A low-elasticity yarn twisting device

By designing a low-elasticity yarn twisting device with a rotating part and a limiting part, the problem of yarn breakage caused by friction during the twisting process of low-elasticity yarn was solved, achieving a high-quality twisting effect for low-elasticity yarn and enhancing the stability and tensile strength of the yarn.

CN224450977UActive Publication Date: 2026-07-03TONGXIANG MINGXIN TEXTILE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-18
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

In existing twisting devices, during the twisting process of low-elasticity yarn, friction easily occurs between the low-elasticity yarn and the low-elasticity yarn wound on the bobbin, leading to yarn breakage and affecting the quality of the low-elasticity yarn.

Method used

A low-elasticity yarn twisting device was designed, comprising a rotating part, an unwinding part, and a limiting part. The motor drives the gear system to rotate the bobbin and connector. The bobbin rotates accordingly to reduce friction between the low-elasticity yarns. The limiting part restricts the range of motion. Ceramic or nylon materials are used to reduce friction. Servo motor control and lubricating grease are combined to reduce transmission friction.

Benefits of technology

This effectively avoids friction between the low-elasticity yarn and the winding bobbin during the twisting process, improves the twisting quality of the low-elasticity yarn, and ensures the stability and tensile strength of the low-elasticity yarn.

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Abstract

This utility model provides a low-elasticity yarn twisting device, relating to the field of textile processing technology. The device includes a mounting plate, a rotating part (mounted on the mounting plate to drive the low-elasticity yarn to rotate), an unwinding part (mounted on the rotating part to clamp a spool wound with low-elasticity yarn, the spool body rotating with the rotating part), and a limiting part (mounted on the mounting plate to limit the range of motion of the low-elasticity yarn during rotation). In use, this twisting device allows the spool and connecting member to rotate around the same rotation center. When the low-elasticity yarn is pulled out of the spool, the spool rotates itself, and the connecting member further drives the low-elasticity yarn to rotate. This effectively prevents friction between the low-elasticity yarn released from the spool and the yarn wound on the spool during release, thus improving the twisting quality and achieving good results.
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Description

Technical Field

[0001] This utility model relates to the field of textile processing technology, specifically a low-elasticity yarn twisting device. Background Technology

[0002] Twisting low-elasticity yarn can enhance the tensile strength and abrasion resistance of yarn, while also improving the yarn structure and stability. However, a twisting device is required when twisting low-elasticity yarn. In existing twisting devices, the bobbin with the low-elasticity yarn does not rotate with the yarn itself. During the twisting process, frequent friction occurs between the low-elasticity yarn itself and the yarn wound on the bobbin, which can easily lead to breakage of the surface layer of the low-elasticity yarn, affecting its quality. Utility Model Content

[0003] The purpose of this invention is to provide a low-elasticity yarn twisting device, which aims to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: the low-elasticity yarn twisting device includes:

[0005] Mounting plate;

[0006] A rotating part is mounted on a mounting plate and is used to drive the low-elasticity wire to rotate.

[0007] An unwinding section is provided on a rotating section. The unwinding section is used to clamp a spool wound with low-elasticity yarn. The spool body can rotate with the rotation of the rotating section.

[0008] A limiting part is provided on the mounting plate, and the limiting part is used to limit the range of motion of the low elastic wire when it rotates.

[0009] Preferably, the rotating part includes a vertical plate mounted on a mounting plate, an annular ring on the vertical plate, and notches on both the annular ring and the vertical plate. It also includes a cover with an opening on one side, a sleeve on the inner side of the cover, an annular plate on one side of the sleeve, a bearing mounted on the sleeve, the inner ring of the bearing fixedly connected to the sleeve, and a gear ring mounted on the outer ring of the bearing. Gears meshing with the gear ring are located in the notches of the vertical plate and the annular ring. A motor for driving the gear rotation is located on the outer side of the cover. The part also includes a cover plate connected to the cover by bolts, an opening on one side, and a connector on the outer surface of the gear ring with a threading hole.

[0010] Preferably, the connector and the gear ring are connected by a thread.

[0011] Preferably, the unwinding section includes two support rods fixed on the same side of the gear ring. Each of the two support rods has a baffle at one end. A main shaft is rotatably connected to one baffle, and a limiting plate is provided at one end of the main shaft. A disc is rotatably connected to the other baffle, and a round rod is slidably connected to the disc. A positioning plate is provided at one end of the round rod. A protrusion is provided on one side of both the limiting plate and the positioning plate. A stop is provided at the other end of the round rod. The section also includes a spring sleeved on the round rod, and the spring is located between the positioning plate and the baffle.

[0012] Preferably, the limiting part includes a column, which is mounted on the mounting plate, and a limiting ring is provided at the upper end of the column.

[0013] The beneficial effects of this utility model are:

[0014] When in use, this twisting device enables the bobbin and connector to rotate around the same rotation center. When the low-elasticity yarn is pulled out from the bobbin, the bobbin itself rotates, and the connector drives the low-elasticity yarn to rotate. This effectively prevents friction between the low-elasticity yarn released from the bobbin and the low-elasticity yarn wound on the bobbin during the release process, thereby improving the twisting quality of the low-elasticity yarn and achieving good results. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model.

[0016] Figure 2 yes Figure 1 An exploded view from a specific perspective.

[0017] Figure 3 This is a schematic diagram of the twisting device from another angle.

[0018] Figure 4 yes Figure 3 An exploded view from a specific perspective.

[0019] Figure 5 It is a partial sectional view of the casing and cover.

[0020] Figure 6 This is a schematic diagram of the mating structure of the disk and the rod.

[0021] Figure 7 This is a schematic diagram showing the low-elasticity wire passing through the connector and the limiting ring.

[0022] In the diagram: 1. Mounting plate; 2. Wire spool; 3. Vertical plate; 4. Annular ring; 5. Cover; 6. Sleeve; 7. Ring plate; 8. Bearing; 9. Gear ring; 10. Gear; 11. Motor; 12. Cover plate; 13. Connector; 14. Support rod; 15. Baffle; 16. Main shaft; 17. Limiting plate; 18. Disc; 19. Round rod; 20. Positioning plate; 21. Protrusion; 22. Stop block; 23. Spring; 24. Column; 25. Limiting ring. Detailed Implementation

[0023] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0024] like Figure 1-7 As shown, a low-elasticity yarn twisting device includes:

[0025] Mounting plate 1;

[0026] A rotating part is mounted on the mounting plate 1 and is used to drive the low-elasticity wire to rotate.

[0027] The unwinding section is provided on the rotating section. The unwinding section is used to clamp the bobbin 2 with low-elasticity yarn wound on it. The bobbin 2 body can rotate with the rotation of the rotating section.

[0028] A limiting part is provided on the mounting plate 1. The limiting part is used to limit the range of motion of the low-elasticity wire when it rotates.

[0029] Furthermore, the rotating part includes a vertical plate 3 mounted on the mounting plate 1, an annular ring 4 on the vertical plate 3, and notches on both the annular ring 4 and the vertical plate 3. It also includes a cover 5 with an opening on one side. A sleeve 6 is provided on the inner side of the cover 5, and an annular ring plate 7 is provided on one side of the sleeve 6. A bearing 8 is mounted on the sleeve 6, with the inner ring of the bearing 8 fixedly connected to the sleeve 6. A gear ring 9 is mounted on the outer ring of the bearing 8. A gear 10 that meshes with the gear ring 9 is provided in the notches of the vertical plate 3 and the annular ring 4. A motor 11 for driving the gear 10 to rotate is provided on the outer side of the cover 5. It also includes a cover plate 12, which is bolted to the cover 5. One side of the cover plate 12 is open, and a connector 13 is provided on the outer surface of the gear ring 9. A wire hole is provided on the connector 13.

[0030] When controlling the rotation of the connector 13, the motor 11 needs to be started first. The motor 11 drives the gear 10 to rotate. Then, through the cooperation of the gear 10 and the gear ring 9, the gear ring 9 is driven to rotate. The gear ring 9 can rotate outside the sleeve 6 through the cooperation of the bearing 8. When the gear ring 9 rotates, it can drive the connector 13 installed on the gear ring 9 to rotate. The low-elastic wire can pass through the openings on the cover 5 and the cover plate 12, and can also pass through the middle of the sleeve 6. After passing through, the low-elastic wire passes through the wire hole on the connector 13. When the connector 13 rotates with the gear ring 9, it drives the low-elastic wire passing through the connector 13 to rotate.

[0031] Motor 11 is a servo motor, which can be controlled by a PLC controller, and the rotation speed and start / stop of motor 11 can be controlled.

[0032] Since the cover 5 and the cover plate 12 are detachable, they can be disassembled periodically, and lubricating grease can be applied to the gear ring 9 and the gear 10 to reduce the transmission friction between the gear 10 and the gear ring 9.

[0033] Bearing 8 can be selected from deep groove ball bearings or ceramic bearings.

[0034] The connector 13 is made of ceramic, nylon plastic, or galvanized stainless steel to reduce the friction between the low-elasticity wire and the connector 13.

[0035] Furthermore, the connector 13 and the gear ring 9 are connected by a thread, and a threaded hole is opened on the surface of the gear ring 9. When the connector 13 is connected to the gear ring 9 through the threaded hole, the end of the connector 13 that is not in contact with the gear ring 9 faces the center of the gear ring 9.

[0036] Furthermore, the unwinding section includes two support rods 14 fixed on the same side of the gear ring 9. Each support rod 14 has a baffle 15 at one end. A main shaft 16 is rotatably connected to one baffle 15. A limit plate 17 is provided at one end of the main shaft 16. A disc 18 is rotatably connected to the other baffle 15. A round rod 19 is slidably connected to the disc 18. A positioning plate 20 is provided at one end of the round rod 19. A protrusion 21 is provided on one side of both the limit plate 17 and the positioning plate 20. A stop block 22 is provided at the other end of the round rod 19. The section also includes a spring 23 sleeved on the round rod 19. The spring 23 is located between the positioning plate 20 and the baffle 15.

[0037] One end of the protrusion 21 is chamfered or rounded. The maximum outer diameter of the protrusion 21 is slightly smaller than the inner diameter of the spool 2. When the inner diameter of the spool 2 is 30.0 mm, the maximum outer diameter of the protrusion 21 is 29.0 mm, so that the spool 2 can be quickly fitted onto the outside of the protrusion 21. When installing the spool 2, one end of the spool 2 needs to be fitted onto the outside of any one of the protrusions 21. Then, by compressing the spring 23, the distance between the two protrusions 21 is increased. At this time, the distance between the two protrusions 21 is greater than the length of the spool 2. Then, the compression of the spring 23 is slowly reduced so that both protrusions 21 can enter the spool 2. The spring 23 can provide sufficient elasticity so that the spool 2 can be stably clamped and fixed between the two protrusions 21. At the same time, both ends of the spool 2 are in contact with the limiting plate 17 and the positioning plate 20, respectively.

[0038] The low-elasticity wire wound on the spool 2 needs to be pulled out by external force to release the low-elasticity wire. When the low-elasticity wire is pulled out from the spool 2, it will drive the spool 2, protrusion 21, limit plate 17, positioning plate 20, main shaft 16, spring 23, stop block 22, disc 18, and rod 19 to rotate together. Since the main shaft 16 and disc 18 are rotatably connected to the baffle 15, the rotational resistance of the spool 2 is low. When pulled by external force, the spool 2 can respond quickly and rotate.

[0039] Since both side plates are fixed to the gear ring 9 by the support rod 14, the support rod 14 and the gear ring 9 can be connected together by threaded connection or welding. Therefore, when the gear ring 9 rotates, the bobbin 2 will also rotate synchronously with the gear ring 9, so that the connector 13 can rotate together with the bobbin 2. During the process of the bobbin 2 feeding the wire and the bobbin 2 and the connector 13 rotating together, the low elasticity wire is twisted.

[0040] As the spool 2 rotates with the gear ring 9, the spring 23 applies sufficient thrust to the positioning plate 20, enabling the spool 2 to be stably positioned between the limiting plate 17 and the positioning plate 20. During the rotation, the spool 2 will move slightly between the limiting plate 17 and the positioning plate 20, but the protrusions 21 on the positioning plate 20 and the limiting plate 17 can still remain inside the spool 2 to ensure that the spool 2 can properly release the low-elastic wire. That is, the spool 2 can either rotate on the two protrusions 21 to release the low-elastic wire, or rotate together with the limiting plate 17 and the positioning plate 20 to release the low-elastic wire.

[0041] Furthermore, the limiting part includes a column 24, which is mounted on the mounting plate 1, and a limiting ring 25 is provided at the upper end of the column 24.

[0042] The column 24 is fixed to the mounting plate 1 by bolts or welding. The limiting ring 25 is made of nylon plastic. After the low-elasticity wire on the spool 2 passes through the sleeve 6, it first passes through the wire hole on the connector 13, and then passes through the limiting ring 25. The limiting ring 25 can restrict the circumferential movement of the low-elasticity wire to improve the stability of the low-elasticity wire when it moves.

[0043] When the equipment experiences wire breakage or unstable clamping of the spool 2, the twisting device needs to be maintained promptly.

[0044] An external traction device used to move low-elasticity wire can be a winding device.

[0045] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A low-elasticity yarn twisting device, characterized in that it comprises: Mounting plate; A rotating part is mounted on a mounting plate and is used to drive the low-elasticity wire to rotate. An unwinding section is provided on a rotating section. The unwinding section is used to clamp a spool wound with low-elasticity yarn. The spool body can rotate with the rotation of the rotating section. A limiting part is provided on the mounting plate, and the limiting part is used to limit the range of motion of the low elastic wire when it rotates.

2. A low-stretch yarn twisting device according to claim 1, characterized in that The rotating part includes a vertical plate mounted on a mounting plate, an annular ring on the vertical plate, and notches on both the annular ring and the vertical plate. It also includes a cover with an opening on one side, a sleeve on the inner side of the cover, an annular plate on one side of the sleeve, a bearing mounted on the sleeve, the inner ring of the bearing fixedly connected to the sleeve, and a gear ring mounted on the outer ring of the bearing. Gears meshing with the gear ring are located in the notches of the vertical plate and the annular ring. A motor for driving the gear rotation is located on the outer side of the cover. The part also includes a cover plate bolted to the cover, an opening on one side, and a connector on the outer surface of the gear ring with a threading hole.

3. A low-stretch yarn twisting device according to claim 2, characterized in that The connector and the gear ring are connected by a thread.

4. The low-stretch yarn twisting device according to claim 2, wherein The unwinding section includes two support rods fixed on the same side of the gear ring. Each support rod has a baffle at one end. A main shaft is rotatably connected to one baffle, and a limit plate is provided at one end of the main shaft. A disc is rotatably connected to the other baffle, and a round rod is slidably connected to the disc. A positioning plate is provided at one end of the round rod. A protrusion is provided on one side of both the limit plate and the positioning plate. A stop is provided at the other end of the round rod. The section also includes a spring sleeved on the round rod, located between the positioning plate and the baffle.

5. A low-stretch yarn twisting device according to claim 4, characterized in that The limiting part includes a column, which is mounted on a mounting plate, and a limiting ring is provided at the upper end of the column.