Filament tension stabilizing device for core-spun yarn preparation

Abstract

The present application relates to a filament tension stabilizing device for core yarn preparation, comprising a conveying roller, a tension compensation assembly and an auxiliary roller; wherein the tension compensation assembly is located on the conveying roller, and the auxiliary roller cooperates with the tension compensation assembly to compress the thread body around the tension compensation assembly; in normal state, the tension compensation assembly and the conveying roller keep fixed position, the conveying roller drives the tension compensation assembly and the auxiliary roller to rotate to realize thread body conveying; in tension compensation state, the tension compensation assembly and the conveying roller rotate relatively to stabilize the thread body tension. In the present application, in normal state, the tension compensation assembly rotates synchronously with the conveying roller, and the relative position of the conveying roller and the tension compensation assembly is fixed; when the tension of the thread body on the conveying roller is abnormal, the tension compensation assembly rotates relatively with the conveying roller according to the abnormal condition to restore the tension of the thread body again, so as to realize the tension stability of the thread body in the yarn feeding process.

Description

Technical Field

[0001] This invention relates to the field of spinning equipment technology, and in particular to a filament tension stabilizing device for core-spun yarn preparation. Background Technology

[0002] Core-spun yarn is a type of fabric material, typically consisting of polyester filaments as the inner core, covered by a cover yarn. When wrapping the inner core, the tension of the filaments should be uniform and moderate. Excessive tension can cause the inner core to deform, affecting the quality of the finished product; insufficient tension may cause wrinkles or loosening of the outer cover yarn, impacting not only the quality of the finished product but also its appearance and dyeing results.

[0003] Through long-term experience, it has been found that cores of different materials and covering yarns of different materials have an optimal tension range. Core-spun yarns produced under this tension ratio have the best quality in mass production and a relatively low probability of yarn defects.

[0004] Although tension control technology is commonly used in the current core-spun yarn production process, it is not flexible in controlling the tension of filaments or covered yarns. Tension adjustments are all based on manual control of parameters set in the production process. Over a long period of production, it is difficult to ensure that the tension is always within the optimal tension range, resulting in the relatively lower quality of core-spun yarn produced later in the production batch. Summary of the Invention

[0005] This invention addresses the shortcomings of existing technologies by providing a filament tension stabilizing device for core-spun yarn preparation. The specific technical solution is as follows:

[0006] A filament tension stabilizing device for core-spun yarn preparation includes:

[0007] Conveyor rollers;

[0008] Tension compensation components; and

[0009] Auxiliary rollers;

[0010] The tension compensation component is located on the conveying roller, and the auxiliary roller cooperates with the tension compensation component to press the thread that passes through the tension compensation component.

[0011] Under normal conditions, the tension compensation component and the conveying roller remain in a fixed position, and the conveying roller drives the tension compensation component and the auxiliary roller to rotate to realize the conveying of the line.

[0012] During tension compensation, the tension compensation component rotates relative to the conveyor roller to stabilize the tension of the production line.

[0013] Traditionally, the conveyor roller works in conjunction with another conveyor roller to tension the yarn. The yarn is tightened by adjusting the force exerted on it by the conveyor roller. Since multiple conveyor rollers are installed on the shaft that drives the conveyor roller to rotate, when the tension of one yarn becomes abnormal or drops slightly, the power transmission of the shaft is usually not stopped, thus affecting the feeding of other conveyor rollers. This can lead to abnormal core-spun yarn quality corresponding to the conveyor roller with abnormal tension.

[0014] To address the issue of abnormal tension on the conveyor roller, allowing for fine-tuning of the yarn tension without affecting the shaft's transmission, a tension compensation component is added to the conventional conveyor roller. During yarn laying, the yarn is wound around this component and, in conjunction with an auxiliary roller, pressed against it to prevent slippage. Normally, the tension compensation component rotates synchronously with the conveyor roller, and their relative positions remain fixed. When abnormal tension occurs on the yarn, the tension compensation component rotates relative to the conveyor roller to restore the yarn tension, thus stabilizing the yarn tension during the feeding process.

[0015] As an improvement to the above technical solution, the cross-section of the conveying rollers is I-shaped, and the tension compensation component is sleeved in the placement groove at the middle position of the conveying roller and is in clearance fit with the inner wall of the placement groove.

[0016] The conveying roller has a torque sensor on one end, and the conveying roller is connected to the drive motor through the torque sensor.

[0017] The conveying roller is an improvement on a conventional roller. The enlarged placement groove in the middle is used to house the tension compensation component, so that the conveying roller can stably drive the tension compensation component to rotate. The drive motor is used to drive the conveying roller to rotate and feed the yarn. The torque sensor is mainly used to monitor the tension of the yarn on the conveying roller in real time, and to determine whether the tension is abnormal based on the comparison between the measured value and the set value. The tension compensation component will then perform compensation action based on the abnormality.

[0018] As an improvement to the above technical solution, the tension compensation component includes at least:

[0019] An annular housing has an annular groove on its outer circumference for limiting the movement of the wire body. The annular housing is fitted onto the self-locking motor to form the outer shell of the self-locking motor.

[0020] The self-locking motor can rotate after being powered on. When it rotates, it drives the annular shell that constitutes the outer shell of the self-locking motor to rotate. The wire is directly wound around the annular groove. The wire feeding action is completed as the annular shell rotates. The annular groove can ensure that the wire path is fixed during the rotation of the annular shell and is not easy to fall off the annular shell.

[0021] As an improvement to the above technical solution, the self-locking motor includes:

[0022] The shaft formed by the columnar portion within the placement groove;

[0023] The winding sleeved on the shaft; and

[0024] An electromagnetic starter used to regulate the operating state of the winding;

[0025] The winding and the electromagnetic starter are both located inside the annular housing. The winding is rotatably coupled with the shaft, and the electromagnetic starter is electrically connected to the winding.

[0026] With the columnar part in the placement slot as the axis, when the self-locking motor rotates, the winding rotates around the axis, thereby driving the annular housing to rotate. The electromagnetic starter is used to control the forward and reverse rotation of the winding.

[0027] As an improvement to the above technical solution, the torque sensor is connected to the self-locking motor signal;

[0028] The tension compensation component rotates in the opposite direction to the conveyor roller, thus increasing the tension of the production line.

[0029] When the tension compensation component is aligned with the rotation direction of the conveyor roller, the tension of the production line decreases.

[0030] The forward rotation is the same as the rotation direction of the conveyor roller, and the reverse rotation is the opposite to the rotation direction of the conveyor roller. When the tension compensation component rotates forward, the tension of the production line decreases; when the tension compensation component rotates in reverse, the tension of the production line increases. Therefore, if an abnormal tension occurs when the conveyor roller rotates, the forward and reverse rotation of the tension compensation component is used to compensate and adjust the tension, thereby maintaining stable tension on the production line.

[0031] As an improvement to the above technical solution, annular conductive sliders are embedded on both sides of the annular groove, and the conductive sliders are connected to the self-locking motor through a power supply circuit.

[0032] The auxiliary roller has annular conductive contacts embedded on both sides of its side walls. When the annular housing and the auxiliary roller rotate synchronously, the conductive slider remains in contact with the corresponding conductive contact.

[0033] To ensure the stable rotation of the self-locking motor, annular conductive slides are embedded on both sides of the annular groove. When the auxiliary roller engages with the annular housing, it rotates synchronously with the annular housing. At this time, the conductive slides will always maintain contact with the conductive contacts, thereby ensuring a stable power supply to the self-locking motor through the stable contact between the conductive slides and the conductive contacts.

[0034] As an improvement to the above technical solution, the annular groove is V-shaped, and the conductive slider is embedded in the inclined sidewall of the annular groove.

[0035] The conductive contact is embedded in the side wall of the auxiliary roller near the edge;

[0036] Both the conductive slider and the conductive contact are tapered structures. When the conductive slider contacts the corresponding conductive contact, the contact portion is a straight line.

[0037] The annular groove is set in a V-shape, so that the position of the line is restricted to the bottom of the annular groove. The conductive slider is then embedded in the inclined sidewall of the annular groove. When the auxiliary roller cooperates with the annular shell, there is near static friction between the conductive slider and the conductive contact of the conical structure. Relatively speaking, when the auxiliary roller and the annular shell rotate, the wear between the conductive slider and the conductive contact is less, which can achieve a long service life. Moreover, the contact part can be regarded as a straight line, which can ensure stable electrical connection.

[0038] As an improvement to the above technical solution, the auxiliary roller is mounted on the base via a shaft, the shaft being a hollow structure, and the electrical connector on the base is electrically connected to the conductive contacts via a power transmission circuit.

[0039] The power transmission circuit has an electrical rotary joint, and the auxiliary roller is rotatably connected to the shaft through the electrical rotary joint.

[0040] The auxiliary roller is mounted on the shaft, and its mounting position is fixed by the base. The shaft is designed as a hollow structure to facilitate the arrangement of power transmission lines. The electrical connector on the base is electrically connected to conductive contacts via the power transmission lines. To ensure a stable electrical connection even during the rotation of the auxiliary roller, an electrical rotary joint is provided at the connection between the shaft and the auxiliary roller, ensuring a stable power transmission line connection even when the auxiliary roller is rotating.

[0041] As an improvement to the above technical solution, both the base and the drive motor are mounted on a fixed seat;

[0042] The fixed base has a limiting slide rail that mates with the base, and the base is fixed to the fixed base by bolts.

[0043] In order to integrate the auxiliary roller and the conveying roller together, the base and the drive motor are both mounted on the fixed seat, and the two pairs of positions of the base behind the fixed seat are limited by the limiting slide rail to ensure that the auxiliary roller corresponds one-to-one with the tension compensation component. The base and the fixed seat are further secured by bolts.

[0044] As an improvement to the above technical solution, the drive motor drives at least two conveying rollers to rotate, and at least two auxiliary rollers are arranged on the shaft, with the conveying rollers and auxiliary rollers corresponding one-to-one.

[0045] Since multiple yarns need to be conveyed simultaneously during the production of core-spun yarn, the drive motor drives at least two conveying rollers to rotate at the same time. Similarly, at least two auxiliary rollers are arranged on the shaft. The conveying rollers and auxiliary rollers correspond one-to-one to achieve clamping and limiting of the yarn and stable yarn conveying.

[0046] The beneficial effects of this invention are:

[0047] 1. In this invention, when the tension of the conveying roller on the yarn body is abnormal, the tension compensation component rotates relative to the conveying roller according to the abnormal situation, and restores the tension of the yarn body again, thereby achieving tension stability of the yarn body during the yarn feeding process.

[0048] 2. The forward rotation direction is the same as the rotation direction of the conveyor roller, and the reverse rotation direction is the opposite to the rotation direction of the conveyor roller. When the tension compensation component rotates forward, the tension of the production line decreases; when the tension compensation component rotates in reverse, the tension of the production line increases. Therefore, if an abnormal tension occurs when the conveyor roller rotates, the tension is compensated and adjusted by rotating the tension compensation component in both forward and reverse directions to maintain stable tension on the production line.

[0049] 3. In order to ensure the stable rotation of the self-locking motor, annular conductive slides are embedded on both sides of the annular groove. When the auxiliary roller cooperates with the annular shell, it will rotate synchronously with the annular shell. At this time, the conductive slides will always keep in contact with the conductive contacts, thereby ensuring a stable power supply to the self-locking motor through the stable contact between the conductive slides and the conductive contacts. Attached Figure Description

[0050] Figure 1 A perspective view of a filament tension stabilizing device for core-spun yarn preparation;

[0051] Figure 2 Top view of a filament tension stabilizing device for core-spun yarn preparation;

[0052] Figure 3 for Figure 2 Sectional view at point AA;

[0053] Figure 4 A bottom view of a filament tension stabilizing device for core-spun yarn preparation.

[0054] Reference numerals: 100, conveying roller; 110, placement groove; 111, columnar part; 120, torque sensor; 130, drive motor; 200, tension compensation assembly; 210, annular housing; 220, annular groove; 221, conductive slide plate; 230, self-locking motor; 231, winding; 232, electromagnetic starter; 300, auxiliary roller; 310, conductive contact; 320, shaft; 330, base; 340, electrical connector; 350, electrical rotary joint; 400, fixed seat; 410, limit slide rail. Detailed Implementation

[0055] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0056] like Figures 1-4 As shown, Figure 1 A perspective view of a filament tension stabilizing device for core-spun yarn preparation; Figure 2 Top view of a filament tension stabilizing device for core-spun yarn preparation; Figure 3 for Figure 2 Sectional view at point AA; Figure 4 A bottom view of a filament tension stabilizing device for core-spun yarn preparation.

[0057] Traditionally, the conveyor roller 100 works in conjunction with another conveyor roller 100 to tension the yarn. The yarn is tightened by adjusting the force exerted on it by the conveyor roller 100. Since multiple conveyor rollers 100 are installed on the shaft that drives the conveyor roller 100 to rotate, when the tension of one yarn becomes abnormal or drops slightly, the power transmission of the shaft usually does not stop, thus affecting the yarn feeding of other conveyor rollers 100. This can lead to abnormal core-spun yarn quality corresponding to the conveyor roller 100 with abnormal tension.

[0058] To solve the above technical problems, a filament tension stabilization device for core-spun yarn preparation is proposed, including a conveying roller 100, a tension compensation component 200, and an auxiliary roller 300.

[0059] Among them, the tension compensation component 200 is located on the conveying roller 100, and the auxiliary roller 300 cooperates with the tension compensation component 200 to press the line passing through the tension compensation component 200.

[0060] Under normal conditions, the tension compensation component 200 and the conveyor roller 100 remain in a fixed position, and the conveyor roller 100 drives the tension compensation component 200 and the auxiliary roller 300 to rotate to realize the conveying of the line.

[0061] During tension compensation, the tension compensation component 200 rotates relative to the conveyor roller 100 to stabilize the tension of the production line.

[0062] Specifically, to address the issue of abnormal tension in the conveyor roller 100, allowing it to fine-tune the tension of the yarn without affecting the shaft's transmission, a tension compensation component 200 is added to the conventional conveyor roller 100. During yarn laying, the yarn is wound around the tension compensation component 200 and, in conjunction with the auxiliary roller 300, pressed against it to prevent slippage. Under normal conditions, the tension compensation component 200 rotates synchronously with the conveyor roller 100, and the relative positions of the conveyor roller 100 and the tension compensation component 200 are fixed. When abnormal tension occurs in the yarn caused by the conveyor roller 100, the tension compensation component 200 rotates relative to the conveyor roller 100 according to the abnormal situation, restoring the tension of the yarn and thus achieving tension stability during the yarn feeding process.

[0063] See Figure 3 In one embodiment, the cross-section of the conveying roller 100 is I-shaped, and the tension compensation component 200 is sleeved in the placement groove 110 at the middle position of the conveying roller 100 and is in clearance fit with the inner wall of the placement groove 110.

[0064] The conveyor roller 100 has a torque sensor 120 on one end, and the conveyor roller 100 is connected to the drive motor 130 through the torque sensor 120.

[0065] Specifically, the conveyor roller 100 is an improvement on a conventional roller. The enlarged placement groove 110 in the middle position is used to place the tension compensation component 200, so that the conveyor roller 100 can stably drive the tension compensation component 200 to rotate. The drive motor 130 is used to drive the conveyor roller 100 to rotate to feed the yarn. The torque sensor 120 is mainly used to monitor the tension of the yarn on the yarn body in real time when the conveyor roller 100 feeds the yarn, and to determine whether the tension is abnormal based on the comparison between the measured value and the set value. The tension compensation component 200 will then perform compensation action based on the abnormality.

[0066] Preferably, both the conveyor roller 100 and the auxiliary roller 300 are made of insulating materials, such as insulating rubber.

[0067] See also Figure 3 In one embodiment, the tension compensation component 200 includes:

[0068] The annular housing 210 has an annular groove 220 on its outer circumference for limiting the movement of the line body. The annular housing 210 is fitted onto the self-locking motor 230 to form the outer shell of the self-locking motor 230.

[0069] Specifically, the self-locking motor 230 can rotate after being powered on. When it rotates, it drives the annular housing 210, which constitutes the outer shell of the self-locking motor 230, to rotate. The wire is directly wound on the annular groove 220. The wire feeding action is completed as the annular housing 210 rotates. The annular groove 220 can ensure that the wire path is fixed during the rotation of the annular housing 210 and is not easy to fall off the annular housing 210.

[0070] Preferably, the annular shell 210 is made of an insulating material, such as insulating rubber.

[0071] See also Figure 3 In one embodiment, the self-locking motor 230 includes:

[0072] A shaft formed by the columnar portion 111 within the placement groove 110;

[0073] The winding 231 sleeved on the shaft; and

[0074] Electromagnetic starter 232 is used to regulate the operating state of winding 231;

[0075] The winding 231 and the electromagnetic starter 232 are both located inside the annular housing 210. The winding 231 is rotatably coupled with the shaft, and the electromagnetic starter 232 is electrically connected to the winding 231.

[0076] Specifically, the columnar part 111 in the placement slot 110 forms an axis, so that when the self-locking motor 230 rotates, the winding 231 rotates around the axis, thereby driving the annular housing 210 to rotate. The electromagnetic starter 232 is used to control the forward and reverse rotation of the winding 231.

[0077] The annular housing 210 is detachably fixedly connected to the winding 231 and the electromagnetic starter 232. When the annular housing 210 is not suitable for the wire, or when it is damaged, the annular housing 210 can be removed.

[0078] See also Figure 3 In one embodiment, the torque sensor 120 is signal-connected to the self-locking motor 230;

[0079] The tension compensation component 200 rotates in the opposite direction to the conveyor roller 100, thus increasing the tension of the conveyor line;

[0080] When the tension compensation component 200 rotates in the same direction as the conveyor roller 100, the tension of the conveyor line decreases.

[0081] Specifically, the forward rotation is in the same direction as the rotation of the conveyor roller 100, and the reverse rotation is in the opposite direction. When the tension compensation component 200 rotates forward, the tension of the production line decreases; when the tension compensation component 200 rotates in reverse, the tension of the production line increases. Therefore, if an abnormal tension occurs when the conveyor roller 100 rotates, the tension is compensated and adjusted by rotating the tension compensation component 200 in both forward and reverse directions to maintain stable tension on the production line.

[0082] See Figures 2-4 In one embodiment, annular conductive sliders 221 with annular structure are embedded on both sides of the annular groove 220, and the conductive sliders 221 are connected to the self-locking motor 230 through a power supply circuit.

[0083] The auxiliary roller 300 has annular conductive contacts 310 embedded on both sides of its side walls. When the annular housing 210 and the auxiliary roller 300 rotate synchronously, the conductive slider 221 keeps in contact with the corresponding conductive contact 310.

[0084] Specifically, in order to ensure the stable rotation of the self-locking motor 230, annular conductive slides 221 are embedded on both sides of the annular groove 220. When the auxiliary roller 300 cooperates with the annular housing 210, it will rotate synchronously with the annular housing 210. At this time, the conductive slides 221 will always maintain contact with the conductive contacts 310, thereby ensuring a stable power supply to the self-locking motor 230 through the stable contact between the conductive slides 221 and the conductive contacts 310.

[0085] Preferably, both the conductive slider 221 and the conductive contact 310 are made of conductors, such as copper or iron.

[0086] See also Figures 2-4 In one embodiment, the annular groove 220 is V-shaped, and the conductive slider 221 is embedded in the inclined sidewall of the annular groove 220.

[0087] The conductive contact 310 is embedded in the side wall of the auxiliary roller 300 near the edge;

[0088] Both the conductive slider 221 and the conductive contact 310 are tapered structures. When the conductive slider 221 contacts the corresponding conductive contact 310, the contact portion is a straight line.

[0089] Specifically, the annular groove 220 is set in a V-shape, so that the position of the line is restricted to the bottom of the annular groove 220. Then, the conductive slider 221 is embedded in the inclined side wall of the annular groove 220. When the auxiliary roller 300 cooperates with the annular housing 210, there is near static friction between the conical conductive slider 221 and the conductive contact 310. Relatively speaking, when the auxiliary roller 300 and the annular housing 210 rotate, the wear between the conductive slider 221 and the conductive contact 310 is less, which can achieve a long service life. Moreover, the contact part can be regarded as a straight line, that is, the contact surface between the conductive slider 221 and the conductive contact 310 is sufficient, which can ensure stable electrical connection.

[0090] See also Figures 2-4 In one embodiment, the auxiliary roller 300 is mounted on the base 330 via a shaft 320, the shaft 320 being a hollow structure, and the electrical connector 340 on the base 330 is electrically connected to the conductive contact 310 via a power transmission circuit.

[0091] The power transmission circuit has an electrical rotary joint 350, and the auxiliary roller 300 is rotatably connected to the shaft 320 through the electrical rotary joint 350.

[0092] Specifically, the auxiliary roller 300 is mounted on the shaft 320, and the mounting position of the auxiliary roller 300 is fixed by the base 330. The shaft 320 is designed as a hollow structure to facilitate the arrangement of the power transmission line. The electrical connector 340 on the base 330 is electrically connected to the conductive contact 310 through the power transmission line. To ensure a stable electrical connection during the rotation of the auxiliary roller 300, an electrical rotary joint 350 is provided at the connection between the shaft 320 and the auxiliary roller 300, ensuring a stable power transmission line connection even when the auxiliary roller 300 is rotating.

[0093] See Figure 1 , Figure 2 and Figure 4 In one embodiment, both the base 330 and the drive motor 130 are mounted on the fixed base 400;

[0094] The fixed base 400 has a limiting slide rail 410 that mates with the base 330, and the base 330 is fixed to the fixed base 400 by bolts.

[0095] Specifically, in order to integrate the auxiliary roller 300 and the conveying roller 100 together, the base 330 and the drive motor 130 are both mounted on the fixed seat 400, and the two pairs of positions of the base 330 behind the fixed seat 400 are limited by the limiting slide rail 410 to ensure that the auxiliary roller 300 and the tension compensation component 200 correspond one-to-one. The base 330 and the fixed seat 400 are further secured by bolts.

[0096] See also Figures 1-4In one embodiment, the drive motor 130 drives at least two conveying rollers 100 to rotate, and at least two auxiliary rollers 300 are arranged on the shaft 320, with the conveying rollers 100 and the auxiliary rollers 300 corresponding one-to-one.

[0097] Specifically, since multiple yarns need to be conveyed simultaneously during the production of core-spun yarn, the drive motor 130 drives at least two conveyor rollers 100 to rotate at the same time. Similarly, at least two auxiliary rollers 300 are arranged on the shaft 320. The conveyor rollers 100 and auxiliary rollers 300 correspond one-to-one to achieve clamping and limiting of the yarns and stable yarn conveying.

[0098] In one embodiment, the drive motor 130 is a dual-head motor, and the conveying rollers 100 are respectively connected to the two ends of the drive motor 130. Similarly, the auxiliary rollers 300 are also located at both ends of the shaft 320, and the base 330 is located in the middle of the shaft 320, so that the feeding speed of different lines can be adjusted.

[0099] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A filament tension stabilizing device for core-spun yarn preparation, characterized in that, include: Conveyor roller (100); Tension compensation assembly (200); as well as Auxiliary roller (300); The tension compensation component (200) is located on the conveying roller (100), and the auxiliary roller (300) cooperates with the tension compensation component (200) to press the line wrapped around the tension compensation component (200). Under normal conditions, the tension compensation component (200) and the conveying roller (100) are kept in a fixed position, and the conveying roller (100) drives the tension compensation component (200) and the auxiliary roller (300) to rotate to realize the conveying of the line; During tension compensation, the tension compensation component (200) rotates relative to the conveyor roller (100) to stabilize the tension of the production line; The cross-section of each conveying roller (100) is I-shaped. The tension compensation component (200) is sleeved in the placement groove (110) in the middle position of the conveying roller (100) and is in clearance fit with the inner wall of the placement groove (110). The conveying roller (100) has a torque sensor (120) on one end, and the conveying roller (100) is connected to the drive motor (130) through the torque sensor (120).

2. The filament tension stabilizing device for core-spun yarn preparation according to claim 1, characterized in that: The tension compensation component (200) includes at least: An annular housing (210) has an annular groove (220) on its outer circumference for limiting the movement of the line body. The annular housing (210) is fitted onto the self-locking motor (230) to form the outer shell of the self-locking motor (230).

3. The filament tension stabilizing device for core-spun yarn preparation according to claim 2, characterized in that: The self-locking motor (230) includes: The shaft formed by the columnar portion (111) inside the placement groove (110); The winding (231) sleeved on the shaft; and An electromagnetic starter (232) for regulating the operating state of the winding (231). The winding (231) and the electromagnetic starter (232) are both located inside the annular housing (210). The winding (231) is rotatably coupled with the shaft, and the electromagnetic starter (232) is electrically connected to the winding (231).

4. The filament tension stabilizing device for core-spun yarn preparation according to claim 2, characterized in that: The torque sensor (120) is connected to the self-locking motor (230) via a signal connection; The tension compensation component (200) rotates in the opposite direction to the conveyor roller (100), thus increasing the tension of the conveyor line; When the tension compensation component (200) rotates in the same direction as the conveyor roller (100), the tension of the line decreases.

5. The filament tension stabilizing device for core-spun yarn preparation according to claim 2, characterized in that: The annular groove (220) has an annular conductive slider (221) embedded on both sides of its sidewalls. The conductive slider (221) is connected to the self-locking motor (230) through a power supply circuit. The auxiliary roller (300) has annular conductive contacts (310) embedded on both sides of its sidewalls. When the annular housing (210) and the auxiliary roller (300) rotate synchronously, the conductive slider (221) keeps in contact with the corresponding conductive contact (310).

6. The filament tension stabilizing device for core-spun yarn preparation according to claim 5, characterized in that: The annular groove (220) is V-shaped, and the conductive slider (221) is embedded in the inclined sidewall of the annular groove (220); The conductive contact (310) is embedded in the side wall of the auxiliary roller (300) near the edge; Both the conductive slider (221) and the conductive contact (310) are tapered structures. When the conductive slider (221) contacts the corresponding conductive contact (310), the contact portion is a straight line.

7. The filament tension stabilizing device for core-spun yarn preparation according to claim 6, characterized in that: The auxiliary roller (300) is mounted on the base (330) via a shaft (320), the shaft (320) being a hollow structure, and the electrical connector (340) on the base (330) being electrically connected to the conductive contact (310) via a power transmission circuit; The power transmission circuit has an electrical rotary joint (350), and the auxiliary roller (300) is rotatably connected to the shaft (320) through the electrical rotary joint (350).

8. The filament tension stabilizing device for core-spun yarn preparation according to claim 7, characterized in that: Both the base (330) and the drive motor (130) are mounted on the fixed base (400); The fixed base (400) has a limiting slide rail (410) that cooperates with the base (330), and the base (330) is fixed to the fixed base (400) by bolts.

9. The filament tension stabilizing device for core-spun yarn preparation according to claim 7, characterized in that: The drive motor (130) drives at least two conveying rollers (100) to rotate, and at least two auxiliary rollers (300) are arranged on the shaft (320), with the conveying rollers (100) and auxiliary rollers (300) corresponding one-to-one.

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