A twist adjustment device for long fiber double twisting machine

Abstract

The present application relates to a twist adjustment device for a long-fiber two-for-one twisting machine, and relates to the field of two-for-one twisting devices, which includes a mounting plate, three primary twisting spindles, a secondary twisting spindle, a driving assembly, a transmission belt, a first position adjustment assembly, and a second position adjustment assembly, wherein the primary twisting spindle includes a primary twisting transmission shaft, which is rotatably connected to the mounting plate, and the primary twisting transmission shaft is provided with a second fixed conical wheel and a second movable conical wheel, and the second position adjustment assembly is used to adjust the axial distance between the second movable conical wheel and the second fixed conical wheel; the secondary twisting spindle includes a hollow tubular secondary twisting transmission shaft, which is rotatably connected to the center position of the mounting plate, and the driving assembly is used to drive the secondary twisting transmission shaft to rotate, and the first position adjustment assembly is used to adjust the axial distance between the first movable conical wheel and the first fixed conical wheel; the transmission belt bypasses the primary twisting transmission shaft and the secondary twisting transmission shaft. The present application can steplessly adjust the twist ratio of primary twisting and secondary twisting.

Description

Technical Field

[0001] The present application relates to the field of two-for-one twisting devices, and in particular to a twist adjustment device for a long fiber two-for-one twisting machine. Background Art

[0002] In the textile industry, long-fiber yarns generally need to go through primary twisting and re-twisting of multiple yarns before they can become usable finished yarns.

[0003] Some two-for-one twisting machines can combine primary twisting and secondary twisting. For example, a Chinese patent with publication number CN201027225Y discloses a twisting spindle for a twisting machine, which includes multiple two-for-one twisting spindles and a parallel twisting spindle. After a single yarn is twisted twice by a two-for-one twisting spindle, it becomes a strand of yarn. Multiple two-for-one twisting spindles twist multiple strands of yarn, and the multiple strands of yarn pass through the parallel twisting spindle to twist into finished yarns (parallel twisting is also called secondary twisting). The parallel twisting spindle and the two-for-one twisting spindle are transmitted through an input mechanism, an intermediate transmission mechanism and an output mechanism.

[0004] However, the transmission ratio of the intermediate transmission mechanism is fixed, so that the twist ratio of the primary twist and the secondary twist remains unchanged, and its application range is relatively small. Summary of the invention

[0005] In order to adjust the twist ratio of primary twist and secondary twist, the present application provides a twist adjustment device for a long fiber two-for-one twisting machine.

[0006] The present application provides a twist adjustment device for a long fiber two-for-one twisting machine, which adopts the following technical solution:

[0007] A twist adjustment device for a long-fiber two-for-one twisting machine comprises a mounting plate, three primary-twisting spindles, a secondary-twisting spindle, a driving assembly, a first external magnetic block, a first internal magnetic block, a secondary-twisting yarn guide, a transmission belt, a first position adjustment assembly, and a second position adjustment assembly, wherein the primary-twisting spindle comprises a primary-twisting transmission shaft, which is rotatably connected to the mounting plate, the primary-twisting transmission shaft is provided with a second fixed conical wheel and a second movable conical wheel, and the second position adjustment assembly is used to adjust the axial distance between the second movable conical wheel and the second fixed conical wheel; the secondary-twisting spindle comprises a hollow tubular secondary-twisting transmission shaft, the secondary-twisting transmission shaft is rotatably connected to the center position of the mounting plate, the driving assembly is used to drive the secondary-twisting transmission shaft to rotate, and the secondary-twisting yarn guide is positioned Directly above the re-twisting spindle; the first inner magnetic block is installed on the mounting plate, the first outer magnetic block is fixed to the outer side of the mounting plate, and the first outer magnetic block is attracted to the first inner magnetic block; the re-twisting transmission shaft is provided with three conical wheel groups, the conical wheel groups include a first fixed conical wheel and a first movable conical wheel, and the first position adjustment component is used to adjust the axial distance between the first movable conical wheel and the first fixed conical wheel; the transmission belt cross-section is trapezoidal, the transmission belt bypasses the primary twisting transmission shaft and the re-twisting transmission shaft, the inclined surface of the transmission belt bypassing the primary twisting transmission shaft respectively abuts the conical surfaces of the second fixed conical wheel and the second movable conical wheel, and the inclined surface of the transmission belt bypassing the re-twisting transmission shaft respectively abuts the conical surfaces of the first fixed conical wheel and the first movable conical wheel.

[0008] By adopting the above technical scheme, the torque of the complex twisting transmission shaft will be transmitted to the primary twisting transmission shaft through the transmission belt, thereby realizing the linkage of the primary twisting spindle and the complex twisting spindle, and by setting the first position adjustment component and the second position adjustment component to adjust the axial distance between the first movable conical wheel and the first fixed conical wheel, and the axial distance between the second movable conical wheel and the second fixed conical wheel, since the cross-section of the transmission belt is trapezoidal, when the first fixed conical wheel and the first movable conical wheel approach or move away from each other, the contact radius of the transmission belt will be forced to change, thereby adjusting the contact radius between the transmission belt and the first fixed conical wheel and the first movable conical wheel, and adjusting the contact radius between the transmission belt and the second fixed conical wheel and the second movable conical wheel, thereby adjusting the transmission ratio of the primary twisting spindle and the complex twisting spindle, and then adjusting the twist ratio of the primary twist and the complex twist, so as to adapt to the twisting of yarns with different twist ratios.

[0009] Optionally, the first movable conical wheel is connected to the second twist transmission shaft for anti-rotation and axial sliding, and the outer peripheral surface of the second twist transmission shaft is provided with a thread, and the first position adjustment assembly includes two first nuts, both of which are threadedly connected to the second twist transmission shaft, and the two first nuts respectively abut against the upper surface and lower surface of the first movable conical wheel; the second movable conical wheel is connected to the first twist transmission shaft for anti-rotation and axial sliding, and the outer peripheral surface of the first twist transmission shaft is provided with a thread, and the second position adjustment assembly includes two second nuts, both of which are threadedly connected to the first twist transmission shaft, and the two second nuts respectively abut against the upper surface and lower surface of the second movable conical wheel.

[0010] By adopting the above technical solution, by rotating the two first nuts, the two first nuts move along the same axial direction, so as to drive the first movable conical wheel to move axially, so as to adjust its axial position, thereby changing the axial distance between the first movable conical wheel and the first fixed conical wheel, and then adjusting the contact radius of the transmission belt. The axial position adjustment of the second movable conical wheel is the same as above, which is more convenient, direct and stable.

[0011] Optionally, conical surfaces of the first fixed conical wheel, the first movable conical wheel, the second fixed conical wheel and the second movable conical wheel are all provided with concentric circle scales.

[0012] By adopting the above technical solution, the transmission belt is brought into contact with concentric circle scales at different positions, so that the contact radius of the transmission belt can be visually observed, thereby facilitating adjustment of the transmission ratio.

[0013] Optionally, the complex twisting spindle also includes a complex twisting spindle disk, a complex twisting disk and a complex twisting wire guide tube, the driving assembly is used to drive the complex twisting spindle disk to rotate, the complex twisting disk is fixed to the upper end of the complex twisting spindle disk, the complex twisting disk is located directly below the mounting disk, the diameter of the complex twisting disk is larger than the mounting disk, the lower end of the complex twisting transmission shaft is fixed to the complex twisting disk, the complex twisting wire guide tube is rotatably connected to the upper end of the complex twisting transmission shaft, the complex twisting wire guide tube and the mounting disk are relatively fixedly arranged, an initial twisting wire guide is provided on the upper part of the complex twisting wire guide tube, the upper port of the complex twisting wire guide tube is set as a wire drawing inlet, the complex twisting disk is horizontally penetrated by a complex twisting wire outlet, and the complex twisting wire outlet is connected to the wire drawing inlet through the inner cavity of the complex twisting transmission shaft and the inner cavity of the complex twisting wire guide tube in turn.

[0014] By adopting the above technical scheme, the yarns initially twisted by each primary twisting spindle will enter the doubling inlet through the primary twisting guide together, extend downward and pass horizontally through the secondary twisting outlet, bypass the secondary twisting and adding disk, and then extend downward to the secondary twisting guide, and complete the secondary twisting as the secondary twisting and adding disk rotates.

[0015] Optionally, the first movable conical wheel is located below the first fixed conical wheel, and the first position adjustment assembly includes a first lifting structure, a first lower magnetic block, a first upper magnetic block and a first slide tube, the first slide tube is vertically slidingly connected to the inner cavity of the complex twisting transmission shaft, the complex twisting transmission shaft is provided with a first strip hole extending along its own axial direction, a first slider is fixed on the outer circumference of the first slide tube, the first slider is slidingly connected to the first strip hole, and the first movable conical wheel is connected to the first slider; the lower end of the first slide tube extends into the complex twisting disk, the first upper magnetic block is fixed to the lower end of the first slide tube, the first lifting structure is located in the inner cavity of the complex twisting spindle disk, the first lower magnetic block is rotatably arranged at the lifting end of the first lifting structure, and there is a gap between the first lower magnetic block and the first upper magnetic block for yarn to pass through, and the first lower magnetic block generates a repulsive force on the first upper magnetic block.

[0016] By adopting the above technical scheme, the first slider and the first strip hole cooperate to realize the anti-rotation axial sliding connection between the first movable conical wheel and the re-twisting transmission shaft, and the first lifting structure is used to control the height of the first lower magnetic block to adjust the repulsive force between the first lower magnetic block and the first upper magnetic block, so as to adjust the upward movement force and upward movement distance of the first movable conical wheel, thereby adjusting the pressing force of the first movable conical wheel and the first fixed conical wheel on the inclined surface of the transmission belt, and adjusting the axial distance between the first movable conical wheel and the first fixed conical wheel.

[0017] Moreover, due to the position between the upper magnetic block and the lower magnetic block, there is no interference with the yarn, so that the twist ratio between the initial twist and the secondary twist can be adjusted during the operation of the double twister, so as to adjust the twist ratio in real time, increase the twist diversity of the yarn, or differentiate the twist of different length ranges of the yarn.

[0018] Optionally, the second movable conical wheel is located above the second fixed conical wheel, and the initial twist transmission shaft is a hollow tubular; the second position adjustment assembly includes a second lifting structure, a second lower magnetic block, a second upper magnetic block and a second slide tube, the second slide tube is vertically slidingly connected to the inner cavity of the initial twist transmission shaft, the initial twist transmission shaft is provided with a second strip hole extending along its own axial direction, the second slide tube is fixed on the outer circumferential surface of the second slide tube, the second slide block is slidingly connected to the second strip hole, and the second movable conical wheel is fixedly connected to the second slide block; the lower end of the second slide tube passes through the mounting disk, the second upper magnetic block is fixed to the lower end of the second slide tube, the second lifting structure is located below the complex twisting disk, the second lower magnetic block is rotatably arranged at the lifting end of the second lifting structure, and there is a gap between the second lower magnetic block and the second upper magnetic block for the complex twisting disk to pass through, and the second lower magnetic block generates suction on the second upper magnetic block.

[0019] By adopting the above technical scheme, the second slider and the second strip hole are cooperated to realize the non-rotating axial sliding connection between the second movable conical wheel and the primary twist transmission shaft, and the second lifting structure is used to control the height of the second lower magnetic block to adjust the suction force between the second lower magnetic block and the second upper magnetic block, so as to adjust the downward force and downward distance of the second movable conical wheel, thereby adjusting the pressing force of the second movable conical wheel and the second fixed conical wheel on the inclined surface of the transmission belt. Since the upward force and upward distance of the first movable conical wheel can also be adjusted by the repulsive force, the force of the first movable conical wheel and the second movable conical wheel can be adjusted respectively by moving the lower magnetic block, and the contact radius of the transmission belt can be adjusted according to the phase difference between the forces of the first movable conical wheel and the second movable conical wheel, thereby realizing the adjustment of the transmission ratio and the twist ratio.

[0020] Optionally, the inner circumference of each of the first movable conical wheels is provided with an axially arranged strip groove, the first slider is located in the strip groove, and the strip groove is provided with two return springs, wherein the two ends of one return spring respectively abut against the upper groove wall of the strip groove and the upper surface of the first slider, and the two ends of the other return spring respectively abut against the lower groove wall of the strip groove and the lower surface of the first slider.

[0021] By adopting the above technical solution, by providing the strip groove and the two return springs, each first movable conical wheel has the ability to move vertically elastically relative to the first slide tube, and the three first movable conical wheels have independent elastic movement ability. Therefore, the vertical sliding distance of the first movable conical wheel can be adjusted in the reverse direction by adjusting the downward movement force of the second movable conical wheel corresponding to the first movable conical wheel. For example, when the downward movement force of the second movable conical wheel increases, the contact radius of the transmission belt corresponding to the second movable conical wheel will be forced to increase, and the contact radius of the transmission belt corresponding to the first movable conical wheel will increase. As the corresponding transmission belt tension increases, the contact radius of this part of the transmission belt tends to decrease, forcing the first active conical wheel to move upward (the return spring located above is compressed) to allow the contact radius of this part of the transmission belt to become smaller. In this way, the downward movement force of the second active conical wheels of the three primary twist transmission shafts is adjusted independently, and the transmission ratio between the three primary twist transmission shafts and the secondary twist transmission shaft is also adjusted independently, so that the twist of the three primary twist yarns is inconsistent, which is suitable for the primary twist requirements of different yarn materials, thereby greatly improving the flexibility and scope of application of the twist ratio adjustment.

[0022] Optionally, the first lifting structure includes a first cylinder, a lifting spring, a guide rod, a cam and a driving motor. The first lower magnetic block is rotatably arranged at the lifting end of the first cylinder. The first cylinder slides vertically relative to the guide rod. The lifting spring is used to force the first cylinder to move downward. The cam is located below the first cylinder. The outer peripheral surface of the cam abuts against the bottom of the first cylinder. The driving motor drives the cam to rotate.

[0023] By adopting the above technical solution, the first cylinder drives the first lower magnetic block to rise and fall, thereby adjusting the size of the repulsive force, and by setting a cam and a lifting spring, the rotating cam drives the first cylinder to rise and fall intermittently and in a small range, so as to intermittently fine-tune the size of the repulsive force, and the fine-tuning of the size of the repulsive force will fine-tune the size of the pressing force of the first movable conical wheel on the transmission belt, that is, intermittently fine-tune the friction force applied by the first movable conical wheel on the transmission belt, so as to intermittently fine-tune the transmission ratio between the re-twisting transmission shaft and the primary twisting transmission shaft.

[0024] Optionally, the second position adjustment assembly includes a control motor, a battery, and a second slide tube. The second movable conical wheel is located above the second fixed conical wheel. The primary twist transmission shaft is a hollow tube. The second slide tube is vertically slidingly connected to the inner cavity of the primary twist transmission shaft. The primary twist transmission shaft is provided with a second strip hole extending along its own axial direction. A second slider is fixed to the outer circumference of the second slide tube. The second slider is slidingly connected to the second strip hole, and the second movable conical wheel is fixedly connected to the second slider. A sleeve is fixed to the lower end of the second slide tube and is located on the outside of the primary twist transmission shaft. A plurality of annular convex teeth are protruding from the outer circumference of the sleeve and are arranged axially at intervals. The control motor and the battery are both located on the mounting disk. The battery is used to power the control motor. A gear is provided at the output end of the control motor, and the gear is meshed with the annular convex teeth.

[0025] By adopting the above technical solution, the motor is controlled to drive the gear to rotate, so as to drive the sleeve to move vertically, thereby driving the axial movement of the second movable conical wheel to adjust the axial distance.

[0026] Optionally, a worm is provided at the output end of the control motor, the gear is rotatably connected to the mounting plate, a worm wheel is coaxially provided on the gear, a torsion spring is provided between the worm wheel and the gear, and the worm wheel is meshed with the worm.

[0027] By adopting the above technical solution, a worm gear is arranged to cooperate to achieve self-locking, thereby improving the position stability of the sleeve, and the torque of the worm gear is transmitted to the gear through the torsion spring, and the torsion spring will be tightened during the torque transmission process, and the pre-tightening of the torsion spring will be applied to the gear, so that the gear has a pre-tightening torque, and this torque is converted into a pre-tightening force that forces the second movable conical wheel to move downward, thereby improving the contact stability of the second movable conical wheel to the transmission belt.

[0028] In summary, the present application includes at least one of the following beneficial technical effects:

[0029] By setting a first position adjustment component and a second position adjustment component, the axial distance between the first movable conical wheel and the first fixed conical wheel, and the axial distance between the second movable conical wheel and the second fixed conical wheel are adjusted, thereby adjusting the contact radius between the transmission belt and the first fixed conical wheel and the first movable conical wheel, and adjusting the contact radius between the transmission belt and the second fixed conical wheel and the second movable conical wheel, thereby adjusting the transmission ratio of the primary twisting spindle and the secondary twisting spindle, and then adjusting the twist ratio of the primary twisting and the secondary twisting, so as to adapt to the twisting of yarns with different twist ratios;

[0030] By adjusting the magnitude of the magnetic force, the magnitude of the upward force of the first movable conical wheel and the magnitude of the downward force of the second movable conical wheel are adjusted, and according to the difference between the forces of the first movable conical wheel and the second movable conical wheel, the magnitude of the contact radius of the transmission belt is adjusted, thereby realizing the adjustment of the transmission ratio and the twist ratio, and in the case of the magnetic force adjustment, there is no interference with the yarn, so that the twist ratio between the initial twist and the secondary twist can be adjusted during the operation of the double twister, so as to adjust the twist ratio in real time, increase the twist diversity of the yarn, or differentiate the twists of different length intervals of the yarn;

[0031] The three first movable conical wheels all have independent elastic movable capabilities, so that the vertical sliding distance of the first movable conical wheel can be adjusted in the opposite direction by adjusting the downward moving force of the second movable conical wheel corresponding to the first movable conical wheel. In this way, the downward moving force of the second movable conical wheels of the three primary twist transmission shafts is adjusted independently, and the transmission ratio between the three primary twist transmission shafts and the secondary twist transmission shaft is also adjusted independently, so that the twist of the three primary twist yarns is inconsistent, which is suitable for the primary twist requirements of different yarn materials, thereby greatly improving the flexibility and application range of the twist ratio adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of Example 1.

[0033] Figure 2 It is a schematic diagram of the double twisting spindle of Example 1.

[0034] Figure 3 It is a cross-sectional view of the overall structure of Example 1.

[0035] Figure 4 yes Figure 3 A partial enlarged view of point A in the middle.

[0036] Figure 5 It is a schematic diagram of the primary twisting spindle of Example 1.

[0037] Figure 6 yes Figure 3 A partial enlarged view of point B in the middle.

[0038] Figure 7 It is a partial cross-sectional view of the second embodiment of the second twisting spindle.

[0039] Figure 8 It is a partial cross-sectional view of the primary twisting spindle of Example 2.

[0040] Fig. 9 4 is a cross-sectional view of the first movable conical wheel of Example 3.

[0041] Fig.10 It is a partial cross-sectional view of the second twisting spindle of Example 4.

[0042] Fig.11 It is a partial cross-sectional view of the primary twisting spindle of Example 5.

[0043] Fig.12 This is a cross-sectional view of the worm gear of Example 6.

[0044] Explanation of reference numerals: 1. secondary twisting spindle; 2. primary twisting spindle; 10. mounting plate; 100. yarn; 101. first inner magnetic block; 102. first outer magnetic block; 103. secondary twisting wire guide; 104. support rod; 11. secondary twisting spindle plate; 12. secondary twisting twisting disk; 121. secondary twisting wire outlet; 13. secondary twisting transmission shaft; 131. keyway; 14. secondary twisting wire guide tube; 141. doubling wire inlet; 15. primary twisting wire guide device; 16, first fixed conical wheel; 17, first movable conical wheel; 171, key block; 172, strip groove; 173, reset spring; 18, transmission belt; 20, base; 21, primary twist transmission shaft; 22, primary twist twisting disk; 221, primary twist outlet; 23, static spindle disk; 24, primary twist guide tube; 241, primary twist inlet; 25, tension ring; 26, second inner magnetic block; 27, second outer magnetic block; 2 8. second fixed conical wheel; 29. ​​second movable conical wheel; 30. balloon ring guide frame; 31. first nut; 32. first lifting structure; 321. first cylinder; 322. guide rod; 323. lifting spring; 324. cam; 325. drive motor; 33. first lower magnetic block; 34. first upper magnetic block; 35. first slide tube; 351. first slider; 352. first strip hole; 50. yarn tube; 51. second nut; 52. second lifting structure; 53. second lower magnetic block; 54. second upper magnetic block; 55. second slide tube; 551. second slider; 552. second strip hole; 553. third slider; 554. third strip hole; 56. sleeve; 561. annular convex tooth; 57. gear; 58. control motor; 581. worm; 582. worm wheel; 583. torsion spring; 588. support. DETAILED DESCRIPTION

[0045] The following is combined with Figure 1-12 This application is described in further detail. Example

[0046] Embodiment 1 discloses a twist adjustment device for a long fiber two-for-one twisting machine, such as Figure 1As shown in the figure (the dotted line in the figure is the path through which the yarn 100 passes), the twist adjustment device of the long fiber two-for-one twisting machine includes a base 20, a mounting plate 10, three primary twisting spindles 2, a secondary twisting spindle 1, a driving assembly (not shown in the figure), a first external magnetic block 102, a first internal magnetic block 101, a secondary twisting guide 103, a transmission belt 18, a first position adjustment assembly, and a second position adjustment assembly, wherein the secondary twisting spindle 1 is arranged at the center of the mounting plate 10, and the three primary twisting spindles 2 are arranged on the mounting plate 10, and the three primary twisting spindles 2 are evenly arranged around the secondary twisting spindle 1 as the center circle, and a balloon ring guide frame 30 is also fixed on the mounting plate 10, and the balloon ring guide frame 30 is arranged around the primary twisting spindle 2. The secondary twisting guide 103 is located directly above the secondary twisting spindle 1.

[0047] like Figure 2 , Figure 3 As shown, the complex twisting spindle 1 includes a complex twisting spindle disk 11, a complex twisting disk 12, a complex twisting transmission shaft 13 and a complex twisting wire guide tube 14, and the base 20 is installed on the frame of the double twisting machine. The complex twisting spindle disk 11 is located directly below the mounting disk 10, and the complex twisting spindle disk 11 is rotatably connected to the base 20. The driving component is used to drive the complex twisting spindle disk 11 to rotate, and the driving component can use gear transmission or belt transmission to transmit torque; the complex twisting disk 12 is located directly below the mounting disk 10, and the diameter of the complex twisting disk 12 is larger than the mounting disk 10. The complex twisting disk 12 is fixed to the upper end of the complex twisting spindle disk 11, and the complex twisting disk 12 is horizontally penetrated with a complex twisting wire outlet 121.

[0048] like Figure 3 As shown, the complex twisting transmission shaft 13 is a hollow tube, the lower end of the complex twisting transmission shaft 13 passes through the center position of the mounting disk 10, and the complex twisting transmission shaft 13 is rotatably arranged relative to the mounting disk 10, the lower end of the complex twisting transmission shaft 13 is fixed to the complex twisting and adding disk 12, and the inner cavity of the complex twisting transmission shaft 13 is connected to the complex twisting outlet 121 of the complex twisting and adding disk 12, the torque of the complex twisting spindle disk 11 can be transmitted to the complex twisting transmission shaft 13 through the complex twisting and adding disk 12, so as to drive the complex twisting transmission shaft 13 to rotate relative to the mounting disk 10.

[0049] like Figure 1 As shown, in order to prevent the mounting disk 10 from rotating with the re-twisting transmission shaft 13 due to friction, a first external magnetic block 102 is installed on the frame of the two-for-one twister. The first external magnetic block 102 is located on the outside of the mounting disk 10, and the first internal magnetic block 101 is installed on the mounting disk 10. There is a gap between the first external magnetic block 102 and the first internal magnetic block 101, and they are magnetically attracted to each other. The magnetic attraction force is used to keep the mounting disk 10 in a fixed and non-rotating state.

[0050] like Figure 2 , Figure 3As shown, the double-twisting wire guide tube 14 is coaxially arranged with the double-twisting transmission shaft 13, the double-twisting wire guide tube 14 is rotatably connected to the upper end of the double-twisting transmission shaft 13, and the double-twisting wire guide tube 14 is fixed to the mounting disk 10 by a support rod 104, that is, the double-twisting wire guide tube 14 is fixed relative to the mounting disk 10; the upper end of the double-twisting wire guide tube 14 is set as a doubling inlet 141, and the doubling inlet 141 is connected to the inner cavity of the double-twisting transmission shaft 13, and three primary-twisting wire guides 15 are provided on the upper part of the double-twisting wire guide tube 14, and the primary-twisting wire guides 15 are used to guide the yarn 100 initially twisted by the primary-twisting spindle 2 into the primary-twisting inlet 141.

[0051] Furthermore, in order to ensure that the yarn 100 in the multi-twisting wire guide tube 14 has a certain tension, a plurality of tension balls (not shown in the figure) may be arranged in the multi-twisting wire guide tube 14 .

[0052] like Figure 3 , Figure 4 As shown, the complex twisting transmission shaft 13 is provided with three conical wheel groups, and each conical wheel group is arranged axially at intervals, and the conical wheel group includes a first fixed conical wheel 16 and a first movable conical wheel 17. The first fixed conical wheel 16 is higher than the first movable conical wheel 17, and the conical surface of the first fixed conical wheel 16 is arranged opposite to the conical surface of the first movable conical wheel 17. The first fixed conical wheel 16 is fixedly connected to the complex twisting transmission shaft 13, and the first movable conical wheel 17 is axially slidingly connected to the complex twisting transmission shaft 13 to prevent rotation. Specifically, a vertically arranged key groove 131 is provided on the outer circumference of the complex twisting transmission shaft 13, and a key block 171 is provided on the inner circumference of the first movable conical wheel 17. The key block 171 is slidingly matched with the key groove 131, so that the torque of the complex twisting transmission shaft 13 can be transmitted to the first movable conical wheel 17, and the first movable conical wheel 17 is allowed to slide vertically relative to the complex twisting transmission shaft 13.

[0053] like Figure 4 As shown, the first position adjustment component is used to adjust the axial distance between the first movable conical wheel 17 and the first fixed conical wheel 16. Specifically, the first position adjustment component of this embodiment includes two first nuts 31. The outer peripheral surface of the multi-twist transmission shaft 13 is provided with threads. The two first nuts 31 are both threadedly connected to the multi-twist transmission shaft 13. The two first nuts 31 are respectively in contact with the upper surface and the lower surface of the first movable conical wheel 17. By rotating the two first nuts 31, the two first nuts 31 move along the same axial direction to drive the first movable conical wheel 17 to move axially to adjust its axial position, thereby changing the axial distance between the first movable conical wheel 17 and the first fixed conical wheel 16. In addition, the axial distances between the first movable conical wheel 17 and the first fixed conical wheel 16 of different conical wheel groups can be adjusted separately and can be inconsistent.

[0054] like Figure 3 , Figure 5As shown, the primary twist spindle 2 includes a primary twist transmission shaft 21, a primary twisting disk 22, a static spindle disk 23 and a primary twist wire guide tube 24. The primary twist transmission shaft 21 is a central tube. The lower end of the primary twist transmission shaft 21 is penetrated by the mounting disk 10 and is rotatably connected to the mounting disk 10. The primary twisting disk 22 is fixed to the upper end of the primary twist transmission shaft 21. The primary twisting disk 22 is horizontally penetrated by a primary twist outlet 221. The static spindle disk 23 is cup-shaped. The primary twist wire guide tube 24 is located above the static spindle disk 23. The primary twist wire guide tube 24 is connected to the static spindle The disk 23 is coaxially fixed, and the static spindle disk 23 is coaxially rotatably connected with the upper part of the primary twisting and twisting disk 22; and in order to prevent the primary twisting wire guide tube 24 from rotating with the primary twisting transmission shaft 21 due to friction, a second inner magnetic block 26 is fixed in the static spindle disk 23, and a semi-annular second outer magnetic block 27 is fixed on the mounting disk 10. There is a gap between the second outer magnetic block 27 and the second inner magnetic block 26 and they are magnetically attracted to each other. The magnetic attraction force is used to keep the static spindle disk 23 and the primary twisting wire guide tube 24 in a fixed and non-rotating state.

[0055] The upper end of the primary twist wire guide tube 24 is set as a primary twist wire inlet 241, and the primary twist wire inlet 241 is connected to the primary twist wire outlet 221. The upper end of the primary twist wire guide tube 24 is also provided with a tension ring 25.

[0056] In order to ensure that the yarn 100 in the primary twist guide tube 24 has a certain tension, a plurality of tension balls (not shown in the figure) may be provided in the primary twist guide tube 24 .

[0057] like Figure 6 As shown, the torque of the primary twist transmission shaft 21 is provided by the secondary twist transmission shaft 13. Specifically, a second fixed conical wheel 28 and a second movable conical wheel 29 are provided on the primary twist transmission shaft 21. The second fixed conical wheel 28 is lower than the second movable conical wheel 29. The conical surface of the second fixed conical wheel 28 is arranged opposite to the conical surface of the second movable conical wheel 29. The second fixed conical wheel 28 is fixedly connected to the primary twist transmission shaft 21, and the second movable conical wheel 29 is axially slidingly connected to the primary twist transmission shaft 21 to prevent rotation. Specifically, a vertically arranged key groove 131 is provided on the outer circumference of the primary twist transmission shaft 21, and a key block 171 is provided on the inner circumference of the second movable conical wheel 29. The key block 171 is slidingly matched with the key groove 131, so that the torque of the primary twist transmission shaft 21 can be transmitted to the second movable conical wheel 29, and the second movable conical wheel 29 is allowed to slide vertically relative to the primary twist transmission shaft 21.

[0058] like Figure 6As shown, the second position adjustment component is used to adjust the axial distance between the second movable conical wheel 29 and the second fixed conical wheel 28. Specifically, the second position adjustment component of this embodiment includes two second nuts 51. The outer peripheral surface of the primary twist transmission shaft 21 is provided with threads. The two second nuts 51 are both threadedly connected to the primary twist transmission shaft 21. The two second nuts 51 are respectively abutted against the upper surface and the lower surface of the second movable conical wheel 29. By rotating the two second nuts 51, the two second nuts 51 are moved along the same axial direction to drive the second movable conical wheel 29 to move axially to adjust its axial position, thereby changing the axial distance between the second movable conical wheel 29 and the second fixed conical wheel 28.

[0059] like Figure 4 , Figure 6 As shown, the cross-section of the transmission belt 18 is trapezoidal, and the transmission belt 18 passes around the primary twist transmission shaft 21 and the secondary twist transmission shaft 13. The inclined surface of the transmission belt 18 passing around the primary twist transmission shaft 21 abuts against the conical surfaces of the second fixed conical wheel 28 and the second movable conical wheel 29 respectively, and the inclined surface of the transmission belt 18 passing around the secondary twist transmission shaft 13 abuts against the conical surfaces of the first fixed conical wheel 16 and the first movable conical wheel 17 respectively, that is, the torque of the first fixed conical wheel 16 and the first movable conical wheel 17 will be transmitted to the transmission belt 18 through the abutting friction force, and then transmitted to the second fixed conical wheel 28 and the second movable conical wheel 29, thereby driving the primary twist transmission shaft 21 to rotate.

[0060] The implementation process of Example 1 is as follows: the yarn tube 50 with the raw yarn is sleeved on the outside of the primary twist guide tube 24, and the raw yarn 100 enters the inner cavity of the primary twist guide tube 24 through the tension ring 25 and the primary twist inlet 241 in turn, and extends downward through the primary twist guide tube 24 and then horizontally through the primary twist outlet 221, and then extends upward to the primary twist guide 15. Since the primary twisting disk 22 rotates relative to the primary twist guide tube 24, the raw yarn will form an air circle on the primary twist spindle 2 to complete the primary twist, and the three-ply primary twist yarn 100 will be The yarns 100 pass through the primary twist guide 15 in sequence and enter the doubling inlet 141 (completing the merging of the three primary twist yarns 100), then pass through the secondary twist guide tube 14 and the secondary twist transmission shaft 13 downward, then pass through the secondary twist outlet 121 of the secondary twisting and twisting disk 12 horizontally, and then enter the secondary twist guide 103 upward. Since the secondary twist guide tube 14 is relatively fixed to the mounting disk 10, the secondary twisting and twisting disk 12 rotates relative to the secondary twist guide tube 14, so the yarn 100 will form an air ring outside the mounting disk 10, completing the secondary twisting of the three primary twist yarns 100. Finally, the secondary twist yarn 100 passing through the secondary twist guide 103 can pass through the overfeed roller in sequence and enter the receiving barrel (not shown in the figure) to complete the receiving.

[0061] During this period, the torque of the secondary twisting transmission shaft 13 will be transmitted to the primary twisting transmission shaft 21 through the transmission belt 18, so as to realize the linkage of the primary twisting spindle 2 and the secondary twisting spindle 1. Since the cross section of the transmission belt 18 is trapezoidal, when the first fixed conical wheel 16 and the first movable conical wheel 17 are close to or away from each other, the contact radius of the transmission belt 18 will be forced to change, thereby adjusting the contact radius between the transmission belt 18 and the first fixed conical wheel 16 and the first movable conical wheel 17, and adjusting the contact radius between the transmission belt 18 and the second fixed conical wheel 28 and the second movable conical wheel 29. For example, when the first movable conical wheel 17 is close to the first fixed conical wheel 16 and the second movable conical wheel 29 is away from the second fixed conical wheel 28, the inclined surface of the transmission belt 18 cooperates with the conical surface of the conical wheel, so that the portion of the transmission belt 18 located at the first movable conical wheel 17 will move away from the axial direction of the first movable conical wheel 17, that is, the contact radius of the contact portion of the transmission belt 18 located at the first movable conical wheel 17 increases, while the contact radius between the transmission belt 18 and the second fixed conical wheel 28 and the second movable conical wheel 29 decreases, thereby reducing the transmission ratio.

[0062] The rotation speeds of the primary twist spindle 2 and the secondary twist spindle 1 affect the primary twist and the secondary twist respectively. Therefore, by adjusting the transmission ratio of the primary twist spindle 2 and the secondary twist spindle 1, the primary twist and the secondary twist and the twist ratio can be adjusted, thereby adapting to the twisting of yarns 100 with different twist ratios.

[0063] Furthermore, in the present embodiment, the first position adjustment component and the second position adjustment component can independently adjust each group of first movable conical wheels 17 and the second movable conical wheels 29 of different primary twist transmission shafts 21, and therefore, the transmission ratio between the three primary twist transmission shafts 21 and the secondary twist transmission shaft 13 can be independently adjusted, so that the twist of the three primary twist yarns 100 is inconsistent, which is suitable for the primary twist requirements of different yarn 100 materials, thereby greatly improving the flexibility and scope of application of the twist ratio adjustment.

[0064] Furthermore, in other embodiments, concentric circle scales may be provided on the conical surfaces of the first fixed conical wheel 16, the first movable conical wheel 17, the second fixed conical wheel 28, and the second movable conical wheel 29, and the transmission belt 18 may be brought into contact with the concentric circle scales at different positions to visually determine the contact radius of the transmission belt 18, thereby facilitating adjustment of the transmission ratio. Example

[0065] The difference between Example 2 and Example 1 is that Figure 7As shown, the first position adjustment component includes a first lifting structure 32, a first lower magnetic block 33, a first upper magnetic block 34 and a first sliding tube 35. The first sliding tube 35 is vertically slidably connected to the inner cavity of the complex twisting transmission shaft 13. The complex twisting transmission shaft 13 is provided with a plurality of first strip holes 352 extending along its own axial direction. The first strip holes 352 are axially spaced and arranged. A plurality of first sliding blocks 351 corresponding to the first strip holes 352 are fixed to the outer circumferential surface of the first sliding tube 35. The first sliding blocks 351 are slidably connected to the first strip holes 352, and the first sliding blocks 351 are respectively fixedly connected to the first movable conical wheels 17.

[0066] The lower end of the first sliding tube 35 extends into the inner cavity of the re-twisting and twisting disk 12 , and the first upper magnetic block 34 is fixed to the lower end of the first sliding tube 35 .

[0067] like Figure 7 As shown, the first lifting structure 32 is located in the inner cavity of the re-twisting spindle disk 11, and the first lifting structure 32 can be a first cylinder 321, the cylinder body of the first cylinder 321 is fixed to the base 20, and the first lower magnetic block 33 is rotatably arranged at the lifting end of the first cylinder 321, and the first lower magnetic block 33 extends into the inner cavity of the re-twisting twisting disk 12, and there is a gap between the first lower magnetic block 33 and the first upper magnetic block 34 for the yarn 100 to pass through, so as to avoid interference with the yarn 100, and ensure that the yarn 100 can be re-twisted normally; and the first lower magnetic block 33 generates a repulsive force on the first upper magnetic block 34. The first lower magnetic block 33 and / or the first upper magnetic block 34 can be a permanent magnet or an electromagnetic block.

[0068] By cooperating with the first slider 351 and the first strip hole 352, a rotation-preventing axial sliding connection is realized between the first movable conical wheel 17 and the re-twisting transmission shaft 13, and the height of the first lower magnetic block 33 is controlled by the first lifting structure 32 to adjust the repulsive force between the first lower magnetic block 33 and the first upper magnetic block 34, so as to adjust the upward movement force and upward movement distance of the first movable conical wheel 17, thereby adjusting the pressing force of the first movable conical wheel 17 and the first fixed conical wheel 16 on the inclined surface of the transmission belt 18, and adjusting the axial distance between the first movable conical wheel 17 and the first fixed conical wheel 16.

[0069] like Figure 8 As shown, the second position adjustment assembly includes a second lifting structure 52, a second lower magnetic block 53, a second upper magnetic block 54 and a second slide tube 55. The second slide tube 55 is vertically slidably connected to the inner cavity of the primary twist transmission shaft 21. The primary twist transmission shaft 21 is provided with a second strip hole 552 extending along its own axial direction. A second slider 551 is fixed to the outer peripheral surface of the second slide tube 55. The second slider 551 is slidably connected to the second strip hole 552, and the second movable conical wheel 29 is fixedly connected to the second slider 551.

[0070] like Figure 8As shown, the lower end of the second slide tube 55 passes through the mounting plate 10, the second upper magnetic block 54 is fixed to the lower end of the second slide tube 55, the second lifting structure 52 is located below the re-twisting twisting disk 12, the first lifting structure 32 can be a second cylinder, the cylinder body of the second cylinder is fixed to the frame of the double twister, the second lower magnetic block 53 is rotatably arranged at the lifting end of the second cylinder, and there is a gap between the second lower magnetic block 53 and the second upper magnetic block 54 for the re-twisting twisting disk 12 to pass through, so as to avoid interference with the yarn 100 and ensure that the yarn 100 can be re-twisted normally; and the second lower magnetic block 53 generates suction on the second upper magnetic block 54, and the second lower magnetic block 53 and / or the second upper magnetic block 54 can be permanent magnets or electromagnetic blocks.

[0071] The height of the second lower magnetic block 53 is controlled by the second lifting structure 52 to adjust the suction force between the second lower magnetic block 53 and the second upper magnetic block 54, so as to adjust the downward force and downward distance of the second movable conical wheel 29, thereby adjusting the pressing force of the second movable conical wheel 29 and the second fixed conical wheel 28 on the inclined surface of the transmission belt 18. Since the upward force and upward distance of the first movable conical wheel 17 can also be adjusted by the repulsive force, the force of the first movable conical wheel 17 and the second movable conical wheel 29 can be adjusted respectively by moving the lower magnetic block, and the contact radius of the transmission belt 18 can be adjusted according to the phase difference between the forces of the first movable conical wheel 17 and the second movable conical wheel 29, thereby realizing the adjustment of the transmission ratio and the twist ratio.

[0072] Compared with Example 1, this embodiment can adjust the twist ratio between the initial twist and the secondary twist during the operation of the double twister, so as to adjust the twist ratio in real time, increase the twist diversity of the yarn 100, or differentiate the twist of the yarn 100 in different length ranges. Example

[0073] The difference between the embodiment 3 and the embodiment 2 is that the first slider 351 is not directly fixedly connected to the first movable conical wheel 17. Specifically, Fig. 9 As shown, the inner circumference of each first movable conical wheel 17 is provided with an axially arranged strip groove 172, the first slider 351 is located in the strip groove 172, and the strip groove 172 is provided with two return springs 173, wherein the two ends of one return spring 173 respectively abut against the upper groove wall of the strip groove 172 and the upper surface of the first slider 351, and the two ends of the other return spring 173 respectively abut against the lower groove wall of the strip groove 172 and the lower surface of the first slider 351, so that each first movable conical wheel 17 has vertical elastic activity relative to the first slide tube 35, that is, the three first movable conical wheels 17 have independent elastic activity.

[0074] Therefore, the vertical sliding distance of the first movable conical wheel 17 can be adjusted in the opposite direction by adjusting the downward force of the second movable conical wheel 29 corresponding to the first movable conical wheel 17. For example, when the downward force of the second movable conical wheel 29 increases, the contact radius of the transmission belt 18 corresponding to the second movable conical wheel 29 will be forced to increase, while the tension of the transmission belt 18 corresponding to the first movable conical wheel 17 increases, and the contact radius of this part of the transmission belt 18 tends to become smaller, forcing the first movable conical wheel 17 to move upward (the return spring 173 located above is compressed) to allow the contact radius of this part of the transmission belt 18 to become smaller. In this way, the downward force of the second movable conical wheels 29 of the three primary twist transmission shafts 21 can be adjusted independently, and the transmission ratio between the three primary twist transmission shafts 21 and the secondary twist transmission shaft 13 is also adjusted independently, so that the twist of the three primary twist yarns 100 is inconsistent, which is suitable for the primary twist twist requirements of different yarn 100 materials, thereby greatly improving the flexibility and scope of application of the twist ratio adjustment. Example

[0075] The difference between Example 4 and Example 2 is that Fig.10 As shown, the first lifting structure 32 also includes a lifting spring 323, a guide rod 322, a cam 324 and a driving motor 325, wherein the guide rod 322 is vertically fixed on the base 20, the first cylinder 321 vertically slides relative to the guide rod 322, the two ends of the lifting spring 323 are respectively connected to the first cylinder 321 and the base 20, and the elastic force of the lifting spring 323 forces the first cylinder 321 to move downward; the driving motor 325 is installed on the base 20, and the driving motor 325 drives the cam 324 to rotate, and the cam 324 is located below the first cylinder 321, and the outer peripheral surface of the cam 324 abuts against the bottom of the first cylinder 321.

[0076] The first cylinder 321 drives the first lower magnetic block 33 to rise and fall, thereby adjusting the size of the repulsive force. By setting a cam 324 and a lifting spring 323, the rotating cam 324 drives the first cylinder 321 to rise and fall intermittently and in a small range, so as to intermittently fine-tune the size of the repulsive force. The fine-tuning of the size of the repulsive force will fine-tune the size of the pressing force of the first movable conical wheel 17 on the transmission belt 18, that is, intermittently fine-tune the friction force applied by the first movable conical wheel 17 to the transmission belt 18, so as to intermittently fine-tune the transmission ratio between the re-twisting transmission shaft 13 and the primary twisting transmission shaft 21. For example, when the friction force is low, the transmission belt 18 slips for a short time, making it impossible to transmit torque, which indirectly affects the twist size. The fine-tuning method can further improve the precision of the twist adjustment. Example

[0077] The difference between Example 5 and Example 1 is that Fig.11As shown, the second position adjustment component includes a control motor 58, a sleeve 56, a battery (not shown in the figure) and a second slide tube 55. The second slide tube 55 is vertically slidably connected to the inner cavity of the primary twist transmission shaft 21. The primary twist transmission shaft 21 is provided with a second strip hole 552 extending along its own axial direction. A second slider 551 is fixed to the outer peripheral surface of the second slide tube 55. The second slider 551 is slidably connected to the second strip hole 552, and the second movable conical wheel 29 is fixedly connected to the second slider 551.

[0078] A third slider 553 is fixed to the lower end of the second sliding tube 55, and the primary twist transmission shaft 21 is provided with a third strip hole 554 extending along its own axial direction. The third slider 553 is slidably connected to the third strip hole 554, and the sleeve 56 is slidably sleeved on the outside of the primary twist transmission shaft 21. The sleeve 56 is connected to the second sliding tube 55 through the third slider 553. The outer peripheral surface of the sleeve 56 is protruded with a plurality of annular convex teeth 561 arranged axially at intervals. The control motor 58 and the battery are both located on the mounting disk 10. The battery is used to power the control motor 58. A worm 581 is fixed to the output end of the control motor 58. The mounting disk 10 is provided with a worm wheel 582 through a support 588. The worm wheel 582 is rotatably connected to the support 588. A gear 57 is coaxially fixed to the worm wheel 582. The worm wheel 582 is meshed with the worm 581, and the gear 57 is meshed with the gear 57 and the annular convex teeth 561.

[0079] The motor 58 is controlled to drive the gear 57 to rotate, so as to drive the sleeve 56 to move vertically, thereby driving the second slide tube 55 and the second movable conical wheel 29 to move axially, so as to adjust the axial distance between the second movable conical wheel 29 and the second fixed conical wheel 28 .

[0080] The structure of the first position adjustment assembly is similar to that of the second position adjustment assembly, and the first movable conical wheel 17 is driven to move vertically by controlling the cooperation of the motor 58, the gear 57 and the sleeve 56, which will not be described in detail here. Example

[0081] The difference between Example 6 and Example 5 is that Fig.12 As shown, a torsion spring 583 is provided between the worm wheel 582 and the gear 57. When the worm wheel 582 rotates a certain angle, the torsion spring 583 accumulates elastic force, and the elastic force of the torsion spring 583 is transmitted to the gear 57, so that the worm wheel 582 and the gear 57 have the characteristic of elastic torque transmission.

[0082] In the process of the torque of the worm gear 582 being transmitted to the gear 57 through the torsion spring 583, the preload force of the torsion spring 583 will be applied to the gear 57, so that the gear 57 has a preload torque, which is converted into a preload force forcing the second movable conical wheel 29 to move downward, thereby improving the contact stability of the second movable conical wheel 29 with the transmission belt 18.

[0083] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A twist adjustment device for a long fiber two-for-one twisting machine, characterized in that: The invention comprises a mounting plate (10), three primary twisting spindles (2), a secondary twisting spindle (1), a driving assembly, a first external magnetic block (102), a first internal magnetic block (101), a secondary twisting yarn guide (103), a transmission belt (18), a first position adjustment assembly, and a second position adjustment assembly, wherein the primary twisting spindle (2) comprises a primary twisting transmission shaft (21), the primary twisting transmission shaft (21) is rotatably connected to the mounting plate (10), the primary twisting transmission shaft (21) is provided with a second fixed conical wheel (28) and a second movable conical wheel (29), and the second position adjustment assembly is used to adjust the axial distance between the second movable conical wheel (29) and the second fixed conical wheel (28); the secondary twisting spindle (1) comprises A hollow tubular re-twisting transmission shaft (13) is arranged to be rotatably connected to the center position of a mounting disk (10), a driving component is used to drive the re-twisting transmission shaft (13) to rotate, and a re-twisting yarn guide (103) is located directly above the re-twisting spindle (1); a first inner magnetic block (101) is installed on the mounting disk (10), a first outer magnetic block (102) is fixed to the outer side of the mounting disk (10), and the first outer magnetic block (102) and the first inner magnetic block (101) are attracted to each other; the re-twisting transmission shaft (13) is provided with three conical wheel groups, the conical wheel groups include a first fixed conical wheel (16) and a first movable conical wheel (17), and a first position adjustment component is used to adjust the first movable conical wheel (17). The axial distance between the first fixed conical wheel (17) and the first fixed conical wheel (16) is 400 mm / s; the cross section of the transmission belt (18) is trapezoidal; the transmission belt (18) bypasses the primary twist transmission shaft (21) and the secondary twist transmission shaft (13); the inclined surface of the transmission belt (18) bypassing the primary twist transmission shaft (21) respectively abuts against the conical surfaces of the second fixed conical wheel (28) and the second movable conical wheel (29); the two inclined surfaces of the transmission belt (18) bypassing the secondary twist transmission shaft (13) respectively abut against the conical surfaces of the first fixed conical wheel (16) and the first movable conical wheel (17); the first movable conical wheel (17) is connected to the secondary twist transmission shaft (13) in a rotationally fixed axial sliding manner; the outer circumference of the secondary twist transmission shaft (13) is provided with a The first position adjustment component comprises two first nuts (31), both of which are threadedly connected to the secondary twist transmission shaft (13), and the two first nuts (31) respectively abut against the upper surface and the lower surface of the first movable conical wheel (17); the second movable conical wheel (29) is axially slidingly connected to the primary twist transmission shaft (21) for rotation prevention, and the outer peripheral surface of the primary twist transmission shaft (21) is provided with threads, and the second position adjustment component comprises two second nuts (51), both of which are threadedly connected to the primary twist transmission shaft (21), and the two second nuts (51) respectively abut against the upper surface and the lower surface of the second movable conical wheel (29).

2. The twist adjustment device for a long fiber two-for-one twisting machine according to claim 1, characterized in that: The conical surfaces of the first fixed conical wheel (16), the first movable conical wheel (17), the second fixed conical wheel (28) and the second movable conical wheel (29) are all provided with concentric circle scales.

3. The twist adjustment device for a long fiber two-for-one twisting machine according to claim 1, characterized in that: The complex twisting spindle (1) further comprises a complex twisting spindle disc (11), a complex twisting disc (12) and a complex twisting wire guide tube (14); the driving assembly is used to drive the complex twisting spindle disc (11) to rotate; the complex twisting disc (12) is fixed to the upper end of the complex twisting spindle disc (11); the complex twisting disc (12) is located directly below the mounting disc (10); the diameter of the complex twisting disc (12) is larger than the mounting disc (10); the lower end of the complex twisting transmission shaft (13) is fixed to the complex twisting disc (12); the complex twisting wire guide tube (14) is ) is rotatably connected to the upper end of the re-twisting transmission shaft (13), the re-twisting wire guide tube (14) is fixedly arranged relative to the mounting disk (10), the upper part of the re-twisting wire guide tube (14) is provided with a primary twisting wire guide (15), the upper end of the re-twisting wire guide tube (14) is set as a wire drawing inlet (141), the re-twisting twisting disk (12) is horizontally penetrated by a re-twisting wire outlet (121), and the re-twisting wire outlet (121) is connected to the wire drawing inlet (141) through the inner cavity of the re-twisting transmission shaft (13) and the inner cavity of the re-twisting wire guide tube (14) in sequence.

4. The twist adjustment device for a long fiber two-for-one twisting machine according to claim 3, characterized in that: The first movable conical wheel (17) is located below the first fixed conical wheel (16); the first position adjustment assembly comprises a first lifting structure (32), a first lower magnetic block (33), a first upper magnetic block (34) and a first sliding tube (35); the first sliding tube (35) is vertically slidably connected to the inner cavity of the complex twisting transmission shaft (13); the complex twisting transmission shaft (13) is provided with a first strip hole (352) extending along its own axial direction; a first sliding block (351) is fixed to the outer circumference of the first sliding tube (35); the first sliding block (351) is slidably connected to the inner cavity of the first strip hole (352) The first movable conical wheel (17) is connected to the first slider (351); the lower end of the first slide tube (35) extends into the complex twisting disk (12); the first upper magnetic block (34) is fixed to the lower end of the first slide tube (35); the first lifting structure (32) is located in the inner cavity of the complex twisting spindle disk (11); the first lower magnetic block (33) is rotatably arranged at the lifting end of the first lifting structure (32); there is a gap between the first lower magnetic block (33) and the first upper magnetic block (34) for the yarn (100) to pass through; the first lower magnetic block (33) generates a repulsive force on the first upper magnetic block (34).

5. The twist adjustment device for a long fiber two-for-one twisting machine according to claim 4, characterized in that: The second movable conical wheel (29) is located above the second fixed conical wheel (28), and the primary twist transmission shaft (21) is a hollow tube; the second position adjustment component comprises a second lifting structure (52), a second lower magnetic block (53), a second upper magnetic block (54) and a second slide tube (55); the second slide tube (55) is vertically slidably connected to the inner cavity of the primary twist transmission shaft (21); the primary twist transmission shaft (21) is provided with a second strip hole (552) extending along its own axial direction; a second slider (551) is fixed to the outer peripheral surface of the second slide tube (55); the second slider (551) and the second strip hole ( 552) is slidingly connected, the second movable conical wheel (29) is fixedly connected to the second slider (551); the lower end of the second slide tube (55) passes through the mounting plate (10), the second upper magnetic block (54) is fixed to the lower end of the second slide tube (55), the second lifting structure (52) is located below the re-twisting and twisting disk (12), the second lower magnetic block (53) is rotatably arranged at the lifting end of the second lifting structure (52), there is a gap between the second lower magnetic block (53) and the second upper magnetic block (54) for the re-twisting and twisting disk (12) to pass through, and the second lower magnetic block (53) generates suction on the second upper magnetic block (54).

6. The twist adjustment device for a long fiber two-for-one twisting machine according to claim 4 or 5, characterized in that: The inner circumference of each of the first movable conical wheels (17) is provided with an axially arranged strip groove (172), the first slider (351) is located in the strip groove (172), and the strip groove (172) is provided with two return springs (173), wherein the two ends of one return spring (173) respectively abut against the upper groove wall of the strip groove (172) and the upper surface of the first slider (351), and the two ends of the other return spring (173) respectively abut against the lower groove wall of the strip groove (172) and the lower surface of the first slider (351).

7. The twist adjustment device for a long fiber two-for-one twisting machine according to claim 4 or 5, characterized in that: The first lifting structure (32) comprises a first cylinder (321), a lifting spring (323), a guide rod (322), a cam (324) and a driving motor (325); the first lower magnetic block (33) is rotatably arranged at the lifting end of the first cylinder (321); the first cylinder (321) slides vertically relative to the guide rod (322); the lifting spring (323) is used to force the first cylinder (321) to move downward; the cam (324) is located below the first cylinder (321); the outer peripheral surface of the cam (324) abuts against the bottom of the first cylinder (321); and the driving motor (325) drives the cam (324) to rotate.

8. The twist adjustment device for a long fiber two-for-one twisting machine according to claim 1, characterized in that: The second position adjustment component comprises a control motor (58), a battery, and a second slide tube (55); the second movable conical wheel (29) is located above the second fixed conical wheel (28); the primary twist transmission shaft (21) is in the shape of a hollow tube; the second slide tube (55) is vertically slidably connected to the inner cavity of the primary twist transmission shaft (21); the primary twist transmission shaft (21) is provided with a second strip hole (552) extending along its own axial direction; a second slider (551) is fixed to the outer circumference of the second slide tube (55); the second slider (551) and the second strip hole ( 552) is slidably connected, and the second movable conical wheel (29) is fixedly connected to the second slider (551); a sleeve (56) located outside the primary twist transmission shaft (21) is fixed at the lower end of the second slide tube (55), and the outer peripheral surface of the sleeve (56) is protruding with a plurality of axially spaced annular convex teeth (561), the control motor (58) and the battery are both located on the mounting plate (10), the battery is used to power the control motor (58), and a gear (57) is provided at the output end of the control motor (58), and the gear (57) is meshed with the annular convex teeth (561).

9. The twist adjustment device for a long fiber two-for-one twisting machine according to claim 8, characterized in that: The output end of the control motor (58) is provided with a worm (581), the gear (57) is rotatably connected to the mounting plate (10), the gear (57) is coaxially provided with a worm wheel (582), a torsion spring (583) is provided between the worm wheel (582) and the gear (57), and the worm wheel (582) is meshed with the worm (581).

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