Two-for-one twister

Abstract

The utility model relates to a two-for-one twister which comprises a machine frame, a twisting roller rotationally connected to the machine frame, an overfeeding roller and a twisting assembly. The machine frame is further connected with a thread guiding plate, the thread guiding plate is provided with a thread guiding hole, the machine frame is connected with a driving assembly, the machine frame is rotationally connected with a thread pressing roller, the machine frame is further connected with a lifting assembly, and the lifting assembly is used for driving the thread pressing roller to move in the vertical direction. The driving assembly drives the yarn guide plate to be slidably connected to the rack in the length direction of the yarn twisting roller, so that the yarn guide plate drives the yarn to move, the yarn is evenly wound around the surface of the yarn twisting roller as much as possible, and the winding amount of the yarn twisting roller is increased.

Description

Technical Field

[0001] This application relates to the field of yarn doubling and twisting equipment, and particularly to a doubling and twisting machine. Background Art

[0002] A doubling and twisting machine can twist and bond two or more single yarns into a ply yarn by twisting, and enhance the performance of the original yarn to meet the needs of customers.

[0003] Chinese Patent with the authorization announcement number CN208791839U discloses a doubling and twisting machine. It includes a doubling and twisting unit and a yarn break self-stop device. The doubling and twisting unit sequentially includes a twisting roller, a friction roller, an overfeed roller, a dropping needle, a yarn guide hook, and a yarn storage tank from top to bottom. The yarn break self-stop device includes an air inlet pipeline, a direct-acting solenoid valve, a cylinder, and a brake arm. The air inlet pipeline is connected to the direct-acting solenoid valve. The signal input end of the direct-acting solenoid valve is connected to the dropping needle, the signal output end of the direct-acting solenoid valve is connected to the cylinder, one end of the brake arm is fixedly connected to the movable end of the cylinder, and the other end of the brake arm is fixedly connected to the yarn storage tank. It solves the problem that the yarn cannot stop in time during the production process and improves the production efficiency.

[0004] In view of the above related technologies, during the winding process, the yarn is unevenly distributed on the surface of the twisting roller, thereby reducing the winding amount of the twisting roller. Utility Model Content

[0005] In order to wind the yarn evenly on the surface of the twisting roller, thereby increasing the winding amount of the twisting roller, this application provides a doubling and twisting machine.

[0006] The doubling and twisting machine provided by this application adopts the following technical solutions:

[0007] A doubling and twisting machine includes a frame, a twisting roller rotatably connected to the frame, an overfeed roller, and a twisting assembly. The frame is also connected with a wire guiding plate, and the wire guiding plate is provided with a wire guiding hole for the yarn to pass through. The overfeed roller, the wire guiding plate, and the twisting roller are sequentially spaced apart along the yarn transportation direction. The frame is connected with a driving assembly, and the driving assembly is used to drive the wire guiding plate to be slidably connected to the frame along the length direction of the twisting roller. The frame is rotatably connected with a pressing roller, the periphery of the pressing roller is in contact with the periphery of the twisting roller, and the frame is also connected with a lifting assembly, and the lifting assembly is used to drive the pressing roller to move in the vertical direction.

[0008] By adopting the above technical solution, the yarn is discharged from the yarn twisting assembly and sequentially passes through the overfeed roller, the wire guide plate, and is wound around the twisting roller. When the twisting roller winds the yarn, the driving assembly drives the wire guide plate to be slidably connected to the frame along the length direction of the twisting roller, and thus the wire guide plate drives the yarn to move, so that the yarn is wound around the surface of the twisting roller as evenly as possible. When the yarn is wound around the surface of the twisting roller, the pressing roller abuts against the circumferential side of the twisting roller, so that the yarn is pressed tightly against the surface of the twisting roller when being wound, and the situation that the yarn is loose when being wound around the surface of the twisting roller due to insufficient yarn tension is avoided as much as possible, thereby improving the winding amount of the twisting roller.

[0009] Optionally, the frame is connected with a guide rod. The length direction of the guide rod is the same as the length of the twisting roller. The overfeed roller, the guide rod, and the wire guide plate are sequentially spaced along the yarn transportation direction. The guide rod is slidably connected to the frame along its length direction. The driving assembly is used to drive the guide rod to be slidably connected to the frame along the length direction of the guide rod. The driving assembly includes a first motor, a first rod, a second rod, and a slider. The first motor is connected to the frame, and the output shaft of the first motor is connected with a disc. One end of the first rod is connected to the circumferential side of the disc. The other end of the first rod is hinged to one end of the second rod. The other end of the second rod is hinged to the slider. The frame is provided with a sliding hole. The length direction of the sliding hole is the same as the length direction of the guide rod. The top end of the slider is sleeved on the guide rod. The bottom end of the slider is slidably connected in the sliding hole along the length direction of the guide rod. A connecting block is sleeved on the guide rod, and the wire guide plate is connected to the connecting block.

[0010] By adopting the above technical solution, the first motor drives the disc to rotate. The first rod follows the disc to rotate, and the first rod drives the second rod to move. The second rod drives the slider to be slidably connected in the sliding hole along the length direction of the guide rod. The slider moves along the length direction of the guide rod, thereby driving the guide rod to be slidably connected to the frame along its length direction. The connecting block and the wire guide plate follow the guide rod to move, so that the yarn is evenly distributed on the surface of the twisting roller.

[0011] Optionally, limiting blocks are connected to both sides of the slider along the width direction of the sliding hole. Limiting grooves for the limiting blocks to be inserted are provided on both sides of the sliding hole along its width direction. The limiting blocks are slidably connected in the limiting grooves along the length direction of the guide rod.

[0012] By adopting the above technical solution, when the slider is slidably connected in the sliding hole along the length direction of the guide rod, the limiting blocks are slidably connected in the limiting grooves along the length direction of the guide rod, thereby enabling the slider to move stably in a predetermined direction.

[0013] Optionally, the lifting assembly includes a first spring and a moving block. The machine frame is provided with a lifting hole, the length direction of the lifting hole is consistent with the vertical direction, the length direction of the first spring is consistent with the vertical direction, one end of the first spring is connected to the inner wall of the lifting hole, the other end of the first spring is connected to the moving block, the moving block is slidably connected to the lifting hole in the vertical direction, the wire pressing roller is rotatably connected to the moving block, and when the twisting roller is not wound with yarn, the first spring is not deformed.

[0014] By adopting the above technical solution, when the yarn is wound around the twisting roller, causing the radius of the twisting roller to gradually increase, the twisting roller pushes the wire pressing roller to slide in the vertical direction, thereby driving the moving block to slide in the vertical direction in the lifting hole, and the first spring deforms, further driving the wire pressing roller to press against the surface of the twisting roller, so that during the process of the radius of the twisting roller gradually increasing, the wire pressing roller always presses against the yarn wound on the surface of the twisting roller.

[0015] Optionally, the bottom end of the wire guiding plate is connected to the top of the connecting block, the top end of the wire guiding plate is inclined towards the side away from the connecting block, the bottom end of the wire guiding plate is hinged to the top of the connecting block, the connecting block is connected with an adjusting assembly, and the adjusting assembly is used to change the angle between the wire guiding plate and the connecting block to adjust the yarn tension.

[0016] By adopting the above technical solution, when the yarn tension is too large, the adjusting assembly adjusts the angle between the wire guiding plate and the connecting block, so that the distance between the wire guiding hole and the twisting roller is reduced to reduce the yarn tension. When the yarn tension is too small, the adjusting assembly adjusts the angle between the wire guiding plate and the connecting block by adjusting the angle between the wire guiding plate and the connecting block, so that the distance between the wire guiding hole and the twisting roller is increased to increase the yarn tension, and tries to avoid the situation where the yarn is too large or too small.

[0017] Optionally, the adjusting assembly includes a moving rod and a second spring. The length direction of the moving rod is consistent with the vertical direction. The bottom end of the moving rod passes through the connecting block in the vertical direction. The top of the moving rod contacts the wire guiding plate. The second spring is sleeved on the moving rod. The length direction of the second spring is consistent with the vertical direction. The top end of the second spring is connected to the top end of the moving rod, and the bottom end of the second spring is connected to the top of the connecting block.

[0018] By adopting the above technical solution, when the yarn tension is too large, the yarn pushes the wire guiding plate downward, so that the distance between the wire guiding hole and the twisting roller is reduced. The wire guiding plate slides downward in the vertical direction along the pushing moving rod and is connected to the machine frame. The second spring is compressed and deformed. When the yarn tension is small, the pressure of the yarn on the wire guiding plate is reduced. The second spring resumes its shape and drives the moving rod to move upward in the vertical direction, thereby pushing the wire guiding plate to rotate, increasing the angle between the wire guiding plate and the connecting block, and increasing the distance between the wire guiding hole and the twisting roller, so that the yarn is tightened, and tries to avoid the situation where the yarn tension is too large or too small.

[0019] Optionally, a flexible layer is connected to the inner wall of the wire hole.

[0020] By adopting the above technical solution and adding a flexible layer, the friction between the yarn and the inner wall of the wire hole when the yarn passes through the wire hole can be avoided as much as possible, thereby reducing the damage to the yarn caused by the inner wall of the wire hole.

[0021] Optionally, a guide groove is provided at one end of the connecting block close to the guide rod, and the guide groove is used for allowing the yarn to pass through and guiding the yarn to the wire guide plate.

[0022] By adopting the above technical solution, the yarn enters the guide groove after passing through the overfeed roller and is guided along the guide groove to the wire hole, thereby minimizing the friction of the yarn between the connecting block and the guide rod and reducing the damage of the connecting block to the yarn.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. The yarn is discharged from the twisting assembly and passes through the overfeed roller and the guide plate in sequence, and is wound on the twisting roller. When the twisting roller winds the yarn, the driving assembly drives the guide plate to slide along the length direction of the twisting roller and connect to the frame, and thus the guide plate drives the yarn to move, so that the yarn is wound evenly on the surface of the twisting roller as much as possible, and when the yarn is wound on the surface of the twisting roller, the pressure roller abuts against the side of the twisting roller, so that the yarn is pressed against the surface of the twisting roller when the yarn is wound, and the yarn tension is insufficient, which causes the yarn to be loose when it is wound on the surface of the twisting roller, thereby increasing the winding amount of the twisting roller;

[0025] 2. The first motor drives the disc to rotate, the first rod follows the disc to rotate, and the first rod drives the second rod to move, the second rod drives the slider to slide along the length direction of the guide rod and connect to the sliding hole, the slider moves along the length direction of the guide rod, thereby driving the guide rod to slide along its length direction and connect to the frame, the connecting block and the wire guide follow the guide rod to move, so that the yarn is evenly distributed on the surface of the twisting roller;

[0026] 3. When the yarn tension is too large, the yarn pushes the wire plate downward, reducing the distance between the wire hole and the twisting roller. The wire plate slides downward in the vertical direction along the pushing moving rod connected to the frame, and the second spring is compressed and deformed. When the yarn tension is small, the pressure of the yarn on the wire plate is reduced, and the second spring restores its shape and drives the moving rod to move upward in the vertical direction, thereby pushing the wire plate to rotate, increasing the angle between the wire plate and the connecting block, and increasing the distance between the wire hole and the twisting roller, so as to make the yarn taut and try to avoid excessive or insufficient yarn tension. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional structural diagram of this embodiment.

[0028] Figure 2 is the top view of this embodiment.

[0029] Figure 3 is this embodiment Figure 2 the sectional view taken along the line A-A in this embodiment.

[0030] Figure 4 is the front view of this embodiment.

[0031] Figure 5 is this embodiment Figure 2 the sectional view taken along the line B-B in this embodiment.

[0032] Figure 6 is this embodiment Figure 3 the enlarged view of part C in this embodiment.

[0033] Description of reference numerals: 100, frame; 110, guide rod; 120, sliding hole; 121, limiting groove; 130, wire pressing roller; 140, lifting hole; 150, third motor; 200, twisting roller; 300, overfeed roller; 310, fourth motor; 400, twisting assembly; 410, cylinder; 411, positioning rod; 420, second motor; 430, spindle shaft; 431, lining ring; 500, wire guiding plate; 510, wire guiding hole; 520, flexible layer; 600, driving assembly; 610, first motor; 611, disc; 620, first rod; 630, second rod; 640, slider; 641, limiting block; 700, connecting block; 710, fixing ring; 711, guiding groove; 720, support plate; 800, adjusting assembly; 810, moving rod; 820, second spring; 900, lifting assembly; 910, first spring; 920, moving block. Detailed implementation manners

[0034] The following further describes this application in detail with reference to the accompanying Figures 1-6 drawings.

[0035] This application embodiment discloses a kind of. Refer to Figure 1 and Figure 2, A doubling twisting machine, comprising a frame 100, a twisting roller 200, an overfeed roller 300, a twisting assembly 400, and a wire guide plate 500. The overfeed roller 300 is rotatably connected to the frame 100. The length direction of the twisting roller 200 is consistent with the horizontal direction, and the twisting roller 200 is rotatably connected to the frame 100. The wire guide plate 500 is slidably connected to the frame 100 along the length direction of the twisting roller 200, and a wire hole 510 is provided at one end of the wire guide plate 500. The twisting assembly 400, the overfeed roller 300, the wire guide plate 500, and the twisting roller 200 are sequentially and spaced apart along the yarn transportation direction. The twisting assembly 400 is disposed below the overfeed roller 300, and the wire guide plate 500 and the twisting roller 200 are disposed above the overfeed roller 300. The frame 100 is connected with a driving assembly 600 for driving the wire guide plate 500 to move. When the twisting roller 200 winds the yarn, the driving assembly 600 drives the wire guide plate 500 to be slidably connected to the frame 100 along the length direction of the twisting roller 200, so that the yarn is evenly distributed on the surface of the twisting roller 200.

[0036] Referring to Figure 1 and Figure 3 , the twisting assembly 400 includes a cylinder 410, a second motor 420, and a spindle shaft 430. The cylinder 410 is rotatably connected to the frame 100, and the cylinder 410 is rotatably connected to the frame 100 and is disposed below the overfeed roller 300. The central axis of the cylinder 410 is vertically arranged. The second motor 420 is connected to the frame 100, and the output shaft of the second motor 420 is connected to the cylinder 410. The central axis of the cylinder 410 is collinear with the central axis of the output shaft of the second motor 420. A positioning rod 411 is connected inside the cylinder 410. The length direction of the positioning rod 411 is consistent with the vertical direction, and the central axis of the positioning rod 411 is collinear with the central axis of the cylinder 410. The spindle shaft 430 is sleeved on the positioning rod 411, and a lining ring 431 is sleeved on the top end of the spindle shaft 430. The spindle shaft 430 winds the yarn.

[0037] Referring to Figure 1 and Figure 2 , the frame 100 is further connected with a third motor 150. The output shaft of the third motor 150 passes through the frame 100 along the length direction of the twisting roller 200, and the output shaft of the third motor 150 is connected to one end of the twisting roller 200. The frame 100 is connected with a fourth motor 310. The output shaft of the fourth motor 310 passes through the frame 100 along the length direction of the guide rod 110, and the output shaft of the fourth motor 310 is connected to the overfeed roller 300.

[0038] Referring to Figure 1 and Figure 4, the frame 100 is connected with a guide rod 110. The length direction of the guide rod 110 is the same as the length of the twisting roller 200. Both ends of the guide rod 110 pass through and are slidably connected to the frame 100 along its length direction. The wire guiding plate 500 is connected to the guide rod 110, and the driving assembly 600 is used to drive the guide rod 110 to move along the length direction of the guide rod 110 so as to drive the wire guiding plate 500 to move. The overfeed roller 300, the guide rod 110, and the wire guiding plate 500 are sequentially arranged at intervals along the yarn transportation direction.

[0039] Referring to Figure 2 and Figure 4 , the frame 100 is provided with a sliding hole 120. The length direction of the sliding hole 120 is the same as the length direction of the guide rod 110. The driving assembly 600 includes a first motor 610, a first rod 620, a second rod 630, and a slider 640. The first motor 610 is connected to the frame 100, and the output shaft of the first motor 610 is connected with a disc 611. The central axis of the output shaft of the first motor 610 is collinear with the central axis of the disc 611. One end of the first rod 620 is fixedly connected to the circumference of the disc 611. The other end of the first rod 620 is hinged to one end of the second rod 630. The other end of the second rod 630 is hinged to the bottom end of the slider 640. The length direction of the slider 640 is the same as the vertical direction. The top end of the slider 640 is fixedly sleeved on one end of the guide rod 110. The bottom end of the slider 640 is embedded in the sliding hole 120, and the bottom end of the slider 640 is slidably connected to the sliding hole 120 along the length direction of the guide rod 110.

[0040] Referring to Figure 4 and Figure 5 , both sides of the sliding hole 120 along its width direction are provided with limiting grooves 121. The length direction of the limiting grooves 121 is the same as the length direction of the guide rod 110. Both sides of the bottom end of the slider 640 along its width direction are connected with limiting blocks 641. One limiting block 641 is embedded in one limiting groove 121, and the limiting block 641 is slidably connected to the limiting groove 121 along the length direction of the guide rod 110.

[0041] The first motor 610 drives the disc 611 to rotate, so as to drive the first rod 620 to rotate. The first rod 620 drives the second rod 630 to rotate. The second rod 630 drives the slider 640 to be slidably connected to the sliding hole 120 along the length direction of the guide rod 110, so as to drive the guide rod 110 and the wire guiding plate 500 to move along the length direction of the guide rod 110.

[0042] Referring to Figure 1 and Figure 3, a connecting block 700 is fixedly sleeved on the guide rod 110. The connecting block 700 includes a fixing ring 710 and a support plate 720. The fixing ring 710 is fixedly sleeved on the guide rod 110, and the support plate 720 is connected to one side of the fixing ring 710 close to the twisting roller 200. The length direction of the support plate 720 is the same as the width direction of the twisting roller 200, and the wire guiding plate 500 is connected to the top of the support plate 720. A guiding groove 711 is formed on the circumferential side of the fixing ring 710,

[0043] Referring to Figure 1 and Figure 3 , the guiding groove 711 is arranged as an annular groove, and the circumferential direction of the guiding groove 711 is the same as the circumferential direction of the fixing ring 710. The bottom end of the wire guiding plate 500 is hinged to the top of the connecting block 700, and the top end of the wire guiding plate 500 is inclined towards the side away from the connecting block 700, and a wire hole 510 is formed at one end of the wire guiding plate 500 away from the connecting block 700.

[0044] Referring to Figure 3 and Figure 6 , flexible layers 520 are connected to the inner walls of the wire holes 510, and the flexible layers 520 are made of rubber. The connecting block 700 is connected with an adjusting component 800. The adjusting component 800 includes a moving rod 810 and a second spring 820. The length direction of the moving rod 810 is the same as the vertical direction. The bottom end of the moving rod 810 vertically passes through and is slidably connected to the support plate 720. The top of the moving rod 810 contacts the bottom of the wire guiding plate 500. The second spring 820 is sleeved on the moving rod 810, and the length direction of the second spring 820 is the same as the vertical direction. The top end of the second spring 820 is connected to the top end of the moving rod 810, and the bottom end of the second spring 820 is connected to the top of the connecting block 700.

[0045] When the yarn tension is too large, the yarn pushes the wire guiding plate 500 to rotate downward, thereby driving the moving rod 810 to slide downward vertically on the support plate 720, causing the second spring 820 to deform, thereby reducing the distance between the wire guiding plate 500 and the twisting roller 200, and further adjusting the yarn tension. When the yarn tension is small, the second spring 820 resumes its shape and drives the moving rod 810 to move upward vertically, thereby causing the wire guiding plate 500 to rotate, changing the distance between the wire guiding plate 500 and the twisting roller 200, and further adjusting the yarn tension.

[0046] Referring to Figure 1 and Figure 3, the frame 100 is rotatably connected with a wire pressing roller 130. The wire pressing roller 130 is located directly below the twisting roller 200, and the circumferences of the wire pressing roller 130 and the twisting roller 200 are in contact with each other. The frame 100 is also connected with a lifting assembly 900, and the lifting assembly 900 is used to drive the wire pressing roller 130 to be slidably connected to the frame 100 in the vertical direction. The frame 100 is provided with a lifting hole 140, and the length direction of the lifting hole 140 is consistent with the vertical direction. The lifting assembly 900 includes a first spring 910 and a moving block 920 connected in the lifting hole 140. The wire pressing roller 130 is rotatably connected to the moving block 920. The length direction of the first spring 910 is consistent with the vertical direction. The top end of the first spring 910 is connected to the top of the moving block 920, and the bottom end of the first spring 910 is connected to the inner wall of the lifting hole 140. The moving block 920 is slidably connected to the lifting hole 140 in the vertical direction. When the twisting roller 200 is not wound with yarn, the first spring 910 is not deformed.

[0047] The implementation principle of a doubling twisting machine according to an embodiment of the present application is as follows: The yarn passes through the wire guiding hole 510 and is wound around the surface of the twisting roller 200. When the twisting roller 200 winds the yarn, the first motor 610 drives the disc 611 to rotate, thereby driving the first rod 620 to rotate. The first rod 620 drives the second rod 630 to move, and the second rod 630 drives the slider 640 to move along the length direction of the guiding rod 110. Thus, the slider 640 drives the guiding rod 110 to move, so that the connecting block 700 moves along with the guiding rod 110, and the wire guiding plate 500 moves along with the connecting block 700, so that the yarn is evenly wound around the surface of the twisting roller 200. And when the yarn tension is too large, the yarn drives the wire guiding plate 500 to rotate downward, and the wire guiding plate 500 pushes the moving rod 810 to move downward in the vertical direction, so that the second spring 820 is compressed and deformed. Thus, the distance between the wire guiding hole 510 and the twisting roller 200 is reduced. When the yarn tension is small, the second spring 820 restores its shape and pushes the moving rod 810 to move upward in the vertical direction and reset. The moving rod 810 drives the wire guiding plate 500 to rotate, thereby increasing the distance between the twisting roller 200 and the wire guiding hole 510, and further adjusting the tension of the yarn, and trying to avoid the situation that the yarn breaks due to too large tension or the winding effect of the twisting roller 200 is affected due to too small tension.

[0048] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A two-for-one twisting machine, comprising a frame (100), a twisting roller (200) rotatably connected to the frame (100), an overfeed roller (300), and a twisting assembly (400), characterized in that: The frame (100) is also connected to a guide plate (500), the guide plate (500) is provided with a guide hole (510) for yarn to pass through, the overfeed roller (300), the guide plate (500), and the twisting roller (200) are sequentially spaced along the yarn transport direction, the frame (100) is connected to a driving assembly (600), the driving assembly (600) is used to drive the guide plate (500) to slide along the length direction of the twisting roller (200) and is connected to the frame (100), the frame (100) is rotatably connected to a pressing roller (130), the circumference of the pressing roller (130) is in contact with the circumference of the twisting roller (200), and the frame (100) is also connected to a lifting assembly (900), the lifting assembly (900) is used to drive the pressing roller (130) to move along the vertical direction.

2. The two-for-one twisting machine according to claim 1, characterized in that: The frame (100) is connected to a guide rod (110), the length direction of the guide rod (110) is consistent with the length of the twisting roller (200), the overfeed roller (300), the guide rod (110), and the guide plate (500) are sequentially spaced along the yarn transport direction, the guide rod (110) is slidably connected to the frame (100) along its length direction, the drive assembly (600) is used to drive the guide rod (110) to be slidably connected to the frame (100) along the length direction of the guide rod (110), and the drive assembly (600) comprises a first motor (610), a first rod (620), a second rod (630), and a slider (640), the first motor (610) is connected to the frame (100), and the first motor (61 0) is connected to an output shaft of the guide rod (110), one end of the first rod (620) is connected to the circumference of the disc (611), the other end of the first rod (620) is hinged to one end of the second rod (630), the other end of the second rod (630) is hinged to a slider (640), the frame (100) is provided with a sliding hole (120), the length direction of the sliding hole (120) is consistent with the length direction of the guide rod (110), the top end of the slider (640) is sleeved on the guide rod (110), the bottom end of the slider (640) is slidably connected to the sliding hole (120) along the length direction of the guide rod (110), the guide rod (110) is sleeved with a connecting block (700), and the wire plate (500) is connected to the connecting block (700).

3. The two-for-one twisting machine according to claim 2, characterized in that: The sliding block (640) is connected to limit blocks (641) on both sides along the width direction of the sliding hole (120); the sliding hole (120) is provided with limit grooves (121) on both sides along the width direction for the limit blocks (641) to be inserted; the limit blocks (641) are slidably connected in the limit grooves (121) along the length direction of the guide rod (110).

4. The two-for-one twisting machine according to claim 1, characterized in that: The lifting assembly (900) comprises a first spring (910) and a moving block (920); the frame (100) is provided with a lifting hole (140); the length direction of the lifting hole (140) is consistent with the vertical direction; the length direction of the first spring (910) is consistent with the vertical direction; one end of the first spring (910) is connected to the inner wall of the lifting hole (140); the other end of the first spring (910) is connected to the moving block (920); the moving block (920) is slidably connected in the lifting hole (140) along the vertical direction; the pressing roller (130) is rotatably connected to the moving block (920); when the twisting roller (200) is not wound with yarn, the first spring (910) is not deformed.

5. The two-for-one twisting machine according to claim 2, characterized in that: The bottom end of the wire guide (500) is connected to the top of the connecting block (700); the top of the wire guide (500) is inclined toward a side away from the connecting block (700); the bottom end of the wire guide (500) is hinged to the top of the connecting block (700); the connecting block (700) is connected to an adjustment component (800); the adjustment component (800) is used to change the angle between the wire guide (500) and the connecting block (700) so as to adjust the yarn tension.

6. The two-for-one twisting machine according to claim 5, characterized in that: The adjustment component (800) comprises a moving rod (810) and a second spring (820). The length direction of the moving rod (810) is consistent with the vertical direction. The bottom end of the moving rod (810) passes through the connecting block (700) in the vertical direction. The top of the moving rod (810) contacts the wire board (500). The second spring (820) is sleeved on the moving rod (810). The length direction of the second spring (820) is consistent with the vertical direction. The top end of the second spring (820) is connected to the top end of the moving rod (810), and the bottom end of the second spring (820) is connected to the top end of the connecting block (700).

7. The two-for-one twisting machine according to claim 1, characterized in that: The inner wall of the wire hole (510) is connected to a flexible layer (520).

8. The two-for-one twisting machine according to claim 2, characterized in that: A guide groove (711) is provided at one end of the connecting block (700) close to the guide rod (110), and the guide groove (711) is used for allowing the yarn to pass through and guiding the yarn to the wire guide plate (500).

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