Tension self-adjusting multi-strand twisting machine spindle and twisting method thereof

Abstract

The invention relates to the technical field of spindles, in particular to a tension self-adjusting multi-strand twisting machine spindle and a twisting method thereof.The tension self-adjusting multi-strand twisting machine spindle comprises a spindle blade, an upper plate and a spindle mounting plate are rotationally connected to the upper side and the lower side of the spindle blade respectively, a tangential belt wheel is arranged at the bottom of the spindle blade, and fixing rods are fixedly connected to the two sides of the upper plate; the ends of the two fixing rods are jointly connected with a cut-off cylinder, a cut-off mechanism is arranged in the cut-off cylinder, through the arrangement of the cut-off mechanism, before a silk thread penetrates through the spindle blade, the cut-off cylinder can treat the silk thread in advance, and if the silk thread is knotted, a cutter in the cut-off cylinder can automatically cut off the knotted silk thread, so that the knotted silk thread is prevented from being knotted. The knotted silk yarn is cut off in time, the phenomenon that the knotted silk yarn enters the spindle blade to be wound and broken subsequently can be effectively avoided, and when the cutter cuts off the silk yarn, the merging piece and the pressing protruding block can clamp the cut-off silk yarn head, subsequent silk yarn re-jointing is facilitated, and the yarn twisting efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of spindles, in particular to a multi-strand twisting machine spindle with self-regulating tension and a twisting method thereof. Background Art

[0002] The multi-strand twisting machine is a kind of textile machinery equipment, whose main function is to twist multiple spun yarns or fibers into one thread. The twisted thread products can be used for weaving and knitting, and are suitable for twisting and plying projects of various materials such as cotton yarn, cotton, and glass fiber.

[0003] The spindle is usually composed of a spindle rod, a dragon belt wheel and other mechanisms. When a multi-strand twisting machine is in use, the spindle is usually used for twisting. When the spindle is twisting, the silk thread will first pass through the hollow spindle rod, but the existing spindle rod lacks relevant processing mechanisms for the silk thread. Before the silk thread enters the spindle rod, if the guide mechanism fails, it may cause the silk thread to be knotted before passing through the spindle rod. If the knotted silk thread is not cut off, the knotted silk thread will not be able to run in the spindle rod due to uneven silk thread tension, and finally get entangled in the spindle rod, affecting the twisting efficiency of the spindle. Although the existing twisting machine is usually equipped with a tension regulating mechanism However, affected by the structural setting of the twisting machine, the tension adjustment mechanism inside the twisting machine is usually far away from the spindle rod. Affected by the tension adjustment range, the tension adjustment mechanism inside the twisting machine may not be able to accurately adjust the tension of the silk thread inside the spindle rod according to the rotation speed of the spindle rod. In particular, when the spindle rod rotates at a high speed, once the tension of the silk thread passing through the inside of the spindle rod is insufficient, the stability of the silk thread will decrease. When the silk thread contacts the inside of the high-speed rotating spindle rod, the friction generated by the contact between the two will cause the silk thread to shake. Once the silk thread shakes too much, it may cause the silk thread to be entangled or even broken, affecting the twisting effect. Summary of the invention

[0004] The purpose of the present invention is to provide a multi-strand twisting machine spindle with self-adjusting tension and a twisting method thereof, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a tension self-adjusting multi-strand twisting machine spindle and a twisting method thereof, comprising a spindle rod, the upper and lower sides of the spindle rod are rotatably connected to an upper plate and a spindle mounting plate respectively, a dragon belt pulley is arranged at the bottom of the spindle rod, both sides of the upper plate are fixedly connected to fixing rods, the ends of the two fixing rods are commonly connected to a cutting cylinder, and a cutting mechanism is arranged inside the cutting cylinder; The cutting mechanism includes two limit rods arranged inside the cutting cylinder, and a pressure plate is slidably connected to the outer side walls of the two limit rods. A downward pressure spring is sleeved on the outer side walls of the two limit rods, and the downward pressure spring is in contact with the outer wall of the pressure plate. A threading hole is opened on the pressure plate, and sliding grooves are opened on both sides of the threading hole. The inner side wall of the sliding groove is slidably connected to the cutter.

[0006] Preferably, a tension spring is provided on the inner side wall of the sliding groove, the other end of the tension spring is fixedly connected to the cutter, a boss is fixedly connected to the outer side wall of the cutter, and a plug hole is provided inside the boss.

[0007] Preferably, a side rod is fixedly connected to the inside of the cutting cylinder, and a plug-in protrusion is slidably connected to the end of the side rod. A telescopic spring is provided at one end of the plug-in protrusion away from the boss, and the other end of the telescopic spring is fixedly connected to the inner wall of the side rod.

[0008] Preferably, a pull rod is provided at the tail of the cutter, a side groove corresponding to the pull rod is formed on the side wall of the cutting cylinder, a pull ring is provided on the end of the pull rod, a driving rod is fixedly connected to the bottom of the cutter, a bottom groove corresponding to the driving rod is formed on the pressure plate, a pressing protrusion is formed on the outer wall of the driving rod, a pressing sensor is provided inside the pressing protrusion, a merging piece is provided at the bottom of the pressure plate, a plurality of inner grooves are formed on the merging piece, the merging piece is located directly to the side of the pressing protrusion, a bottom cylinder is provided at the bottom of the cutting cylinder, and a tension adjustment mechanism is provided inside the bottom cylinder.

[0009] Preferably, the tension adjustment mechanism includes top grooves opened on both sides of the bottom tube, the inner side wall of the top groove is slidably connected with an upper rack, the outer side wall of the upper rack is fixedly connected with a tension spring, the end of the tension spring away from the upper rack is fixedly connected to the inner side wall of the top groove, the bottom of the bottom tube is fixedly connected with a connecting piece, the connecting piece is rotatably connected with a gear, and the gear is meshed with the upper rack.

[0010] Preferably, an inner contact piece is provided at the end of the upper rack, and push rods are slidably provided on both sides of the inner contact piece. A pressing spring is sleeved on the outer wall of the push rod, and an arc piece is provided at the end of the push rod away from the inner contact piece. Grooves are provided on both sides of the bottom of the bottom tube, and a lower rack is slidably connected to the inner side wall of the groove. The lower rack is meshed with a gear, and a pushing swing arm is provided at the bottom of the lower rack, and a magnetic ring is provided on the pushing swing arm.

[0011] Preferably, a rotating wheel is provided on the top of the ingot rod, and a plurality of limiting grooves are opened on the rotating wheel. The inner walls of the plurality of limiting grooves are slidably connected with trigger magnetic blocks, and the magnetic poles of the trigger magnetic blocks are the same as the magnetic poles of the magnetic ring. A pressure spring is provided on the outer wall of the trigger magnetic block, and the other end of the pressure spring is fixedly connected to the inner wall of the limiting groove.

[0012] A tension self-adjusting multi-strand twisting machine spindle and a twisting method thereof, the twisting method comprising the following steps; S1, when in use, the operator can first pass the silk thread on the wire supply drum through the threading hole in the cutting drum, and then extend it out from the bottom of the bottom drum. Then, the operator can drive the tangential belt pulley and the spindle rod to rotate through the tangential belt sleeved on the tangential belt pulley by the external driving device; S2, when the silk thread passes through the cutting cylinder, the cutting cylinder will automatically cut off the knot of the silk thread; S3, when the silk thread passes through the spindle rod, the tension of the silk thread will be adjusted; S4, after the silk thread passes through the spindle rod normally, the silk thread will be twisted twice as the spindle rod rotates, thus completing the twisting process.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. Through the setting of the cutting structure, the cutting cylinder will process the silk thread in advance before the silk thread passes through the spindle rod. If the silk thread is tangled, the cutter in the cutting cylinder will automatically cut the knotted silk thread. By cutting the knotted silk thread in time, it can effectively avoid the subsequent entanglement and breakage of the knotted silk thread after entering the spindle rod. When the cutter cuts the silk thread, the merging piece and the pressing protrusion will also clamp the cut silk thread head, which is convenient for the subsequent re-connection of the silk thread and improves the twisting efficiency.

[0014] 2. Through the setting of the tension adjustment mechanism, when the silk thread passes through the spindle rod, the tension adjustment mechanism will exert resistance on the silk thread, so that the silk thread can be straightened in the spindle rod, so as to adjust the tension. The entire tension adjustment mechanism can adaptively change with the rotation speed of the spindle rod, so as to meet the silk thread tension requirements at different rotation speeds of the spindle rod and improve the use effect of the entire spindle. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the local structure of the present invention Figure 1 ; Figure 3 The internal structure of the cutting cylinder of the present invention is shown in FIG. Figure 1 ; Figure 4 The internal structure of the cutting cylinder of the present invention is shown in FIG. Figure 2 ; Figure 5 The internal structure of the cutting cylinder of the present invention is shown in FIG. Figure 3 ; Figure 6 for Figure 5 A magnified view of middle; Figure 7 The internal structure of the cutting cylinder of the present invention is shown in FIG. Figure 4 ; Figure 8 The bottom structure of the pressure plate of the present invention is shown in FIG. Figure 1 ; Fig. 9 The bottom structure of the pressure plate of the present invention is shown in FIG. Figure 2 ; Fig.10 It is a schematic diagram of the local structure of the present invention Figure 2 ; Fig.11 for Fig.10 Enlarged view of middle B; Fig.12 It is a schematic diagram of the bottom structure of the bottom tube of the present invention.

[0016] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Spindle rod; 2. Spindle mounting plate; 3. Dragon belt pulley; 4. Upper plate; 5. Fixed rod; 6. Cutting cylinder; 7. Bottom cylinder; 8. Rotating wheel; 9. Pressure plate; 10. Limit rod; 11. Downward pressure spring; 12. Threading hole; 13. Tension spring; 14. Cutter; 15. Bottom groove; 16. Boss; 17. Side rod; 18. Insertion convex block; 19. Telescopic spring; 20. Plug hole; 21. Side groove; 22. Tension spring Rod; 23, pull ring; 24, merging part; 25, inner groove; 26, driving rod; 27, pressing protrusion; 28, upper rack; 29, connecting part; 30, gear; 31, pull groove; 32, lower rack; 33, push swing arm; 34, magnetic ring; 35, pressure spring; 36, trigger magnet; 37, top groove; 38, tension spring; 39, arc part; 40, inner contact part; 41, push rod. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Example 1: Please refer to Figure 1 - Fig.11A tension self-adjusting multi-strand twisting machine spindle and a twisting method thereof, comprising a spindle rod 1, the upper and lower sides of the spindle rod 1 are rotatably connected with an upper plate 4 and a spindle mounting plate 2 respectively, a dragon belt pulley 3 is arranged at the bottom of the spindle rod 1, both sides of the upper plate 4 are fixedly connected with fixing rods 5, the ends of the two fixing rods 5 are commonly connected with a cutting cylinder 6, and a cutting mechanism is arranged inside the cutting cylinder 6; The cutting mechanism includes two limit rods 10 arranged inside the cutting cylinder 6, and the outer side walls of the two limit rods 10 are slidably connected with a pressure plate 9. The outer side walls of the two limit rods 10 are both sleeved with a downward pressure spring 11, and the downward pressure spring 11 is in contact with the outer wall of the pressure plate 9. The pressure plate 9 is provided with a threading hole 12, and sliding grooves are provided on both sides of the threading hole 12. The inner side wall of the sliding groove is slidably connected with a cutter 14.

[0019] A tension spring 13 is arranged on the inner side wall of the sliding groove, and the other end of the tension spring 13 is fixedly connected to the cutter 14 . A boss 16 is fixedly connected to the outer side wall of the cutter 14 , and a plug hole 20 is arranged inside the boss 16 .

[0020] A side rod 17 is fixedly connected to the inside of the cutting cylinder 6, and a plug-in protrusion 18 is slidably connected to the end of the side rod 17. A telescopic spring 19 is provided at one end of the plug-in protrusion 18 away from the boss 16, and the other end of the telescopic spring 19 is fixedly connected to the inner wall of the side rod 17.

[0021] A pull rod 22 is provided at the tail of the cutter 14, a side groove 21 corresponding to the pull rod 22 is provided on the side wall of the cutting cylinder 6, a pull ring 23 is provided at the end of the pull rod 22, a driving rod 26 is fixedly connected to the bottom of the cutter 14, a bottom groove 15 corresponding to the driving rod 26 is provided on the pressure plate 9, a pressing protrusion 27 is provided on the outer wall of the driving rod 26, a pressing sensor is provided inside the pressing protrusion 27, a merging piece 24 is provided at the bottom of the pressure plate 9, a plurality of inner grooves 25 are provided on the merging piece 24, and the merging piece 24 is located on the right side of the pressing protrusion 27, a bottom cylinder 7 is provided at the bottom of the cutting cylinder 6, and a tension adjustment mechanism is provided inside the bottom cylinder 7.

[0022] In this example, when in use, the operator can first pass the silk thread on the wire supply reel through the threading hole 12 in the cutting cylinder 6, and then extend it out from the bottom of the bottom cylinder 7. Then, the operator can allow the external driving device to drive the dragon belt pulley 3 and the spindle rod 1 to rotate through the dragon belt sleeved on the dragon belt pulley 3. When the spindle rod 1 rotates, the silk thread will rotate with the spindle rod 1 and get a twist. Then, the silk thread passes through the transverse hole of the wire storage disk at the lower end of the spindle rod 1 and is led to the wire guide hook above. At this time, the wire storage disk also rotates with the spindle rod 1, and the silk thread is twisted again as the transverse hole rotates to the fixed point of the wire guide hook (the above are all prior art and will not be elaborated on. The wire storage disk, wire guide hook and other components are all prior art and are not shown in the figure).

[0023] When the silk thread passes through the cutting cylinder 6, since the aperture of the threading hole 12 in the cutting cylinder 6 completely matches the wire diameter of the silk thread, when the silk thread passes through the threading hole 12, if the silk thread gets tangled, the wire diameter at the tangled part will increase relative to the aperture of the unknotted part. When the tangled part of the silk thread comes to the threading hole 12, the tangled part will not be able to pass through the threading hole 12 and will be blocked by the pressure plate 9 instead. At this time, the silk thread passing through the spindle rod 1 at the lower end will be pulled by the external winding device. Under the pulling force of the silk thread at the lower end, the tangled part of the silk thread will pull the pressure plate 9, so that it overcomes the elastic force of the downward pressure spring 11 and moves downward along the limit rod 10. When the pressure plate 9 moves downward, it will drive the boss 16 to move downward synchronously. When the boss 16 moves downward, the socket 20 will be disengaged from the plug-in protrusion 18. When in contact, without the limiting fixation of the plug-in protrusion 18, under the tension of the tension spring 13, the cutter 14 will quickly move toward the threading hole 12 to cut off the knotted part of the silk thread blocking the threading hole 12. When the cutter 14 moves toward the threading hole 12, the pressing protrusion 27 will also move synchronously through the driving rod 26. When the cutter 14 cuts the silk thread, the pressing protrusion 27 will be engaged with the multiple inner grooves 25 on the merging piece 24 to clamp and fix the normal silk thread passing through the threading hole 12, preventing the cutter 14 from cutting the silk thread and the silk thread losing the tension provided by the silk reel above and quickly retracting into the spindle rod 1. By fixing the cut silk thread head, it is convenient to reconnect the thread later and improve the twisting efficiency.

[0024] When the spindle rod 1 rotates to twist the silk thread, if the rotation speed of the spindle rod 1 is slow and stable, after the silk thread passes through the spindle rod 1, when it contacts and rubs against the inner wall of the spindle rod 1 with a lower rotation speed, the friction force generated between the two will be relatively small, so the tension requirement for the silk thread will also be relatively small. Therefore, the silk thread adjusted by the tension of the twisting machine can pass through the spindle rod 1 normally for twisting.

[0025] Example 2: Please refer to Figure 1 - Fig.12 This embodiment further explains Example 1. The tension adjustment mechanism includes top grooves 37 opened on both sides of the bottom tube 7. The inner wall of the top groove 37 is slidably connected with the upper rack 28. The outer wall of the upper rack 28 is fixedly connected with a tension spring 38. The end of the tension spring 38 away from the upper rack 28 is fixedly connected to the inner wall of the top groove 37. The bottom of the bottom tube 7 is fixedly connected with a connecting piece 29. The connecting piece 29 is rotatably connected with a gear 30, and the gear 30 is meshed with the upper rack 28.

[0026] An inner contact piece 40 is provided at the end of the upper rack 28, and push rods 41 are slidably provided on both sides of the inner contact piece 40. A pressing spring is sleeved on the outer wall of the push rod 41, and an arc piece 39 is provided at the end of the push rod 41 away from the inner contact piece 40. Grooves 31 are provided on both sides of the bottom of the bottom tube 7, and the inner wall of the groove 31 is slidably connected with a lower rack 32. The lower rack 32 is meshed with the gear 30, and a pushing swing arm 33 is provided at the bottom of the lower rack 32, and a magnetic ring 34 is provided on the pushing swing arm 33.

[0027] A rotating wheel 8 is arranged at the top of the ingot rod 1, and a plurality of limiting grooves are opened on the rotating wheel 8. The inner walls of the plurality of limiting grooves are slidably connected with trigger magnetic blocks 36. The magnetic poles of the trigger magnetic block 36 are the same as the magnetic poles of the magnetic ring 34. A pressure spring 35 is arranged on the outer wall of the trigger magnetic block 36, and the other end of the pressure spring 35 is fixedly connected to the inner wall of the limiting groove.

[0028] In the present embodiment, when the spindle rod 1 rotates rapidly to twist the silk thread, the silk thread passing through the spindle rod 1 will contact and rub against the inner wall of the spindle rod 1 with a higher rotation speed, and the friction force will increase compared with before. At this time, under the action of the larger friction force, the silk thread will shake, so the tension demand for the silk thread is relatively large at this time, and the tension adjustment mechanism of the twisting machine itself cannot provide sufficient tension for the silk thread due to the limitation of the adjustment range. In order to avoid continuous shaking of the silk thread, when the spindle rod 1 rotates rapidly, it will drive the rotating wheel 8 at its end to rotate synchronously. Under the action of the centrifugal force generated by the rapid rotation, the multiple trigger magnetic blocks 36 will overcome the elastic force of the corresponding pressure springs 35 and move a certain distance to the outside of the rotating wheel 8. When the multiple trigger magnetic blocks 36 move a certain distance to the outside of the rotating wheel 8, the multiple trigger magnetic blocks 36 will become closer to the magnetic rings 34 on both sides. Under the action of the repulsive magnetic forces of the two, the magnetic rings 34 on both sides will be pushed to move toward the outside of the bottom cylinder 7. Since the lower rack 32 and the upper rack 28 are respectively meshed with the gear 30, when the magnetic ring 34 drives the lower rack 32 to move toward the outside of the bottom cylinder 7 by pushing the swing arm 33, the upper rack 28 will move toward the inside of the bottom cylinder 7 under the action of the gear 30. When the upper rack 28 moves toward the inner side of the center of the bottom cylinder 7, it will push the arc member 39 to contact the silk thread passing through the bottom cylinder 7. When the arc member 39 contacts the silk thread, the downward resistance of the silk thread will increase. When the running resistance of the silk thread passing through the top of the spindle rod 1 increases, and the other end of the silk thread extending from the spindle rod 1, the winding tension provided by the winding device remains unchanged, the silk thread passing through the spindle rod 1 will be straightened, thereby increasing the tension of the silk thread, increasing the stability of the silk thread, and ensuring that the silk thread will not shake when the spindle rod 1 rotates rapidly.

[0029] When the twisting machine needs high-power twisting and the spindle rod 1 rotates at high speed, the rotating wheel 8 at its end will be driven to rotate synchronously. Under the action of the large centrifugal force generated by the high-speed rotation, the multiple trigger magnetic blocks 36 will overcome the elastic force of the corresponding pressure springs 35 and move to the outside of the rotating wheel 8. When the multiple trigger magnetic blocks 36 move to the outside of the rotating wheel 8, the distance between the multiple trigger magnetic blocks 36 and the magnetic rings 34 on both sides will continue to become closer. Under the action of the repulsive magnetic force between the two, the magnetic rings 34 on both sides will be pushed to continue to move toward the outside of the bottom cylinder 7. When the magnetic ring 34 drives the lower rack 32 to continue to move a long distance toward the outside of the bottom cylinder 7 by pushing the swing arm 33, under the action of the gear 30, the upper rack 28 will continue to move toward the inside of the bottom cylinder 7. When the upper rack 28 continues to move toward the center inner side of the bottom cylinder 7, The arc-wire member 39 in contact with the silk thread is pressed tightly, so that the arc-wire member 39 and the silk thread are in closer contact, and under the continuous push of the upper rack 28, the inner contact member 40 will overcome the elastic force of the pressing spring on the push rod 41 and move toward the inner side of the center of the bottom cylinder 7 until it moves to the inside of the arc-wire member 39 and contacts the silk thread passing through the bottom cylinder 7. When both the arc-wire member 39 and the inner contact member 40 are in contact with the silk thread, the downward resistance of the silk thread will continue to increase. When the downward resistance of the silk thread continues to increase, the silk thread passing through the spindle rod 1 will be stretched tighter, thereby increasing the tension of the silk thread again, and improving the stability of the silk thread again, thereby meeting the silk thread stability under high-speed rotation of the spindle rod 1. By adjusting the tension of the silk thread, the silk thread tension requirements at different rotation speeds of the spindle rod 1 can be met, thereby improving the use effect of the entire spindle.

[0030] A tension self-adjusting multi-strand twisting machine spindle and a twisting method thereof, the twisting method comprising the following steps; S1, when in use, the operator can first pass the wire on the wire supply drum through the threading hole 12 in the cutting drum 6, and then extend it from the bottom of the bottom drum 7. Then, the operator can drive the tangential belt pulley 3 and the spindle rod 1 to rotate through the tangential belt sleeved on the tangential belt pulley 3 through the external driving device; S2, when the silk thread passes through the cutting cylinder 6, the cutting cylinder 6 will automatically cut off the knot of the silk thread; S3, when the silk thread passes through the spindle rod 1, the tension of the silk thread is adjusted; S4, after the silk thread passes through the spindle rod 1 normally, the silk thread will be twisted twice as the spindle rod 1 rotates, thereby completing the twisting process.

[0031] It should be noted that when the silk thread is cut, the merging piece 24 and the pressing protrusion 27 are engaged to clamp the thread end, and the pressing sensor of the pressing protrusion 27 will also be triggered. At this time, the pressing sensor will stop the drive mechanism of the spindle and stop the spindle rod 1 from rotating.

[0032] It should be noted that after the cutter 14 cuts the silk thread, the operator can pull the pull rod 22 through the pull ring 23 to move the cutter 14 back in the direction away from the threading hole 12. In the process of the cutter 14 returning to its original position, the beveled contact end of the boss 16 will lift the plug-in protrusion 18 and let it shrink into the side rod 17 until the socket 20 moves back to below the plug-in protrusion 18. At this time, under the elastic force of the telescopic spring 19, the plug-in protrusion 18 will be reinserted into the socket 20 to fix the cutter 14 for easy use next time.

[0033] It should be noted that the elastic force of the downward pressing spring 11 is relatively small, and the strength of the thread is sufficient to support the thread to pass through the knot and pull the pressure plate 9 downward without breaking.

[0034] It should be noted that the material of the arc member 39 and the inner contact member 40 is nitrile rubber, which is often used in parts that come into contact with the wire due to its good elasticity and friction properties. This material can provide sufficient friction when in contact with the wire, and due to its softness and elasticity, it is not easy to damage the wire.

[0035] It should be noted that only the lower wire end is clamped and fixed after being cut off because of the influence of pulling force. If the lower wire end is not fixed, the lower wire end will quickly enter the spindle rod 1 and will be difficult to find. The upper wire end that is cut off is connected to the wire supply reel, and the wire supply reel releases the wire into the cutting reel 6, so the wire end is easy to find.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-tensioning multi-strand twisting machine spindle and a twisting method thereof, comprising a spindle rod (1), characterized in that: The upper and lower sides of the spindle rod (1) are rotatably connected to an upper plate (4) and a spindle mounting plate (2), respectively; a dragon pulley (3) is provided at the bottom of the spindle rod (1); both sides of the upper plate (4) are fixedly connected to fixing rods (5); the ends of the two fixing rods (5) are commonly connected to a cutting cylinder (6); a cutting mechanism is provided inside the cutting cylinder (6); The cutting mechanism comprises two limit rods (10) arranged inside the cutting cylinder (6), the outer side walls of the two limit rods (10) are slidably connected to a pressure plate (9), the outer side walls of the two limit rods (10) are sleeved with a downward pressure spring (11), the downward pressure spring (11) is in contact with the outer wall of the pressure plate (9), the pressure plate (9) is provided with a threading hole (12), both sides of the threading hole (12) are provided with sliding grooves, and the inner side wall of the sliding groove is slidably connected to a cutter (14).

2. A self-tensioning multi-strand twisting machine spindle and a twisting method thereof according to claim 1, characterized in that: A tension spring (13) is provided on the inner side wall of the sliding groove, the other end of the tension spring (13) is fixedly connected to the cutter (14), a boss (16) is fixedly connected to the outer side wall of the cutter (14), and a plug hole (20) is provided inside the boss (16).

3. A self-tensioning multi-strand twisting machine spindle and a twisting method thereof according to claim 1, characterized in that: A side rod (17) is fixedly connected to the inside of the cutting cylinder (6), and an inserting protrusion (18) is slidably connected to the end of the side rod (17). A telescopic spring (19) is provided at one end of the inserting protrusion (18) away from the boss (16), and the other end of the telescopic spring (19) is fixedly connected to the inner wall of the side rod (17).

4. A self-tensioning multi-strand twisting machine spindle and a twisting method thereof according to claim 1, characterized in that: A pull rod (22) is provided at the tail of the cutter (14), a side groove (21) corresponding to the pull rod (22) is provided on the side wall of the cutting cylinder (6), a pull ring (23) is provided at the end of the pull rod (22), a driving rod (26) is fixedly connected to the bottom of the cutter (14), a bottom groove (15) corresponding to the driving rod (26) is provided on the pressure plate (9), a pressing protrusion (27) is provided on the outer wall of the driving rod (26), a pressing sensor is provided inside the pressing protrusion (27), a merging piece (24) is provided at the bottom of the pressure plate (9), a plurality of inner grooves (25) are provided on the merging piece (24), and the merging piece (24) is located on the right side of the pressing protrusion (27), a bottom cylinder (7) is provided at the bottom of the cutting cylinder (6), and a tension adjustment mechanism is provided inside the bottom cylinder (7).

5. A self-tensioning multi-strand twisting machine spindle and a twisting method thereof according to claim 4, characterized in that: The tension adjustment mechanism comprises top grooves (37) provided on both sides of the inside of the bottom tube (7); an upper rack (28) is slidably connected to the inner side wall of the top groove (37); a tension spring (38) is fixedly connected to the outer side wall of the upper rack (28); an end of the tension spring (38) away from the upper rack (28) is fixedly connected to the inner side wall of the top groove (37); a connecting member (29) is fixedly connected to the bottom of the bottom tube (7); a gear (30) is rotatably connected to the connecting member (29); and the gear (30) is meshed with the upper rack (28).

6. A self-tensioning multi-strand twisting machine spindle and a twisting method thereof according to claim 5, characterized in that: An inner contact piece (40) is provided at the end of the upper rack (28), and push rods (41) are slidably provided on both sides of the inner contact piece (40). A pressing spring is sleeved on the outer wall of the push rod (41), and an arc piece (39) is provided at the end of the push rod (41) away from the inner contact piece (40). Grooves (31) are provided on both sides of the bottom of the bottom tube (7), and a lower rack (32) is slidably connected to the inner wall of the groove (31). The lower rack (32) is meshed with the gear (30), and a push swing arm (33) is provided at the bottom of the lower rack (32), and a magnetic ring (34) is provided on the push swing arm (33).

7. The self-tensioning multi-strand twisting machine spindle and the twisting method thereof according to claim 1 are characterized in that: A rotating wheel (8) is arranged on the top of the spindle rod (1), and a plurality of limiting grooves are formed on the rotating wheel (8). The inner side walls of the plurality of limiting grooves are slidably connected with trigger magnetic blocks (36), and the magnetic poles of the trigger magnetic blocks (36) are the same as the magnetic poles of the magnetic ring (34). A pressure spring (35) is arranged on the outer side wall of the trigger magnetic block (36), and the other end of the pressure spring (35) is fixedly connected to the inner side wall of the limiting groove.

8. A tension self-adjusting multi-strand twisting machine spindle and a twisting method thereof, using the device described in any one of claims 1 to 7, characterized in that: The yarn twisting method comprises the following steps: S1, when in use, the operator can first pass the silk thread on the silk supply drum through the threading hole (12) in the cutting drum (6), and then extend it out from the bottom of the bottom drum (7). Then, the operator can drive the tangential belt pulley (3) and the spindle rod (1) to rotate through the tangential belt sleeved on the tangential belt pulley (3); S2, when the silk thread passes through the cutting cylinder (6), the cutting cylinder (6) automatically cuts off the knotted part of the silk thread; S3, when the silk thread passes through the spindle rod (1), the tension of the silk thread is adjusted; S4, after the silk thread passes through the spindle rod (1) normally, the silk thread will be twisted twice as the spindle rod (1) rotates, thereby completing the twisting process.

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