A false-twisting device and method for a high-speed texturing machine to improve false-twisting balance

Abstract

The present invention relates to the technical field of texturizing machines, and in particular to a false twisting device and method for a high-speed texturizing machine for improving false twist balance. The false twisting device comprises a base and a through hole arranged in the center of the base for a silk thread to pass through, three mounting frames are evenly distributed around the through hole, each mounting frame is provided with a driving shaft, and a friction disk is provided on the driving shaft. The present invention adjusts the axial angle of the driving shaft to change the angle between the axial line of the friction disk connected to the driving shaft and the axial line of the through hole, so that only one side of the upper outer edge and the lower outer edge of the friction disk contacts the silk thread. This method of switching the contact surface between the friction disk and the silk thread by adjusting the angle of the friction disk balances the wear of the friction disk, improves the stability of false twist, and at the same time prolongs the service life of the friction disk and reduces the maintenance frequency.

Description

Technical Field

[0001] The invention relates to the technical field of texturing machines, and in particular to a false twisting device and method for a high-speed texturing machine for improving false twist balance. Background Art

[0002] In the high-speed texturing process, false twisting is a key link that affects the quality of DTY (drawn textured yarn). During high-speed operation, there may be slight differences in the speed, stretching force and other factors between the transmission components, which leads to uneven false twisting of the fibers, thus affecting the twist stability, elasticity and strength of the yarn. However, the traditional texturing machine is still relatively rough in controlling the false twist balance, which is difficult to meet the production needs of high-quality yarn.

[0003] For example, Chinese patent authorization announcement number CN217149457U discloses a false twist device for a coating texturizing machine. In the prior art, three rotating shafts are usually used, and multiple friction disks are arranged axially on each rotating shaft, and the three rotating shafts are distributed in a herringbone shape. In order to ensure that the friction disks on the three rotating shafts can operate synchronously, a synchronization mechanism is generally set up. The synchronization mechanism mostly uses a synchronous belt or gear transmission to keep the three friction disks rotating in the same direction. When the fiber bundle passes through the friction disks on the three rotating shafts, the friction disks apply pressure to the fiber bundle by rotating to achieve uniform friction, thereby giving the fiber an appropriate false twist, thereby changing the internal structure of the bundle and improving the elasticity of the yarn.

[0004] However, in actual use, due to the continuous friction between the fiber bundle and the friction disk, even if the friction disk is made of wear-resistant material, it will inevitably wear out after long-term use. In order to ensure the balance of false twist, the flatness of the friction disk on the three axes is crucial. Once the surface of the friction disk is uneven due to wear, the false twist effect may deviate, thereby affecting the quality stability of the yarn and reducing the yield rate. Therefore, how to optimize the durability of the friction disk and maintain the false twist stability after long-term operation has become a key technical problem in improving the production efficiency of high-quality elastic yarn. Summary of the invention

[0005] In view of the above problems, a high-speed texturing machine false twisting device and method for improving the false twist balance are provided. The present invention adjusts the axial angle of the driving shaft to change the angle between the axis of the friction disk connected to the driving shaft and the axis of the through hole, so that only one side of the upper outer edge and the lower outer edge of the friction disk is in contact with the silk thread. This method of switching the contact surface between the friction disk and the silk thread by adjusting the angle of the friction disk balances the wear of the friction disk, improves the stability of false twist, and at the same time extends the service life of the friction disk and reduces the maintenance frequency.

[0006] To solve the problems of the prior art, the present invention provides a false twist device for a high-speed texturing machine that improves false twist uniformity, including a base and a through hole provided in the center of the base for the silk thread to pass through. Three mounting frames capable of sliding radially along the circumference of the through hole are evenly distributed on the circumference of the through hole. A drive shaft rotatably connected to each mounting frame is provided on each mounting frame, and at least one friction disk drivingly connected to the drive shaft is provided on the drive shaft. The drive shaft can rotate around its connection point with the mounting frame to change the included angle between the axis of the friction disk and the axis of the through hole. By adjusting the angle of the friction disk, the upper outer edge and the lower outer edge of the friction disk can respectively perform false twist operations on the silk thread. At the same time, when adjusting the angle of the friction disk, the mounting frame can move radially along the through hole to compensate for the offset of the contact position with the silk thread caused by the change in the angle of the friction disk.

[0007] Preferably, there are three friction disks, and the three friction disks are arranged on the mounting frame at equal intervals in the vertical direction. The axes of the friction disks are parallel to each other, and the contact positions of the friction disks with the silk thread are adjusted synchronously with the change in the axis angle of the drive shaft.

[0008] Preferably, a guide rail extending in the vertical direction is provided on the mounting frame. A support frame slidably engaged with the guide rail is provided on the guide rail. The support frame and the guide rail are in damping sliding engagement. A connection head rotatably connected to the support frame and used to support the friction disk is provided on the support frame. A transmission shaft for transmitting power to the friction disk on the connection head is provided on the drive shaft, and the transmission shaft is a telescopic structure.

[0009] Preferably, the same number of drive frames corresponding to the friction disks one by one are provided on the drive shaft, and a first transmission component for driving the transmission shaft to rotate is provided on the drive frame.

[0010] Preferably, the drive frame can also slide along the axis direction of the drive shaft. A first lead screw parallel to its axis is provided beside the drive shaft. The drive frame is sleeved on both the first lead screw and the drive shaft, and the drive frame is in threaded engagement with the first lead screw.

[0011] Preferably, the friction disk is rotatably provided on the top of the connection head, and a second transmission component drivingly connected to the transmission shaft is provided on the connection head.

[0012] Preferably, a fixing pin for limiting the friction disk is provided on each connection head.

[0013] Preferably, a fixing frame rotatably provided on the mounting frame is provided at the bottom of the drive shaft. A mounting plate extending downward from the base is provided on the fixing frame. An avoidance groove for avoiding the mounting plate is provided on the base, and a drive component for driving the mounting plate to move is provided below the base.

[0014] Preferably, a slide rail extending radially along the through hole is provided on the base, the mounting frame is slidably disposed on the slide rail, and a linear drive for driving the mounting frame to move is provided below the base.

[0015] A false twisting method for a texturing machine, applied to the false twisting device of a high-speed texturing machine for improving false twist balance, comprises the following steps:

[0016] S1, introducing the wire from the through hole of the base so that the wire is located between the three friction discs, and the end of the wire is wound up by a winding device in a subsequent process;

[0017] S2, adjusting the distance between the friction disc and the wire by sliding the mounting frame along the radial direction of the through hole, so that the three friction discs are staggeredly arranged around the wire;

[0018] S3, start the driving shaft, the driving shaft rotates to drive the friction disk to rotate, and at the same time the winding device continuously winds up and drives the silk thread to pass through the friction disk, and the friction disk performs false twisting operation on the passing silk thread;

[0019] S4a. When the friction disc is worn, the drive shaft is controlled to rotate around the connection point between the drive shaft and the mounting bracket, driving the friction disc to rotate, changing the angle between the axis of the friction disc and the axis of the through hole, so that the unworn or less worn side of the upper outer edge and the lower outer edge of the friction disc contacts the wire; S4b. While adjusting the angle of the friction disc, the mounting bracket is controlled to move radially along the through hole to compensate for the offset of the contact position with the wire caused by the change in the angle of the friction disc.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention adjusts the driving shaft so that the driving shaft can rotate around the connection point between the driving shaft and the mounting frame, thereby driving the friction disc connected to the driving shaft to rotate, so as to achieve the adjustment of the angle between the axis of the friction disc and the axis of the through hole, so that the friction disc can achieve that only one side of its upper outer edge and lower outer edge contacts the silk thread through the adjustment of the angle. This method of switching the contact surface between the friction disc and the silk thread by adjusting the angle of the friction disc balances the wear of the friction disc, improves the stability of false twisting, and at the same time prolongs the service life of the friction disc and reduces the maintenance frequency;

[0022] 2. The present invention compensates for the position deviation caused by the angle change of the friction disk by the radial sliding of the mounting frame along the through hole, so that the silk thread can always receive a uniform false twist force from the friction disk. This automatic compensation method effectively improves the problem of uneven false twist force of traditional false twist machines, avoids the instability of false twist caused by the position deviation of the silk thread, and improves the processing quality of the silk thread;

[0023] 3. The present invention supports the friction disc through a connector, and with the arrangement of the guide rail and the support frame, the friction disc can only be adjusted in the vertical direction, thereby ensuring the contact distance between multiple friction discs and the lead screw. During the false twisting process of the silk thread passing through the friction disc, the friction disc adjusts its axis according to the angle of the drive shaft to ensure that one of the upper outer edge and the lower outer edge of the friction disc contacts the silk thread, thereby balancing the wear of the friction disc, extending the service life of the friction disc, improving the stability of the false twisting operation, and facilitating the individual replacement of each friction disc, avoiding the need to remove all the friction wheels on the drive shaft during replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a three-dimensional structural schematic diagram when the lower outer edge of the friction disc contacts the silk thread in the first embodiment of the false twisting device of a high-speed texturing machine for improving false twisting balance Figure 1 ;

[0025] Figure 2 is a three-dimensional structural schematic diagram when the lower outer edge of the friction disc contacts the silk thread in the first embodiment of the false twisting device of a high-speed texturing machine for improving false twisting balance Figure 2 ;

[0026] Figure 3 is a three-dimensional structural schematic diagram when the upper outer edge of the friction disc contacts the silk thread in the first embodiment of the false twisting device of a high-speed texturing machine for improving false twisting balance;

[0027] Figure 4 is a side view when the upper outer edge of the friction disc contacts the silk thread in the first embodiment of the false twisting device of a high-speed texturing machine for improving false twisting balance;

[0028] Figure 5 is a top view when the upper outer edge of the friction disc contacts the silk thread in the first embodiment of the false twisting device of a high-speed texturing machine for improving false twisting balance;

[0029] Figure 6 is a three-dimensional structural schematic diagram of the mounting rack, drive shaft and friction disc in the first embodiment of the false twisting device of a high-speed texturing machine for improving false twisting balance;

[0030] Figure 7 is a three-dimensional structural schematic diagram of the base, mounting rack, drive shaft and friction disc in the first embodiment of the false twisting device of a high-speed texturing machine for improving false twisting balance;

[0031] Figure 8 is a three-dimensional structural schematic diagram of the mounting rack, friction disc, guide rail and support frame in the first embodiment of the false twisting device of a high-speed texturing machine for improving false twisting balance;

[0032] Figure 9It is a three-dimensional structural diagram of a mounting frame, a connecting head, a driving frame and a supporting frame in a first embodiment of a false twist device of a high-speed texturing machine for improving false twist balance;

[0033] Figure 10 yes Figure 2 The enlarged view of point A in the middle;

[0034] Figure 11 It is a schematic diagram of the three-dimensional structure of a base, a mounting frame, a friction disc and a driving shaft in a second embodiment of a false twist device of a high-speed texturing machine for improving false twist balance;

[0035] Figure 12 The present invention is a side view of a base, a mounting frame, a friction disc and a driving shaft in a second embodiment of a false twist device of a high-speed texturing machine for improving false twist balance.

[0036] The numbers in the figure are: 1, base; 11, through hole; 12, avoidance groove; 121, rack; 13, slide rail; 131, linear drive; 2, mounting frame; 21, friction plate; 22, guide rail; 23, support frame; 231, connector; 2311, second transmission assembly; 23111, third bevel gear; 23112, fourth bevel gear; 2312, mounting shaft; 2313, fixing pin; 232, transmission shaft; 3, drive shaft; 31, drive frame; 311, first transmission assembly; 3111, first bevel gear; 3112, second bevel gear; 32, first screw rod; 33, fixing frame; 331, mounting plate; 332, first rotary drive motor; 333, drive assembly; 3331, first gear. DETAILED DESCRIPTION

[0037] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0038] like Figures 1 to 7 , Figure 11 and Figure 12 As shown: a false twisting device of a high-speed texturing machine for improving false twist balance, comprising a base 1 and a through hole 11 arranged in the center of the base 1 for silk thread to pass through, three mounting brackets 2 that can slide along the radial direction are evenly distributed around the circumference of the through hole 11, each mounting bracket 2 is provided with a driving shaft 3 that is rotatably connected to it, and the driving shaft 3 is provided with at least one friction disk 21 that is transmission-connected to it; the driving shaft 3 can rotate around the connection point between it and the mounting bracket 2 to change the angle between the axis of the friction disk 21 and the axis of the through hole 11, and the upper outer edge and the lower outer edge of the friction disk 21 can respectively perform false twisting operation on the silk thread by adjusting the angle of the friction disk 21, and at the same time, when adjusting the angle of the friction disk 21, the mounting bracket 2 can move along the radial direction of the through hole 11 to compensate for the deviation of the contact position with the silk thread caused by the change of the angle of the friction disk 21.

[0039] First embodiment: The silk thread is introduced into the false twisting device from the through hole 11 in the center of the base 1, and will pass through the friction discs 21 on the three mounting frames 2 in sequence, so that the end of the silk thread can be wound up by the winding device of the subsequent process, and the three friction discs 21 will be staggeredly arranged on the side of the silk thread. At this time, the driving shaft 3 is started, and the rotation of the driving shaft 3 drives the rotation of the friction disc 21 connected to it (the friction disc 21 is directly sleeved on the driving shaft 3). The winding device continuously winds up and drives the silk thread to pass through the friction disc 21, so that the rotating friction disc 21 can perform false twisting operation on the passing silk thread.

[0040] The friction disc 21 of the conventional false twisting machine will wear out during the contact with the silk thread (the axis of the friction disc 21 is parallel to the axis of the through hole 11), so that the service life of the friction disc 21 is limited and needs to be replaced and maintained regularly. After the friction disc 21 of the false twisting device of the present invention is worn out, the drive shaft 3 is adjusted so that the drive shaft 3 can rotate around the connection point between the drive shaft 3 and the mounting frame 2, thereby driving the friction disc 21 connected to the drive shaft 3 to rotate, so as to achieve the adjustment of the angle between the axis of the friction disc 21 and the axis of the through hole 11, so that the friction disc 21 can achieve only one side of its upper outer edge and lower outer edge contacting with the silk thread through the adjustment of the angle. It should be noted that the friction disc 21 is in an inclined state in the initial state, that is, the upper outer edge or the lower outer edge of the friction disc 21 contacts with the silk thread. This method of switching the contact surface of the friction disc 21 and the silk thread by adjusting the angle of the friction disc 21 balances the wear of the friction disc 21, improves the stability of false twisting, and at the same time prolongs the service life of the friction disc 21 and reduces the maintenance frequency.

[0041] Since the angle change of the friction disc 21 will affect the contact position between the friction disc 21 and the silk thread (angle adjustment will make the friction discs 21 on the three mounting frames 2 move away from or closer to the through hole 11, thereby changing the contact force and position between the friction discs 21 and the silk thread), the mounting frame 2 slides radially along the through hole 11 to compensate for the position deviation caused by the angle change of the friction disc 21, so that the silk thread can always receive a uniform false twist force from the friction disc 21. This automatic compensation method effectively improves the problem of uneven false twist force of traditional false twisting machines, avoids the instability of false twisting caused by the position deviation of the silk thread, and improves the processing quality of the silk thread. Since the angle of the friction disc 21 is adjustable and the mounting frame 2 can slide to adjust the position, there is no need for a complicated disassembly and assembly process when replacing and maintaining the friction disc 21. It not only shortens the equipment maintenance time, but also reduces the difficulty of manual operation and improves production efficiency.

[0042] like Figures 1 to 5 , Figure 11 and Figure 12As shown: There are three friction discs 21. The three friction discs 21 are arranged on the mounting frame 2 at equal intervals in the vertical direction. The axes of the friction discs 21 are parallel to each other, and each friction disc 21 will synchronously adjust its contact position with the silk thread as the axis angle of the drive shaft 3 changes.

[0043] When the drive shaft 3 starts, it will drive the friction disc 21 to rotate, so that the silk thread is subjected to false twisting when passing through the friction disc 21. Since the axis of the friction disc 21 will synchronously change with the axis angle of the drive shaft 3, one of the upper outer edge or the lower outer edge of the friction disc 21 will contact the silk thread. Different from the traditional friction disc 21 with a fixed axis, this device adjusts the angle of the axis of the friction disc 21 to keep the silk thread always in the optimal false twisting position, ensuring the balance of the false twisting force and improving the stability of false twisting. It balances the wear of the friction disc 21. Compared with the traditional false twisting method of the fixed friction disc 21, it effectively extends the service life of the friction disc 21 and reduces the maintenance requirements.

[0044] Second Embodiment: In order to further improve the false twisting effect on the silk thread, three friction discs 21 can be arranged on the drive shaft 3. However, if the scheme of directly sleeving the friction disc 21 on the drive shaft 3 in the first embodiment is adopted, when the axis of the drive shaft 3 tilts, it will drive the three friction discs 21 to tilt together. Since the three friction discs 21 are not in the same vertical direction, the three friction discs 21 on the same drive shaft 3 cannot operate on the silk thread at the same time. Therefore, the three friction discs 21 need to be distributed at equal intervals in the vertical direction, and the axes of the three friction discs 21 are parallel to each other, so that the three friction discs 21 can operate on the passing silk thread, so that the silk thread is always subjected to a uniform false twisting force during the entire false twisting process, avoiding false twisting instability caused by the offset of the contact position and improving the processing quality of the silk thread.

[0045] As Figures 3 to 9 shown: A guide rail 22 extending in the vertical direction is provided on the mounting frame 2. A support frame 23 slidably engaged with it is arranged on the guide rail 22. The support frame 23 and the guide rail 22 are in a damped sliding fit. A connecting head 231 rotatably connected to the support frame 23 and used to support the friction disc 21 is arranged on the support frame 23. A transmission shaft 232 for transmitting power to the friction disc 21 on the connecting head 231 is arranged on the drive shaft 3. The transmission shaft 232 is a telescopic structure.

[0046] The friction disc 21 is supported by the connecting head 231, and combined with the settings of the guide rail 22 and the support frame 23, the friction disc 21 can only be adjusted in the vertical direction, thereby ensuring the contact distance between the multiple friction discs 21 and the silk thread. During the process of false twisting the silk thread through the friction disc 21, the friction disc 21 will adjust its axis according to the angle of the drive shaft 3 to ensure that one of the upper outer edge and the lower outer edge of the friction disc 21 contacts the silk thread, thereby balancing the wear of the friction disc 21, extending the service life of the friction disc 21, and improving the stability of the false twisting operation.

[0047] The angular change of the drive shaft 3 drives the transmission shaft 232. The transmission shaft 232 drives the connector 231 to rotate on the support frame 23, so that the axis of the friction disk 21 can be adjusted. Since the friction disk 21 is supported by the connector 231, and the support frame 23 can slide along the guide rail 22, the friction disk 21 installed on the connector 231 can only move in the vertical direction, ensuring that after the axis angle of the friction disk 21 is adjusted, the contact distances between the outer edges of multiple friction disks 21 and the silk thread are kept consistent, avoiding the need to adjust multiple friction disks 21 and not affecting the false twist balance of the silk thread due to the adjustment of the angle.

[0048] At the same time, in order to ensure that the friction disk 21 can still obtain stable power when the angle of the drive shaft 3 changes, the transmission shaft 232 adopts a telescopic structure, so that it can still effectively transmit the power of the drive shaft 3 to the friction disk 21 when the axis of the drive shaft 3 changes, enabling the friction disk 21 to rotate normally and ensuring the continuous stability of the false twist operation.

[0049] As Figures 1 to 4 、 Figures 6 to 9 shown: The drive shaft 3 is provided with drive brackets 31 that are the same in number as and correspond one-to-one with the friction disks 21, and the drive brackets 31 are provided with first transmission components 311 for driving the transmission shaft 232 to rotate.

[0050] During the false twist operation, the silk thread will pass through multiple friction disks 21 in sequence. At this time, the rotation of the drive shaft 3 will drive the friction disks 21 to perform false twist operations on the silk thread. Since the axis angle of the drive shaft 3 will change, and the movement of the drive shaft 3 will drive the drive brackets 31 to move accordingly, and drive the transmission shaft 232 connected thereto to synchronously adjust its position (one end of the transmission shaft 232 is rotatably installed on the drive bracket 31), so that it can still maintain stable power transmission during the movement of the drive bracket 31. At the same time, due to the setting of the support frame 23 and the guide rail 22, the friction disk 21 can only slide in the vertical direction, so that the distance change between the friction disk 21 and the silk thread is fixed. The transmission shaft 232 can ensure that the friction disk 21 always obtains stable driving force by virtue of its own telescopic performance, thus ensuring the continuity of the false twist process and improving the processing quality.

[0051] When the drive shaft 3 rotates, the first transmission assembly 311 on the drive frame 31 is started, and the transmission shaft 232 is driven to rotate through the assembly. The first transmission assembly 311 can adopt a bevel gear transmission method, wherein a first bevel gear 3111 is provided on the drive frame 31 to be connected to the drive shaft 3, and a second bevel gear 3112 is provided on the side of the first bevel gear 3111 to be meshed with the first bevel gear 3111, and the second bevel gear 3112 is sleeved on the transmission shaft 232. Through the mutual meshing of the first bevel gear 3111 and the second bevel gear 3112, stable power transmission is achieved, thereby driving the friction disk 21 to operate. In addition, the first transmission assembly 311 can also adopt a universal joint structure to meet the adjustment requirements of a larger angle, ensure the reliability and flexibility of power transmission, and further improve the stability and efficiency of false twisting operation.

[0052] like Figures 6 to 9 As shown: the driving frame 31 can also slide along the axial direction of the driving shaft 3, and a first screw rod 32 parallel to its axis is arranged on the side of the driving shaft 3, and the driving frame 31 is respectively sleeved on the first screw rod 32 and the driving shaft 3, and the driving frame 31 and the first screw rod 32 are threadedly matched.

[0053] By setting the first screw rod 32, when the first screw rod 32 rotates, the position of the drive frame 31 on the drive shaft 3 can be accurately adjusted, so that the power transmission position of the transmission shaft 232 is more accurate. Compared with the traditional fixed installation, this adjustment method not only provides higher flexibility, but also ensures the stability of the adjustment process, avoiding the uneven false twisting effect caused by improper adjustment. In addition, a spline connection is adopted between the drive frame 31 and the drive shaft 3, a spline groove (not shown in the figure) is provided on the drive shaft 3, and a bearing is provided on the drive frame 31, and a spline matching the spline groove is provided on the bearing (not shown in the figure), so that the drive frame 31 can still maintain the synchronous rotation of the bearing during the sliding process along the drive shaft 3, so that the power can be transmitted to the friction disk 21 through the transmission shaft 232, thereby avoiding the situation of power transmission lag or instability.

[0054] When the position of the driving frame 31 on the driving shaft 3 is adjusted, the transmission shaft 232 will move with the movement of the driving frame 31, thereby driving the support frame 23 on the guide rail 22 to move through the other end of the transmission shaft 232, so that the support frame 23 slides along the guide rail 22, thereby changing the position of the friction disc 21 on the guide rail 22. In this way, the spacing between multiple friction discs 21 can be accurately adjusted, so that the friction discs 21 maintain the same distance to meet different silk processing requirements, improve the adaptability and consistency of the false twisting process, reduce the difficulty of adjustment caused by equipment limitations, improve production efficiency and reduce maintenance costs.

[0055] like Figures 2 to 4 and Figures 6 to 9As shown, the friction disc 21 is rotatably arranged on the top of the connecting head 231 , and the connecting head 231 is provided with a second transmission assembly 2311 which is transmission-connected to the transmission shaft 232 .

[0056] The two ends of the transmission shaft 232 are rotatably arranged on the driving shaft 3 and the connector 231, respectively. The second transmission assembly 2311 can adopt a bevel gear meshing transmission mode, wherein a third bevel gear 23111 is arranged on one end of the transmission shaft 232 close to the connector 231, and a fourth bevel gear 23112 meshingly connected therewith is arranged beside the third bevel gear 23111, and a mounting shaft 2312 that can drive the friction disk 21 to rotate is arranged on the connector 231, and the fourth bevel gear 23112 is sleeved on the transmission shaft 232. When the transmission shaft 232 rotates, the third bevel gear 23111 will drive the fourth bevel gear 23112 to rotate, and the fourth bevel gear 23112 drives the rotation of the mounting shaft 2312, thereby driving the friction disk 21 to rotate, and realizing the false twisting effect on the silk thread. Ensure the stable rotation of the friction disk 21, so that the silk thread is more evenly stressed during the false twisting process, avoid the silk thread tension fluctuation caused by unstable transmission, thereby improving the quality and consistency of the finished silk thread.

[0057] In addition, in order to improve the flexibility of transmission, the second transmission assembly 2311 can also adopt a universal joint structure to adapt to the power transmission requirements under different working conditions. The universal joint can compensate for the angle deviation between the transmission shaft 232 and the friction plate 21, ensure stable power transmission, effectively reduce the additional resistance caused by angle changes, and improve transmission efficiency and equipment life.

[0058] like Figures 6 to 9 As shown, each connector 231 is provided with a fixing pin 2313 for limiting the friction disc 21 .

[0059] The fixing pin 2313 can be installed by means of snap-fit ​​or threaded fitting. By setting the fixing pin 2313, it is possible to ensure that the friction disc 21 maintains a stable axial position during operation, and avoid axial displacement of the friction disc 21 due to high-speed rotation or external interference, thereby affecting the accuracy and stability of the false twisting process. It ensures that the silk thread is evenly stressed during the false twisting process, thereby improving the processing quality. It can not only achieve rapid disassembly and maintenance, but also provide high-strength fixed support to improve the adaptability of the equipment. It is helpful for rapid replacement or adjustment, improves the operating efficiency of the production line, and reduces downtime caused by equipment maintenance.

[0060] At the same time, since each connector 231 is individually mounted with a friction disc 21 , the device can avoid the need to remove all friction discs 21 on the drive shaft 3 when replacing the friction disc 21 , thereby improving the efficiency of maintenance.

[0061] like Figures 1 to 4 andFigures 6 to 9 As shown in the figure: A rotatable fixing bracket 33 is provided at the bottom of the drive shaft 3 and is mounted on the mounting bracket 2. An installation plate 331 extending downward from the fixing bracket 33 is provided on the fixing bracket 33. An avoidance groove 12 for avoiding the installation plate 331 is provided on the base 1. A drive assembly 333 for driving the installation plate 331 to move is provided below the base 1.

[0062] During the operation of the false twisting device, the bottom of the drive shaft 3 enables the axis of the drive shaft 3 to be adjusted through the fixing bracket 33 rotatably mounted on the mounting bracket 2. The fixing bracket 33 is provided with a first rotation drive motor 332 for driving the drive shaft 3 to rotate, ensuring that the axis of the drive shaft 3 can be driven when it changes. Through the settings of the avoidance groove 12 and the installation plate 331, a connection end is provided on the fixing bracket 33 for facilitating connection with the drive device.

[0063] The drive device can be set as a cylinder or an electric push rod. The output shaft of the cylinder or the electric push rod is rotatably connected to the installation plate 331, and the cylinder or the electric push rod is rotatably mounted below the base 1. The extension of the output shaft of the cylinder or the electric push rod drives the installation plate 331 to move, enabling the fixing bracket 33 to rotate around its connection point with the base 1, thereby realizing the adjustment of the axis of the drive shaft 3.

[0064] Thus, the axis angle of the drive shaft 3 can be accurately adjusted to adapt to different false twisting requirements, while ensuring the stability of power transmission and improving the uniformity of filament false twisting.

[0065] At the same time, a first gear 3331 fixedly connected to it can also be provided on the installation plate 331. A rack 121 meshing with the first gear 3331 is provided below the avoidance groove 12. When the mounting bracket 2 slides radially along the through hole 11, the first gear 3331 will roll along the rack 121 (when the rack 121 is fixed, the first gear 3331 makes both translational and rotational motions). Since the first gear 3331 is fixedly connected to the installation plate 331, the rotation of the first gear 3331 will directly be converted into the swing of the fixing bracket 33 around its connection point with the mounting bracket 2, realizing the adjustment of the axis angle of the drive shaft 3.

[0066] It should be noted that when the mounting bracket 2 moves linearly in the radial direction, it will drive the overall translation of the fixing bracket 33. When the first gear 3331 moves along an arc trajectory due to the change of the axis of the drive shaft 3, the linear movement of the mounting bracket 2 will reversely adjust the position of the first gear 3331, partially offsetting the deviation between the arc trajectory and the straight line of the rack 121, maintaining the meshing state of the first gear 3331 and the rack 121, and avoiding jamming of the first gear 3331 and the rack 121. Through the above method, the driving of the angle change of the drive shaft 3 can be realized without adding a drive device, reducing the investment in equipment costs.

[0067] Such asFigures 1 to 4 and Figures 6 to 9 As shown in Figures 6 to 9 , a slide rail 13 extending radially along the through hole 11 is provided on the base 1. The mounting bracket 2 is slidably arranged on the slide rail 13, and a linear actuator 131 for driving the mounting bracket 2 to move is provided below the base 1.

[0068] The linear actuator 131 provides power to drive the mounting bracket 2 to move precisely along the slide rail 13, thereby adjusting the positions of the drive shaft 3 and related components to adapt to different silk false twisting operation requirements and ensuring the contact stability between the friction disc 21 and the silk. The linear actuator 131 is preferably an electric cylinder, a ball screw drive mechanism, a cylinder or a hydraulic cylinder, etc., to provide different driving forces and precision options.

[0069] As Figures 1 to 7 , Figure 11 and Figure 12 As shown in Figures 1 to 7 , Figure 11 and Figure 12 , a false twisting method for a texturing machine is applied to the above-mentioned false twisting device for a high-speed texturing machine to improve false twisting uniformity, and includes the following steps:

[0070] S1. Introduce the silk into the through hole 11 of the base 1 so that the silk is located between the three friction discs 21, and the end of the silk is wound by a winding device in the subsequent process.

[0071] S2. Adjust the distance between the friction disc 21 and the silk by sliding the mounting bracket 2 radially along the through hole 11, so that the three friction discs 21 are staggered on the circumference of the silk.

[0072] S3. Start the drive shaft 3. The drive shaft 3 drives the friction disc 21 to rotate. At the same time, the winding device continuously winds to drive the silk to pass through the friction disc 21, and the friction disc 21 performs false twisting operation on the passing silk.

[0073] S4a. When the friction disc 21 is worn, control the drive shaft 3 to rotate around its connection point with the mounting bracket 2, drive the friction disc 21 to rotate, change the included angle between the axis of the friction disc 21 and the axis of the through hole 11, so that the un-worn or less worn side of the upper outer edge and the lower outer edge of the friction disc 21 contacts the silk; S4b. While adjusting the angle of the friction disc 21, control the mounting bracket 2 to move radially along the through hole 11 to compensate for the offset of the contact position with the silk caused by the angle change of the friction disc 21.

[0074] The above embodiments only represent one or several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A false twist device for a high-speed texturing machine for improving false twist balance, comprising a base (1) and a through hole (11) arranged in the center of the base (1) for a thread to pass through, characterized in that: Three mounting frames (2) are evenly distributed around the circumference of the through hole (11) and can slide in the radial direction thereof. Each mounting frame (2) is provided with a driving shaft (3) rotatably connected thereto. The driving shaft (3) is provided with at least one friction disc (21) transmission-connected thereto. The driving shaft (3) can change the angle between the axis of the friction disc (21) and the axis of the through hole (11) by rotating around the connection point between the driving shaft (3) and the mounting frame (2). By adjusting the angle of the friction disc (21), the upper outer edge and the lower outer edge of the friction disc (21) can respectively perform false twisting operations on the silk thread. At the same time, when adjusting the angle of the friction disc (21), the mounting frame (2) can compensate for the deviation of the contact position between the friction disc (21) and the silk thread caused by the change in the angle of the friction disc (21) by moving in the radial direction of the through hole (11).

2. A false twist device for a high-speed texturing machine for improving false twist balance according to claim 1, characterized in that: There are three friction discs (21), which are arranged on the mounting frame (2) at equal intervals in the vertical direction, the axes of the friction discs (21) are parallel to each other, and the friction discs (21) can synchronously adjust their contact position with the wire as the angle of the axis of the drive shaft (3) changes.

3. A false twist device for a high-speed texturing machine for improving false twist balance according to claim 2, characterized in that: The mounting frame (2) is provided with a guide rail (22) extending in a vertical direction, the guide rail (22) is provided with a support frame (23) slidably matched with the guide rail (22), the support frame (23) and the guide rail (22) are in damping sliding cooperation, the support frame (23) is provided with a connecting head (231) rotatably connected with the support frame (23) and used to support the friction disk (21), and the drive shaft (3) is provided with a transmission shaft (232) for transmitting power to the friction disk (21) on the connecting head (231), and the transmission shaft (232) is a retractable structure.

4. A false twist device for a high-speed texturing machine for improving false twist balance according to claim 3, characterized in that: The drive shaft (3) is provided with drive racks (31) whose number is the same as and corresponds to the friction discs (21), and the drive racks (31) are provided with first transmission components (311) for driving the transmission shaft (232) to rotate.

5. A false twist device for a high-speed texturing machine for improving false twist balance according to claim 4, characterized in that: The drive frame (31) can also slide along the axial direction of the drive shaft (3). A first screw rod (32) parallel to the axial direction of the drive shaft (3) is arranged beside the drive shaft (3). The drive frame (31) is sleeved on the first screw rod (32) and the drive shaft (3) respectively. The drive frame (31) and the first screw rod (32) are threadedly matched.

6. A false twist device for a high-speed texturing machine for improving false twist balance according to claim 3, characterized in that: The friction disc (21) is rotatably arranged on the top of the connecting head (231), and a second transmission assembly (2311) is provided on the connecting head (231) and is transmission-connected to the transmission shaft (232).

7. A false twist device for a high-speed texturing machine for improving false twist balance according to claim 3, characterized in that: Each connector (231) is provided with a fixing pin (2313) for limiting the position of the friction disc (21).

8. A false twist device for a high-speed texturing machine for improving false twist balance according to claim 1, characterized in that: A fixing frame (33) rotatably arranged on the mounting frame (2) is provided at the bottom of the driving shaft (3); a mounting plate (331) extending toward the bottom of the base (1) is provided on the fixing frame (33); an avoidance groove (12) for avoiding the mounting plate (331) is provided on the base (1); and a driving assembly (333) for driving the mounting plate (331) to move is provided below the base (1).

9. A false twist device for a high-speed texturing machine for improving false twist balance according to claim 1, characterized in that: A slide rail (13) extending radially along the through hole (11) is provided on the base (1), the mounting frame (2) is slidably arranged on the slide rail (13), and a linear drive (131) for driving the mounting frame (2) to move is provided below the base (1).

10. A false twisting method for a texturing machine, applied to a false twisting device for a high-speed texturing machine for improving false twist balance as claimed in any one of claims 1 to 9, characterized in that: The following steps are included: S1, introducing the silk thread through the through hole (11) of the base (1), so that the silk thread is located between the three friction discs (21), and the end of the silk thread is wound up by a winding device in a subsequent process; S2, adjusting the distance between the friction disc (21) and the thread by sliding the mounting frame (2) along the radial direction of the through hole (11), so that the three friction discs (21) are arranged alternately around the thread; S3, starting the driving shaft (3), the driving shaft (3) drives the friction disk (21) to rotate, and at the same time the winding device continuously winds up and drives the silk thread to pass through the friction disk (21), and the friction disk (21) performs a false twist operation on the passing silk thread; S4a, when the friction disc (21) is worn, the drive shaft (3) is controlled to rotate about the connection point between the drive shaft (3) and the mounting frame (2), driving the friction disc (21) to rotate, changing the angle between the axis of the friction disc (21) and the axis of the through hole (11), so that the unworn or less worn side of the upper outer edge and the lower outer edge of the friction disc (21) contacts the wire; S4b, while adjusting the angle of the friction disk (21), controlling the mounting frame (2) to move radially along the through hole (11), thereby compensating for the deviation of the contact position between the friction disk (21) and the wire caused by the change in the angle of the friction disk (21).

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