A twisting device for vortex spinning core-spun yarn

Abstract

The present invention relates to the technical field of core-spun yarns, and in particular to a twisting device for vortex-spun core-spun yarns. The twisting device for vortex-spun core-spun yarns comprises vortex-spun yarns and twisting machines. In the present invention, interlayer fibers are added between the core yarn and the outer fiber, thereby playing a role of reinforcement and support, improving the strength and stability of the yarn. At the same time, different fibers are added to the core yarn and the outer fiber, so that the vortex-spun yarn has good elasticity and comfort, good wrinkle resistance and easy care, which can reduce wrinkles and deformation of textiles and improve the easy care of textiles.

Description

Technical Field

[0001] The invention relates to the technical field of core-spun yarns, and in particular provides a twisting device for vortex-spun core-spun yarns. Background Art

[0002] Core-spun yarn is a textile material, also called core yarn or covering yarn. It is composed of two or more yarns of different materials, one of which is wrapped in the outer layer of another yarn. Vortex-spun core-spun yarn is a core-spun yarn made by vortex spinning technology. It uses high-speed rotating airflow and centrifugal force to tightly wrap the fiber bundles together to form the structure of the core-spun yarn. Most of the existing core-spun vortex-spun yarns have simple structures and single functions, and cannot meet people's stringent requirements for yarns in many aspects.

[0003] At the same time, due to the instability of air flow rotation during vortex spinning, the arrangement and distribution of various fibers in the fiber bundle may be uneven when it is rotated and wrapped, which in turn leads to unstable internal structure of the yarn, and it is easy for fibers to fall off or break. At the same time, it may cause a large number of rough yarns and knots to form inside the produced yarn, making the surface of the produced yarn rough and uneven, and even affecting the strength, durability and dimensional stability of the yarn, seriously affecting the strength, appearance and service life of the yarn. Summary of the invention

[0004] Based on this, it is necessary to provide a twisting device for vortex spinning core-spun yarn to solve at least one technical problem in the background technology.

[0005] A twisting device for vortex-spun core-spun yarn comprises a vortex-spun yarn and a twisting machine. The vortex-spun yarn comprises a core yarn, an outer layer fiber and a sandwich fiber. The core yarn is composed of 50% to 60% polyester fiber, 10% to 20% nylon fiber and 10% to 40% aramid fiber, and the core yarn is a straight core structure without twisting; the outer layer fiber is composed of 40% to 60% cotton fiber, 20% to 30% polyester fiber, 5% silk fiber and 15% to 35% wool fiber. The outer layer fiber is wrapped around the outer wall of the core yarn in a regular wrapping manner, the sandwich fiber is composed of polyester fiber, and the sandwich fiber is arranged between the core yarn and the outer layer fiber. The twisting machine is used for twisting and stretching and winding the vortex-spun yarn.

[0006] As a further improvement of the present invention, the twisting machine includes an installation shell, a yarn feeding assembly, a twisting assembly and a winding assembly. The installation shell includes two installation base plates, two installation vertical boxes and a twisting frame. The bottoms of the two installation base plates are respectively installed at the two ends of the installation ground, and the two ends of the bottoms of the two installation vertical boxes are respectively installed on both sides of the two installation base plates, and the two installation vertical boxes are arranged oppositely. Each installation vertical box is hollow on both sides to form a hollow cavity, and a first driving motor is arranged in the hollow cavity. The inner side of the hollow cavity is concavely provided with a first rotating hole, and the first rotating hole is arranged opposite to the first driving motor. The bottom of the twisting frame is installed on the installation The middle of the ground, and the length direction of the twisting frame is perpendicular to the length direction of the mounting vertical box. A lifting frame is protruded from the top of the twisting frame away from one end of the yarn feeding assembly. A heating mounting frame is arranged on the top of the lifting frame. The heating mounting frame is a right-angled trapezoid. An air curtain air outlet is protruded inwardly from the bottom of the outer side of the heating mounting frame. The air curtain air outlet is inclined downward and connected to an external fan. Vertical mounting plates are protruded from the top of both ends of the heating mounting frame. Both ends of the yarn feeding assembly are respectively installed at one end of the two mounting vertical boxes, the twisting assembly is installed in the twisting frame and the heating mounting frame, and the winding assembly is installed at the other end of the two mounting vertical boxes.

[0007] As a further improvement of the present invention, the yarn feeding assembly includes a yarn feeding grabbing frame, two yarn feeding grabbing claws, two yarn feeding adjusting cylinders, a first conveying roller, two first transition mounting claws and two first transition adjusting cylinders, the two ends of the top of the yarn feeding grabbing frame are respectively rotatably mounted on one end of the top inner side of the two mounting vertical boxes, the two yarn feeding grabbing claws are respectively mounted on the two ends of the yarn feeding grabbing frame, one end of the two yarn feeding adjusting cylinders are respectively rotatably mounted on the middle of one end of the inner side of the two mounting vertical boxes, the output ends of the two yarn feeding adjusting cylinders are respectively rotatably mounted on the two ends of the middle part of the bottom surface of the yarn feeding grabbing frame, the two ends of the first conveying roller are respectively mounted on the output shafts of the two first driving motors at the same end, a first rotating platform is protruding from the middle part of the two first transition mounting claws, the first rotating platform is mounted on the middle part of the inner side of the mounting vertical box, and the first rotating platform is arranged adjacent to the first conveying roller, the bottom ends of the two first transition adjusting cylinders are respectively rotatably mounted on the two ends of the inner side of one of the mounting bottom plates, and the output shafts of the two first transition adjusting cylinders are respectively rotatably mounted on the bottom ends of the two first transition mounting claws.

[0008] As a further improvement of the present invention, the twisting assembly includes a transmission and pulling element, a loose thread defect removal element and a heat-sealing and stretching element. The transmission and pulling element is installed on the outside of the heating mounting frame, the loose thread defect removal element is installed on the top of the twisting frame, and the heat-sealing and stretching element is installed on the inside of the heating mounting frame.

[0009] As a further improvement of the present invention, the conveying and pulling elements include two pulling cylinders, two pulling tripods, two conveying pulling rollers, two linkage turntables and two linkage tripods. The top ends of the two pulling cylinders are respectively rotatably installed at the two ends of the top outside of the heating mounting frame, and one ends of the two pulling tripods are respectively rotatably installed at the two ends of the bottom outside of the heating mounting frame. The output shafts of the two pulling cylinders are respectively rotatably connected to the middle of the top surfaces of the two pulling tripods, and the two ends of the two conveying pulling rollers are respectively installed at the top and bottom of the outside of the two pulling tripods. The tops of the two linkage turntables are respectively installed at the two ends of the outside of the bottom surface of the heating mounting frame, and the inner sides of the tops of the two linkage turntables are respectively rotatably installed at the bottoms of the two linkage turntables. A rotating connecting rod is convexly provided on the outer sides of the tops of the two linkage tripods, and the tops of the two rotating connecting rods are respectively rotatably installed in the middle of the bottom surfaces of the two pulling tripods. A linkage adjustment slide groove is recessed on the inner side of the bottom of each linkage tripod.

[0010] As a further improvement of the present invention, the loose wire defect removal element includes two rotating mounting platforms, two rotating mounting plates, two loose wire control cylinders, a fixed defect removal roller, an adjustable defect removal roller and a mechanical scraper. The bottom ends of the two rotating mounting platforms are respectively mounted on the tops of the two ends of the twisting frame, and the middle parts of the two rotating mounting plates are respectively rotatably mounted on the tops of the two rotating mounting platforms. The two ends of one side of each rotating mounting plate are respectively recessed with a second rotating hole and an adjusting strip slide groove, a sliding blower is arranged in the adjusting strip slide groove, the adjusting strip slide groove is arranged adjacent to one end of the conveying and pulling element, a connecting shaft is arranged in the second rotating hole, the bottom ends of the two loose wire control cylinders are respectively rotatably mounted on the bottoms of the two ends of the twisting frame, the output shafts of the two loose wire control cylinders are respectively rotatably mounted on the outer ends of the two connecting shafts, and the two ends of the fixed defect removal roller are respectively mounted on the connecting shaft At the inner end of the shaft, the adjustment defect removal roller includes a defect removal rotating shaft, a defect removal adjustment airbag and a defect removal sleeve. The two ends of the defect removal rotating shaft are respectively rotatably installed in two sliding blowers. The defect removal adjustment airbag is installed in the middle of the defect removal rotating shaft. Hard circular surfaces are formed at both ends of the defect removal adjusting airbag. A sliding adjustment hole is recessed in the middle of one end of the hard circular surface. The sliding adjustment hole is slidably installed at both ends of the defect removal rotating shaft. The inner wall of the defect removal sleeve is installed on the outer wall of the defect removal adjustment airbag, and the outer walls of the two hard circular surfaces are respectively slidably arranged at the two ends of the inner wall of the defect removal sleeve. Inclined air-inducing annular surfaces are recessed on the inner sides of both ends of the defect removal sleeve. A plurality of defect removal grooves are recessed on the outer wall of the defect removal sleeve along the length direction, and a plurality of connecting grooves are recessed in the circumferential direction at the bottom of each defect removal groove. The two ends of the mechanical scraper are respectively installed on the inner side of the two rotating mounting plates adjacent to one end of the transmission pulling element.

[0011] As a further improvement of the present invention, each sliding blower includes a sliding mounting shaft and a tangential blowing head. The outer end of the sliding mounting shaft is slidably mounted in the adjusting strip slide groove, the inner end of the sliding mounting shaft is rotatably connected to one end of the adjusting defect removal roller, a restoring spring is arranged between one end of the adjusting strip slide groove adjacent to the conveying pulling element and the sliding mounting shaft, a mounting ring is convexly arranged in the middle of the outer wall of the sliding mounting shaft, a sliding mounting hole is concavely arranged in the middle of one end of the tangential blowing head, the tangential blowing head is slidably mounted on the inner end of the sliding mounting shaft through the sliding mounting hole, a compression spring is arranged between the outer end of the tangential blowing head and the mounting ring, tangential air outlets are respectively arranged at the top and bottom of the inner end of the tangential blowing head, an air inlet is convexly arranged on the outer wall of the tangential blowing head, and the air inlet is connected to an external fan through a pipeline.

[0012] As a further improvement of the present invention, the mechanical scraper includes a mechanical scraper plate and a scraper. The two ends of the mechanical scraper plate are respectively installed on the inner side of the two rotating mounting plates adjacent to one end of the transmitting and pulling element. The inner side of the mechanical scraper plate is concavely provided with an arc-shaped surface. The two ends of the arc-shaped surface are respectively concavely provided with arc-shaped limit grooves, sliding arc grooves and docking grooves from the inside to the outside. The depths of the limit grooves, sliding arc grooves and docking grooves gradually decrease, and the docking grooves are arranged opposite to the tangential blowing head. The two ends of the outer side of the mechanical scraper plate are respectively convexly provided with connecting adjustment turntables, and the two connecting adjustment turntables are respectively convexly provided with adjusting sliding shafts. The adjusting sliding shafts are slidably installed in the linkage adjusting sliding groove, and the scraper is rotatably installed in the middle of the bottom surface of the arc-shaped surface through a torsion spring.

[0013] As a further improvement of the present invention, the heat-sealing stretching element includes three stretching adjusters, three heat-sealing adjustment rollers and three heat-sealing fixed rollers. The three stretching adjusters are respectively installed on the inner side of the heating mounting frame at intervals along the height direction. Each stretching adjuster includes two stretching adjustment cylinders and two stretching adjustment triangles. The bottom ends of the two stretching adjustment cylinders are respectively rotatably installed on the inner sides of the two ends of the heating mounting frame. The bottom ends of the two stretching adjustment triangles are respectively rotatably installed on the two ends of the inner side of the heating mounting frame. The outer sides of the tops of the two stretching adjustment triangles are rotatably connected to the output shafts of the two stretching adjustment cylinders. The two ends of the three heat-sealing adjustment rollers are respectively rotatably connected to the inner sides of the tops of the six stretching adjustment triangles. The two ends of the three heat-sealing fixed rollers are respectively rotatably installed on the inner sides of the two vertical mounting plates along the length direction.

[0014] As a further improvement of the present invention, the winding assembly includes a winding roller, an unloading grabbing frame, two unloading grabbing claws and two unloading adjusting cylinders, the two ends of the winding roller are respectively installed in the output shafts of the two first driving motors away from the yarn feeding assembly, the two ends of the top of the unloading grabbing frame are respectively rotatably installed on the top of the inner side of the two mounting vertical boxes away from one end of the yarn feeding assembly, the two unloading grabbing claws are respectively installed at the two ends of the unloading grabbing frame, the top ends of the two unloading adjusting cylinders are respectively rotatably installed on the middle part of the inner side of the two mounting vertical boxes away from one end of the yarn feeding assembly, and the output ends of the two unloading adjusting cylinders are respectively rotatably installed on the two ends of the middle part of the bottom surface of the unloading grabbing frame.

[0015] The beneficial effects of the present invention are as follows:

[0016] 1. The present invention adds 10% to 20% of nylon fiber and 10% to 40% of aramid fiber to the core yarn, so that the core yarn has good elasticity and recovery, which can increase the flexibility and elasticity of the core yarn, and make the vortex spun yarn have good elasticity and comfort. At the same time, 5% of silk fiber and 20% to 30% of polyester fiber are added to the outer fiber 12 to increase the gloss and feel of the vortex spun yarn, and have good wrinkle resistance and easy care, which can reduce wrinkles and deformation of textiles and improve the easy care of textiles. The interlayer fiber is added to reinforce and support the core yarn and the outer fiber, thereby improving the strength and stability of the yarn.

[0017] 2. The present invention can perform initial twisting on vortex spun yarns through vortex spinning equipment, which helps to form the basic structure of semi-finished yarns and improve their strength and stability. Subsequently, the vortex spun yarns can be re-twisted by a twisting machine to arrange the fibers in the semi-finished yarns tightly, thereby improving their uniformity and strength. Preheating before twisting helps to improve the softness and ductility of the fibers, prevent fiber shedding or yarn breakage, and promote the discharge of knots. Subsequently, the discharged knots are impact-cut by a shear air knife, thereby improving the quality and appearance of the finished yarn and preventing the appearance of knots in the finished yarn.

[0018] 3. When the diameter of the knot in the semi-finished yarn is large or the knot is relatively stable, the present invention can adjust the position of the rotating mounting plate, and then adjust the relative position of the wind curtain air outlet and the semi-finished yarn and adjust the defect removal roller, so as to maximize the wind receiving area, increase the amount of knots blown out and the effect of the shear air knife on blowing away the knots, improve the removal efficiency, maximize the knot removal effect, and through the coordination of adjusting the defect removal roller and the mechanical scraper, the knots of multiple semi-finished yarns can be directly scraped off accurately and effectively, ensuring the removal of knots with large diameters or knots. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 4 is a cross-sectional view of a vortex spun yarn according to an embodiment of the present invention.

[0020] Figure 2 It is a three-dimensional schematic diagram of an embodiment of the present invention.

[0021] Figure 3 FIG. 4 is an internal schematic diagram of an embodiment of the present invention.

[0022] Figure 4 FIG. 4 is an internal schematic diagram of another embodiment of the present invention.

[0023] Figure 5 It is a three-dimensional schematic diagram of a twisting frame and a twisting assembly in one embodiment of the present invention.

[0024] Figure 6 It is a three-dimensional schematic diagram of a twisting frame and a twisting assembly in another embodiment of the present invention.

[0025] Figure 7 It is a three-dimensional schematic diagram of a scattered wire defect removal element and two pulling triangles in one embodiment of the present invention.

[0026] Figure 8 It is a three-dimensional schematic diagram of a scattered wire defect removal element in one embodiment of the present invention.

[0027] Fig. 9 for Figure 8 Enlarged view of point A in the middle.

[0028] In the figure:

[0029] 10. vortex spinning yarn; 11. core yarn; 12. outer fiber; 13. sandwich fiber; 20. twisting machine; 30. installation shell; 31. installation bottom plate; 32. installation vertical box; 33. twisting frame; 321. first rotating hole; 330. lifting frame; 331. heating installation frame; 332. air curtain air outlet; 333. vertical installation plate; 40. yarn feeding assembly; 41. yarn feeding grabbing frame; 42. yarn feeding grabbing claw; 43. yarn feeding regulating cylinder; 44. first conveying roller; 45. first transition installation claw; 46. first a transition adjustment cylinder; 451, a first rotating table; 50, a twisting assembly; 51, a transmission pulling element; 511, a pulling cylinder; 512, a pulling triangle table; 513, a transmission pulling roller; 514, a linkage rotating table; 515, a linkage triangle table; 516, a rotating connecting rod; 517, a linkage adjustment slide; 52, a loose wire defect removal element; 521, a rotating mounting table; 522, a rotating mounting plate; 523, a loose wire control cylinder; 524, a fixed defect removal roller; 525, an adjustment defect removal roller; 526, a mechanical scraper; 52 7. Second rotating hole; 528. Adjustment strip slide groove; 520. Sliding blower; 529. Connecting shaft; 561. Defect removal rotating shaft; 562. Defect removal adjustment airbag; 563. Defect removal sleeve; 564. Hard round surface; 565. Sliding adjustment hole; 566. Wind induction annular surface; 567. Defect removal groove; 541. Sliding mounting shaft; 542. Tangential blower head; 543. Restoring spring; 544. Mounting ring; 545. Sliding mounting hole; 546. Compression spring; 547. Tangential air outlet; 548. Air inlet Nozzle; 551, mechanical scraper plate; 552, scraper; 553, arc surface; 554, limit groove; 555, sliding arc groove; 556, docking groove; 557, connecting adjustment turntable; 558, adjusting sliding shaft; 53, heat sealing stretching element; 531, stretching regulator; 532, heat sealing adjustment roller; 530, heat sealing fixed roller; 533, stretching adjustment cylinder; 534, stretching adjustment triangle plate; 60, winding assembly; 61, winding roller; 62, unloading grabbing frame; 63, unloading grabbing claw; 64, unloading adjustment cylinder. DETAILED DESCRIPTION

[0030] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly understood.

[0031] In the description of the present invention, it should be noted that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0033] See also Figures 1 to 9 A twisting device for vortex-spun core-spun yarn comprises a vortex-spun yarn 10 and a twisting machine 20. The vortex-spun yarn 10 comprises a core yarn 11, an outer fiber 12 and an interlayer fiber 13. The core yarn 11 is composed of 50% to 60% polyester fiber, 10% to 20% nylon fiber and 10% to 40% aramid fiber, and the core yarn 11 is a straight core structure without twisting; the outer fiber 12 is composed of 40% to 60% cotton fiber, 20% to 30% polyester fiber, 5% silk fiber and 15% to 35% wool fiber. The outer fiber 12 is regularly wrapped around the outer wall of the core yarn 11. The interlayer fiber 13 is composed of polyester fiber, and the interlayer fiber 13 is arranged between the core yarn 11 and the outer fiber 12. The twisting machine 20 is used for twisting and stretching the vortex-spun yarn 10.

[0034] The twisting machine 20 includes an installation shell 30, a yarn feeding assembly 40, a twisting assembly 50 and a winding assembly 60. The installation shell 30 includes two installation base plates 31, two installation vertical boxes 32 and a twisting frame 33. The bottoms of the two installation base plates 31 are respectively installed at the two ends of the installation ground, and the two ends of the bottoms of the two installation vertical boxes 32 are respectively installed on the two sides of the two installation base plates 31, and the two installation vertical boxes 32 are arranged oppositely. Each installation vertical box 32 is hollow on both sides to form a hollow cavity, and a first driving motor is arranged in the hollow cavity. The inner side of the hollow cavity is concavely provided with a first rotating hole 321, and the first rotating hole 321 is arranged opposite to the first driving motor. The bottom of the twisting frame 33 is installed in the middle of the installation ground, and the length direction of the twisting frame 33 It is arranged perpendicular to the length direction of the mounting vertical box 32, and a lifting frame 330 is protruded from the top of the twisting frame 33 away from one end of the yarn feeding assembly 40. A heating mounting frame 331 is arranged on the top of the lifting frame 330. The heating mounting frame 331 is in a right-angled trapezoid. An air curtain air outlet 332 is protruded inward from the bottom of the outer side of the heating mounting frame 331. The air curtain air outlet 332 is arranged downwardly and is connected to an external fan. Vertical mounting plates 333 are respectively protruded from the top of both ends of the heating mounting frame 331. Both ends of the yarn feeding assembly 40 are respectively installed at one end of the two mounting vertical boxes 32, the twisting assembly 50 is installed in the twisting frame 33 and the heating mounting frame 331, and the winding assembly 60 is installed at the other end of the two mounting vertical boxes 32.

[0035] The yarn feeding assembly 40 includes a yarn feeding grabbing frame 41, two yarn feeding grabbing claws 42, two yarn feeding adjusting cylinders 43, a first conveying roller 44, two first transition mounting claws 45 and two first transition adjusting cylinders 46. The two ends of the top of the yarn feeding grabbing frame 41 are respectively rotatably mounted on one end of the top of the inner side of the two mounting vertical boxes 32, the two yarn feeding grabbing claws 42 are respectively mounted on the two ends of the yarn feeding grabbing frame 41, one end of the two yarn feeding adjusting cylinders 43 is respectively rotatably mounted on the middle of one end of the inner side of the two mounting vertical boxes 32, and the output ends of the two yarn feeding adjusting cylinders 43 are respectively rotatably mounted on the yarn feeding At both ends of the middle part of the bottom surface of the grabbing frame 41, both ends of the first conveying roller 44 are respectively installed in the output shafts of the two first driving motors at the same end, and a first rotating platform 451 is protruded in the middle of the two first transition mounting claws 45. The first rotating platform 451 is installed in the middle part of the inner side of the mounting vertical box 32, and the first rotating platform 451 is arranged adjacent to the first conveying roller 44. The bottom ends of the two first transition adjusting cylinders 46 are respectively rotatably installed at the two ends of the inner side of one of the mounting base plates 31, and the output shafts of the two first transition adjusting cylinders 46 are respectively rotatably installed at the bottom ends of the two first transition mounting claws 45.

[0036] The twisting assembly 50 includes a transmission and pulling element 51, a loose thread defect removal element 52 and a heat-sealing and stretching element 53. The transmission and pulling element 51 is installed on the outside of the heating mounting frame 331, the loose thread defect removal element 52 is installed on the top of the twisting frame 33, and the heat-sealing and stretching element 53 is installed on the inside of the heating mounting frame 331.

[0037] The transmission pulling element 51 includes two pulling cylinders 511, two pulling triangles 512, two transmission pulling rollers 513, two linkage turntables 514 and two linkage triangles 515. The top ends of the two pulling cylinders 511 are respectively rotatably mounted on the two ends of the top of the outer side of the heating mounting frame 331, and one end of the two pulling triangles 512 is respectively rotatably mounted on the two ends of the bottom of the outer side of the heating mounting frame 331. The output shafts of the two pulling cylinders 511 are respectively rotatably connected to the middle of the top surface of the two pulling triangles 512. The two transmission pulling rollers 513 are respectively The ends are respectively installed on the top and bottom of the outer sides of the two pulling triangles 512, the tops of the two linkage turntables 514 are respectively installed on the two ends of the outer side of the bottom surface of the heating mounting frame 331, the inner sides of the tops of the two linkage triangles 515 are respectively rotatably installed on the bottoms of the two linkage turntables 514, and the outer sides of the tops of the two linkage triangles 515 are convexly provided with a rotating connecting rod 516, and the tops of the two rotating connecting rods 516 are respectively rotatably installed on the middle of the bottom surfaces of the two pulling triangles 512, and the inner side of the bottom of each linkage triangle 515 is recessed with a linkage adjustment slide groove 517.

[0038] The loose wire defect removal element 52 includes two rotating mounting platforms 521, two rotating mounting plates 522, two loose wire control cylinders 523, a fixed defect removal roller 524, an adjustable defect removal roller 525 and a mechanical scraper 526. The bottom ends of the two rotating mounting platforms 521 are respectively mounted on the tops of the two ends of the twisting frame 33, and the middle parts of the two rotating mounting plates 522 are respectively rotatably mounted on the tops of the two rotating mounting platforms 521. The two ends of one side of each rotating mounting plate 522 are respectively recessed with a second rotating hole 527 and an adjustable strip sliding The adjusting strip slide 528 is provided with a sliding blower 520, the adjusting strip slide 528 is provided near one end of the transmission pulling element 51, a connecting shaft 529 is provided in the second rotating hole 527, the bottom ends of the two loose thread control cylinders 523 are respectively rotatably mounted on the bottoms of both ends of the twisting frame 33, the output shafts of the two loose thread control cylinders 523 are respectively rotatably mounted on the outer ends of the two connecting shafts 529, the two ends of the fixed defect removal roller 524 are respectively mounted on the inner ends of the connecting shafts 529, and the defect removal is adjusted. The roller 525 includes a defect removal rotating shaft 561, a defect removal adjusting airbag 562 and a defect removal sleeve 563. The two ends of the defect removal rotating shaft 561 are respectively rotatably mounted in two sliding blowers 520. The defect removal adjusting airbag 562 is installed in the middle of the defect removal rotating shaft 561. Hard round surfaces 564 are formed at the two ends of the defect removal adjusting airbag 562. A sliding adjusting hole 565 is recessed in the middle of one end of the hard round surface 564. The sliding adjusting hole 565 is slidably mounted on the two ends of the defect removal rotating shaft 561. The defect removal sleeve 563 The inner wall is installed on the outer wall of the defect removal regulating airbag 562, and the outer walls of the two hard circular surfaces 564 are respectively slidably arranged on the two ends of the inner wall of the defect removal sleeve 563. The inner sides of the two ends of the defect removal sleeve 563 are recessed with inclined air-inducing annular surfaces 566. The outer wall of the defect removal sleeve 563 is recessed with a plurality of defect removal grooves 567 along the length direction. The bottom of each defect removal groove 567 is recessed with a plurality of connecting grooves along the circumferential direction. The two ends of the mechanical scraper 526 are respectively installed on the inner side of the two rotating mounting plates 522 adjacent to one end of the conveying pulling element 51.

[0039] Each sliding blower 520 includes a sliding mounting shaft 541 and a tangential blowing head 542. The outer end of the sliding mounting shaft 541 is slidably mounted in the adjusting strip slide groove 528. The inner end of the sliding mounting shaft 541 is rotatably connected to one end of the adjusting defect removal roller 525. A restoring spring 543 is arranged between one end of the adjusting strip slide groove 528 adjacent to the transmission pulling element 51 and the sliding mounting shaft 541. A mounting ring 544 is convexly arranged in the middle of the outer wall of the sliding mounting shaft 541. A sliding mounting hole 545 is recessed in the middle of one end of the head 542, and the tangential blowing head 542 is slidably mounted on the inner end of the sliding mounting shaft 541 through the sliding mounting hole 545. A compression spring 546 is arranged between the outer end of the tangential blowing head 542 and the mounting ring 544. Tangential air outlet holes 547 are respectively arranged on the top and bottom of the inner end of the tangential blowing head 542, and an air inlet nozzle 548 is convexly arranged on the outer wall of the tangential blowing head 542, and the air inlet nozzle 548 is connected to an external fan through a pipeline.

[0040] The mechanical scraper 526 includes a mechanical scraper plate 551 and a scraper 552. The two ends of the mechanical scraper plate 551 are respectively installed on the inner side of the two rotating mounting plates 522 adjacent to one end of the conveying pulling element 51. The inner side of the mechanical scraper plate 551 is concavely provided with an arc surface 553. The two ends of the arc surface 553 are respectively concavely provided with arc-shaped limiting grooves 554, sliding arc grooves 555 and docking grooves 556 from the inside to the outside. The depths of the limiting grooves 554, sliding arc grooves 555 and docking grooves 556 gradually decrease, and the docking grooves 556 are arranged opposite to the tangential blowing head 542. The two ends of the outer side of the mechanical scraper plate 551 are respectively provided with connecting adjustment turntables 557. The two connecting adjustment turntables 557 are respectively provided with adjusting slide shafts 558. The adjusting slide shafts 558 are slidably installed in the linkage adjusting slide groove 517. The scraper 552 is rotatably installed in the middle of the bottom surface of the arc surface 553 through a torsion spring.

[0041] The heat-sealing stretching element 53 includes three stretching adjusters 531, three heat-sealing adjustment rollers 532 and three heat-sealing fixing rollers 530. The three stretching adjusters 531 are respectively installed on the inner side of the heating mounting frame 331 at intervals along the height direction. Each stretching adjuster 531 includes two stretching adjustment cylinders 533 and two stretching adjustment triangles 534. The bottom ends of the two stretching adjustment cylinders 533 are respectively rotatably installed on the inner sides of the two ends of the heating mounting frame 331. The bottom ends of the two stretching adjustment triangles 534 are respectively rotatably installed on the two ends of the inner side of the heating mounting frame 331. The outer sides of the tops of the two stretching adjustment triangles 534 are rotatably connected to the output shafts of the two stretching adjustment cylinders 533. The two ends of the three heat-sealing adjustment rollers 532 are respectively rotatably connected to the inner sides of the tops of the six stretching adjustment triangles 534. The two ends of the three heat-sealing fixing rollers 530 are respectively rotatably installed on the inner sides of the two vertical mounting plates 333 along the length direction.

[0042] The winding assembly 60 includes a winding roller 61, an unloading grabbing frame 62, two unloading grabbing claws 63 and two unloading adjusting cylinders 64. The two ends of the winding roller 61 are respectively installed in the output shafts of the two first driving motors away from the yarn feeding assembly 40. The two ends of the top of the unloading grabbing frame 62 are respectively rotatably installed on the top of the inner side of the two mounting vertical boxes 32 away from the end of the yarn feeding assembly 40. The two unloading grabbing claws 63 are respectively installed at the two ends of the unloading grabbing frame 62. The tops of the two unloading adjusting cylinders 64 are respectively rotatably installed on the middle of the inner side of the two mounting vertical boxes 32 away from the end of the yarn feeding assembly 40. The output ends of the two unloading adjusting cylinders 64 are respectively rotatably installed on the two ends of the middle of the bottom surface of the unloading grabbing frame 62.

[0043] For example, in one embodiment, a conveying roller is rotatably disposed between the tops of the two first transition mounting claws 45 .

[0044] For example, in one embodiment: during vortex spinning, pre-tension is applied to the core yarn 11, and multiple outer fibers 12 and interlayer fibers 13 are initially twisted in a vortex spinning device by regular wrapping to form semi-finished yarn.

[0045] For example, in one embodiment: a plurality of semi-finished yarns are wound in sequence through the first conveying roller 44, the conveying roller, two conveying pulling rollers 513, the adjusting and defect-removing roller 525, the fixing and defect-removing roller 524, the three heat-sealing adjusting rollers 532, the three heat-sealing fixing rollers 530 and the winding roller 61, and then the four first driving motors are started synchronously to wind the semi-finished yarns, and at the same time, the two first transition regulating cylinders 46 are started to tighten the plurality of semi-finished yarns wound therein, so that the plurality of semi-finished yarns are synchronously tightened, and then the two pulling air cylinders are started. The cylinder 511 will start, and then drive the two linked triangular tables 515 to rotate, pulling the two rotating mounting plates 522 to rotate around the two rotating mounting tables 521, thereby further tightening the semi-finished yarn and causing the untwisted multiple fibers in the semi-finished yarn to have a tendency to disperse. At this time, the angle between the center line of the rotating mounting plate 522 and the center line of the air curtain outlet 332 is an acute angle. At the same time, the external fan will start and the hot air will flow out from the air curtain outlet 332 to form a hot air curtain, which will blow towards the inclined multiple semi-finished yarns for pre-stressing. The hot air curtain is heated, and the impact of the hot air curtain causes the knots of the semi-finished yarn to be blown out, and the hot air from the external fan will be synchronously sent to the tangential blowing head 542 along the pipeline, and flow out from the two tangential air outlets 547 of the tangential blowing head 542 to form a shearing wind knife to impact and cut off the discharged knots. Subsequently, the semi-finished yarn continues to be driven, and the semi-finished yarn with the knots cut off is sent to the heat-sealing stretching element 53. The semi-finished yarn will be arranged in three heat-sealing adjusting rollers 532 and three heat-sealing fixing rollers 530 at intervals along the height direction. The heat-sealing fixing rollers 530 Connecting to an external heating device will allow the heat-sealing fixing roller 530 to be evenly heated, thereby ensuring the softness and ductility of the semi-finished yarn and allowing the multiple untwisted fibers mentioned above to be re-bonded to each other. At the same time, multiple stretching adjustment cylinders 533 will be started, thereby pushing multiple stretching adjustment triangles 534 to rotate, allowing the heat-sealing adjusting roller 532 to approach the adjacent heat-sealing fixing roller 530, thereby twisting and tightening the multiple semi-finished yarns therein to form finished yarns, and the finished yarns are sent to the winding roller 61 for winding.

[0046] For example, in one embodiment: when the diameter of the knot in the semi-finished yarn is large or the knot is relatively stable, the two loose yarn control cylinders 523 will be started, and the output shaft of the pulling cylinder 511 will follow the driven extension / retraction, driving the rotating mounting plate 522 to rotate accurately to adjust the position, so that the angle between the center line of the rotating mounting plate 522 and the center line of the wind curtain blower 332 is 90 degrees, and at this time, the air outlet of the wind curtain blower 332 is located above the side of the adjusting defect removal roller 525 away from the yarn feeding assembly 40, so that the wind-receiving area of ​​the multiple semi-finished yarns located in the rotating mounting plate 522 is the largest, so that the amount of knots of the multiple semi-finished yarns that are blown out by the wind is increased, and at the same time, the windward area of ​​the adjusting defect removal roller 525 is the largest, so that the adjusting defect removal roller 525 moves to the end away from the fixed defect removal roller 524 under the impact of the hot air curtain, and because the docking groove 556 is arranged relative to the tangential blowing head 542, the limit groove 5 54. The depth of the sliding arc groove 555 and the docking groove 556 gradually decreases, so that when the adjusting defect removal roller 525 moves, the tangential blowing head 542 will move inward along the sliding mounting shaft 541, and then get closer to the semi-finished yarn to blow away the knots of the semi-finished yarn. At the same time, since the inner sides of both ends of the defect removal sleeve 563 are concave with inclined air-inducing annular surfaces 566, part of the shearing air knife blown out by the tangential blowing head 542 will flow to the hard circular surface 564 under the guidance of the air-inducing annular surface 566, so that the hard circular surface 564 moves inward, so that the defect removal adjusting airbag 562 expands, so that part of the defect removal adjusting airbag 562 will be squeezed out from the multiple connecting grooves, and then the semi-finished yarn originally arranged on the defect removal groove 567 will move outward, so that the scraper 552 will directly scrape off the knots of multiple semi-finished yarns located on the multiple defect removal grooves 567, to ensure the removal of knots with larger diameters or defects.

[0047] Installation process: install the bottoms of the two installation base plates 31 at the two ends of the installation ground respectively, install the bottom ends of the two installation vertical boxes 32 at the two sides of the two installation base plates 31 respectively, and the two installation vertical boxes 32 are arranged opposite to each other, install the bottom of the twisting frame 33 in the middle of the installation ground, and the length direction of the twisting frame 33 is perpendicular to the length direction of the installation vertical box 32, rotate and install the two ends of the top of the yarn grabbing frame 41 at the top end of the inner side of the two installation vertical boxes 32 respectively, install the two yarn grabbing claws 42 at the two ends of the yarn grabbing frame 41 respectively, and rotate and install the one end of the two yarn adjusting cylinders 43 at the middle of the inner end of the two installation vertical boxes 32 respectively. The output ends of the two yarn adjusting cylinders 43 are rotated and installed at the two ends of the middle of the bottom surface of the yarn grabbing frame 41 respectively. The two ends of the roller 44 are respectively installed in the output shafts of the two first driving motors at the same end, the first rotating platform 451 is installed in the middle of the inner side of the mounting vertical box 32, and the first rotating platform 451 is arranged adjacent to the first conveying roller 44, the bottom ends of the two first transition adjusting cylinders 46 are respectively rotatably installed on the two ends of the inner side of one of the mounting base plates 31, the output shafts of the two first transition adjusting cylinders 46 are respectively rotatably installed on the bottom ends of the two first transition mounting claws 45, the top ends of the two pulling cylinders 511 are respectively rotatably installed on the two ends of the outer top of the heating mounting frame 331, one end of the two pulling triangles 512 are respectively rotatably installed on the two ends of the outer bottom of the heating mounting frame 331, the output shafts of the two pulling cylinders 511 are respectively rotatably connected with the middle of the top surface of the two pulling triangles 512, and the two The two ends of the transmission pulling roller 513 are respectively installed on the outer top and bottom of the two pulling triangles 512, the tops of the two linkage turntables 514 are respectively installed on the outer ends of the bottom surface of the heating mounting frame 331, the inner sides of the tops of the two linkage turntables 515 are respectively rotatably installed on the bottom of the two linkage turntables 514, the tops of the two rotating connecting rods 516 are respectively rotatably installed on the middle of the bottom surface of the two pulling triangles 512, the bottoms of the two rotating mounting platforms 521 are respectively installed on the tops of the two ends of the twisting frame 33, the middle parts of the two rotating mounting plates 522 are respectively rotatably installed on the tops of the two rotating mounting platforms 521, the bottoms of the two loose yarn control cylinders 523 are respectively rotatably installed on the bottoms of the two ends of the twisting frame 33, and the output shafts of the two loose yarn control cylinders 523 are respectively rotatably installed on the two connecting turntables. The outer end of the shaft 529, the two ends of the fixed defect removal roller 524 are respectively installed on the inner end of the connecting shaft 529, the two ends of the defect removal rotating shaft 561 are respectively rotatably installed in the two sliding blowers 520, the defect removal adjustment airbag 562 is installed in the middle of the defect removal rotating shaft 561, the sliding adjustment hole 565 is slidably installed at the two ends of the defect removal rotating shaft 561, the inner wall of the defect removal sleeve 563 is installed on the outer wall of the defect removal adjustment airbag 562, and the outer walls of the two hard round surfaces 564 are respectively slidably set at the two ends of the inner wall of the defect removal sleeve 563, the outer end of the sliding installation shaft 541 is slidably installed in the adjustment strip slide groove 528, the inner end of the sliding installation shaft 541 is rotatably connected with one end of the adjustment defect removal roller 525, and the tangential blowing head 542 is slidably installed on the inner end of the sliding installation shaft 541 through the sliding installation hole 545.The two ends of the mechanical scraper plate 551 are respectively installed on the inner side of the two rotating mounting plates 522 adjacent to one end of the transmission pulling element 51. The scraper 552 is rotatably installed on the middle part of the bottom surface of the arc surface 553 through a torsion spring. The bottom ends of the two stretching adjustment cylinders 533 are respectively rotatably installed on the inner sides of the two ends of the heating mounting frame 331. The bottoms of the two stretching adjustment triangles 534 are respectively rotatably installed on the inner sides of the two ends of the heating mounting frame 331. The outer sides of the tops of the two stretching adjustment triangles 534 are rotatably connected to the output shafts of the two stretching adjustment cylinders 533. The two ends of the three heat-sealing adjustment rollers 532 are respectively rotatably connected to the inner sides of the tops of the six stretching adjustment triangles 534. The two ends of the fixed roller 530 are respectively rotatably mounted on the inner side of the two vertical mounting plates 333 along the length direction, the two ends of the winding roller 61 are respectively mounted on the output shafts of the two first driving motors away from the yarn feeding assembly 40, the two ends of the top of the unloading grabbing frame 62 are respectively rotatably mounted on the inner top of the two mounting vertical boxes 32 away from the yarn feeding assembly 40, the two unloading grabbing claws 63 are respectively mounted on the two ends of the unloading grabbing frame 62, the tops of the two unloading regulating cylinders 64 are respectively rotatably mounted on the middle of the inner side of the two mounting vertical boxes 32 away from the yarn feeding assembly 40, and the output ends of the two unloading regulating cylinders 64 are respectively rotatably mounted on the two ends of the middle of the bottom surface of the unloading grabbing frame 62.

[0048] The present invention can achieve:

[0049] 1. The present invention adds 10% to 20% of nylon fiber and 10% to 40% of aramid fiber to the core yarn 11, so that the core yarn 11 has good elasticity and recovery, which can increase the flexibility and elasticity of the core yarn 11, and make the vortex spun yarn 10 have better elasticity and comfort. At the same time, 5% of silk fiber and 20% to 30% of polyester fiber are added to the outer fiber 12 to increase the gloss and feel of the vortex spun yarn 10, and have good wrinkle resistance and easy care, which can reduce wrinkles and deformation of textiles and improve the easy care of textiles. The interlayer fiber 13 is added to reinforce and support between the core yarn 11 and the outer fiber 12, thereby improving the strength and stability of the yarn.

[0050] 2. The present invention can perform initial twisting on the vortex spun yarn 10 through the vortex spinning equipment, which helps to form the basic structure of the semi-finished yarn and improve its strength and stability. The vortex spun yarn 10 is then re-twisted by the twisting machine 20, so that the fibers in the semi-finished yarn are tightly arranged, improving its uniformity and strength. Preheating before twisting helps to improve the softness and ductility of the fibers, prevent fiber shedding or yarn breakage, and promote the discharge of knots. The discharged knots are then impact-cut by a shear air knife, thereby improving the quality and appearance of the finished yarn and preventing the appearance of knots in the finished yarn.

[0051] 3. When the diameter of the knot in the semi-finished yarn is large or the knot is relatively stable, the present invention can adjust the position of the rotating mounting plate 522, and then adjust the relative position of the wind curtain air outlet 332 and the semi-finished yarn and adjust the defect removal roller 525, so as to maximize the wind receiving area, increase the amount of knots blown out and the effect of the shear air knife on blowing away the knots, improve the removal efficiency, maximize the knot removal effect, and by adjusting the defect removal roller 525 and the mechanical scraper 526 to cooperate, the knots of multiple semi-finished yarns can be directly scraped off accurately and effectively, ensuring the removal of knots with large diameters or knots.

[0052] The above-mentioned embodiments only express several embodiments of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A twisting device for vortex spinning core-spun yarn, characterized in that: The invention comprises a vortex spun yarn (10) and a twisting machine (20). The vortex spun yarn (10) comprises a core yarn (11), an outer layer fiber (12) and an interlayer fiber (13). The core yarn (11) is composed of 50% to 60% polyester fiber, 10% to 20% nylon fiber and 10% to 40% aramid fiber, and the core yarn (11) is a straight core structure without twisting; the outer layer fiber (12) is composed of 40% to 60% cotton fiber. , 20% to 30% polyester fiber, 5% silk fiber and 15% to 35% wool fiber, the outer fiber (12) is wrapped around the outer wall of the core yarn (11) in a regular wrapping manner, the interlayer fiber (13) is composed of polyester fiber, and the interlayer fiber (13) is arranged between the core yarn (11) and the outer fiber (12), and the twisting machine (20) is used to twist and stretch the vortex spun yarn (10); The twisting machine (20) comprises an installation shell (30), a yarn feeding assembly (40), a twisting assembly (50) and a winding assembly (60). The installation shell (30) comprises two installation base plates (31), two installation vertical boxes (32) and a twisting frame (33). The bottoms of the two installation base plates (31) are respectively installed at two ends of the installation ground. The bottoms of the two installation vertical boxes (32) are respectively installed at two sides of the two installation base plates (31). The two installation vertical boxes (32) are arranged opposite to each other. The two sides of each installation vertical box (32) are hollowed to form a hollow cavity. A first driving motor is arranged in the hollow cavity. A first rotating hole (321) is concavely arranged on the inner side of the hollow cavity. The first rotating hole (321) is arranged opposite to the first driving motor. The bottom of the twisting frame (33) is installed in the middle of the installation ground. The length direction of the twisting frame (33) is parallel to the installation ground. The vertical mounting box (32) is arranged vertically in the length direction, a lifting frame (330) is protruding from the top of the twisting frame (33) away from one end of the yarn feeding assembly (40), a heating mounting frame (331) is arranged on the top of the lifting frame (330), the heating mounting frame (331) is in a right-angle trapezoidal shape, an air curtain air outlet (332) is protruding inwardly from the bottom of the outer side of the heating mounting frame (331), the air curtain air outlet (332) is arranged tilted downward, and the air curtain air outlet (332) is connected to an external fan, vertical mounting plates (333) are protruding from the top of both ends of the heating mounting frame (331), the two ends of the yarn feeding assembly (40) are respectively installed at one end of the two vertical mounting boxes (32), the twisting assembly (50) is installed in the twisting frame (33) and the heating mounting frame (331), and the winding assembly (60) is installed at the other end of the two vertical mounting boxes (32); The twisting assembly (50) comprises a transmission and pulling element (51), a loose thread defect removal element (52) and a heat-sealing and stretching element (53); the transmission and pulling element (51) is installed on the outside of the heating mounting frame (331), the loose thread defect removal element (52) is installed on the top of the twisting frame (33), and the heat-sealing and stretching element (53) is installed on the inside of the heating mounting frame (331); The loose wire defect removal element (52) comprises two rotating mounting platforms (521), two rotating mounting plates (522), two loose wire control cylinders (523), a fixed defect removal roller (524), an adjustable defect removal roller (525) and a mechanical scraper (526), ​​wherein the bottom ends of the two rotating mounting platforms (521) are respectively mounted on the top ends of the twisting frame (33), the middle parts of the two rotating mounting plates (522) are respectively rotatably mounted on the top ends of the two rotating mounting platforms (521), and each rotating mounting plate (522) is respectively provided with a second rotating hole (527) and an adjusting strip at both ends of one side thereof. shaped slide groove (528), a sliding blower (520) is arranged in the adjusting strip slide groove (528), the adjusting strip slide groove (528) is arranged adjacent to one end of the transmission and pulling element (51), a connecting shaft (529) is arranged in the second rotating hole (527), the bottom ends of the two loose yarn control cylinders (523) are respectively rotatably mounted on the bottoms of both ends of the twisting frame (33), the output shafts of the two loose yarn control cylinders (523) are respectively rotatably mounted on the outer ends of the two connecting shafts (529), and the two ends of the fixed defect removal roller (524) are respectively mounted on the inner ends of the connecting shaft (529); The mechanical scraper (526) includes a mechanical scraper plate (551) and a scraper (552).

2. The twisting device for vortex spinning core-spun yarn according to claim 1, characterized in that: The yarn feeding assembly (40) comprises a yarn feeding grabbing frame (41), two yarn feeding grabbing claws (42), two yarn feeding regulating cylinders (43), a first conveying roller (44), two first transition mounting claws (45) and two first transition regulating cylinders (46). The two ends of the top of the yarn feeding grabbing frame (41) are respectively rotatably mounted on one end of the top of the inner side of two mounting vertical boxes (32). The two yarn feeding grabbing claws (42) are respectively mounted on the two ends of the yarn feeding grabbing frame (41). One end of the two yarn feeding regulating cylinders (43) is respectively rotatably mounted on the middle of one end of the inner side of the two mounting vertical boxes (32). The output ends of the two yarn feeding regulating cylinders (43) are respectively rotatably mounted on At two ends of the middle of the bottom surface of the yarn feeding grabbing frame (41), two ends of the first conveying roller (44) are respectively installed in the output shafts of two first driving motors at the same end, a first rotating platform (451) is protruded in the middle of the two first transition mounting claws (45), the first rotating platform (451) is installed in the middle of the inner side of the mounting vertical box (32), and the first rotating platform (451) is arranged adjacent to the first conveying roller (44), the bottom ends of the two first transition adjusting cylinders (46) are respectively rotatably installed at the two ends of the inner side of one of the mounting bottom plates (31), and the output shafts of the two first transition adjusting cylinders (46) are respectively rotatably installed at the bottom ends of the two first transition mounting claws (45).

3. The twisting device for vortex spinning core-spun yarn according to claim 1, characterized in that: The transmission pulling element (51) comprises two pulling cylinders (511), two pulling triangular tables (512), two transmission pulling rollers (513), two linkage turntables (514) and two linkage triangular tables (515). The top ends of the two pulling cylinders (511) are respectively rotatably mounted on the top ends of the outer side of the heating mounting frame (331). One ends of the two pulling triangular tables (512) are respectively rotatably mounted on the bottom ends of the outer side of the heating mounting frame (331). The output shafts of the two pulling cylinders (511) are respectively rotatably connected to the middle of the top surfaces of the two pulling triangular tables (512). The two transmission pulling rollers (513) are respectively ) are respectively mounted on the top and bottom of the outer sides of the two pulling triangular platforms (512), the tops of the two linkage turntables (514) are respectively mounted on the outer ends of the bottom surface of the heating mounting frame (331), the inner sides of the tops of the two linkage triangular platforms (515) are respectively rotatably mounted on the bottoms of the two linkage turntables (514), the outer sides of the tops of the two linkage triangular platforms (515) are convexly provided with a rotating connecting rod (516), the tops of the two rotating connecting rods (516) are respectively rotatably mounted on the middle of the bottom surfaces of the two pulling triangular platforms (512), and the inner side of the bottom of each linkage triangular platform (515) is concavely provided with a linkage adjustment slide groove (517).

4. The twisting device for vortex spinning core-spun yarn according to claim 3, characterized in that: Each sliding blower (520) includes a sliding mounting shaft (541) and a tangential blowing head (542). The outer end of the sliding mounting shaft (541) is slidably mounted in the adjusting strip-shaped slide groove (528). The inner end of the sliding mounting shaft (541) is rotatably connected to one end of the adjusting defect removal roller (525). A restoring spring (543) is arranged between one end of the adjusting strip-shaped slide groove (528) adjacent to the transmission pulling element (51) and the sliding mounting shaft (541). A mounting ring (544) is convexly arranged in the middle of the outer wall of the sliding mounting shaft (541). A sliding mounting hole (545) is recessed in the middle of one end of the head (542); the tangential blowing head (542) is slidably mounted on the inner end of the sliding mounting shaft (541) through the sliding mounting hole (545); a compression spring (546) is arranged between the outer end of the tangential blowing head (542) and the mounting ring (544); tangential air outlet holes (547) are respectively arranged at the top and bottom of the inner end of the tangential blowing head (542); an air inlet nozzle (548) is convexly arranged on the outer wall of the tangential blowing head (542); and the air inlet nozzle (548) is connected to an external fan through a pipeline.

5. The twisting device for vortex spinning core-spun yarn according to claim 4, characterized in that: The two ends of the mechanical scraper plate (551) are respectively mounted on the inner side of the two rotating mounting plates (522) adjacent to one end of the transmission pulling element (51). The inner side of the mechanical scraper plate (551) is concavely provided with an arc surface (553). The two ends of the arc surface (553) are respectively concavely provided with arc-shaped limit grooves (554), sliding arc grooves (555) and docking grooves (556) from the inside to the outside. The depths of the limit grooves (554), sliding arc grooves (555) and docking grooves (556) gradually decrease, and the docking grooves (556) are arranged opposite to the tangential blowing head (542). The two ends of the outer side of the mechanical scraper plate (551) are respectively convexly provided with connecting adjustment turntables (557). The two connecting adjustment turntables (557) are respectively convexly provided with adjustment sliding shafts (558). The adjustment sliding shafts (558) are slidably mounted in the linkage adjustment sliding grooves (517). The scraper (552) is rotatably mounted on the middle part of the bottom surface of the arc surface (553) through a torsion spring.

6. The twisting device for vortex spinning core-spun yarn according to claim 1, characterized in that: The heat-sealing stretching element (53) comprises three stretching regulators (531), three heat-sealing adjustment rollers (532) and three heat-sealing fixing rollers (530). The three stretching regulators (531) are respectively installed at intervals along the height direction on the inner side of the heating mounting frame (331). Each stretching regulator (531) comprises two stretching adjustment cylinders (533) and two stretching adjustment triangle plates (534). The bottom ends of the two stretching adjustment cylinders (533) are respectively rotatably installed on the inner sides of both ends of the heating mounting frame (331). The bottom ends of the two stretching adjustment triangle plates (534) are respectively rotatably installed on the inner sides of both ends of the inner side of the heating mounting frame (331). The outer sides of the tops of the two stretching adjustment triangle plates (534) are rotatably connected to the output shafts of the two stretching adjustment cylinders (533). The two ends of the three heat-sealing adjustment rollers (532) are respectively rotatably connected to the inner sides of the tops of the six stretching adjustment triangle plates (534). The two ends of the three heat-sealing fixing rollers (530) are respectively rotatably installed on the inner sides of the two vertical mounting plates (333) along the length direction.

7. The twisting device for vortex spinning core-spun yarn according to claim 1, characterized in that: The winding assembly (60) comprises a winding roller (61), an unloading grabbing frame (62), two unloading grabbing claws (63) and two unloading regulating cylinders (64); two ends of the winding roller (61) are respectively mounted on the output shafts of two first driving motors away from the yarn feeding assembly (40); two ends of the top of the unloading grabbing frame (62) are respectively rotatably mounted on the inner top of two mounting vertical boxes (32) away from one end of the yarn feeding assembly (40); the two unloading grabbing claws (63) are respectively mounted on the two ends of the unloading grabbing frame (62); the tops of the two unloading regulating cylinders (64) are respectively rotatably mounted on the middle of the inner side of the two mounting vertical boxes (32) away from one end of the yarn feeding assembly (40); and the output ends of the two unloading regulating cylinders (64) are respectively rotatably mounted on the two ends of the middle of the bottom surface of the unloading grabbing frame (62).

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