An overhang type multiple twist spinning device and a spinning method

Abstract

The application discloses a cantilever type multiple twist spinning device and a spinning method, and the device comprises a cantilever type multiple twist mechanism composed of a week wheel system and a covering yarn twisting mechanism, the week wheel system comprises a hollow spindle, a cantilever, a week wheel Z1 and an outer gear ring Z2, the fixed end of the cantilever is arranged on the hollow spindle, and the week wheel Z1 is arranged on the cantilever; the week wheel Z1 is engaged with the outer gear ring Z2 fixed on a rack, and when the hollow spindle rotates, the week wheel Z1 revolves around the hollow spindle and rotates by itself; the covering yarn twisting mechanism is arranged on the week wheel Z1, the rotation of the week wheel Z1 makes a plurality of covering yarns B be twisted and combined to form a covering thread C, and after the covering thread C enters the hollow spindle, the revolution of the week wheel Z1 completes the twisting and covering of the covering thread C on the core yarn A to form a rope cable D. The application designs a secondary twisting technology comprising multiple twist twisting and hollow spindle twisting, and through the design of the transmission ratio of the cantilever and the multiple twist spindle, the efficient twisting of one rotation and multiple twists is realized.

Description

Technical Field

[0001] This invention relates to textile machinery and spinning technology, and more particularly to a cantilevered multi-twist spinning device and spinning method. Background Technology

[0002] Traditional twisting technology involves one twist per spindle rotation, resulting in low production efficiency. Therefore, achieving a significant increase in twisting efficiency through multi-twist technology with a single spindle rotation has become a goal for the textile industry to achieve high-efficiency production.

[0003] Double twisting technology is a mature twisting technique that achieves two twists with a single spindle rotation, breaking through the limitations of traditional single-rotation-one-twist technology. Its twisting efficiency is several times higher than traditional twisting equipment, making it highly sought after in the market. Chinese textile enterprises began importing double twisting machines in the early 1980s, recognizing their significant advantages in high production efficiency and product quality, leading to strong market demand. After more than forty years of development, my country has made tremendous progress in double twisting machine production technology, producing a diverse range of high-quality machines that hold an important position in the global textile machinery market.

[0004] The patent "Planetary Gear Composite Twisting Device (201410331775.7)" proposes a planetary gear composite twisting device. However, this patent does not disclose the specific process of combining, twisting, and plying single fiber yarns into rope. Through a study of this invention patent, the specific process of the patent can be preliminarily interpreted as follows: Figure 7 As shown, because the feed and output ends are continuous and there is no free end, twisting the yarn in the middle of a continuous yarn at both ends can only create a false twist, not a true twist. In this patent, multiple yarns are twisted on both sides of the planetary gear compound twister as it rotates. On one hand, the twist on both sides of the planetary gear compound twister is the same but the twist direction is opposite, resulting in a false twist. On the other hand, when twisting occurs on the feed end side of the planetary gear compound twister, the yarns become twisted together and cannot be threaded one by one into the holes of the planetary gears. In other words, this invention's device is fundamentally incapable of manufacturing. Therefore, this patented solution is not feasible in terms of spinning principles.

[0005] The patent "Twisting and Bundling Mechanism for Producing Twisted Covered Yarn (201920200182.5)" proposes a twisting and bundling mechanism for producing twisted covered yarn. The spinning principle of this patent is as follows: the outer covering yarn passes through the hollow shaft of the motor and the rotating guide rod, and at the guide ring (holding point), it merges with the core yarn. The core yarn is fixed on a positioning bracket, and a positioning magnet on the bracket prevents it from rotating with the output shaft. A generator or wireless power transmission module drives and controls the active yarn feeding roller to feed the yarn at a set speed. The core yarn and the outer wrapping yarn merge at the guide ring. The outer wrapping yarn rotates around the core yarn, and with each rotation, it forms a wrapping twist on the core yarn. Simultaneously, a self-twisting twist is generated at the lower part of the rotating guide rod. The self-twisting direction is opposite to the wrapping direction. Its effect is equivalent to the outer wrapping yarn rotating clockwise (or counterclockwise) while simultaneously revolving around the core yarn counterclockwise (or clockwise). After completing the self-twisting and wrapping, the twisted wrapped yarn is drawn to the external winding mechanism by the active roller and the passive roller. In this patent, a complex mechanism with two transmission units is used. One is the outer wrapping yarn, which is driven by an independent motor to drive the guide rod. The rotation of the guide rod completes the self-twisting of the outer wrapping yarn and the wrapping of the core yarn. The two twists are the same in magnitude but opposite in direction, which has significant limitations in the process. The other is the core yarn, which is driven by an independent motor to output the core yarn evenly. The core yarn is wrapped by the outer wrapping yarn, and the core yarn itself does not rotate or twist. Meanwhile, in this patent, the outer yarn is twisted into a single yarn, and the core yarn is only partially covered by this single yarn.

[0006] Therefore, how to efficiently complete the processing of ropes and cables with structural differentiation and diversification in a short process is an urgent problem to be solved. Summary of the Invention

[0007] Purpose of the invention: In view of the problems and deficiencies of the above-mentioned technologies, the present invention designs a cantilevered multi-twist spinning device and spinning method, aiming to provide a method that can use multiple yarns of the same type or multiple yarns with different properties to achieve multiple functions such as doubling, twisting, and wrapping in one go, and complete the processing of ropes and cables, effectively shortening the production process and improving production efficiency.

[0008] Technical solution: The cantilever multi-twist spinning device of the present invention includes a hollow spindle, a cantilever mounted on the hollow spindle, and a rotating wheel Z1 mounted on the cantilever. The rotating wheel Z1 meshes with an external gear ring Z2 fixed on the frame. When the hollow spindle rotates, the rotating wheel Z1 revolves around the hollow spindle and rotates on its own axis. The rotating wheel Z1 is provided with a covering yarn twisting mechanism, which is used to twist several covering yarns B in the covering yarn twisting mechanism to form a covering yarn C as the rotating wheel Z1 rotates. The covering yarn C completes the twisting and covering of the core yarn A passing through the hollow shaft of the hollow spindle to form a rope D as the rotating wheel Z1 revolves.

[0009] Preferably, the covered yarn twisting mechanism includes a doubling spindle, a doubling spindle center tube, a yarn storage bin, and a second yarn guide hook; the doubling spindle is mounted on a rotary wheel Z1 and rotates coaxially with the rotary wheel Z1; the yarn storage bin is mounted on the doubling spindle; the doubling spindle center tube passes through the yarn storage bin and is fixed on the doubling spindle; the second yarn guide hook is mounted on a hollow spindle; the doubling spindle center tube is provided with a yarn guide tube and / or a first yarn guide hook, which facilitates the formation of covered yarns with differentiated and diversified structures.

[0010] Preferably, the yarn guide tube and the first yarn guide hook are detachably connected to the center tube of the twisting spindle, making them easy to replace with each other.

[0011] Preferably, the yarn storage drum is kept relatively fixed to the hollow spindle by a magnetic ring to prevent the yarn storage drum from rotating together with the twisting spindle, thereby ensuring that the twisting mechanism achieves double twisting in one rotation.

[0012] Preferably, the yarn storage drum is provided with several covered yarn packages, and the center tube of the twisted spindle is provided with a corresponding number of yarn guide tubes and / or first yarn guide hooks.

[0013] Preferably, several cantilever arms H are provided, and the cantilever arms are distributed in a radial pattern around the hollow ingot.

[0014] Preferably, the hollow spindle is provided with a yarn guide hole for allowing the covering yarn C to enter the hollow spindle and twist and cover the core yarn A passing through the hollow shaft of the hollow spindle to form a rope D.

[0015] The spinning method of the cantilevered multi-twist spinning device of the present invention includes the following steps:

[0016] (a) Start the cantilevered multi-twist spinning device and the core yarn A enters the hollow spindle;

[0017] (b) The hollow spindle rotates, which drives the cantilever H on the hollow spindle and the rotating wheel Z1 on the cantilever H to rotate synchronously. The rotating wheel Z1 meshes with the external gear ring Z2 on the frame and rotates, forming the rotation of the rotating wheel Z1, which causes multiple covered yarns B in the covered yarn twisting mechanism to be twisted together to form covered yarn C.

[0018] (c) Several covering threads C enter the hollow spindle through the yarn guide holes located on the side of the hollow spindle. As the rotating wheel Z1 revolves, the covering threads C twist and cover the core yarn A in the hollow spindle to form a rope D.

[0019] Preferably, the covered yarn twisting mechanism includes a doubling spindle, a doubling spindle center tube, a yarn storage bin, and a second yarn guide hook; the doubling spindle is mounted on a rotary wheel Z1 and rotates coaxially with the rotary wheel Z1; the yarn storage bin is mounted on the doubling spindle; the doubling spindle center tube passes through the yarn storage bin and is fixed on the doubling spindle; the second yarn guide hook is mounted on a hollow spindle; the doubling spindle center tube is provided with a yarn guide tube and / or a first yarn guide hook.

[0020] Preferably, the yarn storage drum is provided with several covered yarn packages, and the center tube of the twisted spindle is provided with a corresponding number of yarn guide tubes and / or first yarn guide hooks.

[0021] Preferably, the multiple covering yarns B in the covering yarn twisting mechanism are twisted together to form the covering yarn C in the following three ways:

[0022] (i) The center tube of the doubling spindle is equipped with a yarn guide tube with the same number of covered yarns. All the covered yarns in the yarn storage tank are led out through the yarn guide tube, the center tube of the doubling spindle, and the doubling spindle to the second yarn guide hook. The yarns are twisted at the second yarn guide hook to form the first covered yarn C1.

[0023] (ii) Replace all the yarn guide tubes in the yarn storage tank with the first yarn guide hook. All the covered yarns of the covered yarns in the yarn storage tank are directly led out to the second yarn guide hook through the first yarn guide hook. The second covered yarn C2 is formed at the second yarn guide hook. The second covered yarn C2 is a combined yarn of multiple covered yarns B without twist.

[0024] (iii) Replace part of the yarn guide tube in the yarn storage tank with the first yarn guide hook. The covering yarn of part of the covered yarn in the yarn storage tank is directly led out to the second yarn guide hook as the core yarn through the first yarn guide hook. The covering yarn of part of the covered yarn is led out to the second yarn guide hook as the covering yarn through the yarn guide tube, the center tube of the doubling spindle, and the doubling spindle. The yarn is twisted and wrapped at the second yarn guide hook to form a third covered yarn C3. The third covered yarn has a core-wrapped structure.

[0025] Preferably, the twisting and wrapping of the core yarn A in the hollow spindle to form a rope D consists of several wrapping lines C, which are one or more combinations of the first wrapping line C1, the second wrapping line C2, and the third wrapping line C3. This can form ropes D with various structures to meet the needs of different application scenarios.

[0026] Beneficial Effects: Compared with existing technologies, this invention has the following significant advantages: 1. By using a single device employing multi-yarn doubling and twisting, multi-strand doubling and twisting, and core-wrapping technologies, the production of ropes and cables is completed in one go, realizing the integration of multiple functions such as doubling, twisting, and core-wrapping. Compared with the traditional spinning process, it has the functions of three different machines: doubling machine, twisting machine, and core-wrapping machine. A single machine can process up to dozens of yarns into composite ropes and cables, effectively shortening the spinning process, reducing labor, and saving energy. This efficient short-process production technology improves the modernization level of the textile industry; 2. It adopts a two-stage twisting technology. The first twisting is the rotation of the twisting spindle, which completes the twisting of several wrapped yarns in the yarn storage bin. The twisting spindle performs two twists with one rotation, and the second... The second twisting is achieved by the revolution of the doubling spindle, which completes the wrapping and twisting of the core yarn by the covered yarn. One twist per revolution, through the design of the cantilever and the transmission ratio of the doubling spindle, the efficient twisting effect of multiple twists per revolution of the main shaft can be achieved through two twisting processes; 3. Multiple yarns with different properties can be used to form three different structures of covered yarn by using various yarn threading methods, realizing the processing of multiple composite structure ropes in one go, with strong production adaptability; 4. Since the yarn storage cylinder on the doubling spindle generates a large centrifugal force when the doubling spindle on the rotating wheel revolves, it affects the stability of the equipment and the wear of the structure. By setting an external gear ring to mesh with the rotating wheel, the external gear ring can provide support to avoid the doubling spindle bearing a large shear stress at the cantilever, which can further improve the rotational stability of the doubling spindle and reduce the wear of the equipment. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the present invention;

[0028] Figure 2 Figure 1 is a top view of the rotating wheel system structure of the present invention; wherein, Figure 2(a) shows a configuration with 3 cantilever arms and rotating wheels, Figure 3(b) shows a configuration with 4 cantilever arms and rotating wheels, and Figure 4(c) shows a configuration with 5 cantilever arms and rotating wheels.

[0029] Figure 3 The transmission principle and steering coordination diagram of the cantilevered multi-twist spinning device of the present invention are shown in Figure (a), which is a transmission gear train arrangement diagram, and Figure (b) is a planetary gear train steering diagram.

[0030] Figure 4 This is a schematic diagram of the arrangement of covered yarn bobbins inside the yarn storage bin of the double-twist spindle of the present invention; wherein, Figure (a) shows 3 covered yarn bobbins, Figure (b) shows 4 covered yarn bobbins, and Figure (c) shows 5 covered yarn bobbins.

[0031] Figure 5 This is a schematic diagram of the first yarn guide hook structure of the present invention;

[0032] Figure 6 This is a schematic diagram of the formation of the composite structure coating line of the present invention;

[0033] Figure 7 The diagrams are for existing patented spinning technology, where Figure (a) is a spinning process diagram and Figure (b) is a sun gear rotation diagram.

[0034] Among them, 1. Core yarn feeding mechanism; 11. Core yarn bobbin; 12. Unwinding roller; 13. Guide roller; 2. Cantilever multi-twist mechanism; 20. Yarn storage bin; 21. Covered yarn bobbin; 22. Center tube of multi-twist spindle; 23. Hollow spindle; 24. Guide hole; 25. Second guide hook; 26. Guide tube; 27. Magnetic ring; 28. Multi-twist spindle; 29. ​​First guide hook; 3. Rope winding mechanism; 30. Rope bobbin; 31. Winding roller; 32. Guide roller; H. Cantilever; Z1. Rotating wheel; Z2. External gear ring; M1. Motor; A. Core yarn; B. Covered yarn; C. Covered thread; C1. First covering thread; C 2、 Second sheathing line; C3, third sheathing line; D, rope / cable. Detailed Implementation

[0035] The technical solution of the present invention will be further described below with reference to the accompanying drawings.

[0036] Example 1

[0037] like Figure 1-6 As shown, the cantilevered multi-twist spinning device of the present invention includes a core yarn feeding mechanism 1, a cantilevered multi-twist mechanism 2, and a rope winding mechanism 3.

[0038] The core yarn feeding mechanism 1 is a device for feeding core yarn, including a core yarn bobbin 11, an unwinding roller 12, and a guide roller 13. The core yarn bobbin 11 is placed on the unwinding roller 12. The rotation of the unwinding roller 12 drives the core yarn A to be unwound from the core yarn bobbin 11 and enters the hollow spindle 23 in the cantilevered multi-twist mechanism 2 through the guide roller 13.

[0039] The cantilevered multi-twisting mechanism 2 includes a motor M1 and a hollow spindle 23. The motor M1 provides power to rotate the hollow spindle 23 via a motor pulley d1 and a main shaft pulley d2, driving the hollow spindle 23 to rotate. A cantilever H is provided on the hollow spindle 23, radiating outwards along the central axis of the hollow spindle, and rotating with the hollow spindle 23. A rotating wheel Z1 is provided on the arm of the cantilever H, rotating together with the cantilever H to form a revolution around the hollow spindle 23. An external gear ring Z2 is fixed on the frame, meshing with the rotating wheel Z1. During its revolution, the rotating wheel Z1 rotates around the external gear ring Z2, forming its own rotation. The hollow spindle 23, cantilever H, rotating wheel Z1, and external gear ring Z2 form a rotating wheel system, as shown below. Figure 2 , Figure 3 As shown. The rotary wheel Z1 is equipped with a covering yarn twisting mechanism.

[0040] The covered yarn twisting mechanism includes a doubling spindle 28, a doubling spindle center tube 22, a yarn guide tube 26, a yarn storage tank 20, a second yarn guide hook 25, and a magnetic ring 27. Figure 1 and 4 As shown. The yarn guide tube 26 is detachably connected to the center tube 22 of the doubling spindle. One end of the yarn guide tube 26 is located on and connected to the center tube 22 of the doubling spindle, and the other end is a free end located above the wrapped yarn 21 inside the yarn storage bin 20. The center tube 22 of the doubling spindle passes through the yarn storage bin 20 and is mounted on the doubling spindle 28 via a bearing. The yarn storage bin 20 is located above the doubling spindle 28, and each yarn storage bin 20 is relatively fixed to the hollow spindle 23 by a magnetic ring 27 to prevent the yarn storage bin 20 from rotating with the doubling spindle 28, thereby ensuring that the doubling mechanism achieves double twisting in one rotation. Several wrapped yarn 21 are arranged inside the yarn storage bin 20. The covering yarn B from the plurality of covered yarn cones 21 is led out through the yarn guide tube 26 into the center tube 22 of the doubling spindle, and then led out from the doubling spindle 28 into the second yarn guide hook 25 provided on the hollow spindle 23. The second yarn guide hook 25 is provided on the side of the hollow spindle 23 and located at the top of the doubling spindle center tube 22. Under the action of the covering yarn twisting mechanism, the plurality of covering yarns B are twisted at the second yarn guide hook 25 to form a first covered yarn C1. The twisted first covered yarn C1 enters the hollow spindle 23 through the yarn guide hole 24 provided on the side of the hollow spindle 23, and wraps around the core yarn A that passes through the hollow spindle 23 to form a rope D.

[0041] The rope winding mechanism 3 is a rope winding device, including a guide roller 32 and a winding roller 31. The rope D led out from the guide roller 32 at the end of the cantilevered multi-twist mechanism is wound up by the rotation of the winding roller 31 to form a rope drum 30.

[0042] The number of covered yarn cones 21 inside the yarn storage tank 20 can be designed according to the needs of the processed product, for example, 1-10, and each covered yarn cone can use yarns with the same or different properties. When one covered yarn cone is set, the covered yarn can be a ply yarn of multiple yarns combined together, or a filament bobbin (generally a multifilament composed of multiple monofilaments); when monofilaments are used, the number of covered yarn cones 21 inside the yarn storage tank 20 is designed according to the needs of the processed rope and cable product. In this embodiment, only 3, 4, and 5 covered yarn cones are designed in the yarn storage tank 20, such as... Figure 4 As shown, it is not actually limited to these three designs.

[0043] The number of sets of the Z1 rotating wheel and the twisting mechanism can be designed according to the needs of the processed products, for example, 2-30 sets, and each set can use yarns with the same or different properties. In this invention, only 3, 4, or 5 sets of the Z1 rotating wheel and the twisting mechanism are designed. Figure 2As shown, it is not actually limited to these three designs.

[0044] The working principle of the cantilever multi-twist spinning device is as follows: Motor M1 drives the hollow spindle 23 to rotate, and the cantilever H mounted on the hollow spindle 23 rotates accordingly. The rotary wheel Z1 mounted on the cantilever H meshes with the external gear ring Z2 fixed on the frame. The rotary wheel Z1 rotates and revolves with the rotation of the cantilever H. The multi-twist spindle 28 is mounted on the rotary wheel Z1 and rotates together with the rotary wheel Z1. The yarn storage tank 20 is mounted on the multi-twist spindle 28. The yarn storage tank 20 is fixed by the magnetic ring 27 set on the hollow spindle 23 to prevent the yarn storage tank 20 from rotating with the multi-twist spindle 28. Through the arrangement of the multi-twist spindle 28, the yarn storage tank 20, the magnetic ring 27, and the second yarn guide hook 25, the multi-twist spindle 28 is rotated. The first covered yarn C1 is formed by the double twisting function of 8 pairs of covered yarns B through a one-to-two twisting process. The first covered yarn C1 is wrapped and twisted to form the core yarn A through the setting of the double twisting spindle 28, yarn guide hook 25, cantilever H, hollow spindle 23, and yarn guide hole 24. The yarn storage tank 20 is provided with several covered yarn cones 21, which are combined and twisted by the double twisting spindle 28 to form a covered yarn C. The double twisting spindle 28 and the yarn storage tank 20 are set on several cantilever H, which can form several covered yarns. Each covered yarn enters the hollow shaft of the hollow spindle 23 through the second yarn guide hook 25 and the yarn guide hole 24, and is combined, wrapped, and twisted to form the rope D.

[0045] Example 2

[0046] Replace all the yarn guide tubes 26 in the covered yarn twisting mechanism of Example 1 with the following... Figure 5 The first yarn guide hook 29 is shown. All the covered yarns of the covered bobbins 21 in the yarn storage tank 20 are led directly to the second yarn guide hook 25 without passing through the doubling spindle 28. At the second yarn guide hook 25, the yarns are twisted to form a second covered yarn C2. The second covered yarn C2 is a combined yarn of multiple covered yarns B without twist. The twisted second covered yarn C2 enters the hollow spindle 23 through the yarn guide hole 24 located on the side of the hollow spindle 23, covering the core yarn A that passes through the hollow spindle 23 to form a rope D. Other structural designs are the same as in Embodiment 1.

[0047] Example 3

[0048] In Example 1, some of the yarn guide tubes 26 in the covered yarn twisting mechanism are replaced with... Figure 6The first yarn guide hook 29 is shown. Part of the yarn covering the bobbin 21 in the yarn storage tank 20 is led directly to the second yarn guide hook 25 as core yarn without passing through the doubling spindle 28 via the first yarn guide hook 29. Part of the yarn covering the bobbin 21 is led out to the second yarn guide hook 25 as covering yarn via the yarn guide tube 26, the center tube 22 of the doubling spindle, and the doubling spindle 28. At the second yarn guide hook 25, a third covering yarn C3 is formed, which has a core-spun structure. The twisted third covering yarn C3 enters the hollow spindle 23 through the yarn guide hole 24 located on the side of the hollow spindle 23, covering the core yarn A that passes through the hollow spindle 23 to form a rope D. Other structural designs are the same as in Embodiment 1.

[0049] Example 4

[0050] The cantilever multi-twist spinning method of the present invention includes the following steps:

[0051] (a) The core yarn A of the core yarn feeding mechanism 1 is drawn out by the rotation of the unwinding roller 12 and enters the hollow spindle 23 through the guide roller 13;

[0052] (b) The motor M1 of the cantilever multi-twisting mechanism 2 drives the hollow spindle 23 through the motor pulley D1 and the hollow spindle main shaft pulley D2. The hollow spindle 23 drives the cantilever H to rotate together. The planetary wheel Z1 set on the cantilever H forms a revolution around the hollow spindle 23 and a rotation around the center of the planetary wheel Z1 in the transmission gear system; so that the multiple covering yarns B in the covering yarn twisting mechanism are combined and twisted at the second yarn guide hook 25 to form the covering yarn C;

[0053] (c) Several covering threads C enter the central hollow tube of the hollow spindle 23 through the yarn guide hole 24 on the side of the hollow spindle 23 and merge with the core yarn A. As the rotating wheel Z1 revolves, the core yarn A is covered and twisted to form a rope D.

[0054] (d) In the rope winding mechanism 3, the rope passing through the hollow spindle 23 passes through the guide roller 32 and completes the winding of the rope D under the rotation of the winding roller 31.

[0055] The multiple covering yarns B in the covering yarn twisting mechanism are twisted together to form the covering yarn C in the following three ways:

[0056] (i) The center tube 22 of the twisted spindle is provided with the same number of guide tubes 26 as the covered yarn 21. All the covered yarn of the covered yarn 21 in the yarn storage tank 20 is led out to the second guide hook 25 through the guide tube 26, the center tube 22 of the twisted spindle, and the twisted spindle 28. The yarn is twisted at the second guide hook 25 to form the first covered yarn C1.

[0057] (ii) Replace all the yarn guide tubes 26 in the yarn storage tank 20 with the first yarn guide hook 29. All the covering yarns of the covered yarns 21 in the yarn storage tank 20 are directly led out to the second yarn guide hook 25 through the first yarn guide hook 29, and a second covering line C2 is formed at the second yarn guide hook 25. The second covering line C2 is a combined yarn of multiple covering yarns B, without twist.

[0058] (iii) Replace part of the yarn guide tube 26 in the yarn storage tank 20 with the first yarn guide hook 29. The covering yarn of part of the covered yarn 21 in the yarn storage tank 20 is directly led out to the second yarn guide hook 25 as the core yarn through the first yarn guide hook 29. The covering yarn of part of the covered yarn 21 is led out to the second yarn guide hook 25 as the covering yarn through the yarn guide tube 26, the center tube 22 of the doubling spindle, and the doubling spindle 28. The yarn is twisted at the second yarn guide hook 25 to form a third covered yarn C3. The third covered yarn C3 is a core-wrapped structure.

[0059] In the hollow spindle 23, the core yarn A is twisted and wrapped to form a rope D. Several wrapping lines C are formed, which are one or more combinations of the first wrapping line C1, the second wrapping line C2, and the third wrapping line C3. This can form ropes D with various structures to meet the needs of different application scenarios.

[0060] The cantilevered multi-twist mechanism 2 in this invention operates in two steps. The first step involves the rotation of the rotary wheel Z1, which twists multiple covered yarns B together to form a covered yarn C. The second step involves the revolution of the rotary wheel Z1, which twists the core yarn A with the covered yarns C to form a rope D. Furthermore, the rotation direction of the rotary wheel Z1 in the first step is opposite to its revolution direction in the second step, and the twist directions of the covered yarn C and the rope D are opposite, resulting in a stable and flexible rope D. The twist rate during the two-step operation in this invention is calculated as follows:

[0061] In case (i), let the speed of motor M1 be n (r / min), and the speed of cantilever H be n H The calculation formula is:

[0062]

[0063] Where d1 represents the diameter of the motor pulley (mm) and d2 represents the diameter of the hollow spindle main pulley (mm).

[0064] Since the external gear ring Z2 is fixed, the planetary wheel Z1 is driven by the cantilever H, and the rotation direction of the planetary wheel Z1 is opposite to the rotation direction of the cantilever H, see... Figure 3 As shown. Therefore, the rotational speed of the planetary wheel Z1 is the product of the transmission ratio between the planetary wheel Z1 and the external gear ring Z2 and the speed of the cantilever H. The rotational speed n of the planetary wheel Z1 is... Z1 for:

[0065]

[0066] in, The transmission ratio between the planetary gear Z1 and the external gear ring Z2 is given.

[0067] Since the rotating wheel Z1 uses a double-twist mechanism, with two twists per revolution, and assuming the winding roller 31's speed during rope production is v (m / min), the formula for calculating the twist T1 (twists / m) of the covered yarn C is:

[0068]

[0069] The formula for calculating the wrapping twist T2 (twist / m) of multiple covered yarns C to core yarn A is:

[0070]

[0071] The formula for calculating the twist ratio η between the sheathing wire C and the rope D is:

[0072]

[0073] In case (ii), the covered yarn enters the first yarn guide hook 29 and enters the second yarn guide hook 25 directly without passing through the doubling spindle 28 to form the second covered yarn C2. The covered yarn C3 formed in this way is not twisted and is untwisted.

[0074] In case (iii), such as Figure 6 As shown, the covered yarn 21 in the yarn storage tank 20 is divided into two parts, B1 and B2; B2 is the core yarn, which is untwisted, and B1 is the covering yarn, which is twisted; the covering yarns B1 and B2 are twisted at the second yarn guide hook 25 to form a core-wrapped covered yarn C3.

[0075] Specifically, the covering yarn B2 in part of the covered yarn package 21 is led directly to the second yarn guide hook 25 through the first yarn guide hook 29 without passing through the doubling spindle 28. This part of the covering yarn B2, as the core yarn, is untwisted and belongs to untwisted yarn. The covering yarn B1 in part of the covered yarn package 21 enters the second yarn guide hook 25 through the yarn guide tube 26 and the doubling spindle 28. This part of the covering yarn B1 completes the first twisting in the center tube 22 of the doubling spindle to form a ply. The covering yarn B1 is led out through the transverse side hole of the doubling spindle disc and enters the second yarn guide hook. The two types of covering yarns B1 and B2 converge at the second yarn guide hook 25. The covering yarn B1 rotates with the doubling spindle 28, while the covering yarn B2 does not rotate, forming the covering yarn B1 covering the covering yarn B2, which is called the first covering, completing the core-spun structure covered yarn C3.

[0076] The covered yarn B1 undergoes two twisting processes. The first twisting is performed by the covered yarn B1 itself twisting as the doubling spindle 28 rotates to form a ply. The second twisting is performed by the covered yarn B1 wrapping and twisting the covered yarn B2 as the doubling spindle 28 rotates to form a core-spun structure. The twist magnitude and direction of the two twisting processes are the same.

[0077] Let the speed of motor M1 be n (r / min), and the speed of cantilever H be n H The calculation formula is:

[0078]

[0079] Where d1 represents the diameter of the motor pulley (mm) and d2 represents the diameter of the hollow spindle main pulley (mm).

[0080] Since the external gear ring Z2 is fixed, the planetary wheel Z1 is driven by the cantilever H, and the rotation direction of the planetary wheel Z1 is opposite to the rotation direction of the cantilever H, see... Figure 3 As shown. Therefore, the rotational speed of the planetary wheel Z1 is the product of the transmission ratio between the planetary wheel Z1 and the external gear ring Z2 and the speed of the cantilever H. The rotational speed n of the planetary wheel Z1 is... Z1 for:

[0081]

[0082] in, The transmission ratio between the planetary gear Z1 and the external gear ring Z2 is given.

[0083] The covered yarn B1 passes through the doubling twisting mechanism. After the first twisting is completed at the center tube of the doubling twisting mechanism, it is twisted a second time with the covered yarn B2 to form the covered yarn C3.

[0084] Twist T of the first twist of the covered yarn B1 11 (twist / m), the calculation formula is:

[0085]

[0086] The twist T of the second wrapping and twisting of the covered yarn B1 12 (twist / m), the calculation formula is:

[0087]

[0088] The formula for calculating the wrapping twist T2 (twist / m) of multiple covered yarns C to core yarn A is:

[0089]

[0090] Considering the complex structure of the covered yarn C3, involving both the twisting of the covered yarn B1 itself and the wrapping twisting of the covered yarn B1 onto the covered yarn B2, the twist ratio η between the covered yarn C3 and the cable D can only be the ratio of the twist of the covered yarn B1 wrapping twisting onto the covered yarn B2 to the twist of the cable D. The calculation formula is as follows:

[0091]

[0092] In summary, this invention can produce three different structures of covered yarns C1, C2, and C3 by adjusting simple components. By using one or more of these three covered yarns and then wrapping and twisting the core yarn A, various rope structures D can be formed to meet the usage requirements under different working conditions.

[0093] In this invention, the twist T1 of the coated thread C and the twist T2 of the rope D can be changed by adjusting parameters such as the diameters (d1, d2) of the motor pulley and the hollow spindle main shaft pulley, the number of teeth (Z1, Z2) of the rotary wheel and the outer gear ring, the speed n of the motor M1, and the speed v of the winding roller. The twist ratio between the coated thread C and the rope D can also be adjusted to achieve integrated production of two twisting processes. The structure is simple, the production efficiency is high, the twist adjustment range is wide, the process adjustment is convenient, and the product adaptability is strong.

[0094] This invention primarily utilizes a rotating wheel system comprised of a cantilever H, hollow spindle, rotating wheel, and external gear ring to complete the transmission system for multiple twisting mechanisms. A magnetic ring for fixing the yarn storage bin and a yarn guide hook above the twisting mechanism are designed using the hollow spindle, constructing a system of multiple twisting mechanisms. Through the design of the hollow spindle and multiple twisting systems, the integrated fusion of multiple twisting mechanisms is achieved, constructing a rope and cable production system. This invention realizes a multi-twist system with multiple twists per spindle rotation. This multi-twist system has a simple structure, strong practical value, and is of great significance for the production of strands and ropes.

[0095] In this invention, the cantilevered multi-twist mechanism 2 is the core technology. The magnetic ring that fixes the yarn storage tank of the covered yarn and the yarn guide hook of the covered yarn rotate synchronously with the cantilever, maintaining a stable positional relationship with the position of the yarn storage tank of the covered yarn. This ensures that each twisting mechanism can achieve double twisting. This positional relationship is crucial to the realization of the multi-twist function. Together with the rotary wheel transmission system, it forms the twisting and covering structure of this invention, and none of them can be omitted.

[0096] The rope produced by this invention has a two-layer structure. The inner layer uses core yarn, and the outer layer uses a multi-coating thread structure. Each coating thread is made by twisting multiple yarns together, and these multiple coating threads wrap around the surface of the core yarn. In the rope, the core yarn does not rotate with the twisting of the coating threads; their movements are independent, ensuring that the core yarn is wrapped around the center of the rope. Generally, the core yarn has a higher linear density and rigidity, while the coating thread has a lower linear density and rigidity, which facilitates the wrapping of the core yarn by the coating thread, resulting in a more stable rope structure. This invention uses a planetary gear train, which, compared to a planetary gear train, can achieve a larger transmission ratio and can form a rope structure where the core yarn does not rotate but the coating threads do. In terms of design principle, a secondary twisting is designed, using a cantilever for transmission. The planetary wheel mounted on the cantilever rotates with the rotation of the cantilever, forming a revolution. The planetary wheel meshes with an external gear ring, causing the planetary wheel on the cantilever to rotate on its own axis, thus forming a combination of rotation and revolution. Meanwhile, because the twisting spindle on the rotating wheel generates a large centrifugal force when it revolves, affecting the stability of the equipment and causing wear on the structure, the external gear ring meshes with the rotating wheel. This external gear ring provides support, preventing the twisting spindle from bearing large shear stress at the cantilever, thus further improving the rotational stability of the twisting spindle and reducing equipment wear. Furthermore, this invention employs a hollow design for the cantilevered hollow spindle, and utilizes the hollow spindle to set up a yarn guide hook at the top of the twisting spindle and a magnetic ring to fix the yarn barrel, forming a double twisting process with one rotation. The twisting spindle completes the twisting of the core yarn by the covering yarn during its revolution. With one rotation and one twist, and utilizing the transmission ratio design between the cantilever and the twisting spindle, the high-efficiency twisting effect can be achieved through two twisting operations.

Claims

1. A cantilevered multi-twist spinning device, characterized in that, It includes a hollow spindle (23), a cantilever H on the hollow spindle (23), and a rotating wheel Z1 on the cantilever H. The rotating wheel Z1 meshes with an external gear ring Z2 fixed on the frame. When the hollow spindle (23) rotates, the rotating wheel Z1 revolves around the hollow spindle (23) and rotates on its own axis. The rotating wheel Z1 is provided with a covering yarn twisting mechanism, which is used to twist several covering yarns B in the covering yarn twisting mechanism together to form a covering thread C as the rotating wheel Z1 rotates. The covering thread C completes the twisting and covering of the core yarn A passing through the hollow shaft of the hollow spindle to form a rope D as the rotating wheel Z1 revolves. The covered yarn twisting mechanism includes a doubling spindle (28), a doubling spindle center tube (22), a yarn storage tank (20), and a second yarn guide hook (25). The doubling spindle (28) is mounted on a rotary wheel Z1 and rotates coaxially with the rotary wheel Z1. The yarn storage tank (20) is mounted on the doubling spindle, and the doubling spindle center tube (22) passes through the yarn storage tank (20) and is fixed on the doubling spindle. The second yarn guide hook (25) is mounted on a hollow spindle (23). The doubling spindle center tube (22) is provided with a yarn guide tube (26) and / or a first yarn guide hook (29). The yarn guide tube (26) and the first yarn guide hook (29) are detachably connected to the doubling spindle center tube (22). The yarn storage bin (20) is kept relatively fixed to the hollow spindle (23) by a magnetic ring (27); a number of covered yarns (21) are provided in the yarn storage bin (20), and a corresponding number of yarn guide tubes (26) and / or first yarn guide hooks (29) are provided on the center tube (22) of the double twist spindle; when the center tube (22) of the double twist spindle is provided with the same number of yarn guide tubes (26) as the covered yarns (21), the covered yarns of all the covered yarns (21) in the yarn storage bin (20) are led out to the second yarn guide hook (25) through the yarn guide tubes (26), the center tube (22) of the double twist spindle, and the double twist spindle (28), and twisted at the second yarn guide hook (25) to form the first covered yarn C1; When the center tube (22) of the double twist spindle is equipped with the same number of first yarn guide hooks (29) as the number of covered yarns (21), the covered yarns of all the covered yarns (21) in the yarn storage tank (20) are directly led out to the second yarn guide hook (25) through the first yarn guide hook (29), and a second covered line C2 is formed at the second yarn guide hook (25). The second covered line C2 is a combined yarn of multiple covered yarns B, without twist. When the center tube (22) of the doubling spindle is equipped with the same number of guide tubes (26) and first guide hooks (29) as the covered yarn (21), the covered yarn of part of the covered yarn (21) in the yarn storage tank (20) is directly led out to the second guide hook (25) as the core yarn through the first guide hook (29); the covered yarn of part of the covered yarn (21) is led out to the second guide hook (25) as the covered yarn through the guide tube (26), the center tube (22) of the doubling spindle, and the doubling spindle (28). The third covered yarn C3 is formed by twisting and covering at the second guide hook (25). The third covered yarn is a core-wrapped structure.

2. The cantilevered multi-twist spinning device according to claim 1, characterized in that, The hollow spindle (23) is provided with a yarn guide hole (24) for allowing the covering yarn C to enter the hollow spindle (23) and twist and cover the core yarn A passing through the hollow shaft of the hollow spindle to form a rope D.

3. The cantilevered multi-twist spinning device according to any one of claims 1-2, characterized in that, The cantilever H is provided in several forms, and the cantilever is distributed in a radial pattern around the hollow ingot (23).

4. A spinning method for a cantilevered multi-twist spinning device according to any one of claims 1-3, characterized in that, Includes the following steps: (a) Start the cantilevered multi-twist spinning device and the core yarn A enters the hollow spindle (23). (b) The hollow spindle (23) rotates, which drives the cantilever H on the hollow spindle (23) and the rotating wheel Z1 on the cantilever H to rotate synchronously. The rotating wheel Z1 meshes with the external gear ring Z2 on the frame and rotates to form the rotation of the rotating wheel Z1, which causes multiple covered yarns B in the covered yarn twisting mechanism to be twisted together to form covered yarn C. (c) Several covering threads C enter the hollow spindle (23) through the yarn guide hole (24) on the side of the hollow spindle (23). As the rotating wheel Z1 revolves, several covering threads C twist and cover the core yarn A in the hollow spindle (23) to form a rope D.

5. The spinning method of the cantilevered multi-twist spinning device according to claim 4, characterized in that, The multiple covering yarns B in the covering yarn twisting mechanism are twisted together to form the covering yarn C in the following three ways: (i) The center tube (22) of the doubling spindle is provided with the same number of guide tubes (26) as the covered yarn (21). The covered yarn of all the covered yarn (21) in the yarn storage tank (20) is led out through the guide tubes (26), the center tube (22) of the doubling spindle, and the doubling spindle (28) to the second guide hook (25). The yarn is twisted at the second guide hook (25) to form the first covered yarn C1. (ii) Replace all the yarn guide tubes (26) in the yarn storage tank (20) with the first yarn guide hook (29). The covering yarn of all the covered yarns (21) in the yarn storage tank (20) is directly led out to the second yarn guide hook (25) through the first yarn guide hook (29). The second covering line C2 is formed at the second yarn guide hook (25). The second covering line C2 is a combined yarn of multiple covering yarns B without twist. (iii) Replace part of the yarn guide tube (26) in the yarn storage tank (20) with the first yarn guide hook (29). The covering yarn of part of the covered yarn (21) in the yarn storage tank (20) is directly led out through the first yarn guide hook (29) to the second yarn guide hook (25) as the core yarn. The covering yarn of part of the covered yarn (21) is led out through the yarn guide tube (26), the center tube (22) of the double twist spindle, and the double twist spindle (28) to the second yarn guide hook (25) as the covering yarn. The third covering line C3 is formed by twisting and covering at the second yarn guide hook (25). The third covering line is a core-wrapped structure.

6. The spinning method of the cantilevered multi-twist spinning device according to claim 5, characterized in that, Several covering lines C are formed in the hollow spindle (23) to twist and cover the core yarn A to form the rope D. These covering lines are one or more combinations of the first covering line C1, the second covering line C2, and the third covering line C3.

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