate 31, a first plate 54 mounted at the end of the telescopic rod 53, a second plate 55 slidably mounted on the first plate 54, and a switch 56 installed between the first plate 54 and the second plate 55, the switch 56 being used to control the opening and closing of the timer 52.

[0053] Specifically, switch 56 is a spring-loaded push-button switch 56, which is triggered when pressed and reset when there is no pressure. Switch 56 is electrically connected to timer 52.

[0054] After the first clamping plate 35 and the second clamping plate 36 move to one side of the sliding assembly clamping structure 21, the third clamping plate 511 and the fourth clamping plate 512 of the control position detection component 5 clamp the yarn, so that the yarn is in a "movable but not detached" state, laying the foundation for subsequent testing. After the tensile test is completed, the control cylinder 23 is reset, and the sliding assembly clamping structure 21 is controlled to release the yarn. The control telescopic rod 53 is extended, driving the first plate 54 and the second plate 55 to move forward. After the second plate 55 contacts the yarn, the first plate 54 continues to move forward, while the second plate 55 remains stationary due to the yarn obstruction. The distance between the first plate 54 and the second plate 55 decreases, thereby pressing the switch 56 between them. After the switch 56 is triggered, the timer 52 starts immediately, and the control cylinder 23 is activated. The gear 310 rotates in reverse, causing the first clamping plate 35 and the second clamping plate 36 to rotate in reverse, winding the broken yarn (pulling the yarn to move). As the first clamping plate 35 and the second clamping plate 36 wind the yarn, the yarn gradually moves out of the clamping area of ​​the third clamping plate 511 and the fourth clamping plate 512. When the yarn is completely separated from the third clamping plate 511 and the fourth clamping plate 512, the second plate 55 loses the obstruction of the yarn, the switch 56 is reset, the timer 52 stops timing, and then the timer 52 transmits the recorded time data to the system.

[0055] Then, control the mounting plate 31 to rotate in reverse to reset. After reset, the first clamping plate 35, the second clamping plate 36, the third clamping plate 511 and the fourth clamping plate 512 respectively clamp the yarn between the clamping structure 21 and the guide wheel. After clamping, control the clamping structure 21 to release the yarn. The above triggering, timing and data transmission actions can be repeated.

[0056] After receiving the data from timer 52, the system calculates the tensile length of the yarn between the two clamping structures 21 after the tensile test by combining the preset rotation speed of gear 2 310. By comparing the time difference of timer 52 in the two tests, the breakage location of the yarn can be deduced. If the breakage location is close to one of the clamping structures 21, it indicates that the clamping force of the clamping structure 21 is too large, which may cause local damage to the yarn and lead to inaccurate tensile test data. If the breakage location is in the middle area of ​​the yarn, the tensile test data is determined to be accurate. The system can issue a prompt based on the judgment result, so that the staff can adjust the clamping force of the clamping structure 21 in time to ensure the accuracy of subsequent test results.

[0057] The design of the position detection component 5 enables the quantitative calculation of yarn stretching length and accurate judgment of breakage location, forming a closed loop of detection, feedback and adjustment. This allows for timely detection of yarn damage caused by excessive clamping force, eliminating data error factors at the source and further improving the reliability and accuracy of the detection results.

[0058] like Figure 1 , Figure 3 , Figure 4 and Figure 10 As shown, the clamping structure 51 also includes a connecting plate 513 and a third annular plate 514. The connecting plate 513 is fixedly installed on the mounting plate 31. A third plate 515 is fixedly installed on the connecting plate 513. The third plate 515 is fixedly connected to the fourth clamping plate 512. The third clamping plate 511 is slidably connected on the third plate 515. The third annular plate 514 is rotatably installed on the mounting plate 31. A first round rod 516 is threadedly connected to the third annular plate 514. The first round rod 516 is slidably connected to the connecting plate 513. A second round rod 517 is slidably connected to the first round rod 516. A fourth spring is installed between the first round rod 516 and the second round rod 517. The second round rod 517 is fixedly connected to the third clamping plate 511. A fourth gear 518 is fixedly installed on the third annular plate 514. A rack plate 519 for driving the fourth gear 518 to rotate is fixedly installed on the machine body 1.

[0059] Specifically, the second round rod 517 is movable relative to the first round rod 516, and the fourth spring between them provides a buffer force for both, so that after the third clamping plate 511 clamps the yarn, the yarn can slide slightly relative to the third clamping plate 511 and the fourth clamping plate 512 (to adapt to the yarn stretching or moving requirements). The thread between the third annular plate 514 and the first round rod 516 adopts a reciprocating thread.

[0060] During the feeding process of the mounting plate 31, the fourth gear 518 contacts and meshes with the rack plate 519. Since the rack plate 519 is fixed on the machine body 1, the rotational force of the mounting plate 31 causes the fourth gear 518 to roll and rotate along the rack plate 519, thereby driving the third annular plate 514 to rotate synchronously. This drives the first round rod 516 to slide along the connecting plate 513 towards the mounting plate 31. The first round rod 516 drives the second round rod 517 to move synchronously, thereby pulling the third clamping plate 511 to move away from the fourth clamping plate 512, so that the third clamping plate 511 and the fourth clamping plate 512 are in a loosened state, reserving space for the yarn to enter.

[0061] As the mounting plate 31 continues to rotate, gear four 518 disengages from the first rack plate 519 and contacts and meshes with the second rack plate 519. Round rod one 516 slides along the connecting plate 513 away from the mounting plate 31, pushing round rod two 517 and the third clamping plate 511 to move closer to the fourth clamping plate 512. As the mounting plate 31 rotates, the yarn gradually enters between the third clamping plate 511 and the fourth clamping plate 512. When the third clamping plate 511 contacts the yarn, spring four is slightly compressed. The buffering force of spring four allows the third clamping plate 511 and the fourth clamping plate 512 to clamp the yarn with appropriate force.

[0062] like Figure 1 and Figure 2 As shown, the clamping structure 21 includes: a mounting base 211 mounted on the machine body 1; two fifth clamping plates 212 mounted on the mounting base 211, one of which is slidably connected to the mounting base 211; and a cylinder 213 for driving the fifth clamping plate 212 to slide, one end of the cylinder 213 being connected to the fifth clamping plate 212 and the other end of the cylinder 213 being connected to the machine body 1.

[0063] Specifically, one of the clamping structures 21 that is slidably connected to the machine body 1 has a cylinder 213 that is slidably connected to the machine body 1. When the yarn is located between the two fifth clamping plates 212 of the clamping structure 21, the cylinder 213 is controlled to extend and push one of the fifth clamping plates 212 closer to the other fifth clamping plate 212, thereby achieving the clamping action.

[0064] A continuous yarn tensile testing method includes the following steps: S1. Pre-operation preparation: The yarn is wound onto the machine body 1, and the yarn end is clamped by the feeding assembly 3; S2. Feeding operation: The feeding assembly 3 is controlled to rotate, so that the yarn passes through the tensile testing assembly 2, and the two clamping structures 21 in the tensile testing assembly 2 are controlled to clamp the yarn; S3. Tensile testing: The cylinder 23 of the testing assembly is activated to make the sliding clamping structure 21 slide, while the other clamping structure 21 remains stationary. The yarn is stretched until it breaks. After the yarn breaks, the cylinder 23 resets. During this process, the force sensor 22 collects and transmits tensile data in real time; S4. Broken yarn cleaning: The sliding assembly... The clamping structure 21 releases the yarn, the feeding component 3 reverses and resets, and controls the receiving shell 42 of the collecting component 4 to wrap around the first clamping plate 35 and the second clamping plate 36 of the feeding component 3. At the same time, the suction structure 44 of the collecting component 4 is activated and the first clamping plate 35 and the second clamping plate 36 are rotated and the claws are released, sucking the broken yarn into the receiving shell 42 for storage. After collection is completed, the receiving shell 42 is reset; S5 Reset: After the feeding component 3 is reset, it controls its first clamping plate 35 and the second clamping plate 36 to hold the yarn between the yarn roll and another clamping structure 21, and then controls the clamping structure 21 to release the yarn; S6 Continuous operation: Repeat steps S2 to S5 to realize continuous yarn feeding and detection.

[0065] Before step 3, the clamping structure 51 of the controllable position detection component 5 clamps the yarn. After step 3, the sliding clamping structure 21 releases the yarn, and the clamping plate of the feeding component 3 rotates to wind the yarn. At the same time, the timer 52 records the winding time.

[0066] Work steps:

[0067] Step 1: Before starting work, install the yarn roll on the machine body 1, pass the end of the yarn through the guide wheel, and place it between the first clamping plate 35 and the second clamping plate 36. Control the second clamping plate 36 to move relative to the first clamping plate 35 to achieve the action of clamping the end of the yarn. At this time, the end of the yarn is located on one side of one of the clamping structures 21.

[0068] Step 2: Control the rotation of the mounting plate 31. The mounting plate 31 drives the circular plate 32, the first annular plate 33, and the guide rod 34 to rotate synchronously. The guide rod 34 drives the first clamping plate 35 and the second clamping plate 36 to rotate synchronously, so that the end of the yarn moves until the mounting plate 31 rotates 180 degrees. At this time, the end of the yarn is located on the other side of the other clamping structure 21. The yarn passes through the two clamping structures 21 in a taut state. Then, control the clamping structure 21 to clamp the yarn, thus realizing the feeding action.

[0069] Step 3: During the feeding process of the rotating mounting plate 31, gear 4 518 contacts and meshes with rack plate 519. Since rack plate 519 is fixed on machine body 1, the rotational force of mounting plate 31 causes gear 4 518 to roll and rotate along rack plate 519, thereby driving the third annular plate 514 to rotate synchronously. This drives round rod 1 516 to slide along connecting plate 513 towards mounting plate 31. Round rod 1 516 drives round rod 2 517 to move synchronously, thereby pulling the third clamping plate 511 away from the fourth clamping plate 512, so that the third clamping plate 511 and the fourth clamping plate 512 are in a loosened state, providing yarn. Entering the reserved space, the mounting plate 31 continues to rotate. After the gear four 518 disengages from the first set of rack plates 519, it contacts and meshes with the second set of rack plates 519. The round rod one 516 slides along the connecting plate 513 away from the mounting plate 31, pushing the round rod two 517 and the third clamping plate 511 to move closer to the fourth clamping plate 512. As the mounting plate 31 rotates, the yarn gradually enters between the third clamping plate 511 and the fourth clamping plate 512. When the third clamping plate 511 contacts the yarn, the spring four is slightly compressed. The buffering force of the spring four allows the third clamping plate 511 and the fourth clamping plate 512 to clamp the yarn with appropriate force.

[0070] Step 4: Then, control cylinder 23 starts, and the sliding clamping structure 21 slides along the machine body 1, so that the yarn between the two clamping structures 21 is stretched until the yarn breaks. Then, stop the action of cylinder 23 and reset. During the process of yarn stretching and breaking, the force sensor 22 continuously collects the tension data of the yarn in real time and transmits it to the system, thus realizing the tension detection action.

[0071] Step 5: Control cylinder 23 to reset, and control the sliding clamping structure 21 to release the yarn. Control telescopic rod 53 to extend, driving the first plate 54 and the second plate 55 to move forward. After the second plate 55 contacts the yarn, the first plate 54 continues to move forward, while the second plate 55 remains stationary due to the yarn obstruction. The distance between the first plate 54 and the second plate 55 decreases, and then the switch 56 between them is pressed. After the switch 56 is triggered, the timer 52 starts immediately, and at the same time, the gear 2 310 is controlled to rotate in the opposite direction, driving the first clamping plate 35 and the second clamping plate 36 to rotate in the opposite direction, winding the broken yarn (pulling the yarn to move). As the first clamping plate 35 and the second clamping plate 36 wind the yarn, the yarn gradually moves out of the clamping area of ​​the third clamping plate 511 and the fourth clamping plate 512. When the yarn is completely detached from the third clamping plate 511 and the fourth clamping plate 512, the second plate 55 loses the obstruction of the yarn, the switch 56 resets, the timer 52 stops timing, and then the timer 52 transmits the recorded time data to the system.

[0072] Step Six: Subsequently, control the mounting plate 31 to rotate in reverse and reset, energize the electromagnet 47 on the second annular plate 38. The electromagnet 47 generates a magnetic field that interacts with the magnet on the receiving shell 42, driving the receiving shell 42 to slide relative to the annular plate 41 against the elastic force of the spring three, until the receiving shell 42 completely fits the first clamping plate 35 and the second clamping plate 36 inside it. Then, control the gear two 310 to rotate in reverse, causing the yarn on the first clamping plate 35 and the second clamping plate 36 to loosen and fall onto the receiving shell 42. At the same time, the gear two 310 drives the gear three 446 and the lead screw 443 to rotate. The rotation of the lead screw 443 drives the disc 442 to move back and forth relative to the cylinder 441. When the disc 442 moves towards the mounting plate 31, the internal volume of the cylinder 441 increases and the air pressure decreases, forming a negative pressure. Under the action of the internal and external air pressure difference, the first blocking plate 444 slides into the cylinder 441, and the spring one is stretched. At this time, the cylinder 441 passes through the pipe 45 The cylinder 441 is connected to the housing 42. The inlet 43 of the housing 42 generates suction to draw the broken yarn from the inlet 43 into the housing 42 for storage. When the circular plate 32 moves away from the mounting plate 31, the first blocking plate 444 is reset under the action of the spring force of the first spring. The cylinder 441 and the housing 42 are no longer connected. The air pressure inside the cylinder 441 increases. The second blocking plate 445 slides to the outside of the cylinder 441 under the action of the air pressure difference. The second spring is compressed. The cylinder 441 is connected to the outside through the air outlet to discharge the internal gas and achieve air pressure balance inside the cylinder 441. This cycle continues until all the broken yarn is collected into the housing 42. After the yarn is collected, the power supply of the electromagnet 47 is cut off. The magnetic field disappears. The housing 42 is reset relative to the ring plate 41 under the action of the spring force of the third spring and is separated from the area of ​​the first clamping plate 35 and the second clamping plate 36. This does not affect the subsequent feeding and detection actions, thus realizing the cleaning of broken yarn.

[0073] Step 7: During the reverse rotation and reset of mounting plate 31, gear 4 518 contacts and meshes with the two rack plates 519 successively. Its operating principle is exactly the same as in step 3. After reset, the third clamping plate 511 and the fourth clamping plate 512 clamp the yarn between the clamping structure 21 and the guide wheel with appropriate force. At the same time, the first clamping plate 35 and the second clamping plate 36 are also clamped. After clamping, the clamping structure 21 is controlled to release the yarn. The triggering, timing and data transmission actions of step 5 can be repeated. After the system receives the data from the timer 52, it combines the preset rotation speed of gear 2 310. The system calculates the tensile length of the yarn between the two clamping structures 21 after the tensile test, and compares the time difference of the timer 52 of the two tests to deduce the breakage location of the yarn. If the breakage location is close to one of the clamping structures 21, it indicates that the clamping force of the clamping structure 21 is too large, which may cause local damage to the yarn and lead to inaccurate tensile test data. If the breakage location is in the middle area of ​​the yarn, the tensile test data is determined to be accurate. The system can issue a prompt based on the judgment result, so that the staff can adjust the clamping force of the clamping structure 21 in time to ensure the accuracy of subsequent test results.

[0074] Step 8: Repeat steps 2 to 7 above to achieve continuous feeding and continuous testing.

[0075] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A continuous yarn tensile strength rapid detection device, comprising a machine body (1), a tensile strength detection component (2), and a feeding component (3), wherein the tensile strength detection component (2) comprises two clamping structures (21), one of which is slidably mounted on the machine body (1), and a force sensor (22) and a cylinder (23) are provided on the clamping structure (21), characterized in that: The feeding assembly (3) includes: Rotate the mounting plate (31) mounted on the body (1); Rotate the circular plate (32) mounted on the mounting plate (31); A first annular plate (33) is mounted on the circular plate (32); Guide rod 1 (34) is fixedly installed on the first annular plate (33); A first clamping plate (35) is fixedly installed at the end of the guide rod (34) away from the first annular plate (33); The second clamping plate (36) is slidably mounted on the guide rod (34). The first clamping plate (35) and the second clamping plate (36) are used to clamp the ends of the yarn. Under the rotation of the mounting plate (31), they move from one side of the clamping structure (21) to the other side of the clamping structure (21) to realize the feeding of the yarn. The feeding assembly (3) also includes: A guide rod 2 (37) is fixedly installed on the circular plate (32), and the first annular plate (33) is slidably connected to the circular plate (32) through the guide rod 2 (37); A second annular plate (38) is fixedly installed on the mounting plate (31), and the first annular plate (33) is threadedly connected to the second annular plate (38); The feeding assembly (3) also includes: Gear 1 (39) is fixedly installed on the circular plate (32); Rotate the second gear (310) mounted on the mounting plate (31), and the first gear (39) meshes with the second gear (310); Cylinder 2 (311) is fixedly installed on the first annular plate (33), and the movable end of cylinder 2 (311) is connected to the second clamping plate (36).

2. The continuous yarn tensile strength rapid detection device according to claim 1, characterized in that: It also includes a collection component (4), which includes: Rotate the ring plate (41) mounted on the first annular plate (33); A receiving shell (42) is installed on the ring plate (41), the receiving shell (42) is slidably connected to the ring plate (41), and a spring is installed between the receiving shell (42) and the ring plate (41); A feed inlet (43) is provided on the housing (42); An air intake structure (44) is installed on the mounting plate (31), and a pipe (45) for communication is installed between the air intake structure (44) and the housing (42). A filter plate (46) is installed inside the housing (42) to prevent yarn from entering the pipe (45).

3. The continuous yarn tensile strength rapid detection device according to claim 2, characterized in that: The air intake structure (44) includes: A cylinder (441) is fixedly installed on the mounting plate (31); A disc (442) is slidably mounted inside the cylinder (441); Rotate the lead screw (443) mounted on the mounting plate (31), the lead screw (443) being threadedly connected to the disc (442); An air inlet and an air outlet are provided on the cylinder (441). A first blocking plate (444) and a second blocking plate (445) are respectively connected to the air inlet and the air outlet. A spring one and a spring two are installed between the first blocking plate (444) and the second blocking plate (445) and the cylinder (441). The air inlet is connected to the pipe (45). Gear three (446) is fixedly installed on the lead screw (443); A one-way transmission gear set (447) is used for transmission. The one-way transmission gear set (447) is rotatably mounted on the mounting plate (31). The second gear (310) rotates and drives the third gear (446) to rotate through the one-way transmission gear set (447).

4. The continuous yarn tensile strength rapid detection device according to claim 1, characterized in that: It also includes a position detection component (5), which includes: A clamping structure (51) is mounted on the mounting plate (31), the clamping structure (51) including a third clamping plate (511) and a fourth clamping plate (512). A timer (52) is mounted on the mounting plate (31); A telescopic rod (53) is installed on the mounting plate (31). A first plate (54) is installed at the end of the telescopic rod (53). A second plate (55) is slidably installed on the first plate (54). A switch (56) is installed between the first plate (54) and the second plate (55). The switch (56) is used to control the opening and closing of the timer (52).

5. The continuous yarn tensile strength rapid detection device according to claim 4, characterized in that: The clamping structure (51) further includes a connecting plate (513) and a third annular plate (514). The connecting plate (513) is fixedly mounted on the mounting plate (31). A third plate (515) is fixedly mounted on the connecting plate (513). The third plate (515) is fixedly connected to the fourth clamping plate (512). The third clamping plate (511) is slidably connected to the third plate (515). The third annular plate (514) is rotatably mounted on the mounting plate (31). The third annular plate (514) is threadedly connected to the third annular plate (514). There is a round rod (516), which is slidably connected to the connecting plate (513). A round rod (517) is slidably connected to the round rod (516). A spring (4) is installed between the round rod (516) and the round rod (517). The round rod (517) is fixedly connected to the third clamping plate (511). A gear (518) is fixedly installed on the third annular plate (514). A rack plate (519) for driving the gear (518) to rotate is fixedly installed on the machine body (1).

6. The continuous yarn tensile strength rapid detection device according to claim 1, characterized in that: The clamping structure (21) includes: Mounting base (211) installed on the body (1); Two fifth clamping plates (212) are mounted on the mounting base (211), one of which is slidably connected to the mounting base (211); A cylinder three (213) is used to drive the fifth clamping plate (212) to slide. One end of the cylinder three (213) is connected to the fifth clamping plate (212), and the other end of the cylinder three (213) is connected to the machine body (1).

7. A method for detecting the tensile strength of continuous yarn, applicable to the rapid tensile strength detection device for continuous yarn as described in any one of claims 1-6, characterized in that: Includes the following steps: S1. Preparation before work: The yarn is wound on the machine body (1), and the ends of the yarn are clamped by the feeding assembly (3); S2. Feeding operation: Control the feeding component (3) to rotate so that the yarn passes through the tension detection component (2) and control the two clamping structures (21) in the tension detection component (2) to hold the yarn; S3. Tension detection: The cylinder one (23) of the detection component is activated to make the sliding clamping structure (21) of the sliding assembly slide, while the other clamping structure (21) remains stationary. The yarn is stretched until it breaks. After the yarn breaks, the cylinder one (23) resets. During this process, the force sensor (22) collects and transmits tension data in real time. S4. Broken yarn cleaning: Control the clamping structure (21) of the sliding assembly to loosen the yarn, the feeding assembly (3) is reversed and reset, and control the receiving shell (42) of the collecting assembly (4) to wrap the first clamping plate (35) and the second clamping plate (36) of the feeding assembly (3), while controlling the suction structure (44) of the collecting assembly (4) to start and the first clamping plate (35) and the second clamping plate (36) to rotate and loosen the claws, sucking the broken yarn into the receiving shell (42) for storage. After collection is completed, the receiving shell (42) is reset. S5. Reset: After the feeding assembly (3) is reset, it controls its first clamping plate (35) and second clamping plate (36) to clamp the yarn between the yarn roll and another clamping structure (21), and then controls the clamping structure (21) to release the yarn; S6. Continuous operation: Repeat steps S to S to achieve continuous yarn feeding and inspection.

8. The method for detecting the tensile strength of continuous yarn according to claim 7, characterized in that: Before step 3, the clamping structure (51) of the controllable position detection component (5) clamps the yarn. After step 3, the sliding assembly clamping structure (21) releases the yarn, and the clamping plate of the feeding component (3) rotates to wind the yarn. At the same time, the timer (52) records the winding time.

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