Straight pulling type magnetic damping twisting machine

Abstract

The utility model discloses a straight pull type magnetic damping twisting machine which comprises a static part for supporting a yarn cylinder and a rotating part for twisting yarns, the static part comprises a static base, a guide rod and a conductor disc are arranged on the upper side of the static base, the yarn cylinder and the conductor disc are connected and arranged outside the guide rod in a sleeving mode, and the edge of the conductor disc is located between two attraction magnetic poles. The edge of the conductor disc (made of aluminum and copper) cuts magnetic induction lines of a static magnetic field between attracted magnetic poles, reverse damping force is generated, the yarn bobbin rotates along with the yarn under the traction effect, the yarn is subjected to balanced stretching and tension, when power is cut off for stopping and traction of external power is lost, rotation with the damping force larger than inertia achieves immediate braking, and therefore the yarn bobbin is prevented from being damaged. The problems of yarn slipping and yarn entangling caused by inertia rotation are avoided, and the requirements of different yarn materials, diameters and twist degrees for tension are effectively met through magnetic damping force.

Description

Technical Field

[0001] This application belongs to the field of twisting machines, and particularly relates to a straight-pull type magnetic damping twisting machine. Background Technology

[0002] The intelligent one-step twisting machine, with its innovative design where the yarn bobbin remains stationary during the initial twisting stage and relies on the rotation of the spindle for unwinding, showcases the advancements in modern textile technology. However, this twisting machine faces challenges when integrated with some companies' existing traditional drawing machine winding systems (lacking twisting functionality). The yarn bundles wound by traditional drawing machines are often loose and of varying lengths. When entering the spindle holes of the intelligent twisting machine, uneven friction and tension between the yarns easily lead to knots, which not only reduces yarn quality but also frequently causes the twisting machine to stop, severely impacting production efficiency. To address this issue, companies have had to invest additionally in horizontal or vertical winding and twisting machines to ensure that the yarn bundles have the necessary twist and uniformity before entering the twisting machine, undoubtedly increasing operating costs and the complexity of the production process.

[0003] To address this challenge, patent application number 202322236009.X proposes a twisting machine. This design passively rotates the yarn bobbin under the pulling force of the yarn feed. As the yarn is pulled downwards, it naturally stretches, bringing the varying lengths of the yarn bundles to a near-uniform length, and then twisting is performed directly at the yarn bobbin. This design cleverly utilizes the natural stretching characteristics of the yarn, effectively solving the aforementioned problem and avoiding investment in additional equipment.

[0004] However, this design also faces new challenges: after the machine stops, the yarn tube continues to rotate for a period of time due to inertia, making it difficult to stop effectively and causing problems for subsequent yarn handling and winding. Therefore, further improvements to the existing structure to solve the problem of yarn tube inertial rotation after the machine stops have become the key to the continuous optimization of this design. Utility Model Content

[0005] This invention provides a straight-pull type magnetic damping twisting machine to at least solve or alleviate one or more technical problems in the prior art, or at least provide a beneficial alternative.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A straight-pull type magnetic damping twisting machine includes a stationary part supporting a yarn bobbin and a rotating part for twisting the yarn. The stationary part includes a stationary base, with a guide rod and a conductor disk on the upper side of the base. The yarn bobbin and the conductor disk are connected and sleeved around the guide rod. The edge of the conductor disk is located between two magnetic poles. Under the pull of the yarn, the yarn bobbin and the conductor disk rotate. The edge of the conductor disk cuts the magnetic lines of force between the magnetic poles, generating a damping force that opposes the rotation of the conductor disk in the opposite direction. At the end of the twisting process, the machine suppresses the continued rotation of the yarn bobbin due to inertia.

[0008] In the above structure, the yarn bobbin rotates under the pulling action, causing the yarn to be stretched and tensile, becoming tighter and more orderly. When the yarn bobbin rotates under the pulling action of the yarn, the conductor disc, such as aluminum or copper, rapidly cuts the static magnetic field. According to Faraday's law of electromagnetic induction and Lenz's law, electromagnetic damping force is generated, ensuring that the yarn bobbin can quickly slow down its speed after the stop command is issued. When the power is cut off and the machine stops, the damping force is greater than the inertial rotation when the pulling force is lost, achieving instant braking and avoiding problems such as slippage and tangled yarn caused by inertial rotation. When the machine starts, the pulling force of the roller is greater than the damping force, so the yarn bobbin rotates under constant tension. This effectively utilizes magnetic damping force to solve the tension requirements of different yarn materials, diameters, and twists.

[0009] In a preferred embodiment, the guide rod is perpendicular to the plane of the stationary base, the conductor disk is parallel to the plane of the stationary base, one end of the yarn bobbin is tightly connected to the conductor disk, and a yarn guide is provided on one side of the stationary base, parallel to the guide rod. One end of the yarn guide extends above the conductor disk, and the other end is located below the conductor disk. Magnetic poles are installed on the yarn guide, located above and below the conductor disk, respectively.

[0010] In a preferred embodiment, the yarn guide is provided with a first yarn guide hole and a second yarn guide hole, which are located on the upper and lower sides of the conductor disk, respectively, and the stationary base is provided with a third yarn guide hole, with the second yarn guide hole and the third yarn guide hole corresponding to each other.

[0011] In a preferred embodiment, the guide rod is parallel to the plane of the stationary base, the conductor disk is perpendicular to the plane of the stationary base, and a conductor disk is connected to each end of the yarn bobbin. A magnetic pole attracting each other is provided on the upper surface of the stationary base, with the magnetic pole attracting each other located on the left and right sides of the conductor disk, respectively.

[0012] In a preferred embodiment, two opposing L-shaped plates are provided on the upper surface of the stationary base. The L-shaped plates have U-shaped overlapping portions, and the two ends of the guide rod overlap the U-shaped overlapping portions on both sides.

[0013] In a preferred embodiment, the stationary base has a through hole at its center, through which the yarn is led out to the rotating part below.

[0014] In a preferred embodiment, a recessed hole is provided at the end of the yarn bobbin, and a protruding post is provided on the conductor disc. The protruding post is inserted into the recessed hole to achieve a detachable connection between the two.

[0015] In a preferred implementation, the attracting magnetic poles are installed on a "C"-shaped bracket, and the bracket is detachably connected to the yarn guiding member / stationary base.

[0016] In a preferred implementation, the rotating part includes a hollow spindle, and a bearing plate and a rotating yarn guiding disc are fixedly arranged on the hollow spindle. The diameter of the rotating yarn guiding disc is larger than the diameter of the stationary base, and yarn outlet holes communicating with the inside of the hollow spindle are formed on the side surface of the bearing plate.

[0017] In a preferred implementation, the stationary base is provided with a fixed magnet, and the fixed magnet is magnetically attracted to an external magnet of the same height, so as to keep the stationary base stationary. BRIEF DESCRIPTION OF THE DRAWINGS <(此处文本不完整,推测是

[0018] ,但按要求原样保留)

[0018] The drawings described herein are used to provide a further understanding of the present invention, and constitute a part of the present invention. The schematic embodiments and descriptions thereof of the present invention are used to explain the present application, and do not constitute an improper limitation to the present invention. In the drawings:

[0019] Figure 1 Schematically shows a structural diagram of a first embodiment of a direct-drawing type magnetic damping twisting machine according to the present application;

[0020] Figure 2 Schematically shows a structural diagram of a stationary part of a first embodiment of a direct-drawing type magnetic damping twisting machine according to the present application;

[0021] Figure 3 Schematically shows a sectional view of a stationary part of a first embodiment of a direct-drawing type magnetic damping twisting machine according to the present application;

[0022] Figure 4 Schematically shows a structural diagram of a second embodiment of a direct-drawing type magnetic damping twisting machine according to the present application;

[0023] Figure 5 Schematically shows an exploded structural diagram of a stationary part of a second embodiment of a direct-drawing type magnetic damping twisting machine according to the present application;

[0024] Figure 6 Schematically shows a three-dimensional structural diagram of a yarn bobbin according to the present application;

[0025] Figure 7 Schematically shows a structural diagram of a third embodiment of a direct-drawing type magnetic damping twisting machine according to the present application;

[0026] Figure 8 Schematically shows a three-dimensional structural diagram of a plastic magnet shell according to the present application;

[0027] Figure 9A schematic partial structural diagram of a fourth embodiment of this application is illustrated;

[0028] Label Explanation:

[0029] 1. Stationary base; 10. Guide rod; 11. Yarn guide; 110. First yarn guide hole; 111. Second yarn guide hole; 100. Third yarn guide hole; 2. Yarn bobbin; 20. Concave hole; 3. Conductor disc; 30. Protruding post; 4. Magnetic pole; 40. Bracket; 5. L-shaped plate; 50. U-shaped overlap; 6. Fixed magnet; 7. Hollow spindle; 70. Bearing disc; 700. Yarn outlet hole; 71. Rotating yarn guide disc; 8. Copper sleeve; 80. Plastic magnet shell; 81. Bearing sleeve; 82. Base disc; 9. Roller; 90. Magnetic pole bracket. Detailed Implementation

[0030] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit and scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0031] In the description of this utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In this utility model, unless otherwise expressly specified and limited, the first feature being "upper" or "lower" than the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral unit; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. However, specifying a direct connection indicates that the two main bodies at the connection point are not connected by an intermediate structure, but are simply connected to form a whole through a connecting structure. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0033] In this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0034] The present invention will now be described with reference to the accompanying drawings.

[0035] The specific solution adopted is as follows:

[0036] like Figure 1-6 As shown, this utility model provides a straight-pull type magnetic damping twisting machine, including a stationary part supporting the yarn bobbin and a rotating part for twisting the yarn. The stationary part includes a stationary base 1, with a guide rod 10 and a conductor disk 3 on the upper side of the stationary base 1. The yarn bobbin 2 and the conductor disk 3 are connected and sleeved on the guide rod 10. The edge of the conductor disk 3 is located between two magnetic poles 4. Under the pull of the yarn, the yarn bobbin 2 and the conductor disk 3 rotate. The edge of the conductor disk 3 cuts the magnetic lines of force between the magnetic poles 4 to generate a damping force that resists the rotation of the conductor disk 3. When the twisting process ends, the continued rotation of the yarn bobbin 2 due to inertia is suppressed.

[0037] By employing the straight-pull type magnetic damping twisting machine of this application, the yarn bobbin 2 rotates under the pulling action, causing the yarn to be stretched and tensile, becoming tighter and more orderly. This step optimizes the physical state of the yarn, providing a good foundation for subsequent rotational twisting. Therefore, no additional pre-twisting equipment is needed. When the yarn bobbin 2 rotates under the yarn pulling action, the conductor disk 3 (e.g., aluminum or copper) rapidly cuts the static magnetic field. According to Faraday's law of electromagnetic induction and Lenz's law, an electromagnetic damping force is generated, ensuring that the yarn bobbin 2 can stop quickly after the stop command is issued, avoiding slippage and tangling problems caused by inertial rotation. During operation, the magnetic damping force not only serves as a braking force but also as a pulling force for yarn pulling. When starting, the pulling force of the roller is greater than the damping force, so the yarn bobbin rotates under constant tension. The magnetic damping force is effectively used to solve the tension requirements of different yarn materials, diameters, and twists.

[0038] Since the electromagnetic damping force can be adjusted as needed, it can effectively maintain the stability of yarn tension. By adjusting the distance between the magnetic poles 4, the magnetic field strength, and the material and size of the conductor disk 3, the magnitude of the electromagnetic damping force can be controlled, thereby adapting to the tension requirements of different yarn materials, diameters, and twists.

[0039] In addition, the electromagnetic damping braking system does not require mechanical contact, avoiding the wear and heat accumulation caused by friction in traditional braking methods, thus extending the service life of the equipment.

[0040] See Figure 1 and Figure 4The rotating part includes a hollow spindle 7, a bearing plate 70 and a rotating yarn guide plate 71 fixed on the hollow spindle 7. The diameter of the rotating yarn guide plate 71 is larger than the diameter of the stationary base 1. The bearing plate 70 has a yarn outlet hole 700 on its side that communicates with the inside of the hollow spindle 7.

[0041] In a preferred embodiment of this application, the stationary base 1 is provided with a fixed magnet 6, which is magnetically attracted to an external magnet of the same height, so that the stationary base 1 remains stationary.

[0042] See Figure 1 , Figure 2 and Figure 3 In a preferred embodiment of this application, the guide rod 10 is perpendicular to the plane of the stationary base 1, and the central through cavity of the yarn bobbin 2 is inserted into the outside of the vertical guide rod 10 to ensure that the yarn bobbin 2 can rotate stably around the guide rod 10. The starting end of the yarn passes through the first yarn guide hole 110, then through the first yarn guide hole 110 into the second yarn guide hole 111, then through the second yarn guide hole 111 into the third yarn guide hole 100, then into the vertical docking channel and then into the inner cavity of the hollow spindle 7; it then enters the yarn outlet hole 700 laterally through the side hole of the hollow spindle 7, and is introduced into the subsequent mechanism by the roller.

[0043] One end of the yarn bobbin 2 is tightly connected to the conductor disk 3. A bearing is connected below the conductor disk 3 and is mounted on the guide rod 10, allowing the conductor disk 3 to rotate freely relative to the guide rod 10, reducing frictional resistance and improving rotational efficiency. The yarn guide 11 is arranged parallel to the guide rod 10, with one end extending above the conductor disk 3 and the other end located below the conductor disk 3, forming a yarn guiding channel. Magnetic poles 4 are mounted on the yarn guide 11, located above and below the conductor disk 3, respectively.

[0044] When the yarn is guided through the yarn bobbin 2 and the yarn guide 11, the yarn bobbin 2 and the conductor disk 3 rotate around the guide rod 10 due to the tension of the yarn bundle. During rotation, the conductor disk 3 cuts magnetic field lines (i.e., the magnetic field generated by the magnetic pole 4), generating electromagnetic damping force according to Faraday's law of electromagnetic induction. Through the close cooperation between the yarn guide 11 and the yarn bobbin 2, the orderly guidance of the yarn is achieved, improving production efficiency in textile or related processes. The entire device has a compact structure, occupies a small area, and is easy to integrate into textile machinery or other related equipment. The device has a simple and clear structure, is easy to maintain and repair, and reduces operating costs.

[0045] Furthermore, by adjusting the position, strength, and number of magnetic poles 4, as well as the material and shape of conductor disk 3, the generation and intensity of electromagnetic effects can be controlled to meet the needs of different application scenarios.

[0046] See Figure 7 and Figure 8In another feasible embodiment, the guide rod 10 is also perpendicular to the plane of the stationary base 1. The central through cavity of the yarn bobbin 2 is inserted into the outside of the vertical guide rod 10, and the threading method is the same. The difference is that the magnetic poles on the yarn guide 11 are removed, the conductor disk 3 is removed, leaving only the bearing sleeve 81 on the outside of the guide rod 10. A copper sleeve 8 is provided outside the bearing sleeve 81. A base disk 82 is provided on the lower side of the stationary base, and the yarn guide 11 is located below the base disk 82. A plastic magnet shell 80 is connected to the base disk 82 by bolts. The iron shell 80 is provided with a connecting hole. One end of the bolt rod is connected to the base plate, and the other end is connected to the connecting hole, so that the plastic magnet shell 80 is suspended and avoids the third yarn guide hole. The plastic magnet box 80 is provided with magnetic poles 4 arranged adjacent to each other with S pole and N pole. The copper sleeve at the bottom of the bearing sleeve 81 is inserted into the insertion hole in the middle of the plastic magnet shell 80. When the bearing sleeve 81 and the yarn bobbin on it rotate, the copper sleeve quickly cuts the static magnetic field and generates electromagnetic damping force, ensuring that the yarn bobbin 2 can stop quickly after the stop command is issued, avoiding the problems of slippage and tangled yarn caused by inertial rotation.

[0047] See Figure 4 , Figure 5 and Figure 6 The guide rod 10 is set parallel to the plane of the stationary base 1, and the conductor disk 3 is perpendicular to the plane of the stationary base 1. A conductor disk 3 is connected to each end of the yarn bobbin 2. When the yarn is pulled from the yarn bobbin 2, it goes down from the central through hole of the stationary base 1 to the inner cavity of the hollow spindle 7, and then enters the yarn outlet 700 laterally through the side hole of the hollow spindle 7, and is introduced into the subsequent mechanism by the roller.

[0048] When the yarn bobbin 2 rotates, both conductor disks 3 also rotate. The upper surface of the stationary base 1 is provided with multiple sets of attracting magnetic poles 4, located on the left and right sides of the conductor disks 3. Because there are two conductor disks 3, each with attracting magnetic poles 4 on both sides, when the conductor disks 3 rotate, they cut more magnetic field lines, thus generating a larger induced current. According to Lenz's law, the induced current generates a magnetic field opposite to the original magnetic field, thus resisting the rotation of the conductor disks 3, i.e., generating a larger magnetic damping force. This larger magnetic damping force helps stabilize the rotational speed of the yarn bobbin 2, reducing yarn tension changes caused by speed fluctuations, thereby improving the stability and consistency of yarn processing, and providing a better inertial braking effect.

[0049] Two opposite L-shaped plates 5 are carefully arranged on the stationary base 1. These L-shaped plates 5 are designed with U-shaped overlapping parts 50, providing a stable fixing and supporting structure for the guide rod 10. The two ends of the guide rod 10 are cleverly overlapped on the U-shaped overlapping parts 50 on both sides, ensuring the stable installation of the guide rod 10. Under such a design, the end of the guide rod 10 can smoothly rotate within the smooth U-shaped overlapping part 50, allowing it to rotate together with the yarn bobbin 2. Another implementation method is that bearings are arranged in the through cavity inside the yarn bobbin 2, enabling the yarn bobbin 2 to freely rotate relative to the guide rod 10. Both of these structures ensure that the yarn bobbin 2 can rotate smoothly and efficiently when subjected to external forces (such as yarn pulling).

[0050] As a preferred embodiment of the present application, refer to Figure 5 and Figure 6 , a concave hole 20 is provided at the end of the yarn bobbin 2, and the conductor disk 3 is provided with a convex column 30. The convex column 30 is inserted into the concave hole 20 to achieve the detachable connection between the two.

[0051] The user only needs to align the convex column 30 of the conductor disk 3 with the concave hole 20 of the yarn bobbin 2 and then insert it, without the need for additional tools or complex operation steps. Similarly, when disassembling, only the convex column 30 needs to be pulled out from the concave hole 20, which is very convenient.

[0052] As a preferred embodiment of the present application, the attracting magnetic poles 4 are installed on the "C"-shaped bracket 40, and the bracket 40 is detachably connected to the yarn guiding member 11 / stationary base 1.

[0053] The connection between the bracket 40 and the yarn guiding member 11 (or stationary base 1) can be easily disassembled and reinstalled, facilitating maintenance, component replacement or adjustment of the device configuration.

[0054] Refer to Figure 9 ,in another achievable way, for a yarn bobbin that is thick in the middle and thin at both ends, copper tubes or copper sleeves can be sleeved on its two thin ends. A magnetic pole bracket is arranged on the L-shaped plate, and two attracting magnetic poles are arranged on both sides at the height where the copper sleeve or copper tube is located through the magnetic pole bracket. The two ends of the yarn bobbin are placed on two rollers arranged on the L-shaped plate and can rotate under the pulling of the yarn. In this way, when running, the copper tubes at both ends cut the magnetic induction lines between the magnets NS, and the reverse damping force generated by the formed eddy current is utilized to achieve effective braking of the parked yarn and increase the tension of the yarn. The threading method is the same as that in Figure 4 the embodiment. The difference is that only one yarn guiding disk with symmetric wing fins is arranged on the upper side of the bearing plate in this implementation method, and yarn guiding holes are opened on the wing fins, with a simpler structure. Three S-pole magnets are distributed in a triangular shape under the stationary base and attract the corresponding three N-pole magnets arranged on the machine table at the lower end of the rotor to achieve the fixation of the stationary disk.

[0055] What is not described in this utility model can be realized by adopting or referring to the existing technology.

[0056] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A straight-pull type magnetic damping twisting machine, comprising a stationary part supporting a yarn bobbin and a rotating part for twisting the yarn, characterized in that, The stationary part includes a stationary base. A guide rod and a conductor disk are provided on the upper side of the stationary base. The yarn bobbin and the conductor disk are connected and sleeved outside the guide rod. The edge of the conductor disk is located between two attracting magnetic poles. Under the traction of the yarn, the yarn bobbin and the conductor disk rotate. The edge of the conductor disk cuts the magnetic induction lines between the attracting magnetic poles to generate a damping force in the opposite direction to the rotation direction of the conductor disk, and at the end of the twisting process, it inhibits the continuous rotation of the yarn bobbin due to inertia.

2. The straight-pull type magnetic damping twisting machine according to claim 1, characterized in that, The guide rod is perpendicular to the plane of the stationary base, the conductor disk is parallel to the plane of the stationary base, one end of the yarn bobbin is closely connected to the conductor disk. On one side of the stationary base, a yarn guide is provided parallel to the guide rod. One end of the yarn guide extends above the conductor disk, and the other end is located below the conductor disk. The magnetic poles are installed on the yarn guide and are respectively located above and below the conductor disk.

3. The straight-pull type magnetic damping twisting machine according to claim 2, characterized in that, The yarn guide is provided with a first yarn guide hole and a second yarn guide hole, which are respectively located on the upper and lower sides of the conductor disk. The stationary base is provided with a third yarn guide hole, and the second yarn guide hole corresponds to the third yarn guide hole.

4. The straight-pull type magnetic damping twisting machine according to claim 1, characterized in that, The guide rod is parallel to the plane of the stationary base, the conductor disk is perpendicular to the plane of the stationary base, and both ends of the yarn bobbin are respectively connected to a conductor disk. Attracting magnetic poles are provided on the upper surface of the stationary base and are respectively located on the left and right sides of the conductor disk.

5. The straight-pull type magnetic damping twisting machine according to claim 4, characterized in that, Two opposite L-shaped plates are provided on the upper surface of the stationary base. The L-shaped plates are provided with U-shaped overlapping parts, and both ends of the guide rod are overlapped on the U-shaped overlapping parts on both sides.

6. The straight-pull type magnetic damping twisting machine according to claim 4, characterized in that, A through hole is provided at the center of the stationary base, and the yarn is led out through the through hole to the lower rotating part.

7. The straight-pull type magnetic damping twisting machine according to claim 2 or 3, characterized in that, A concave hole is provided at the end of the yarn bobbin, and the conductor disk is provided with a convex column. The convex column is inserted into the concave hole to achieve detachable connection between the two.

8. The straight-pull type magnetic damping twisting machine according to claim 2 or 3, characterized in that, The attracting magnetic poles are installed on a "C"-shaped bracket, and the bracket is detachably connected to the yarn guide / stationary base.

9. The straight-pull type magnetic damping twisting machine according to claim 1, characterized in that, The rotating part includes a hollow spindle. A bearing disk and a rotating yarn guide disk are fixedly provided on the hollow spindle. The diameter of the rotating yarn guide disk is larger than the diameter of the stationary base. A yarn outlet hole communicating with the inside of the hollow spindle is provided on the side surface of the bearing disk.

10. The straight-pull type magnetic damping twisting machine according to claim 1, characterized in that, The stationary base is provided with a fixed magnet, and the fixed magnet is magnetically attracted to an external magnet of the same height, so that the stationary base remains stationary.

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