CN211522419U - Yarn twisting and winding device and ring spinning machine with same - Google Patents

Abstract

The utility model provides a yarn twisting take-up device and have its ring spinning machine. The yarn twisting and winding device comprises: a stator magnet having a mounting hole; the magnetic ring is rotatably arranged in the mounting hole of the stator magnet; and the yarn guide piece is used for guiding the yarn to wind the yarn on the spindle of the ring spinning machine. During spinning, the stator magnet can be electrified to enable the magnetic ring to rotate in the mounting hole, and then the magnetic ring can drive the yarn guide piece to rotate, so that the yarn guide piece twists yarns and winds the yarns on a spindle. The rotation of the magnetic ring is controlled by the stator magnet, the lifting of the magnetic ring is realized by the steel collar plate, the abrasion between the yarn and the magnetic ring is reduced without driving the magnetic ring to move by the yarn, the frequent replacement of the magnetic ring is not needed, the yield of the ring spinning machine can be ensured, the workload of operators is reduced, the rotating speed of the spindle can be improved and the spinning efficiency is improved because the mechanical friction between the steel wire ring and the steel collar is cancelled. The twisting and winding speed and the like are controlled by a computer, and a road is opened for the digital spinning.

Description

Yarn twisting and winding device and ring spinning machine with same

Technical Field

The utility model relates to a weaving equipment technical field especially relates to a yarn twisting take-up device and have its ring spinning machine.

Background

At present, a ring spinning machine drives a steel wire ring to rotate around a steel collar to twist through a yarn, the steel collar moves up and down to move yarn, the rotation speed of a spindle is higher than that of a steel wire ring block to complete winding, and the ring spinning machine can be widely applied to spinning engineering of various short fibers.

However, in practical application, the steel wire ring is easy to wear and needs to be replaced frequently to ensure the spinning quality. However, the frequent replacement of the traveler requires the ring spinning machine to be stopped for replacement, which causes a decrease in the spinning throughput and an increase in the workload of the operator, affecting the spinning efficiency.

SUMMERY OF THE UTILITY MODEL

Accordingly, it is necessary to provide a yarn twisting and winding apparatus capable of reducing abrasion and a ring spinning machine having the same, in order to solve the problem that the conventional ring spinning machine is easily abraded due to the twisting of the traveler.

The above purpose is realized by the following technical scheme:

a yarn twisting and winding device which autonomously rotates to complete yarn twisting and winding and can be mounted on a lifting device which can move up and down in a ring spinning machine to complete yarn moving, the yarn twisting and winding device comprises:

a stator magnet having a mounting hole, mounted to the lifting device;

the magnetic ring is rotatably arranged in the mounting hole of the stator magnet; and

and the yarn guide piece is arranged on the magnetic ring and used for guiding yarn, twisting the yarn and winding the yarn on a spindle of the ring spinning machine.

In one embodiment, the yarn twisting and winding device further comprises a rolling bearing, an outer ring of the rolling bearing is mounted in the mounting hole, and an inner ring of the rolling bearing is mounted with the magnetic ring.

In one embodiment, the rolling bearing is in interference fit with the mounting hole;

the rolling bearing and the magnetic ring are in interference fit.

In one embodiment, the rolling bearing is made of a ceramic material or a non-magnetic material;

or the rolling bearing is coated with a wear-resistant coating.

In one embodiment, the number of the yarn guide pieces is multiple, the yarn guide pieces are arranged at the end part of the magnetic ring, and the yarn guide pieces are symmetrically distributed at intervals;

the yarn guide piece is a yarn guide hook or a yarn guide ring.

In one embodiment, the yarn twisting and winding device further comprises a hall element, and the hall element is arranged on the stator magnet and used for detecting the position of the magnetic ring.

In one embodiment, the yarn twisting and winding device further comprises a protective shell, and the protective shell is covered on the stator magnet and the magnetic ring.

In one embodiment, the stator magnet has a fixing hole through which a screw passes to fix the stator magnet to the lifting device.

A ring spinning machine comprises a driving device, a spindle, a lifting device and a yarn twisting and winding device according to any one of the technical characteristics;

the spindle is arranged on the driving device and driven by the driving device to rotate, the yarn twisting and winding device is arranged on the lifting device, and the lifting device drives the yarn twisting and winding device to do lifting motion.

In one embodiment, the ring spinning machine further comprises a ring plate, the yarn twisting winding device is mounted on the ring plate, and the ring plate is mounted on the lifting device and can be lifted synchronously with the lifting device.

After the technical scheme is adopted, the utility model discloses following technological effect has at least:

the utility model discloses a yarn twisting take-up device and have its ring spinner, during spinning, can make the magnetic ring rotate in the mounting hole after stator magnet circular telegram, and then the magnetic ring can drive the guide yarn piece and rotate for guide yarn piece twists the yarn and twines on the spindle. The rotation of the magnetic ring is controlled by the stator magnet, the lifting of the magnetic ring is realized by the steel collar plate, the yarn is not needed to drive the magnetic ring to move, the problem that the existing ring spinner is easy to wear due to the twisting of the steel wire ring is effectively solved, the wear between the yarn and the magnetic ring is reduced, the frequent replacement of the magnetic ring is not needed, the yield of the ring spinner can be ensured, the workload of operators is reduced, and the spinning efficiency is improved.

Drawings

Fig. 1 is a plan view of a yarn twisting and winding apparatus according to an embodiment of the present invention;

FIG. 2 is a front cross-sectional view of the yarn twisting winding device shown in FIG. 1;

fig. 3 is a schematic structural view of the yarn twisting and winding device shown in fig. 2 installed in a ring spinning machine.

Wherein:

100-a yarn twisting and winding device;

110-a stator magnet;

120-a magnetic ring;

130-a yarn guide;

140-rolling bearings;

150-a hall element;

160-a protective shell;

200-ring plate;

300-spindle;

400-a drive device;

500-a bobbin;

600-base.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the following embodiment is described in further detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1 to 3, the present invention provides a yarn twisting and winding apparatus 100. The yarn twisting and winding device 100 is suitable for a ring spinning machine, and is used for twisting yarn and winding the twisted yarn on a bobbin 500 of a spindle 300 in the ring spinning machine. Ring spinner adopts the utility model discloses a behind the yarn of yarn twisting take-up device 100 twisting yarn, can be so that ring spinner lasts work, need not the maintenance and change, available numerical control technique directly sets for twist and winding speed to guarantee ring spinner's output, reduce operating personnel's work load, improve spinning efficiency. Meanwhile, after the winding speed is controlled by adopting a numerical control technology such as a computer, a road is opened for the digital spinning.

Alternatively, the yarn twisting winding device 100 according to an embodiment of the present invention is installed on a ring rail 200 that can move up and down in a ring spinning machine. The up-and-down movement of the ring plate 200 is realized by a lifting device, and the lifting device drives the ring plate 200 to move up and down. When the ring plate 200 moves up and down, the yarn twisting and winding device 100 may be driven to move up and down, as shown in fig. 3, the ring plate 200 may move up and down along the arrow direction, and further, the yarn twisting and winding device 100 may be driven to move up and down. Thus, the yarn twisting and winding device 100 can wind the yarn on the spindle 300 according to the user requirement, and the yarn winding of the upper and lower parts of the bobbin 500 is ensured to meet the user requirement.

It should be noted that the yarn twisting and winding device 100 may be installed on the original ring plate, that is, the yarn twisting and winding device 100 may be installed on the ring plate 200, and the ring plate 200 is installed on the lifting device; of course, the yarn twisting and winding device 100 may be formed without the ring rail 200, and the yarn twisting and winding device 100 is directly mounted to the lifting device, for example. Hereinafter, the yarn twisting and winding device 100 is only mounted on the ring plate 200 for illustration, and the principle of the yarn twisting and winding device 100 mounted on the lifting device is substantially the same as that mounted on the ring plate 200, and thus the description thereof is omitted.

Referring to fig. 1 to 3, in one embodiment, the yarn twisting and winding device 100 includes a stator magnet 110, a magnetic ring 120, and a yarn guide 130. The stator magnet 110 has a stator magnet 110 having a mounting hole, and is mounted on the ring rail 200. The magnetic ring 120 is rotatably installed in the installation hole of the stator magnet 110. The yarn guide 130 is disposed on the magnetic ring 120, and is used for guiding the yarn to wind the yarn around the spindle 300 of the ring spinning machine.

The ring plate 200 has a through hole through which the spindle 300 passes, and after the stator magnet 110 is mounted to the ring plate 200, the mounting hole of the stator magnet 110 corresponds to the through hole of the ring plate 200. The spindle 300 is located in the mounting hole of the stator magnet 110 and the through hole of the ring plate 200. When the ring rail 200 moves up and down, the stator magnet 110 is driven to move up and down along the height direction of the spindle 300. The magnetic ring 120 is used for twisting the yarn. The magnet ring 120 is rotatably installed in the installation hole of the stator magnet 110. After the stator magnet 110 is energized, the stator magnet 110 generates a magnetic field to drive the magnetic ring 120 in the magnetic field to rotate at a set rotation speed M, and during the rotation of the magnetic ring 120, the yarn guide 130 can twist the yarn at M speed and wind the yarn on the bobbin 500 of the spindle 300 with a rotation speed N different from the rotation speed M, where N is the winding speed of the yarn.

That is, the combination of the stator magnet 110 and the magnetic ring 120 is equivalent to a motor, the magnetic ring 120 is equivalent to a rotor, and the stator magnet 110 can drive the magnetic ring 120 to rotate after being electrified, so as to provide a power source for the magnetic ring 120 to rotate. Thus, when the ring spinning machine is spinning, the ring plate 200 moves up and down along the height direction of the spindle 300, and then the ring plate 200 drives the stator magnet 110 and the magnetic ring 120 thereon to move up and down, and the magnetic ring 120 is driven by the magnetic field force of the stator magnet 110 to rotate, so that the magnetic ring 120 can do both lifting motion and rotating motion, so that the yarn guide 130 winds the yarn on the spindle 300, and the yarn is wound on the bobbin 500 according to the requirement of a user.

Based on the above, the power source for the rotation of the magnetic ring 120 comes from the magnetic field force generated by the stator magnet 110, the power source for the lifting comes from the ring plate 200, and the yarn is not needed to drive the magnetic ring 120 to rotate and lift, so that the friction force generated by the yarn on the magnetic ring 120 can be reduced, the abrasion of the magnetic ring 120 is further reduced, the magnetic ring 120 is not needed to be frequently replaced, the ring spinning machine can continuously operate, the machine does not need to be stopped, the yield of the ring spinning machine is ensured, and the workload brought by the replacement of the magnetic ring 120 by an operator is also reduced. Meanwhile, the yarn does not need to drive the magnetic ring 120 to rotate and lift, so that the abrasion of the yarn can be reduced, and the quality of the yarn is ensured.

When the ring spinner adopts the yarn twisting and winding device 100 of the embodiment to twist, the rotation of the magnetic ring 120 is controlled by the stator magnet, the lifting of the magnetic ring 120 is realized by the ring rail 200, the yarn is not needed to drive the magnetic ring 120 to move, the problem of easy abrasion caused by the twisting of the steel wire ring of the ring spinner at present is effectively solved, the abrasion between the yarn and the magnetic ring 120 is reduced, the frequent replacement of the magnetic ring 120 is not needed, the yield of the ring spinner can be ensured, the workload of operators is reduced, and the spinning efficiency is improved.

The spindle 300 of the ring spinning machine rotates the bobbin 500 by the driving means 400, and the specific structure of the driving means 400 is mentioned below. While the spindle 300 is driven by the driving device 400 to rotate the bobbin 500, the magnetic ring 120 rotates under the magnetic field force of the stator magnet 110, and there is a rotation speed difference between the spindle 300 and the magnetic ring 120, so that the magnetic ring 120 can rotate relative to the spindle 300 to wind the yarn on the bobbin 500 of the spindle 300. It will be appreciated that the driving device 400 drives the spindle 300 to rotate the bobbin 500 at a high speed of M + N, and at the same time, the magnetic ring 120 rotates concentrically around the bobbin 500 at the speed of M and drives the yarn to twist the yarn. Where M is the twisting speed and N is the winding speed. The twisting of the yarn is realized in this way, and the abrasion of the magnetic ring 120 is reduced.

Alternatively, the stator magnet 110 is a two-pole magnet ring or a four-pole magnet ring, and a coil is wound on the magnet ring. The stator magnet 110 generates a magnetic field after being energized to control the rotation of the magnetic ring 120.

Alternatively, the inner wall of the mounting hole may be provided with a mounting groove, and the magnetic ring 120 may be rotatably mounted in the mounting groove, so that the magnetic ring 120 may be supported to prevent the magnetic ring 120 from falling off when the stator magnet 110 is powered off. Of course, the magnetic ring 120 may be suspended in the installation hole by the magnetic field force of the stator magnet 110.

Still alternatively, the magnetic ring 120 is securely supported in the mounting hole by a support. The support piece can ensure that the magnetic ring 120 rotates stably, and the magnetic ring 120 is prevented from moving, so that the interference between the magnetic ring 120 and the inner wall of the mounting hole is avoided, and the reliability of twisting operation is ensured; meanwhile, the support member may also prevent the magnetic ring 120 from falling. Referring to fig. 1 to 3, in an embodiment, the yarn twisting and winding device 100 further includes a rolling bearing 140, an outer ring of the rolling bearing 140 is mounted in the mounting hole, and an inner ring of the rolling bearing 140 is mounted with the magnetic ring 120. When the magnetic ring 120 rotates under the action of the magnetic field force of the stator magnet 110, the magnetic ring 120 drives the inner ring of the rolling bearing 140 to rotate relative to the outer ring of the rolling bearing 140. The rolling bearing 140 can fix the magnetic ring 120 to the stator magnet 110, so as to prevent the magnetic ring 120 from moving up and down, and prevent the magnetic ring 120 from interfering with the stator magnet 110, thereby ensuring the accuracy of the twisting of the magnetic ring 120.

In one embodiment, the rolling bearing 140 is in an interference fit with the mounting hole, and the rolling bearing 140 is in an interference fit with the magnetic ring 120. Thus, the assembly process can be reduced, and the installation is convenient. The stator magnet 110, the rolling bearing 140, and the magnet ring 120 may be assembled by an operator after shipment or may be assembled at shipment. Of course, in other embodiments of the present invention, the rolling bearing 140 may be installed in the installation hole through the installation frame, and the magnetic ring 120 may also be installed in the rolling bearing 140 through the installation frame.

Because the hardness of the magnetic ring 120 is not enough, the magnetic ring 120 may break when rotating and twisting, which affects the normal operation of the ring spinner, therefore, the utility model discloses a yarn twisting and winding device 100 improves the hardness of the magnetic ring 120 through the rolling bearing 140, so that the magnetic ring 120 can operate reliably. Optionally, the rolling bearing 140 is made of a ceramic material or a non-magnetic material. The rolling bearing 140 made of ceramic material can enhance the hardness of the magnetic ring 120 and ensure the reliable operation of the magnetic ring 120. The rolling bearing 140 made of a non-magnetic material may function as a magnetic shield. Of course, the rolling bearing 140 may also be coated with a wear resistant coating. Thus, the wear resistance of the magnetic ring 120 can be increased, the strength of the magnetic ring 120 is ensured, and the magnetic ring 120 is prevented from being damaged.

In an embodiment, the number of the yarn guiding members 130 is plural, the plural yarn guiding members 130 are disposed at the end of the magnetic ring 120, and the plural yarn guiding members 130 are distributed at intervals. The yarn guide 130 is located at the upper end of the magnetic ring 120 to facilitate the yarn to pass through. The number of the yarn guide members 130 is plural, and the operator can select one of the yarn guide members 130 for the yarn to pass through. The remaining yarn guides 130 serve as a backup. Moreover, the yarn guides 130 can be arranged at intervals, so that the yarn guide 130 which is not used is prevented from hooking the yarn. Illustratively, the number of the yarn guides 130 is two, and the two yarn guides 130 may be symmetrically arranged.

Optionally, the yarn guide 130 is fixed to the magnetic ring 120 by welding, so as to ensure that the yarn guide 130 is reliably fixed and is prevented from being separated from the magnetic ring 120 by the pulling force generated during the twisting operation. Of course, in other embodiments of the present invention, the yarn guide 130 may also be fixed to the magnetic ring 120 by fastening or the like. Further, the yarn guide 130 is a yarn guide hook or a yarn guide ring. Illustratively, the yarn guide 130 is a yarn guide ring through which the end of the yarn is secured to the bobbin 500 of the spindle 300 to prevent the yarn from escaping from the yarn guide 130. Of course, the yarn guide 130 may also be a yarn guide hook, and the yarn is hooked by the yarn guide hook, which is convenient to operate.

In an embodiment, the yarn twisting and winding device 100 further includes a hall element 150, and the hall element 150 is disposed on the stator magnet 110 and is used for detecting the position of the magnetic ring 120 to realize the reversing operation of the magnetic ring 120. It can be understood that the stator magnet 110 and the magnetic ring 120 of the yarn twisting and winding device 100 are matched with each other to be equivalent to a motor, and further to be equivalent to a dc brushless motor. After the hall element 150 is added to the stator magnet 110, the hall element 150 corresponds to a brush of a brush motor. The control host of the ring spinning machine, such as a CPU, etc., can know the current position of the magnet ring 120 by detecting the state of the hall element 150, and give which phase of coil should be energized next time. Further, the number of the hall elements 150 is plural, and the plurality of hall elements 150 are distributed at the edge of the mounting hole at intervals to detect the position of the magnetic ring 120. Illustratively, the number of the hall elements 150 is three, and the three hall elements 150 are evenly distributed. Optionally, the hall element 150 is a hall sensor.

In one embodiment, the magnetic ring 120, the stator magnet 110, and the rolling bearing 140 have the same height in the axial direction. Thus, after the magnetic ring 120, the stator magnet 110 and the rolling bearing 140 are assembled, the top surface is a plane, and the bottom surface is a plane, so as to avoid interference with other components.

In one embodiment, the yarn twisting and winding device 100 further includes a protective casing 160, and the protective casing 160 covers the stator magnet 110 and the magnetic ring 120. The protective casing 160 has a protective function, so that a user can prevent external objects from touching the magnetic ring 120, and the magnetic ring 120 can rotate stably. Alternatively, the shield case 160 may partially cover the stator magnet 110 and the magnetic ring 120. Of course, the protective casing 160 may completely cover the stator magnet 110 and the magnetic ring 120. Further, there is a predetermined distance between the stator magnet 110 and the magnetic ring 120 and the protective casing 160 to avoid interference.

In one embodiment, the stator magnet 110 has a fixing hole through which a screw passes to fix the stator magnet 110 to the ring plate 200. The fixing hole can be a through hole or a threaded hole, the threaded piece penetrates through the fixing hole and is installed on the ring plate 200, so that the stator magnet 110 is fixed on the ring plate 200, the position of the stator magnet 110 is prevented from moving, the installation position of the magnetic ring 120 is fixed, and the reliability of twisting operation is guaranteed.

Illustratively, the protective shell 160 completely encloses the stator magnet 110 and the magnetic ring 120, and the screw passes through the protective shell 160 and the stator magnet 110 to fix the protective shell 160 and the stator magnet 110 to the ring plate 200.

The utility model also provides a ring spinner, including drive arrangement 400, spindle 300, ring plate 200, elevating gear and the yarn twisting take-up device 100 of any above-mentioned embodiment. The spindle 300 is mounted on the driving device 400 and driven by the driving device 400 to rotate, the ring plate 200 is mounted on the lifting device, the yarn twisting and winding device 100 is mounted on the ring plate 200, and the lifting device drives the ring plate 200 and the yarn twisting and winding device 100 to move up and down. The ring spinning machine further includes a base 600, and the driving device 400 is installed at the base 600. The bobbin 500 is detachably sleeved on the spindle 300, the yarn after winding is wound through the bobbin 500, and after the bobbin 500 is fully wound with the yarn, the bobbin 500 can be detached, a new bobbin 500 is installed, and the yarn winding is continued. Alternatively, the driving means 400 includes a driving motor, which is installed at the base 600, and an output shaft of the driving motor is connected with the spindle 300.

The driving device 400 is a power source of the spindle 300, and drives the spindle 300 to drive the bobbin 500 to rotate. In the rotating process of the spindle 300, the lifting device drives the ring rail 200 to move up and down, the distance of the up and down movement is less than or equal to the height of the bobbin 500, and meanwhile, the stator magnet 110 drives the magnetic ring 120 to rotate, so that the yarn can be wound on the bobbin 500. After the yarn twisting and winding device 100 is adopted in the ring spinner, the magnetic ring 120 can twist in an active motion mode, abrasion between yarns and the magnetic ring 120 is reduced, frequent replacement of the magnetic ring 120 is not needed, the yield of the ring spinner can be ensured, the workload of operators is reduced, and the spinning efficiency is improved.

Optionally, the lifting device is disposed at a side of the spindle 300 and parallel to an axis of the spindle 300, so as to ensure that the lifting device drives the yarn twisting and winding device 100 to perform lifting motion along a height direction of the spindle 300 through the ring rail 200, thereby implementing twisting operation.

In one embodiment, the lifting device comprises a lifting motor, a screw rod connected with the lifting motor and a nut sleeved on the screw rod, the nut is connected with the ring plate 200, the lifting motor drives the screw rod to rotate and drives the nut to do lifting motion along the screw rod so as to drive the ring plate 200 to lift synchronously; or, the lifting device is a telescopic rod assembly, the end part of the telescopic rod assembly is provided with the ring plate 200, and the telescopic rod assembly can drive the ring plate 200 to synchronously lift when stretching. When the spindle spinning machine operates, the lifting motor rotates forward or reversely, the screw rod rotates forward and backward to enable the screw nut to do lifting motion along the screw rod, and then the screw nut drives the ring plate 200 to lift synchronously. At this time, the ring plate 200 can drive the stator magnet 110 and the magnetic ring 120 thereon to synchronously lift, so that the magnetic ring 120 winds the yarn around the bobbin 500.

In other embodiments of the present invention, the lifting device is a telescopic rod assembly, and the ring plate 200 is mounted at the end of the telescopic assembly. The telescopic rod component can do telescopic motion. When the telescopic rod component extends out, the ring plate 200 can be driven to ascend, and when the telescopic rod component retracts, the ring plate 200 can be driven to descend, so that the ring plate 200 can also be lifted, and the ring plate 200 can further drive the stator magnet 110 and the magnetic ring 120 thereon to lift. It can be understood that the telescopic rod assembly can be an electromagnet or an air cylinder and the like. Of course, the lifting device can also be other structures capable of realizing lifting movement.

Of course, in other embodiments of the present invention, the lifting device may also be a structure of a servo motor cooperating with the screw, or a structure of a servo motor cooperating with the cam, etc., so as to drive the twisting and winding of the yarn twisting and winding device 100.

The technical features of the embodiments described above can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A yarn twisting and winding device is characterized in that the yarn twisting and winding device automatically rotates to complete yarn twisting and winding and can be installed on a lifting device which can move up and down in a ring spinning machine to complete yarn moving, and the yarn twisting and winding device comprises:

a stator magnet having a mounting hole, mounted to the lifting device;

the magnetic ring is rotatably arranged in the mounting hole of the stator magnet; and

and the yarn guide piece is arranged on the magnetic ring and used for guiding yarn, twisting the yarn and winding the yarn on a spindle of the ring spinning machine.

2. The yarn twisting winding device according to claim 1, further comprising a rolling bearing, an outer ring of which is mounted to the mounting hole, and an inner ring of which is mounted to the magnetic ring.

3. The yarn twisting winding device according to claim 2, wherein the rolling bearing is in interference fit with the mounting hole;

the rolling bearing and the magnetic ring are in interference fit.

4. The yarn twisting winding device according to claim 2, wherein the rolling bearing is made of a ceramic material or a non-magnetic material;

or the rolling bearing is coated with a wear-resistant coating.

5. The yarn twisting winding device according to any one of claims 1 to 4, wherein the number of the yarn guide members is plural, the plural yarn guide members are arranged at the end of the magnetic ring, and the plural yarn guide members are symmetrically distributed at intervals;

the yarn guide piece is a yarn guide hook or a yarn guide ring.

6. The yarn twisting winding device according to any one of claims 1 to 4, further comprising a Hall element provided to the stator magnet for detecting a position of the magnetic ring.

7. The yarn twisting winding device according to any one of claims 1 to 4, further comprising a shield case covering the stator magnet and the magnetic ring.

8. The yarn twisting winding device according to any one of claims 1 to 4, wherein the stator magnet has a fixing hole through which a screw passes to fix the stator magnet to the lifting device.

9. A ring spinning machine comprising a driving device, a spindle, a lifting device, and a yarn twist winding device according to any one of claims 1 to 8;

the spindle is arranged on the driving device and driven by the driving device to rotate, the yarn twisting and winding device is arranged on the lifting device, and the lifting device drives the yarn twisting and winding device to do lifting motion.

10. A ring spinning machine according to claim 9, further comprising a ring plate, said yarn twisting winding device being mounted to said ring plate, said ring plate being mounted to said lifting device and being synchronously liftable therewith.

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