A composite yarn doubling machine

Abstract

This invention provides a composite yarn twisting machine, relating to the field of textile equipment technology. It includes a frame and several twisting units arranged in an array along the length of the frame. One end of the frame is equipped with a controller for communicating and controlling the twisting units. Each twisting unit includes, from bottom to top, a single yarn feeding mechanism, a yarn twister, a twister, and a winding mechanism. A feeding mechanism cooperating with the winding mechanism is located on one side of the frame, and a receiving mechanism cooperating with the winding mechanism is located below it. The winding mechanism includes a take-up frame mounted on the frame, with a square tube arranged along the length of the frame. Both ends of the square tube have axially positioned and rotatably mounted rotating shafts on the take-up frame, connected to a rotating motor. Four rotating shafts perpendicular to the square tube are rotatably mounted on its four sides, arranged in a circumferential array around the square tube. A winding bobbin is mounted on each of the rotating shafts, and a limiting component for limiting the movement of the winding bobbin is located at the end of the rotating shaft away from the square tube.

Description

Technical Field

[0001] This invention relates to the field of textile equipment technology, and in particular to a composite yarn twisting machine. Background Technology

[0002] A doubling machine, also known as a twisting machine, is used to twist two or more monofilaments together. Through twisting, a shaped yarn with a certain elasticity and tensile strength is obtained, reducing yarn ends, improving yarn performance, and meeting usage requirements. Therefore, a doubling machine is one of the essential pieces of equipment in the yarn textile production process.

[0003] The main working process of existing twisting machines is as follows: multiple single yarns are released from multiple single yarn bobbins, and then the multiple single yarns are twisted together at the yarn combiner. After twisting, the yarn is sent to the twisting mechanism for further twisting, and finally, the twisted yarn is wound up by the winding mechanism. However, twisting machines have certain problems in actual use. For example, after the winding mechanism finishes winding the yarn, the operator needs to manually remove the fully wound bobbin, replace it with an empty bobbin and a new single yarn roll. This continuous process of removing the yarn roll, installing the empty bobbin, installing the new single yarn roll, and reconnecting the yarn requires pausing the machine and is entirely manual. This places certain demands on the operator's speed, affecting work efficiency and increasing labor intensity. Summary of the Invention

[0004] The purpose of this invention is to provide a composite yarn twisting machine that can quickly replace the yarn spool. Only the connection requires a short stop for manual operation, while the installation of empty yarn spools, the installation of single yarn rolls, and the unloading of yarn rolls can be carried out during the twisting process, ensuring the continuity of the twisting operation, improving work efficiency, and reducing the intensity of manual labor.

[0005] The above-mentioned technical objective of the present invention is achieved through the following technical solution:

[0006] A composite yarn twisting machine includes a frame and a plurality of twisting units arranged in an array along the length of the frame. One end of the frame is provided with a controller for communicating and controlling the operation of the plurality of twisting units. Each twisting unit includes a single yarn feeding mechanism, a yarn twister, a twister, and a winding mechanism arranged sequentially from bottom to top. A feeding mechanism is provided on one side of the frame along its length and cooperates with the winding mechanisms. A receiving mechanism is provided below the winding mechanisms and cooperates with them.

[0007] The winding mechanism includes a take-up rack mounted on a frame, a square tube arranged along the length of the frame, and a flipping shaft at both ends of the square tube, which is axially positioned and rotatably mounted on the take-up rack. The flipping shaft is connected to a flipping motor that drives its rotation and is fixed on the take-up rack. A winding shaft perpendicular to the square tube is rotatably mounted on each of the four sides of the square tube, and the four winding shafts are arranged in a circumferential array around the square tube. A yarn bobbin is mounted on the winding shaft and drives the yarn bobbin to rotate and wind up the yarn. A limiting component is provided at the end of the winding shaft away from the square tube for limiting the movement of the yarn bobbin.

[0008] The square tube has four drive shafts arranged in a circular array inside, each corresponding to a take-up shaft. Support plates are provided at both ends of the square tube, and the four drive shafts are rotatably mounted on the support plates. The end of the take-up shaft near the square tube extends into the square tube and is provided with a first bevel gear coaxial with it. Each drive shaft is provided with a second bevel gear coaxial with it and meshing with the corresponding first bevel gear. Each drive shaft is connected to a micro motor that drives its rotation.

[0009] By adopting the above technical solution, the single yarn feeding mechanism is used to loosen the single yarns that need to be twisted. Multiple single yarns are sent to the yarn combining machine for yarn combining, and then to the twisting machine for twisting to form a composite yarn. Finally, the yarn is sent to the winding mechanism for winding. The yarn is wound around a vertically upward-positioned spool. A micro motor that works with the winding shaft on the upper end of the square tube operates. The micro motor drives the corresponding drive shaft to rotate. Under the meshing action of the second bevel gear and the first bevel gear, the winding shaft on the upper end of the square tube is driven to rotate, thereby achieving the winding of the yarn. Among them, the limiting component limits the spool to prevent the spool from jumping during the winding process and ensures the stability of the yarn winding.

[0010] During the twisting machine's operation, the feeding mechanism installs empty yarn spools onto the square tube and its adjacent take-up shaft. Once the yarn is wound up, the flipping motor drives the flipping shaft to rotate, causing the entire square tube to rotate 90°. During this rotation, the take-up shaft near the feeding mechanism rotates the empty yarn spool upwards, allowing the corresponding micro-motor to continue winding the yarn quickly. The completed yarn spool then rotates to the other side. The feeding mechanism continues to add empty yarn spools to the side wall of the square tube, repeating this process. When the completed yarn spool rotates vertically downwards, the limiting component releases its restraining effect, and the completed yarn spool falls to the receiving mechanism for receiving, thus completing the yarn spool unloading process.

[0011] In the above process, the rotation of the square tube in the winding mechanism, in conjunction with the feeding mechanism and the receiving mechanism, enables the rapid replacement of the yarn spool. Only the connection requires a short stop for manual operation, while the installation of the empty yarn spool and the unloading of the yarn roll can be carried out during the twisting process, ensuring the continuity of the twisting work, improving work efficiency, and reducing the intensity of manual labor.

[0012] Furthermore, the end of the winding shaft away from the square tube is provided with a limiting groove arranged radially thereon. The limiting assembly includes two limiting blocks that are slidably installed in the limiting groove, either far apart or close to each other. The two limiting blocks are provided with lugs on both sides of their close-to-each end, forming a T-shaped structure. A tension spring is fixed between the two lugs on the same side of the two limiting blocks, arranged along the length of the limiting groove. Under normal conditions, under the tension of the tension spring, the ends of the two limiting blocks that are far apart from each other extend out of the limiting groove and abut against the end of the winding drum.

[0013] By adopting the above technical solution, under the tension of the tension spring, the two limiting blocks slide away from each other along the limiting groove, and one end of the limiting block extends out of the limiting groove and abuts against the end of the winding drum. This utilizes the pressing and limiting effect of the limiting blocks on the end of the winding drum to achieve the limiting and fixing of the winding drum, preventing the winding drum from jumping or detaching from the winding shaft. Specifically, two limiting blocks are provided, with lugs at the ends of the limiting blocks and a tension spring placed between the lugs. This ensures the effectiveness and service life of the tension spring, guaranteeing the limiting effect of the limiting blocks on the winding drum, and also facilitates the subsequent installation of an unlocking structure that overcomes the tension spring, causing the limiting blocks to move closer together and release their limiting effect.

[0014] Furthermore, the end of the winding shaft away from the square tube is provided with an unlocking groove coaxially arranged therewith, and the end of the unlocking groove near the limiting groove is connected to the limiting groove; the ends of the two limiting blocks that are close to each other are connected to unlocking ropes, and when the tension spring is in normal state, the unlocking ropes are in a taut state; an unlocking rod is vertically slidably installed in the unlocking groove, and the end of the unlocking rod near the limiting groove is provided with an unlocking ring whose axis is arranged along the length direction of the limiting groove, and the unlocking rope passes through the unlocking ring; a reversing shaft is provided in the limiting groove along its width direction and located on both sides of the unlocking groove, and the outer wall of the reversing shaft is provided with a rope-locking groove, and the unlocking rope is locked in the rope-locking groove from above the reversing shaft.

[0015] By adopting the above technical solution, when it is necessary to release the limiting effect of the two limiting blocks on the winding drum, the driving unlocking rod slides along the unlocking groove away from the limiting groove. The unlocking rod uses the unlocking ring to pull the unlocking rope, pulling the two limiting blocks closer together, thereby releasing the limiting effect of the limiting blocks on the winding drum. Specifically, a reversing shaft is provided within the limiting groove, and a rope-locking groove is provided on the reversing shaft. The reversing shaft converts the pulling force of the unlocking rod on the unlocking rope along its sliding direction into a pulling force on the limiting blocks along the length of the limiting groove, ensuring smooth pulling of the limiting blocks. The rope-locking groove limits the unlocking rope, preventing slippage on the reversing shaft and ensuring the effectiveness of the unlocking operation on the limiting blocks.

[0016] Furthermore, the feeding mechanism includes a feeding rack disposed on one side of the frame and arranged along the length of the frame. The feeding rack is provided with a plurality of feeding components that correspond one-to-one with the corresponding winding mechanism, arranged in an array along its length. The feeding component includes a horizontal plate arranged along the width of the feeding rack. The end of the horizontal plate away from the winding mechanism is provided with a side plate perpendicular to it. The side plate near the winding mechanism is provided with a hanging shaft arranged along the length of the horizontal plate and located on the extension line of the corresponding winding shaft on the square tube. A plurality of winding drums coaxial with it are threaded through the hanging shaft, and the hanging shaft is provided with a material feeding component that slides along its length.

[0017] By adopting the above technical solution, during the operation of the twisting machine, the operator hangs several spools on the hanging shaft, and the material-pushing component is located between the side plate and the spool closest to the side plate. When it is necessary to add an empty spool to the take-up shaft of the square tube, the material-pushing component slides along the hanging shaft, driving several spools on the hanging shaft to move synchronously, and pushing the first spool near the square tube end of the hanging shaft onto the take-up shaft, completing the loading of the empty spool. Its structure is simple, easy to operate, and has obvious effects.

[0018] Furthermore, the hanging shaft is provided with a material-feeding hole coaxial with it, and the outer wall of the hanging shaft is provided with a material-feeding groove arranged along its length and communicating with the material-feeding hole; the material-feeding component includes a material-feeding screw arranged in the material-feeding hole along its length, the end of the material-feeding screw near the side plate is rotatably mounted on the side plate and connected to a material-feeding motor that drives its rotation; the hanging shaft is fitted with a dial plate coaxial with it, and the dial plate is connected to a dial block that is slidably mounted in the material-feeding groove and threadedly connected to the material-feeding screw.

[0019] By adopting the above technical solution, when a new spool needs to be added to the take-up shaft, the feeding motor operates, driving the feeding screw to rotate. Under the threaded connection between the feeding screw and the feeding block, and the guiding action of the feeding groove on the feeding block, the driving disc moves along the length of the hanging shaft, thereby moving the first spool near the square tube end of the hanging shaft onto the take-up shaft. The feeding block is equipped with a disc coaxial with the hanging shaft. The disc drives the spool to move, increasing the contact area with the spool and ensuring the stability of the spool during the feeding process. The structure is simple, easy to operate, and has a significant effect.

[0020] Furthermore, the end of the hanging shaft near the winding mechanism is provided with a clearance hole, and a piercing rod that slides along its axial direction and cooperates with the unlocking rod is provided in the clearance hole; a telescopic ring coaxially mounted on the end of the feeding screw near the clearance hole is positioned and rotatably installed therewith, the end of the telescopic ring away from the feeding screw is an annular slope, the end of the piercing rod near the telescopic ring cooperates with the annular slope, and a return spring arranged along its length is fixed between the end of the piercing rod that cooperates with the annular slope and the inner end wall of the hanging shaft.

[0021] By adopting the above technical solution, during the rotation of the feeding screw, the telescopic ring rotates synchronously with it. During the rotation of the telescopic ring, its annular slope continuously pushes out the insertion rod. Combined with the ejection action of the return spring and the limiting and guiding action of the clearance hole, the insertion rod reciprocates along its length. As the insertion rod moves from the lowest point to the highest point of the annular slope, the end of the insertion rod away from the telescopic ring drives the unlocking rod to slide along the unlocking groove, causing the limiting blocks to slide closer together, facilitating the insertion of the winding drum onto the take-up shaft. With one end of the winding drum partially inserted into the take-up shaft, the limiting block is restricted by the inner wall of the winding drum. Therefore, even if the insertion rod repeatedly moves back and forth during the continued rotation of the feeding screw, the limiting block will not affect the continued feeding of the winding drum. This structure is simple; during the feeding process of the feeding screw, the insertion rod moves synchronously to release the limiting block's restriction, achieving linkage between feeding and unlocking. This effectively simplifies the structure and ensures that the winding drum can be smoothly moved onto the take-up shaft.

[0022] Furthermore, the receiving mechanism includes a receiving frame arranged along the length of the frame, and a plurality of receiving components arranged in an array along its width. The receiving components include a receiving seat arranged along the length of the receiving frame, and a plurality of vertically arranged receiving rods arranged in an array along its length, each corresponding to a plurality of winding mechanisms. The receiving rods are coaxially arranged with the winding shaft at the bottom of the corresponding square tube. The receiving rods are vertically slidably mounted on the receiving seat, and the upper end of the receiving rods is provided with a top rod that cooperates with the unlocking rod.

[0023] By adopting the above technical solution, under normal conditions, there is a certain distance between the top of the receiving rod and the square tube, avoiding interference between the winding shaft and the receiving rod during the rotation of the square tube. When the winding shaft rotates to a vertically downward position, it drives the receiving rod to move vertically upward, causing the top rod to drive the unlocking rod to move vertically upward, thereby pulling the unlocking rope to bring the two limit blocks closer together, releasing the limiting effect of the limit blocks on the winding drum. The winding drum, having completed its winding, falls naturally under gravity and is secured to the receiving rod. The above receiving assembly has a simple structure. By vertically sliding the receiving rod on the receiving seat, it not only allows the top rod to drive the unlocking rod to move, thus releasing the limiting effect of the limit blocks, but also brings the receiving rod closer to the winding shaft, ensuring that the winding drum can fall smoothly and accurately onto the receiving rod, guaranteeing the receiving effect.

[0024] Furthermore, the receiving seat is provided with a vertically arranged guide groove, and the bottom of the receiving rod is provided with a guide seat that is vertically slidably installed in the guide groove. A vertically arranged lifting screw is positioned and rotated in the guide groove. The lifting screw is threadedly connected to the guide seat and its top is provided with an anti-detachment plate that cooperates with the guide seat. Several lifting screws are provided with lifting gears coaxial with them at their bottoms. Several lifting gears located on the same receiving seat are connected by a lifting chain drive, and the lifting gears at both ends are connected to a lifting motor that drives them to rotate.

[0025] By adopting the above technical solution, when the receiving rod needs to slide vertically, the lifting motor operates. Under the meshing transmission of the lifting gear and the lifting chain, several lifting screws rotate synchronously. Through the threaded connection between the lifting screws and the guide seat, and the limiting effect of the guide groove on the guide seat, the guide seat is driven to slide vertically, thus driving the receiving rod to slide vertically. The anti-detachment plate prevents the guide seat from falling off the lifting screws, ensuring the receiving rod can continuously reciprocate. Its structure is simple, easy to operate, and has a significant effect.

[0026] Furthermore, the single yarn feeding mechanism includes a feeding tray base, on which at least two feeding shafts are arranged vertically in a circular array, and single yarn rolls are installed on the feeding shafts; the feeding tray base is provided with a support shaft coaxial with it, and a yarn guide plate is provided at the top of the support shaft; the yarn guide plate is provided with a plurality of yarn guide holes corresponding to the feeding shafts in a circular array, and a yarn clamp located at its center is provided on the yarn guide plate.

[0027] By adopting the above technical solution, the single yarn roll is installed on the feeding shaft. The single yarn on the single yarn roll passes through the corresponding guide hole on the yarn guide plate and is then sent to the yarn combining device for yarn combining, thus avoiding multiple single yarns from tangling together. During the initial threading of the single yarn during the twisting process, a yarn combining clamp can be used to hold the single yarn. Multiple single yarns converge at the yarn combining clamp, facilitating their simultaneous delivery to the yarn combining device. Its simple structure facilitates rapid threading of single yarns, prevents yarn tangling, and ensures the effective twisting and compounding of the yarns.

[0028] Furthermore, each of the twisting units includes two single yarn feeding mechanisms arranged side by side along the length of the frame, and several of the single yarn feeding mechanisms are arranged on a base plate arranged along the length of the frame; a guide rail is provided on the ground on the front side of the frame along its length, and an electric guide wheel is provided at the bottom of the base plate and slidably installed in the guide rail.

[0029] By adopting the above technical solution, each twisting unit includes two single yarn feeding mechanisms. During the twisting process, one single yarn feeding mechanism operates while the other places a single yarn roll on it. The single yarn is pre-passed through the guide holes of the yarn guide plate, and multiple single yarns are initially clamped together using a yarn clamp. When the yarn roll needs to be replaced after twisting, the electric guide wheel slides along the guide rail, and the base plate drives several single yarn feeding mechanisms to slide, moving the empty single yarn feeding mechanism to the working position. The multiple single yarns at the yarn clamp are then quickly passed through the yarn combiner and twister and wound onto the empty spool. This structure is simple, with the two single yarn feeding mechanisms serving as backups for each other. In conjunction with the winding mechanism, replenishment mechanism, and receiving mechanism, only a short stop for manual operation is required for wiring. The installation of the empty spool, the single yarn roll, and the unloading of the yarn roll can be performed during the twisting process, ensuring the continuity of the twisting operation, improving work efficiency, and reducing manual labor intensity.

[0030] In summary, the present invention has the following beneficial effects:

[0031] 1. By setting the winding mechanism as a rotatable square tube, with winding shafts perpendicular to each of the four sides of the square tube, a feeding mechanism is set on one side of the winding mechanism, and a receiving mechanism is set below. When the winding shaft at the upper end of the square tube is working, the feeding mechanism replenishes empty yarn spools to the winding shafts on the side of the tube that are close to it during the winding process. The four winding shafts are alternately used by rotating the square tube. The receiving mechanism automatically receives the yarn spools that have finished winding at the lower end of the square tube, which quickly realizes the replacement of yarn spools. Only the wiring requires a short stop for manual operation, while the installation of empty yarn spools and the unloading of yarn spools can be carried out during the twisting process, ensuring the continuity of the twisting process, improving work efficiency, and reducing the intensity of manual labor.

[0032] 2. By setting an insertion rod that is linked to the feeding component at the feeding mechanism, and a receiving rod that slides vertically in the receiving mechanism with a top rod at the top, the unlocking rod is automatically driven to slide during feeding and receiving, thereby automatically unlocking the limit block. No additional unlocking structure is required, which effectively simplifies the structure and makes operation convenient.

[0033] 3. By setting two backup single yarn feeding mechanisms in each twisting unit, and several single yarn feeding mechanisms are set on a base plate that slides along the length of the frame, the two cooperating winding mechanism, feeding mechanism and receiving mechanism only require a short stop for manual operation when wiring, while the installation of empty yarn spools, the installation of single yarn rolls and the unloading of yarn rolls can be carried out during the twisting process, ensuring the continuity of twisting work, improving work efficiency and reducing manual labor intensity. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure of a composite yarn twisting machine;

[0035] Figure 2 This is a schematic diagram of the twisting unit in a composite yarn twisting machine;

[0036] Figure 3 This is a schematic diagram of the single yarn feeding mechanism in a composite yarn twisting machine;

[0037] Figure 4 This is a schematic diagram of the winding mechanism in a composite yarn twisting machine;

[0038] Figure 5 This is a schematic diagram of the internal structure of a square tube in a composite yarn twisting machine;

[0039] Figure 6 This is a schematic diagram of a limiting component in a composite yarn twisting machine;

[0040] Figure 7 This is a schematic diagram of the feeding component in a composite yarn twisting machine;

[0041] Figure 8 This is a schematic diagram of the internal structure of the feed roller in a composite yarn twisting machine;

[0042] Figure 9 This is a schematic diagram of the receiving mechanism in a composite yarn twisting machine;

[0043] Figure 10 This is a schematic diagram of the receiving component in a composite yarn twisting machine.

[0044] In the diagram, 1. Frame; 11. Guide rail; 12. Yarn doubling device; 13. Twisting device; 14. Yarn guide; 15. Feed roller; 2. Twisting unit; 3. Single yarn feeding mechanism; 31. Base plate; 311. Electric guide wheel; 32. Feeding disc seat; 33. Feeding shaft; 34. Single yarn roll; 35. Support shaft; 36. Yarn guide disc; 37. Yarn guide hole; 38. Yarn doubling clamp; 4. Winding mechanism; 41. Winding rack; 42. Square tube; 421. Tilting shaft; 422. Tilting motor; 423. Support plate; 43. Rewinding shaft; 431. Limiting groove; 432. Unlocking groove; 433. First bevel gear; 44. Drive shaft; 441. Second bevel gear; 442. Micro motor; 5. Limiting assembly; 51. Limiting block; 52. Lug; 53. Tension spring; 54. Unlocking rope; 55. Unlocking rod; 56. Unlocking ring; 57. Reversing shaft; 571. Rope catch 6. Groove; 7. Wire reel; 8. Feeding mechanism; 9. Feeding rack; 10. Feeding assembly; 11. Horizontal plate; 12. Side plate; 13. Hanging shaft; 14. Feeding hole; 15. Feeding groove; 16. Clearing hole; 17. Feeding component; 18. Feeding screw; 19. Feeding motor; 10. Feeding block; 11. Feeding disc; 12. Telescopic ring; 13. Annular slope; 14. Insertion rod; 15. Return spring; 16. Receiving mechanism ; 91. Receiving rack; 911. Moving groove; 912. Moving rack; 92. Receiving assembly; 93. Receiving seat; 931. Guide groove; 94. Receiving rod; 941. Top rod; 942. Guide seat; 95. Lifting screw; 951. Lifting gear; 952. Lifting chain; 953. Lifting motor; 954. Anti-detachment plate; 96. Moving bracket; 961. Moving gear; 962. Moving motor; 10. Controller. Detailed Implementation

[0045] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present invention and are not intended to limit the present invention.

[0046] A composite yarn twisting machine, such as Figure 1 and Figure 2 As shown, the machine includes a frame 1, on which a plurality of twisting units 2 are arranged in an array along its length. At one end of the frame 1, a controller 10 is provided to communicate and control the operation of the plurality of twisting units 2. Each twisting unit 2 includes a single yarn feeding mechanism 3, a yarn combiner 12, a twister 13 and a winding mechanism 4 arranged sequentially from bottom to top. On one side of the frame 1, a feeding mechanism 7 is provided along its length and cooperates with the plurality of winding mechanisms 4. Below the winding mechanism 4, a receiving mechanism 9 is provided to cooperate with it.

[0047] like Figure 2As shown, the single yarn feeding mechanism 3 is used to loosen the single yarns that need to be twisted. Multiple single yarns are sent to the yarn combiner 12 for yarn combining, and then to the twister 13 for twisting to form a composite yarn. Finally, the yarn is sent to the winding mechanism 4 for winding. Feed rollers 15 are provided along the length of the frame 1 between the single yarn feeding mechanism 3 and the yarn combiner 12, between the yarn combiner 12 and the twister 13, and between the twister 13 and the winding mechanism 4. A yarn guide 14 is vertically slidably installed on the feed side of the winding mechanism 4 to ensure that the winding mechanism 4 winds the yarn evenly.

[0048] The structure and working principle of the yarn doubling device 12, the twisting device 13 and the yarn guide 14 are the same as those in the prior art. The controller 10 uses the existing PLC control technology to control the twisting unit 2. All the electrical control components below are connected to the controller 10 for communication control. They are not improvements of this invention, so they will not be described in detail.

[0049] The following section uses a single twisting unit 2 as an example to illustrate the specific structure of each component.

[0050] like Figure 2 and Figure 3 As shown, the single yarn feeding mechanism 3 includes a feeding tray 32. Three vertically arranged feeding shafts 33 are arranged in a circumferential array on the feeding tray 32, and single yarn rolls 34 are mounted on the feeding shafts 33. A support shaft 35 coaxial with the feeding tray 32 is provided, and a yarn guide plate 36 is provided at the top of the support shaft 35. Several yarn guide holes 37 corresponding to the feeding shafts 33 are arranged in a circumferential array on the yarn guide plate 36, and a yarn-binding clamp 38 is located at its center on the yarn guide plate 36. The single yarn on the single yarn roll 34 passes through the corresponding yarn guide holes 37 on the yarn guide plate 36 and is then sent to the yarn-binding device 12 for binding, preventing multiple single yarns from tangling together. During the initial threading of the single yarn during the binding process, the yarn-binding clamp 38 can be used to hold the single yarn, allowing multiple single yarns to converge at the yarn-binding clamp 38 for simultaneous delivery to the yarn-binding device 12.

[0051] like Figure 1 and Figure 2 As shown, to avoid the need to stop the machine to replace the single yarn roll 34 after it is used up, in this embodiment, each twisting unit 2 includes two single yarn feeding mechanisms 3 arranged side by side along the length direction of the frame 1. Several single yarn feeding mechanisms 3 are arranged on a base plate 31 arranged along the length direction of the frame 1, and the feeding tray seat 32 is rotatably mounted on the base plate 31. Figure 1 and Figure 3 As shown, a guide rail 11 is provided on the ground in front of the frame 1 along the length of the frame 1. An electric guide wheel 311 is provided at the bottom of the base plate 31 and is slidably installed in the guide rail 11. The base plate 31 is slidably installed on the guide rail 11 to realize the mobility of several single yarn feeding mechanisms 3.

[0052] like Figure 2 and Figure 3 As shown, the two single yarn feeding mechanisms 3 in each twisting unit 2 are backups for each other. During the twisting process, one single yarn feeding mechanism 3 is in the working position to feed single yarns, while a single yarn roll 34 is placed on the other single yarn feeding mechanism 3. The single yarns are first passed through the guide holes 37 of the guide plate 36, and multiple single yarns are initially clamped together using the twisting clamp 38. When the twisting is completed and the single yarn roll 34 needs to be replaced, the electric guide wheel 311 is controlled to slide along the guide rail 11, and the base plate 31 drives several single yarn feeding mechanisms 3 to slide, moving the empty single yarn feeding mechanism 3 to the working position. The multiple single yarns at the twisting clamp 38 are then quickly passed through the twister 12 and the twister 13 and wound around the empty spool 6. In this way, the installation and replacement of the single yarn roll 34 can be carried out during the twisting process. As long as the wiring is quick, the continuity of the twisting work can be ensured, effectively improving work efficiency and reducing the requirements for the operator's operating speed.

[0053] In this embodiment, as Figure 2 and Figure 4 As shown, the winding mechanism 4 includes a take-up rack 41 mounted on the frame 1. A square tube 42 is mounted on the take-up rack 41 along the length of the frame 1. At both ends of the square tube 42 are axially oriented and rotatably mounted on the take-up rack 41. The rotatable shafts 421 are connected to a rotatable motor 422 that drives their rotation and is fixed to the take-up rack 41. Four winding shafts 43 are rotatably mounted perpendicular to the square tube 42 on its four sides, and these four winding shafts are arranged in a circumferential array around the square tube 42. A yarn bobbin 6 is mounted on each winding shaft 43 and drives the yarn bobbin 6 to rotate and wind up the yarn.

[0054] like Figure 2 and Figure 4 As shown, the take-up shaft 43 on the upper end of the square tube 42 is the take-up working position. The take-up shaft 43 drives the winding drum 6 to rotate and take up the composite yarn. During the take-up process, the feeding mechanism 7 replenishes the square tube 42 and the take-up shaft 43 on its adjacent side wall with empty winding drums 6. After the yarn is finished being wound, the flipping motor 422 drives the flipping shaft 421 to rotate, thereby driving the entire square tube 42 to rotate 90° away from the feeding mechanism 7. During the rotation of the square tube 42, the take-up shaft 43 near the feeding mechanism 7 drives the empty winding drum 6 to rotate to the upper position, while the finished winding drum 6 rotates to the side of the square tube 42 away from the feeding mechanism 7. The feeding mechanism 7 continues to replenish the square tube 42 and the adjacent side wall with empty winding drums 6. This process is repeated until the finished winding drum 6 rotates to a vertical downward position. The receiving mechanism 9 receives the finished winding drum 6, realizing the automatic unloading of the winding drum 6.

[0055] like Figure 2As shown, in the above process, the rotation of the square tube 42 in the winding mechanism 4, in conjunction with the feeding mechanism 7 and the receiving mechanism 9, enables the rapid replacement of the yarn drum 6. Only the wiring requires a short stop for manual operation, while the installation of the empty yarn drum 6 and the unloading of the yarn roll can be carried out during the twisting process, ensuring the continuity of the twisting work, improving work efficiency, and reducing the intensity of manual labor.

[0056] like Figure 5 As shown, to achieve rotational material taking when each take-up shaft 43 is located at the working position on the upper end face of the square tube 42, the square tube 42 has a hollow internal structure, and support plates 423 are respectively provided at both ends of its interior. Four drive shafts 44 arranged along the length direction of the square tube 42 are rotatably mounted between the two support plates 423. The drive shafts 44 are arranged in a circumferential array and are respectively matched with the take-up shafts 43. The end of each take-up shaft 43 near the square tube 42 extends into the square tube 42 and is provided with a first bevel gear 433 coaxial with it. Each drive shaft 44 is provided with a second bevel gear 441 coaxial with it and meshing with the corresponding first bevel gear 433. Each drive shaft 44 is connected to a micro motor 442 that drives its rotation, and the four micro motors 442 are evenly distributed at both ends of the square tube 42. Each time the take-up shaft 43 is in the working position, the corresponding micro motor 442 works, and the micro motor 442 drives the corresponding drive shaft 44 to rotate. Under the meshing action of the second bevel gear 441 and the first bevel gear 433, the take-up shaft 43 on the upper end face of the square tube 42 is driven to rotate, thereby realizing the take-up of the yarn.

[0057] like Figure 4 As shown, to ensure the stability of the winding drum 6 during the winding process and to prevent the wound drum 6 from detaching from the winding shaft 43 during the rotation of the square tube 42, a limiting component 5 is provided at the end of the winding shaft 43 away from the square tube 42 to limit the movement of the winding drum 6. Figure 4 and Figure 6 As shown, in this embodiment, the end of the winding shaft 43 away from the square tube 42 is provided with a limiting groove 431 arranged radially thereon. The limiting component 5 includes two limiting blocks 51 that are slidably installed in the limiting groove 431, either close to or far from each other. The two limiting blocks 51 are provided with lugs 52 forming a T-shaped structure on both sides of the end that is close to each other. A tension spring 53 is fixed between the two lugs 52 on the same side of the two limiting blocks 51 and arranged along the length of the limiting groove 431. Under normal conditions, under the tension of the tension spring 53, the ends of the two limiting blocks 51 that are far from each other extend out of the limiting groove 431 and abut against the end of the winding drum 6, thereby limiting the winding drum 6 and preventing the winding drum 6 from jumping or coming off.

[0058] To prevent the limit block 51 from affecting the feeding mechanism 7 and the receiving mechanism 9, such as Figure 6As shown, an unlocking rope 54 located between two tension springs 53 is connected to one end of the two limiting blocks 51 that are close to each other. When the tension springs 53 are in their normal state, the unlocking rope 54 is in a taut state. An unlocking groove 432 is provided at the end of the winding shaft 43 away from the square tube 42, and the end of the unlocking groove 432 near the limiting groove 431 is connected to the limiting groove 431. An unlocking rod 55 is vertically slidably installed in the unlocking groove 432. An unlocking ring 56 with its axis arranged along the length direction of the limiting groove 431 is provided at the end of the unlocking rod 55 near the limiting groove 431. The unlocking rope 54 passes through the unlocking ring 56. When it is necessary to release the limiting effect of the two limiting blocks 51 on the winding drum 6, drive the unlocking rod 55 to slide along the unlocking groove 432 away from the limiting groove 431. The unlocking rod 55 uses the unlocking ring 56 to pull the unlocking rope 54, pulling the two limiting blocks 51 closer to each other, thereby pulling the limiting blocks 51 completely into the limiting groove 431 and releasing the limiting effect of the limiting blocks 51 on the winding drum 6.

[0059] Among them, such as Figure 6 As shown, a reversing shaft 57 is provided within the limiting groove 431, extending along its width and located on both sides of the unlocking groove 432. A rope-locking groove 571, coaxial with the outer wall of the reversing shaft 57, is provided around it. The unlocking rope 54 is secured in the rope-locking groove 571 from above the reversing shaft 57. In this way, the reversing shaft 57 converts the pulling force of the unlocking rod 55 on the unlocking rope 54 along the length of the unlocking groove 432 into a pulling force on the limiting block 51 along the length of the limiting groove 431, ensuring smooth pulling of the limiting block 51. The rope-locking groove 571 limits the unlocking rope 54, preventing it from slipping on the reversing shaft 57 and ensuring the effective unlocking of the limiting block 51.

[0060] like Figure 1 As shown, in this embodiment, the feeding mechanism 7 includes a feeding rack 71 disposed on one side of the frame 1 and arranged along the length direction of the frame 1. A plurality of feeding components 72, corresponding one-to-one with the corresponding winding mechanism 4, are arranged in an array on the feeding rack 71 along its length direction. Figure 2 and Figure 7 As shown, the feeding assembly 72 includes a horizontal plate 73 arranged along the width direction of the feeding rack 71. A side plate 74 perpendicular to the horizontal plate 73 is provided at the end of the horizontal plate 73 away from the winding mechanism 4. A hanging shaft 75 arranged along the length direction of the horizontal plate 73 is provided on the side of the side plate 74 near the winding mechanism 4. The hanging shaft 75 is located on the extension line of the winding shaft 43 on the square tube 42 and its adjacent side wall, and is coaxial with it. Several coaxial winding drums 6 are threaded onto the hanging shaft 75, and a material-pushing component 8 sliding along its length direction is provided on the hanging shaft 75.

[0061] like Figure 2 and Figure 7As shown, during the operation of the twisting machine, the operator hangs several spools 6 on the hanging shaft 75, and the material-pushing component 8 is located between the side plate 74 and the spool 6 closest to the side plate 74. When it is necessary to replenish an empty spool 6 onto the take-up shaft 43 of the square tube 42, the material-pushing component 8 slides along the hanging shaft 75, driving several spools 6 on the hanging shaft 75 to move synchronously, and pushing the first spool 6 near the end of the hanging shaft 75 near the square tube 42 onto the take-up shaft 43, completing the loading of the empty spool 6. In other embodiments, casters can be provided at the bottom of the replenishment frame 71 to move it a certain distance away, so that there is a certain distance between the end of the hanging shaft 75 and the take-up mechanism 4, which facilitates the replenishment of the spools 6 on the hanging shaft 75.

[0062] like Figure 7 As shown, in this embodiment, the hanging shaft 75 has a feeding hole 751 coaxial with it. The feeding component 8 includes a feeding screw 81 disposed in the feeding hole 751 along its length. One end of the feeding screw 81 near the side plate 74 is rotatably mounted on the side plate 74 and connected to a feeding motor 811 that drives its rotation. The hanging shaft 75 is fitted with a feeding disc 83 coaxially disposed with it, and the outer wall of the hanging shaft 75 has a feeding groove 752 disposed along its length and communicating with the feeding hole 751. The feeding disc 83 is connected to a feeding block 82 that is slidably mounted in the feeding groove 752 and threadedly connected to the feeding screw 81. When it is necessary to add a spool 6 to the take-up shaft 43, the feeding motor 811 works, driving the feeding screw 81 to rotate. Under the threaded connection between the feeding screw 81 and the feeding block 82, and the guiding action of the feeding groove 752 on the feeding block 82, the driving disk 83 is moved along the length of the hanging shaft 75, thereby moving the first spool 6 near the square tube 42 end of the hanging shaft 75 onto the take-up shaft 43.

[0063] like Figure 8 As shown, in order to automatically drive the unlocking rod 55 to slide during the material feeding process, so that the limiting block 51 slides into the limiting groove 431 and avoids affecting the transfer of the winding drum 6 on the hanging shaft 75 to the winding shaft 43 by the dial 83, in this embodiment, the hanging shaft 75 is provided with an eccentric clearance hole 753 at one end near the winding mechanism 4. The clearance hole 753 is provided with a piercing rod 85 that slides along its axial direction and cooperates with the unlocking rod 55. A telescopic ring 84 coaxially mounted is positioned and rotatably installed at one end of the feeding screw 81 near the clearance hole 753. The end of the telescopic ring 84 away from the feeding screw 81 is an annular slope 841. The end of the piercing rod 85 near the telescopic ring 84 cooperates with the annular slope 841. A return spring 851 arranged along its length direction is fixed between the end of the piercing rod 85 that cooperates with the annular slope 841 and the inner end wall of the hanging shaft 75.

[0064] like Figure 8As shown, when the feed screw 81 rotates, it drives the telescopic ring 84 to rotate synchronously. During its rotation, the annular slope 841 of the telescopic ring 84 continuously pushes out the insertion rod 85. Combined with the ejection action of the return spring 851 and the limiting and guiding action of the clearance hole 753 on the insertion rod 85, the insertion rod 85 reciprocates along its length. As the insertion rod 85 moves from the lowest point to the highest point of the annular slope 841, the end of the insertion rod 85 away from the telescopic ring 84 drives the unlocking rod 55 to slide along the unlocking groove 432, causing the limiting blocks 51 to slide closer together, facilitating the insertion of the winding drum 6 onto the take-up shaft 43. As long as one end of the winding drum 6 is partially inserted into the take-up shaft 43, the limiting block 51 will be limited by the inner wall of the winding drum 6. Therefore, even if the insertion rod 85 repeatedly moves back and forth during the continued rotation of the feed screw 81, the limiting block 51 will not affect the continued feeding of the winding drum 6. In this way, during the material feeding process, the material feeding screw 81 can simultaneously drive the insertion rod 85 to move and release the limiting block 51, realizing the linkage between feeding and unlocking. There is no need for manual unlocking, which is convenient and time-saving.

[0065] like Figure 1 and Figure 9 As shown, in this embodiment, the receiving mechanism 9 includes a receiving frame 91 arranged along the length direction of the frame 1, and the receiving frame 91 is provided with a plurality of receiving components 92 arranged in an array along its width direction. Figure 9 and Figure 10 As shown, the receiving assembly 92 includes a receiving seat 93 that is arranged along the length of the receiving frame 91 and slides along the width of the receiving frame 91. Several vertically arranged receiving rods 94, each corresponding to a specific winding mechanism 4, are arrayed on the receiving seat 93 along its length. The receiving rods 94 are coaxially arranged with the winding shaft 43 at the bottom of the corresponding square tube 42. The receiving rods 94 are vertically slidably mounted on the receiving seat 93, and the upper end of the receiving rod 94 is provided with a top rod 941 that cooperates with the unlocking rod 55.

[0066] like Figure 2 and Figure 9As shown, under normal conditions, there is a certain distance between the top of the receiving rod 94 and the square tube 42 to avoid interference between the take-up shaft 43 and the receiving rod 94 during the rotation of the square tube 42. When the take-up shaft 43, after winding the wire, rotates to a vertically downward position, it drives the receiving rod 94 to move vertically upward, causing the top rod 941 to drive the unlocking rod 55 to move vertically upward, thereby pulling the unlocking rope 54 to bring the two limiting blocks 51 closer together, releasing the limiting effect of the limiting blocks 51 on the winding drum 6. The winding drum 6, after winding the wire, falls naturally under the action of gravity and is secured to the receiving rod 94. This not only allows the top rod 941 to drive the unlocking rod 55 to move, thereby releasing the limiting effect of the limiting blocks 51, but also brings the receiving rod 94 closer to the take-up shaft 43, ensuring that the winding drum 6 can fall smoothly and accurately onto the receiving rod 94. After receiving the wire, the receiving assembly 92 is removed, and the other receiving assembly 92 is moved below the take-up mechanism 4 for later use. Of course, in other embodiments, the length of the receiving rod 94 can be set to the sum of the lengths of multiple winding drums 6, so that one receiving rod 94 can receive multiple winding drums 6.

[0067] like Figure 10 As shown, in order to realize the vertical sliding of the drive receiving rod 94, a vertically arranged guide groove 931 is provided on the receiving seat 93. The bottom of the receiving rod 94 is provided with a guide seat 942 that is vertically slidably installed in the guide groove 931. A vertically arranged lifting screw 95 is positioned and rotated in the guide groove 931 and is threadedly connected to the guide seat 942. The bottom of several lifting screws 95 is provided with lifting gears 951 that are coaxial with them. Several lifting gears 951 located on the same receiving seat 93 are connected to each other by a lifting chain 952, and the lifting gears 951 at both ends are connected to a lifting motor 953 that drives them to rotate.

[0068] like Figure 10 As shown, when the receiving rod 94 needs to slide vertically, the lifting motor 953 operates. Under the meshing transmission of the lifting gear 951 and the lifting chain 952, several lifting screws 95 rotate synchronously. Through the threaded connection between the lifting screw 95 and the guide seat 942, and the limiting effect of the guide groove 931 on the guide seat 942, the guide seat 942 is driven to slide vertically, thus driving the receiving rod 94 to slide vertically. The top of the lifting screw 95 is equipped with an anti-detachment plate 954 that cooperates with the guide seat 942 to prevent the guide seat 942 from falling off the lifting screw 95, ensuring that the receiving rod 94 can continuously reciprocate upward and downward.

[0069] like Figure 9As shown, to enable the material receiving assembly 92 to move along the width direction of the material receiving rack 91, each material receiving seat 93 has a movable bracket 96 at both ends of its bottom. The material receiving rack 91 has a movable groove 911 along its width direction, and a movable rack 912 along its length direction is provided on one side of the movable groove 911. The movable bracket 96 is slidably installed within the movable groove 911, and a movable gear 961 that meshes with the movable rack 912 is rotatably mounted on the movable bracket 96. The movable gear 961 is connected to a movable motor 962 that drives its rotation and is fixed to the movable bracket 96. When the material receiving assembly 92 needs to move, the movable motor 962 drives the movable gear 961 to rotate. Under the meshing action of the movable gear 961 and the movable rack 912, the movable bracket 96 is driven to slide along the movable groove 911, thus enabling the entire material receiving assembly 92 to slide. In other embodiments, casters can be provided at the bottom of the material receiving rack 91 to allow the entire material receiving rack 91 to be moved out for unified collection and organization of the winding drum 6.

[0070] Working principle and usage of this invention:

[0071] Twisting and twisting together: In each twisting unit 2, one of the single yarn feeding mechanisms 3 is in the working position, and the take-up shaft 43 on the upper end face of the square tube 42 is the working position. The single yarn on the single yarn roll 34 passes through the corresponding guide hole 37 on the guide plate 36, and is then sent to the yarn combiner 12 for yarn combining to avoid multiple single yarns from getting tangled together. After being twisted at the twister 13, it passes through the yarn guide 14. During this process, the yarn passes around the feeding roller 15 in sequence, and finally the composite yarn is wound around the winding drum 6 on the upper end face of the square tube 42. The corresponding micro motor 442 works to drive the take-up shaft 43 to drive the winding drum 6 to rotate and wind up the composite yarn.

[0072] Single yarn feeding: The two single yarn feeding mechanisms 3 in each twisting unit 2 serve as backups for each other. During the twisting process, one single yarn feeding mechanism 3 is in the working position to feed single yarns, while a single yarn roll 34 is placed on the other single yarn feeding mechanism 3. The single yarns are pre-passed through the yarn guide holes 37 of the yarn guide plate 36, and multiple single yarns are initially clamped together using the yarn clamp 38. When the yarn roll 34 needs to be replaced after twisting, the electric guide wheel 311 is controlled to slide along the guide rail 11, and the base plate 31 drives several single yarn feeding mechanisms 3 to slide, moving the empty single yarn feeding mechanism 3 to the working position. The multiple single yarns at the yarn clamp 38 are then quickly passed through the yarn combiner 12 and the twister 13 and wound around the empty spool 6. In this way, the installation and replacement of the single yarn roll 34 can be carried out during the twisting process. As long as the wiring is quick, the continuity of the twisting work can be guaranteed, effectively improving work efficiency and reducing the requirements for the operator's operating speed.

[0073] End of issue:The take-up shaft 43 on the upper end of the square tube 42 serves as the take-up working position. The limiting block 51 extends under the action of the tension spring 53 to limit the winding drum 6. The take-up shaft 43 drives the winding drum 6 to rotate and take up the composite yarn. During the take-up process, the feeding mechanism 7 replenishes the square tube 42 with empty winding drums 6 placed on the take-up shaft 43 near its side wall. After the yarn is finished being wound, the flipping motor 422 drives the flipping shaft 421 to rotate, thereby driving the entire square tube 42 to rotate 90° away from the feeding mechanism 7. During the rotation of the square tube 42, the take-up shaft 43 near the feeding mechanism 7 drives the empty winding drum 6 to rotate upwards to become the working position, while the completed winding drum 6 rotates to the side of the square tube 42 away from the feeding mechanism 7. The feeding mechanism 7 continues to add empty spools 6 to the square tube 42 and its adjacent side wall. This process is repeated until the spool 6, after winding the wire, rotates to a vertically downward position. The receiving mechanism 9 then receives the spool 6, thus achieving automatic unloading of the spool 6.

[0074] Replenishment: During the operation of the twisting machine, the operator hangs several spools 6 on the hanging shaft 75, and the feeder 8 is located between the side plate 74 and the spool 6 closest to the side plate 74. When it is necessary to add an empty spool 6 to the take-up shaft 43 of the square tube 42, the feeder motor 811 works, driving the feeder screw 81 to rotate. As the inserting rod 85 moves from the lowest point to the highest point of the annular slope 841, the end of the inserting rod 85 away from the telescopic ring 84 drives the unlocking rod 55 to slide along the unlocking groove 432, so that the driving limit blocks 51 slide closer to each other and retract into the limit groove 431. The feeder 83 moves along the length of the hanging shaft 75, moving the first spool 6 near the end of the hanging shaft 75 close to the square tube 42 onto the take-up shaft 43, completing the loading of the empty spool 6.

[0075] Receiving materials: When the winding shaft 43, after completing the winding, rotates to a vertically downward position, the lifting motor 953 operates, driving the receiving rod 94 to move vertically upward. This causes the top rod 941 to drive the unlocking rod 55 to move vertically upward, thereby pulling the unlocking rope 54 and bringing the two limiting blocks 51 closer together. This releases the limiting effect of the limiting blocks 51 on the winding drum 6, allowing the completed winding drum 6 to fall naturally under gravity and engage with the receiving rod 94. Next, the moving motor 962 drives the moving gear 961 to rotate, driving the moving bracket 96 to slide along the moving groove 911, thus enabling the entire receiving assembly 92 to slide. This removes the receiving assembly 92, and the other receiving assembly 92 is moved below the winding mechanism 4 for later use.

[0076] The double single yarn feeding mechanism 3, winding mechanism 4, replenishing mechanism 7, and receiving mechanism 9 of the present invention cooperate with each other to quickly realize the replacement of the yarn spool 6. Only the connection requires a short stop for manual operation, while the installation of the empty yarn spool 6, the installation of the single yarn roll 34, and the unloading of the yarn roll can be carried out during the twisting process, ensuring the continuity of the twisting work, improving work efficiency, and reducing the intensity of manual labor.

[0077] The foregoing description illustrates and describes preferred embodiments of the present invention. As previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A compound twister characterized by: The machine includes a frame (1) and several twisting units (2) arranged in an array along the length of the frame (1). One end of the frame (1) is provided with a controller (10) for communicating and controlling the operation of the several twisting units (2). Each twisting unit (2) includes a single yarn feeding mechanism (3), a yarn doubling device (12), a twisting device (13), and a winding mechanism (4) arranged sequentially from bottom to top. A feeding mechanism (7) is provided on one side of the frame (1) along its length and cooperates with the several winding mechanisms (4). A receiving mechanism (9) is provided below the winding mechanism (4) to cooperate with it. The winding mechanism (4) includes a take-up rack (41) mounted on a frame (1). The take-up rack (41) is provided with a square tube (42) arranged along the length of the frame (1). Both ends of the square tube (42) are provided with a rotating shaft (421) arranged along its axial direction and rotatably mounted on the take-up rack (41). The rotating shaft (421) is connected to a rotating motor (422) that drives it to rotate and is fixed on the take-up rack (41). The four sides of the square tube (42) are respectively rotatably mounted with a winding shaft (43) perpendicular to it, and the four winding shafts (43) are arranged in a circumferential array around the square tube (42). A winding drum (6) is mounted on the winding shaft (43) and drives the winding drum (6) to rotate and wind up the yarn. The end of the winding shaft (43) away from the square tube (42) is provided with a limiting component (5) for limiting the winding drum (6). The square tube (42) has four drive shafts (44) arranged in a circular array inside, each corresponding to a take-up shaft (43). Support plates (423) are provided at both ends of the square tube (42). The four drive shafts (44) are rotatably mounted on the support plates (423). The end of the take-up shaft (43) near the square tube (42) extends into the square tube (42) and is provided with a first bevel gear (433) coaxial with it. Each drive shaft (44) is provided with a second bevel gear (441) coaxial with it and meshing with the corresponding first bevel gear (433). Each drive shaft (44) is connected to a micro motor (442) that drives it to rotate. The winding shaft (43) is provided with a limiting groove (431) arranged radially at the end away from the square tube (42). The limiting assembly (5) includes two limiting blocks (51) that are slidably installed in the limiting groove (431) and are either far apart or close to each other. The two limiting blocks (51) are provided with lugs (52) forming a T-shaped structure on both sides of the end that is close to each other. A tension spring (53) is fixed between the two lugs (52) on the same side of the two limiting blocks (51) and is arranged along the length direction of the limiting groove (431). Under normal conditions, under the tension of the tension spring (53), the ends of the two limiting blocks (51) that are far apart from each other extend out of the limiting groove (431) and abut against the end of the winding drum (6). The winding shaft (43) has an unlocking groove (432) coaxially arranged at its end away from the square tube (42). The end of the unlocking groove (432) near the limiting groove (431) is connected to the limiting groove (431). The ends of the two limiting blocks (51) that are close to each other are connected to unlocking ropes (54). When the tension spring (53) is in its normal state, the unlocking ropes (54) are in a taut state. An unlocking rod (55) is vertically slidably installed in the unlocking groove (432). The end of the rod (55) near the limiting groove (431) is provided with an unlocking ring (56) whose axis is arranged along the length direction of the limiting groove (431), and the unlocking rope (54) passes through the unlocking ring (56); the limiting groove (431) is provided with a reversing shaft (57) arranged along its width direction and located on both sides of the unlocking groove (432), and the outer wall of the reversing shaft (57) is provided with a rope-locking groove (571), and the unlocking rope (54) is locked in the rope-locking groove (571) from above the reversing shaft (57); The receiving mechanism (9) includes a receiving frame (91) arranged along the length of the frame (1), and the receiving frame (91) is provided with a plurality of receiving components (92) arranged in an array along its width direction; the receiving component (92) includes a receiving seat (93) arranged along the length of the receiving frame (91), and the receiving seat (93) is provided with a plurality of vertically arranged receiving rods (94) arranged in an array along its length direction and corresponding one-to-one with a plurality of winding mechanisms (4), the receiving rods (94) are coaxially arranged with the winding shaft (43) at the bottom of the corresponding square tube (42); the receiving rods (94) are vertically slidably installed on the receiving seat (93), and the upper end of the receiving rods (94) is provided with a top rod (941) that cooperates with the unlocking rod (55).

2. A combined twisting machine as claimed in claim 1, characterized in that: The feeding mechanism (7) includes a feeding rack (71) arranged on one side of the frame (1) and along the length of the frame (1). The feeding rack (71) is provided with a plurality of feeding components (72) that correspond one-to-one with the corresponding winding mechanism (4) along its length. The feeding component (72) includes a horizontal plate (73) arranged along the width of the feeding rack (71). The end of the horizontal plate (73) away from the winding mechanism (4) is provided with a side plate (74) perpendicular to it. The side plate (74) near the winding mechanism (4) is provided with a hanging shaft (75) arranged along the length of the horizontal plate (73) and located on the extension line of the corresponding winding shaft (43) on the square tube (42). A plurality of winding drums (6) coaxial with it are threaded on the hanging shaft (75), and a material feeding component (8) that slides along its length is provided on the hanging shaft (75).

3. A combined twisting machine as claimed in claim 2, characterized in that: The hanging shaft (75) is provided with a feeding hole (751) coaxial with it, and the outer wall of the hanging shaft (75) is provided with a feeding groove (752) arranged along its length and communicating with the feeding hole (751); the feeding component (8) includes a feeding screw (81) arranged in the feeding hole (751) along its length, and the feeding screw (81) is rotatably mounted on the side plate (74) at one end near the side plate (74), and is connected to a feeding motor (811) that drives it to rotate; the hanging shaft (75) is provided with a dial (83) coaxial with it, and the dial (83) is connected to a dial block (82) that is slidably installed in the feeding groove (752) and threadedly connected to the feeding screw (81).

4. A composite yarn twisting machine according to claim 3, characterized in that: The hanging shaft (75) has a clearance hole (753) at one end near the winding mechanism (4). The clearance hole (753) has a piercing rod (85) that slides along its axial direction and cooperates with the unlocking rod (55). The feeding screw (81) has a telescopic ring (84) that is coaxially mounted on one end near the clearance hole (753). The end of the telescopic ring (84) away from the feeding screw (81) is an annular slope (841). The end of the piercing rod (85) near the telescopic ring (84) cooperates with the annular slope (841). The end of the piercing rod (85) that cooperates with the annular slope (841) is fixed with a return spring (851) that is set along its length direction between the end of the piercing rod (85) that cooperates with the annular slope (841) and the inner end wall of the hanging shaft (75).

5. A composite yarn twisting machine according to claim 1, characterized in that: The receiving seat (93) is provided with a vertically arranged guide groove (931). The bottom of the receiving rod (94) is provided with a guide seat (942) that is vertically slidably installed in the guide groove (931). A vertically arranged lifting screw (95) is positioned and rotated in the guide groove (931). The lifting screw (95) is threadedly connected to the guide seat (942) and its top is provided with an anti-detachment plate (954) that cooperates with the guide seat (942). The bottom of several lifting screws (95) is provided with lifting gears (951) that are coaxial with them. Several lifting gears (951) located on the same receiving seat (93) are connected by a lifting chain (952) for transmission. The lifting gears (951) at both ends are connected to a lifting motor (953) that drives them to rotate.

6. A composite yarn twisting machine according to claim 1, characterized in that: The single yarn feeding mechanism (3) includes a feeding tray seat (32), on which at least two feeding shafts (33) are arranged vertically in a circular array, and a single yarn roll (34) is installed on the feeding shaft (33); the feeding tray seat (32) is provided with a support shaft (35) coaxial with it, and a yarn guide plate (36) is provided at the top of the support shaft (35). The yarn guide plate (36) is provided with a plurality of yarn guide holes (37) corresponding to the feeding shaft (33) in a circular array, and a yarn clamp (38) located at its center is provided on the yarn guide plate (36).

7. A composite yarn twisting machine according to claim 6, characterized in that: Each twisting unit (2) includes two single yarn feeding mechanisms (3) arranged side by side along the length of the frame (1), and several single yarn feeding mechanisms (3) are arranged on a base plate (31) arranged along the length of the frame (1); a guide rail (11) is provided on the ground on the front side of the frame (1) along its length, and an electric guide wheel (311) is provided at the bottom of the base plate (31) and slidably installed in the guide rail (11).

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