High-temperature yarn twisting device with tension self-adaptive adjustment

Abstract

This invention discloses a high-temperature fabric yarn twisting device with adaptive tension adjustment. The invention relates to the field of yarn twisting technology and includes a working box. A baffle is rotatably connected to the side wall of the working box, and a mounting rod is fixedly connected to the inner wall of the top of the working box. One end of the mounting rod is fixedly connected to a twister. This invention can automatically and in reverse fine-tune the spatial position of the pay-off and take-up drums according to the offset signal, ensuring that the yarn is always kept at the center of the twister axis to complete the twisting operation. Compared to traditional manual calibration methods, this structure can achieve real-time closed-loop correction in all weather conditions, eliminating the lag and human error of manual calibration, effectively offsetting the additional stress caused by yarn deviation, and avoiding the problem of yarn stress concentration and breakage. Simultaneously, it stabilizes the yarn guideline, ensuring uniform twist throughout the yarn, and the take-up end can be adjusted slightly to ensure that the twisted yarn is evenly distributed on the surface of the take-up drum, optimizing the neatness of the finished winding.

Description

Technical Field

[0001] This invention belongs to the field of yarn twisting technology, and particularly relates to a high-temperature fabric yarn twisting device with adaptive tension adjustment. Background Technology

[0002] High-temperature fabric yarns have special material properties, and the twisting and forming process has high requirements for the yarn position, tension and conveying stability.

[0003] Currently, conventional yarn twisting equipment on the market has a fixed structure and mostly adopts a fixed unwinding and take-up station layout. During continuous unwinding, as the outer diameter of the yarn roll changes, the yarn exit point will gradually shift. The equipment does not have the ability to automatically align and correct, and the yarn cannot be stably positioned in the center of the twister. This easily leads to local stress concentration, which not only easily causes yarn breakage and loss, but also results in inconsistent twist of the finished product and difficulty in unifying the processing quality. Meanwhile, traditional equipment can only maintain basic yarn feeding and lacks real-time tension detection and adaptive adjustment mechanisms. During the twisting process, the yarn tension fluctuates frequently due to the influence of operating speed and yarn resistance. Abnormal tension cannot be corrected in time, which can easily lead to problems such as yarn loosening and stretching deformation, making it difficult to ensure the smooth operation of continuous twisting. In addition, existing equipment relies solely on the yarn conveying support of the two end rolls. When the yarn in the pay-off spool is nearly exhausted, the end yarn lacks an effective clamping and support structure, making it prone to slippage and misalignment. The yarn in the finishing section cannot complete the twisting and winding process, resulting in not only a waste of raw materials but also a significant reduction in the overall processing efficiency of the equipment. This makes it difficult to meet the needs of high-quality, full-process high-temperature fabric yarn twisting production.

[0004] To address these issues, we propose a high-temperature yarn twisting device with adaptive tension adjustment. Summary of the Invention

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A high-temperature fabric yarn twisting device with adaptive tension adjustment includes a working box. A baffle is rotatably connected to the side wall of the working box. An installation rod is fixedly connected to the inner wall of the top of the working box. A twister is fixedly connected to one end of the installation rod. Position adjustment components are symmetrically provided on the inner walls of both ends of the working box for feeding and taking back the high-temperature fabric yarn to be twisted and adjusting the feeding and taking back positions. A position detection component is fixedly connected to the inner wall of the top of the working box for detecting whether the high-temperature fabric yarn is in the middle position of the twister. A tension detection component is provided on one side of the position detection component for detecting the tension of the high-temperature fabric yarn. A yarn-carrying component is provided on the bottom side wall of the working box to ensure that the end of the high-temperature fabric yarn can complete the twisting and take-back process.

[0006] Preferably, the position adjustment component includes first grooves symmetrically opened on the inner walls of both ends of the work box, a first electric slide rail fixedly connected to the inner wall of each of the first grooves, a first slide plate slidably connected to the side wall of the first electric slide rail, a fixed plate fixedly connected to the side wall of the first slide plate, and a second electric slide rail fixedly connected to the inner wall of the fixed plate.

[0007] Preferably, a second sliding plate is slidably connected to the side wall of the second electric slide rail, a first electric telescopic rod is fixedly connected to the side wall of the second sliding plate, a U-plate is fixedly connected to the telescopic end of the first electric telescopic rod, two seventh electric telescopic rods are symmetrically rotatably connected to the inner walls of both ends of the U-plate, a support rod is fixedly connected to the telescopic end of each of the seventh electric telescopic rods, and a first motor is fixedly connected to the side wall of the U-plate.

[0008] Preferably, the output end of the first motor passes through the side wall of the U-plate and is fixedly connected to one end of one of the seventh electric telescopic rods. The rod wall of the support rod is provided with a plurality of second grooves, and the inner wall of each of the second grooves is fixedly connected to a second electric telescopic rod. The telescopic ends of each of the second electric telescopic rods are fixedly connected to a clamping plate.

[0009] Preferably, the position detection assembly includes two connecting rods symmetrically fixedly connected to the inner wall of the top of the working box about the twister. One end of each connecting rod is fixedly connected to a detection ring, and the inner wall of the detection ring is fixedly connected to a plurality of connecting cylinders arranged in a ring inside the detection ring.

[0010] Preferably, a pressure sensor is fixedly connected to the inner wall of the connecting cylinder, a detection spring is fixedly connected to the detection end of the pressure sensor, a detection rod is fixedly connected to one end of the detection spring, a detection plate is fixedly connected to one end of the detection rod, and the rod wall of the detection rod abuts against the inner wall of the connecting cylinder.

[0011] Preferably, the tension detection assembly includes a side plate fixedly connected to the side wall of one of the detection rings, a fourth electric telescopic rod fixedly connected to the bottom side wall of the side plate, a fixed cylinder fixedly connected to the telescopic end of the fourth electric telescopic rod, a connecting spring fixedly connected to the inner wall of the top end of the fixed cylinder, and a side rod fixedly connected to one end of the connecting spring.

[0012] Preferably, a connecting block is fixedly connected to one end of the side rod, a detection wheel is rotatably connected to the bottom side wall of the connecting block, a sliding groove is provided on the inner wall of the fixed cylinder, a slider is slidably connected to the inner wall of the sliding groove, and the side wall of the slider is fixedly connected to the rod wall of the side rod.

[0013] Preferably, the inner wall of the fixed cylinder is provided with a third groove, and the inner wall of the third groove is fixedly connected with a first conductive plate, a second conductive plate, and a third conductive plate from top to bottom. The side rod is fixedly connected with a fourth conductive plate, and the conductive surface of the fourth conductive plate is on the same plane as the conductive surfaces of the first conductive plate, the second conductive plate, and the third conductive plate.

[0014] Preferably, the wire assembly includes two fourth grooves symmetrically formed on the inner wall of the bottom of the working box about the twister. A third electric slide rail is fixedly connected to the inner wall of the fourth groove. Two third sliding plates are slidably connected to the top side wall of the third electric slide rail. A fifth electric telescopic rod is fixedly connected to the top side wall of the third sliding plate. A clamping plate is fixedly connected to the telescopic end of the fifth electric telescopic rod. Two sixth electric telescopic rods are symmetrically fixedly connected to the inner walls of both ends of the clamping plate. A clamping block is fixedly connected to the telescopic end of the sixth electric telescopic rod.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention relies on the cooperation of a position detection component and a position adjustment component. Utilizing a detection plate and pressure sensor arranged in a ring array inside the detection ring, it monitors the yarn's path in real time from all angles, accurately capturing radial deviations. Simultaneously, it incorporates a two-dimensional adjustment structure with a first and second electric slide rail, working in conjunction with a first electric telescopic rod to achieve height adaptation. This allows for automatic reverse fine-tuning of the spatial positions of the pay-off and take-up drums based on deviation signals, ensuring the yarn remains at the twister's axis during twisting. Compared to traditional manual calibration methods, this structure achieves real-time closed-loop correction around the clock, eliminating the lag and human error of manual calibration, effectively offsetting the additional stress caused by yarn deviation, and avoiding stress concentration and breakage. It also stabilizes the yarn path reference, ensuring uniform twist throughout the yarn, significantly improving the twisting quality of high-temperature fabric yarns. Furthermore, the take-up end can be adjusted slightly to ensure the twisted yarn is evenly distributed on the take-up drum surface, optimizing the finished product's winding regularity.

[0016] This invention adds an independent tension detection component, which dynamically monitors the yarn surface by directly contacting the detection wheel. Combined with the elastic deformation characteristics of the connecting spring, the fourth conductive plate mounted on the linkage side rod contacts and conducts electricity with three different functional conductive plates inside the fixed cylinder, thus distinguishing between high tension, standard tension, and low tension operating conditions. The device can autonomously drive the first electric telescopic rods on both sides according to different operating conditions, dynamically adjusting the relative distance between the pay-off and take-up drums, providing bidirectional adaptive compensation for yarn tension without manual intervention or machine downtime for adjustments. This structure can adapt to the complex conditions of the entire twisting process, balancing the internal tension of the yarn in real time, and maintaining the yarn at a standard state suitable for twisting high-temperature fabric yarns. It eliminates problems such as high-tension yarn breakage and low-tension loosening, without interrupting the twisting process, ensuring long-term continuous operation of the equipment, effectively improving overall production efficiency, and is compatible with twisting operations of various specifications of high-temperature fabric yarns.

[0017] This invention features symmetrically assembled yarn-carrying components at the bottom of the working box. A third electric slide rail drives the lateral displacement of the third sliding plate. Combined with a fifth and sixth electric telescopic rod, the height and opening / closing state of the clamping blocks are adjusted bidirectionally. This allows for the clamping and support of the nearly exhausted yarn at the end of the yarn roll in the pay-off and take-up sections through alternating clamping blocks, replacing the empty roll and completing the yarn traction and conveying process. This structure seamlessly supports the last section of yarn, filling the operational blind spots of traditional twisting equipment. It provides stable support for the end yarn throughout the entire process, ensuring that the yarn can complete the winding, twisting, and take-up processes normally from initial pay-off to the exhaustion of the roll, without discarding residual yarn and reducing raw material loss. Simultaneously, it eliminates the need for manual yarn handling, reducing labor intensity and further improving the automation level and overall adaptability of the device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a partial structural diagram of the present invention. Figure 1 ; Figure 3 For the present invention Figure 2 Enlarged view of part A; Figure 4 This is a partial structural diagram of the present invention. Figure 2 ; Figure 5 This is a partial structural diagram of the present invention. Figure 3 ; Figure 6 This is a cross-sectional view of part of the structure of the present invention. Figure 1 ; Figure 7 This is a cross-sectional view of part of the structure of the present invention. Figure 2 ; Figure 8This is a cross-sectional view of part of the structure of the present invention. Figure 3 .

[0019] In the diagram: 1. Working box; 2. Baffle; 3. Mounting rod; 4. Twisting device; 5. Position adjustment assembly; 51. First groove; 52. First electric slide rail; 53. First sliding plate; 54. Fixing plate; 55. Second electric slide rail; 56. Second sliding plate; 57. First electric telescopic rod; 58. U-plate; 59. Support rod; 510. First motor; 511. Second groove; 512. Second electric telescopic rod; 513. Clamping plate; 514. Seventh electric telescopic rod; 6. Position detection assembly; 61. Connecting rod; 62. Detection ring; 64. Connecting cylinder; 65. Pressure sensor; 66. Detection spring 67. Detection rod; 68. Detection plate; 7. Tension detection assembly; 71. Side plate; 72. Fourth electric telescopic rod; 73. Fixed cylinder; 74. Connecting spring; 75. Side rod; 76. Connecting block; 77. Detection wheel; 78. Slide groove; 79. Slider; 710. Third groove; 711. First conductive plate; 712. Second conductive plate; 713. Third conductive plate; 714. Fourth conductive plate; 8. Wire assembly; 81. Fourth groove; 82. Third electric slide rail; 83. Third slide plate; 84. Fifth electric telescopic rod; 85. Clamping plate; 86. Sixth electric telescopic rod; 87. Clamping block. Detailed Implementation

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

[0021] The following electrical components are all electrically connected to the external PLC controller.

[0022] Reference Figure 1 - Figure 8 A high-temperature fabric yarn twisting device with adaptive tension adjustment includes a working box 1. A baffle 2 is rotatably connected to the side wall of the working box 1. An installation rod 3 is fixedly connected to the inner wall of the top of the working box 1. A twister 4 is fixedly connected to one end of the installation rod 3. Position adjustment components 5 are symmetrically opened on the inner walls of both ends of the working box 1 for feeding and taking back the high-temperature fabric yarn to be twisted and adjusting the feeding and taking back positions. A position detection component 6 is fixedly connected to the inner wall of the top of the working box 1 for detecting whether the high-temperature fabric yarn is in the middle position of the twister 4. A tension detection component 7 is provided on one side of the position detection component 6 for detecting the tension of the high-temperature fabric yarn. A yarn-carrying component 8 is opened on the bottom side wall of the working box 1 to ensure that the end of the high-temperature fabric yarn can complete the twisting and take-back process.

[0023] In this embodiment, the position adjustment component 5 includes first grooves 51 symmetrically opened on the inner walls of both ends of the work box 1. The inner walls of the first grooves 51 are fixedly connected to first electric slide rails 52. The side walls of the first electric slide rails 52 are slidably connected to first slide plates 53. The side walls of the first slide plates 53 are fixedly connected to fixed plates 54. The inner walls of the fixed plates 54 are fixedly connected to second electric slide rails 55. The second electric slide rail 55 is slidably connected to the side wall of the second slide rail 55. The side wall of the second slide rail 56 is fixedly connected to the first electric telescopic rod 57. The telescopic end of the first electric telescopic rod 57 is fixedly connected to the U plate 58. The inner walls of both ends of the U plate 58 are symmetrically rotatably connected to two seventh electric telescopic rods 514. The telescopic ends of the seventh electric telescopic rods 514 are all fixedly connected to the support rods 59. The side wall of the U plate 58 is fixedly connected to the first motor 510. The output end of the first motor 510 passes through the side wall of the U-plate 58 and is fixedly connected to one end of one of the seventh electric telescopic rods 514. The rod wall of the support rod 59 is provided with multiple second grooves 511. The inner wall of each second groove 511 is fixedly connected to a second electric telescopic rod 512. The telescopic ends of each second electric telescopic rod 512 are fixedly connected to a clamping plate 513.

[0024] Specifically, the first groove 51 serves as the mounting base for the first electric slide rail 52, defining its installation position and enabling integrated assembly of the position adjustment component 5. The first electric slide rail 52 drives the first slide plate 53 to slide laterally, fine-tuning the lateral position of the pay-off and take-up reels. The first slide plate 53 supports the fixing plate 54 and all rear-end components. The fixing plate 54 connects the first slide plate 53 to the second electric slide rail 55, providing a fixed mounting carrier for the second electric slide rail 55. The second electric slide rail 55 drives the second slide plate 56 to slide longitudinally, cooperating with the first electric slide rail 52 to achieve two-dimensional planar orientation adjustment of the coil. The second slide plate 56 supports the first electric telescopic rod 57 and the clamping mechanism. The first electric telescopic rod 57 vertically adjusts the height of the U-plate 58, adapting to pay-off and take-up reels of different diameters. The height of the bobbin and yarn routing; the U-plate 58 serves as the supporting frame of the overall clamping mechanism, integrating the seventh electric telescopic rod 514 and the first motor 510; the seventh electric telescopic rod 514 is used to push the support rod 59 into the openings at both ends of the roll, completing the axial positioning support of the roll; the support rod 59 is used to cooperate with the clamping plate 513 to fix the embedded pay-off and take-up bobbins; the first motor 510 is used to drive the seventh electric telescopic rod 514 and the support rod 59 to rotate as a whole, thereby driving the roll to rotate and completing the yarn pay-off and take-up operations; the second groove 511 is the receiving and mounting groove for the second electric telescopic rod 512, protecting the telescopic rod structure and limiting the installation position; the second electric telescopic rod 512 is used to drive the clamping plate 513 to move towards or away from each other; the clamping plate 513 is used to clamp and fix from the inner wall of the roll, preventing the roll from loosening, spinning freely, or falling off during high-speed rotation.

[0025] In this embodiment, the position detection component 6 includes two connecting rods 61 that are symmetrically fixedly connected to the inner wall of the top of the working box 1 about the twister 4. One end of the connecting rod 61 is fixedly connected to a detection ring 62. The inner wall of the detection ring 62 is fixedly connected to a plurality of connecting cylinders 64, which are arranged in a ring inside the detection ring 62. A pressure sensor 65 is fixedly connected to the inner wall of the connecting cylinder 64. A detection spring 66 is fixedly connected to the detection end of the pressure sensor 65. A detection rod 67 is fixedly connected to one end of the detection spring 66. A detection plate 68 is fixedly connected to one end of the detection rod 67. The rod wall of the detection rod 67 abuts against the inner wall of the connecting cylinder 64.

[0026] Specifically, the connecting rod 61 is fixed to the inner wall of the top of the working box 1 to suspend and support the detection ring 62, so that the detection ring 62 is coaxial with the inlet and outlet positions of the twister 4; the detection ring 62 is an annular detection base for the high-temperature fabric yarn to pass through, and also integrates all detection components; the connecting cylinder 64 is fixed in an annular array to the inner wall of the detection ring 62, serving as a sealed mounting cavity for the pressure sensor 65 and the detection spring 66, and constraining the movement trajectory of the detection rod 67; the pressure sensor 65 is the core of the signal acquisition of this component, used to receive the extrusion pressure transmitted by the detection spring 66. The detection plate 68 is used to determine whether the yarn has shifted. The detection spring 66 acts as a buffer, shock absorber, and resetter to prevent damage from hard impacts to the yarn. At the same time, it pushes the detection rod 67 to reset after the yarn leaves the detection plate 68. The detection rod 67 is used to transmit the compressive force on the detection plate 68, converting mechanical displacement into spring pressure. The detection plate 68 is in direct contact with the shifted high-temperature fabric yarn, increasing the contact area and accurately sensing the radial shift of the yarn. The outer wall of the detection rod 67 is in close contact with the inner wall of the connecting cylinder 64, limiting the detection rod 67 to only horizontal linear extension and retraction, and preventing jamming.

[0027] In this embodiment, the tension detection assembly 7 includes a side plate 71 fixedly connected to the side wall of one of the detection rings 62, a fourth electric telescopic rod 72 fixedly connected to the bottom side wall of the side plate 71, a fixed cylinder 73 fixedly connected to the telescopic end of the fourth electric telescopic rod 72, a connecting spring 74 fixedly connected to the inner wall of the top end of the fixed cylinder 73, and a side rod 75 fixedly connected to one end of the connecting spring 74. A connecting block 76 is fixedly connected to one end of the side rod 75. A detection wheel 77 is rotatably connected to the bottom side wall of the connecting block 76. A sliding groove 78 is provided on the inner wall of the fixed cylinder 73. A slider 79 is slidably connected to the inner wall of the sliding groove 78. The side wall of the slider 79 is fixedly connected to the rod wall of the side rod 75. The inner wall of the fixed cylinder 73 is provided with a third groove 710. The inner wall of the third groove 710 is fixedly connected from top to bottom with a first conductive plate 711, a second conductive plate 712, and a third conductive plate 713. The side rod 75 is fixedly connected with a fourth conductive plate 714. The conductive surface of the fourth conductive plate 714 is on the same plane as the conductive surfaces of the first conductive plate 711, the second conductive plate 712, and the third conductive plate 713.

[0028] Specifically, the side plate 71 is used to mount and fix the overall tension detection assembly 7 on the side wall of the detection ring 62, ensuring that the detection wheel 77 is always in the yarn routing area; the fourth electric telescopic rod 72 is used to vertically adjust the overall height of the fixed cylinder 73 to adapt to yarns with different routing heights and complete the detection pre-tightening operation; the fixed cylinder 73 is a bearing housing with internal springs, conductive plates, and sliding structures; the connecting spring 74 is used to buffer yarn tension fluctuations and generate different compression amounts according to the tension magnitude to determine the tension range; the side rod 75 is used to link the detection wheel 77 and the fourth conductive plate 714 to synchronously complete displacement adjustment and signal conduction; the connecting block 76 is used to rotate and connect the detection wheel 77 to reduce the rotational friction resistance of the detection wheel 77; the detection wheel 77 directly contacts the high-temperature yarn. The outer surface of the yarn rolls in contact, sensing changes in the vertical tension of the yarn in real time; the groove 78, in conjunction with the slider 79, limits the movement trajectory of the side rod 75, ensuring that the side rod 75 can only extend and retract vertically, preventing the conductive plates from misaligning and failing to conduct; the third groove 710 is the mounting groove for the three-level conductive plates, centrally storing the conductive components; the first conductive plate 711 corresponds to the tension over-limit condition, and outputs an excessive tension electrical signal after contacting the fourth conductive plate 714; the second conductive plate 712 corresponds to the standard tension condition, serving as the reference point for normal operation of the device; the third conductive plate 713 corresponds to the tension under-load condition, and outputs an insufficient tension electrical signal after contacting the fourth conductive plate 714; the fourth conductive plate 714 moves vertically synchronously with the side rod 75, and achieves tension level identification by contacting different conductive plates to conduct electricity.

[0029] In this embodiment, the wire assembly 8 includes two fourth grooves 81 symmetrically opened on the inner wall of the bottom end of the working box 1 about the twister 4. The inner wall of the fourth groove 81 is fixedly connected to a third electric slide rail 82. The top side wall of the third electric slide rail 82 is slidably connected to two third slide plates 83. The top side wall of the third slide plates 83 is fixedly connected to a fifth electric telescopic rod 84. The telescopic ends of the fifth electric telescopic rod 84 are fixedly connected to a clamping plate 85. The inner walls of both ends of the clamping plate 85 are symmetrically fixedly connected to two sixth electric telescopic rods 86. The telescopic ends of the sixth electric telescopic rods 86 are fixedly connected to clamping blocks 87.

[0030] Specifically, the fourth groove 81 is located on the inner wall of the bottom of the work box 1 to house and fix the third electric slide rail 82, reducing the space occupied by the components; the third electric slide rail 82 is used to drive the third slide plate 83 to slide laterally along the yarn direction, realizing the relay yarn replenishment operation of the clamping block 87; the third slide plate 83 serves as the supporting base for the upper fifth electric telescopic rod 84, the clamping plate 85, and the claw structure; the fifth electric telescopic rod 84 is used to vertically adjust the height of the clamping plate 85, so that the clamping block 87 can accurately align the high-temperature fabric yarn at different height positions; the clamping plate 85 is the mounting frame for the sixth electric telescopic rod 86, used to integrate the clamping and execution components; the sixth electric telescopic rod 86 is used to drive the clamping blocks 87 on both sides to open and close in opposite directions, completing the clamping and loosening actions; the clamping block 87 directly contacts the yarn surface, replacing the yarn roll at the end of the unwinding drum to clamp and support the yarn, and multiple sets of clamping blocks 87 alternately relay to avoid the yarn at the end being suspended and detached, ensuring the smooth completion of the twisting and take-up operations at the end of the yarn.

[0031] The operating principle of the present invention is now described as follows: In this invention, before twisting the high-temperature fabric yarn, the operator first completes the pre-operation assembly and feeding process: the pay-off spool containing the original high-temperature fabric yarn is placed inside the work box 1 on the inside of the U-plate 58 of one of the position adjustment components 5, and the installation angle of the pay-off spool is adjusted so that the annular openings on both sides of the pay-off spool are aligned with the telescopic ends of the two sets of seventh electric telescopic rods 514 inside the U-plate 58; then the controller drives the seventh electric telescopic rods 514 to start synchronously and extend outward, pushing the end-fixed support rods 59 into the openings on both sides of the pay-off spool, completing the radial positioning of the pay-off spool; then the second electric telescopic rod 512 installed inside the second groove 511 of the support rod 59 is started, and the telescopic end of the second electric telescopic rod 512 drives the clamping plate 513 to move towards the inner wall of the pay-off spool, using the clamping plate 513 to clamp the inner wall of the pay-off spool, thereby locking and fixing the pay-off spool from the inside, avoiding problems such as free rotation, deviation and falling off during the pay-off spool operation; Following the same assembly procedure, the workers clamp and fix the take-up drum inside another set of symmetrically arranged U-plates 58. The take-up drum and the pay-off drum have the same structural installation method and fixing logic. After the assembly is completed, the workers peel off the high-temperature cloth yarn end from the outer end of the pay-off drum and thread the yarn through the detection ring 62 of the detection component 6 on the same side, the twister 4 at the center of the work box 1, and the detection ring 62 on the other side in sequence to form a complete straight-line threading channel. During the threading process, the first motor 510 on the side of the pay-off drum can be activated as needed. The output end of the first motor 510 passes through the side wall of the U-plate 58 and is fixed to the seventh electric telescopic rod 514, which can drive the seventh electric telescopic rod 514, the support rod 59, and the pay-off drum to rotate synchronously, assisting the workers in completing the threading operation. After threading, the free end of the yarn is fixed to the wire fixing component on the outside of the take-up drum, thus completing all the preparations before the equipment operation. After the preparation process is completed, the twister 4, the two side position adjustment components 5, the position detection component 6, the tension detection component 7, and the yarn assembly 8 are activated simultaneously to officially start the continuous twisting operation: the twister 4 performs high-speed twisting treatment on the high-temperature fabric yarn that runs through it; at the same time, the first motor 510 corresponding to the pay-off spool and the take-up spool are driven synchronously in the same direction. The pay-off spool rotates at a uniform speed to release the original high-temperature fabric yarn, and the take-up spool rotates synchronously to wind up and store the high-temperature fabric yarn that has been twisted by the twister 4, thus forming an integrated continuous operation process of "pay-off - correction - twisting - tension control - take-up". During normal twisting and winding, the yarn release point of the unwinding drum will continuously shift due to the decreasing outer diameter of the yarn roll and the displacement of the yarn winding layer. This directly causes the yarn to deviate from the center reference position of the twister 4, resulting in stress concentration on one side of the yarn. This can easily lead to problems such as yarn breakage in high-temperature fabrics, uneven twisting, and substandard finished product quality. This device monitors the yarn deviation in real time through the position detection component 6 and achieves fully automatic correction in conjunction with the position adjustment component 5: Under normal yarn routing conditions, there is no contact between the yarn and the detection plate 68 inside the detection ring 62; when the yarn deviates and touches the detection plate 68, the deviation pressure will be transmitted to the detection rod 67 through the detection plate 68. The detection rod 67 compresses the matching detection spring 66, and the pressure sensor 65 collects the pressure signal received by the detection spring 66 in real time and transmits the analog signal to the PLC controller. After determining the direction and amount of yarn deviation, the PLC controller sends an adjustment command to the corresponding side position adjustment component 5: activating the first electric slide rail 52 inside the first groove 51 and the second electric slide rail 55 inside the fixing plate 54. The first electric slide rail 52 drives the first sliding plate 53 to complete longitudinal displacement, and the second electric slide rail 55 drives the second sliding plate 56 to complete lateral displacement. This two-dimensional free-degree displacement, in conjunction with the U-plate 58 and the clamped and fixed pay-off and take-up drums, allows for synchronous fine-tuning of their positions. The adjustment direction is always opposite to the yarn deviation direction until all pressure sensors 65 inside the detection ring 62 output no pressure signal, indicating that the yarn has returned to the center reference position of the twister 4. Subsequently, the PLC controller shuts down the corresponding electric slide rail, completing a single yarn deviation correction. In addition, during the take-up operation, the PLC controller can periodically drive the side position adjustment component 5 of the take-up drum to make small back-and-forth movements, ensuring that the twisted high-temperature fabric yarn is evenly distributed and wound on the surface of the take-up drum, improving the neatness of the finished product winding. During the synchronous cycle of the entire twisting operation, the tension detection component 7 monitors the real-time tension of the yarn around the clock and achieves adaptive dynamic adjustment: At the beginning of the operation, the controller activates the fourth electric telescopic rod 72 at the bottom of the side plate 71, driving the fixed cylinder 73 to move vertically downward, so that the detection wheel 77 at the bottom of the fixed cylinder 73 is in close contact with the outer surface of the high-temperature fabric yarn; supported by the yarn, the detection wheel 77 and the connecting block 76 synchronously push the side rod 75 to retract into the fixed cylinder 73, and the slider 79 mounted on the outside of the side rod 75 slides directionally along the inner wall of the groove 78, restricting the side rod 75 to only make vertical linear displacement, avoiding the problem of offset and jamming. The staff pre-calibrates the benchmark working conditions. When the fourth conductive plate 714 fixed on the side rod 75 contact and conducts with the second conductive plate 712 inside the third groove 710, it is determined that the current yarn tension is within the standard rated range. At this time, the PLC controller locks the fourth electric telescopic rod 72 to maintain the current working height of the detection wheel 77. During the operation of the device, the tension adaptive adjustment logic is divided into two working conditions: First, when the speed of unwinding and take-up is unbalanced or the resistance of the yarn increases, the yarn tension is overloaded. The yarn pushes the detection wheel 77 in the opposite direction, forcing the side rod 75 to further compress the connecting spring 74 and retract into the fixed cylinder 73 until the fourth conductive plate 714 contacts and conducts with the first conductive plate 711. The PLC controller determines that the yarn tension is too high. Then, it drives the first electric telescopic rods 57 on both sides to extend outward synchronously, pushing the unwinding drum and take-up drum to move in opposite directions, reducing the distance between the two material rolls, releasing the internal stress of the yarn, until the fourth conductive plate 714 falls back and reconnects with the second conductive plate 712, shutting off the first electric telescopic rods 57 and maintaining the standard tension. Secondly, when the yarn slacks and the threading resistance decreases, the yarn tension is lower than the rated standard. The connecting spring 74 elastically resets and pushes the side rod 75 to extend outward to the fixed cylinder 73. The fourth conductive plate 714 moves down and contacts the third conductive plate 713 to conduct electricity. The PLC controller determines that the yarn tension is insufficient and drives the first electric telescopic rods 57 on both sides to retract inward synchronously, so that the pay-off cylinder and take-up cylinder move in opposite directions, increasing the gap between the material rolls and tightening the slack yarn until the fourth conductive plate 714 returns to the reference position corresponding to the second conductive plate 712, completing the low tension condition correction. Through the three-level conductive plate zone monitoring, the closed-loop adaptive control of the yarn tension throughout the twisting process is realized. Addressing the industry challenges of insufficient yarn support, easy yarn breakage, and inability to complete the final twisting and winding of the yarn bobbin, this device utilizes a yarn-carrying assembly 8 to achieve continuous yarn clamping and replenishment throughout the entire process. The third electric slide rail 82 inside the fourth groove 81 at the bottom of the work box 1 serves as the power reference for the yarn-carrying assembly 8, remaining in standby mode during the initial operation. When the PLC controller detects that the remaining yarn diameter on the pay-off bobbin is lower than a preset threshold, it immediately activates the yarn-carrying assembly 8 on the pay-off side. The third electric slide rail 82 drives the third slide plate 83 to slide laterally, moving the fifth electric telescopic rod 84 and the clamping plate 85 mounted at the top to the area to be replenished. The fifth electric telescopic rod 84 and the sixth electric telescopic rod 86 inside the clamping plate 85 are activated sequentially to adjust the spatial position of the clamping blocks 87, so that the two sets of clamping blocks 87 symmetrically clamp the outside of the high-temperature fabric yarn, providing stable support for the yarn instead of the final pay-off bobbin. Before the single clamping block 87 moves synchronously with the yarn and approaches the corresponding detection ring 62, losing its support, the PLC controller drives the other side's yarn assembly 8 to replicate the clamping action. The new clamping block 87 then takes over clamping the yarn, and the two sets of clamping blocks 87 seamlessly alternate. At the same time, the clamping block 87 that completed clamping earlier resets with the third slide plate 83. This cycle repeats, avoiding the problems of the end yarn being suspended, detached, or broken throughout the process. The operating logic of the yarn assembly 8 on the take-up side is completely consistent with that on the let-out side. It is specifically designed to receive the end yarn after twisting and forming, ensuring that the end section of the yarn can complete all twisting and winding processes normally. After all the high-temperature yarn on the surface of the pay-off spool has been twisted and completely wound into the take-up spool, the PLC controller resets all the actuators in sequence: the sixth electric telescopic rod 86 and the second electric telescopic rod 512 retract in sequence, releasing the clamping limit of the clamping block 87 and the clamping plate 513; all electric slide rails and electric telescopic rods return to their initial zero position, and the workers can then remove the empty pay-off spool and the fully wound take-up spool; then the device resets and stands by, and the above procedures can be repeated to carry out the twisting operation of the next batch of high-temperature yarn.

[0032] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A high-temperature yarn twisting device with adaptive tension adjustment, comprising a working box (1), characterized in that, The side wall of the work box (1) is rotatably connected to a baffle (2). The top inner wall of the work box (1) is fixedly connected to an installation rod (3). One end of the installation rod (3) is fixedly connected to a twister (4). The inner walls of both ends of the work box (1) are symmetrically provided with position adjustment components (5) for feeding and taking back the high-temperature fabric yarn that needs to be twisted and adjusting the feeding and taking back positions. The top inner wall of the work box (1) is fixedly connected with a position detection component (6) for detecting whether the high-temperature fabric yarn is in the middle position of the twister (4). One side of the position detection component (6) is provided with a tension detection component (7) for detecting the tension of the high-temperature fabric yarn. The bottom side wall of the work box (1) is provided with a yarn-carrying component (8) for ensuring that the end high-temperature fabric yarn can complete the twisting and take-back process. The position detection component (6) includes two connecting rods (61) that are symmetrically fixed to the inner wall of the top of the working box (1) about the twister (4). One end of the connecting rod (61) is fixedly connected to a detection ring (62). The inner wall of the detection ring (62) is fixedly connected to a plurality of connecting cylinders (64). The connecting cylinders (64) are arranged in a ring inside the detection ring (62). A pressure sensor (65) is fixedly connected to the inner wall of the connecting cylinder (64). A detection spring (66) is fixedly connected to the detection end of the pressure sensor (65). A detection rod (67) is fixedly connected to one end of the detection spring (66). A detection plate (68) is fixedly connected to one end of the detection rod (67). The rod wall of the detection rod (67) abuts against the inner wall of the connecting cylinder (64). The tension detection assembly (7) includes a side plate (71) fixedly connected to the side wall of one of the detection rings (62), a fourth electric telescopic rod (72) fixedly connected to the bottom side wall of the side plate (71), a fixed cylinder (73) fixedly connected to the telescopic end of the fourth electric telescopic rod (72), a connecting spring (74) fixedly connected to the inner wall of the top end of the fixed cylinder (73), and a side rod (75) fixedly connected to one end of the connecting spring (74). One end of the side rod (75) is fixedly connected to a connecting block (76), and the bottom side wall of the connecting block (76) is rotatably connected to a detection wheel (77). The inner wall of the fixed cylinder (73) is provided with a sliding groove (78), and the inner wall of the sliding groove (78) is slidably connected to a slider (79). The side wall of the slider (79) is fixedly connected to the rod wall of the side rod (75). The inner wall of the fixed cylinder (73) is provided with a third groove (710). The inner wall of the third groove (710) is fixedly connected from top to bottom with a first conductive plate (711), a second conductive plate (712), and a third conductive plate (713). The side rod (75) is fixedly connected with a fourth conductive plate (714). The conductive surface of the fourth conductive plate (714) is on the same plane as the conductive surfaces of the first conductive plate (711), the second conductive plate (712), and the third conductive plate (713). The wire assembly (8) includes two fourth grooves (81) symmetrically opened on the inner wall of the bottom end of the work box (1) about the twister (4). The inner wall of the fourth groove (81) is fixedly connected to a third electric slide rail (82). The top side wall of the third electric slide rail (82) is slidably connected to two third slide plates (83). The top side wall of the third slide plates (83) is fixedly connected to a fifth electric telescopic rod (84). The telescopic ends of the fifth electric telescopic rod (84) are fixedly connected to a clamping plate (85). The inner walls of both ends of the clamping plate (85) are symmetrically fixedly connected to two sixth electric telescopic rods (86). The telescopic ends of the sixth electric telescopic rods (86) are fixedly connected to a clamping block (87).

2. The high-temperature yarn twisting device with adaptive tension adjustment according to claim 1, characterized in that, The position adjustment component (5) includes a first groove (51) symmetrically opened on the inner wall of both ends of the work box (1). The inner wall of the first groove (51) is fixedly connected to a first electric slide rail (52). The side wall of the first electric slide rail (52) is slidably connected to a first slide plate (53). The side wall of the first slide plate (53) is fixedly connected to a fixing plate (54). The inner wall of the fixing plate (54) is fixedly connected to a second electric slide rail (55).

3. The high-temperature yarn twisting device with adaptive tension adjustment according to claim 2, characterized in that, The second electric slide rail (55) is slidably connected to the side wall of the second slide rail (55), and the side wall of the second slide rail (56) is fixedly connected to the first electric telescopic rod (57). The telescopic end of the first electric telescopic rod (57) is fixedly connected to the U plate (58). The inner walls of both ends of the U plate (58) are symmetrically rotated to connect to two seventh electric telescopic rods (514). The telescopic ends of the seventh electric telescopic rods (514) are all fixedly connected to the support rods (59). The side wall of the U plate (58) is fixedly connected to the first motor (510).

4. The high-temperature yarn twisting device with adaptive tension adjustment according to claim 3, characterized in that, The output end of the first motor (510) passes through the side wall of the U plate (58) and is fixedly connected to one end of one of the seventh electric telescopic rods (514). The support rod (59) has multiple second grooves (511) on its rod wall. The inner wall of each of the second grooves (511) is fixedly connected to a second electric telescopic rod (512). The telescopic ends of each of the second electric telescopic rods (512) are fixedly connected to a clamp (513).

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