A doubling and twisting machine bobbin positioning device

By using a connection mechanism consisting of helical gears and lead screws, and with the automated control of a servo motor, the problem of unreliable bobbin positioning devices in existing double twisting machines has been solved, achieving a stable connection and efficient fixation of the bobbins, and improving the yield rate.

CN224531150UActive Publication Date: 2026-07-21WUXI HUAWEN MECHANICAL & ELECTRONICS APP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUXI HUAWEN MECHANICAL & ELECTRONICS APP
Filing Date
2025-06-10
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The existing spool positioning device of the twisting machine clamps the outer wall of the spool, which affects the use of the spool and is not reliable, resulting in a decrease in the yield of finished products.

Method used

A connecting mechanism is adopted, including a helical gear and a lead screw to drive the moving sleeve to be inserted into the connecting groove on the inner wall of the spool for fixation, and the servo motor is used for automatic control to ensure that the inside of the spool is firmly fixed.

Benefits of technology

This achieves a secure connection of the bobbins, preventing loosening, while not affecting the movement of the external threads on the bobbins, thus improving yield and applicability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of doubling twister wire drum positioning devices, including placing table, the placing table top is equipped with several evenly distributed rotary disc, the rotary disc top is equipped with positioning rod, the positioning rod outer wall is equipped with wire drum, the wire drum is connected with the positioning rod by connecting mechanism, the connecting mechanism includes the positioning rod in and is equipped with rotating shaft. Advantageous effect: by setting connecting mechanism can be more firmly to wire drum limit, be driven simultaneously to the connecting mechanism in oblique gear one, oblique gear two and screw rod cooperation multiple groups of moving sleeve and then insert into the connecting groove on wire drum inner wall and it is fixed, connection is more reliable to prevent wire drum to come loose, simultaneously because from inside to wire drum fixed, and do not affect wire drum external silk thread movement, further improve its applicability, by setting touch switch personnel will wire drum sleeve on positioning rod when can automatic start servo motor operation and drive moving sleeve movement and then fix wire drum, connection is fast and efficient.
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Description

Technical Field

[0001] This utility model relates to the field of textile processing technology, and more specifically, to a positioning device for a spool of a twisting machine. Background Technology

[0002] The doubling machine bobbin positioning device is a twisting device, essentially a paralleling device (multiple strands combined into one), called a paralleling machine. There is no specific Chinese or English name for it. It can achieve two twists in one turn, and the twisting efficiency is several times higher than that of traditional twisting equipment. The roll capacity is increased, and there are no joints for tens of thousands of meters. The twisting quality is greatly improved, and the lower layer height makes it particularly suitable for operation.

[0003] According to Chinese Patent CN202223581014.6, a spool positioning device for a doubling machine utilizes a combination of a clamp, a soft pad, a spool groove, a limit switch, a first motor, a positioning device housing, a crossbar, a connecting rod, and an arc rod. By pressing the limit switch, the limit switch controls the start of the first motor, which drives the crossbar to rotate. Simultaneously, the connecting rod rotates, and the arc rod rotates, clamping the spool through the soft pad. This secures the spool without damaging it due to excessive clamping force, significantly improving the yield rate. Existing spool positioning devices for doubling machines primarily clamp the outer wall of the spool. However, since the outer wall needs to be wound with yarn, clamping it affects the actual use of the spool, and the existing clamping methods are not reliable.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] In view of the problems in the related technologies, this utility model proposes a bobbin positioning device for a twisting machine to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] Therefore, the specific technical solution adopted by this utility model is as follows:

[0007] A spool positioning device for a twisting machine includes a placement platform. The top of the placement platform has several evenly distributed rotating disks. The top of each rotating disk has a positioning rod. A spool is fitted onto the outer wall of the positioning rod. The spool is connected to the positioning rod via a connecting mechanism. The connecting mechanism includes a rotating shaft within the positioning rod. Several evenly distributed helical gears are fixedly fitted onto the outer wall of the rotating shaft. Symmetrically arranged lead screws are located on both sides of each helical gear. The lead screws are connected to the positioning rod via a connecting frame. A helical gear matching the helical gear is located on one side of each lead screw. A movable sleeve is located on the side of the lead screw away from the helical gear. One side of the movable sleeve extends beyond the positioning rod. A connecting groove matching the movable sleeve is formed on the inner wall of the spool. The top of the rotating shaft extends beyond the positioning rod and connects to the drive end of a servo motor. A touch switch matching the servo motor is located at the top of the rotating disk.

[0008] Preferably, the bottom of the placement platform is provided with a plurality of evenly distributed fixing blocks, and the top of the fixing blocks is provided with mounting holes.

[0009] Preferably, the outer wall of the rotating shaft is provided with symmetrically arranged limiting keys, and the inner wall of the spool is provided with a keyway that matches the limiting keys.

[0010] Preferably, the lead screw is connected to the connecting frame via a bearing, and the outer wall of the positioning rod has a through hole that matches the movable sleeve.

[0011] Preferably, one side of the lead screw extends into the movable sleeve, the inner wall of the movable sleeve is provided with a threaded groove that matches the lead screw, the outer wall of the movable sleeve is provided with symmetrically arranged limiting blocks, and one side of the connecting frame is provided with a guide rod that passes through the limiting block.

[0012] Preferably, the limiting block has a sliding hole that matches the guide rod.

[0013] Preferably, the touch switch includes a mounting sleeve symmetrically arranged at the top of the rotating disk, a pressure sensor at the bottom of the mounting sleeve, a slider matching the mounting sleeve at the top of the pressure sensor, a pressure rod extending out of the mounting sleeve and abutting against the spool at the top of the slider, a spring sleeved in the mounting sleeve and located on the outer wall of the pressure rod, and a touch block abutting against the pressure sensor at the bottom of the slider.

[0014] Preferably, the slider is connected to the mounting sleeve via the spring, and the top of the mounting sleeve has a sliding hole that matches the pressure rod.

[0015] The beneficial effects of this utility model are as follows: by setting a connecting mechanism, the bobbin can be more firmly positioned. The helical gear one, helical gear two and lead screw in the connecting mechanism work together to drive multiple sets of moving sleeves to move outwards towards the positioning rod and then insert them into the connecting groove on the inner wall of the bobbin to fix it. The connection is more reliable and prevents the bobbin from loosening. At the same time, since the bobbin is fixed from the inside, it does not affect the movement of the thread outside the bobbin, further improving its applicability. By setting a touch switch, when the operator puts the bobbin on the positioning rod, the servo motor can be automatically started to drive the moving sleeve to move and fix the bobbin. The connection is fast and efficient. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of a doubling machine bobbin positioning device according to an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the turntable in a spool positioning device for a twisting machine according to an embodiment of the present utility model;

[0019] Figure 3 This is a cross-sectional view of the turntable in a spool positioning device for a twisting machine according to an embodiment of the present utility model;

[0020] Figure 4 yes Figure 3 A magnified view of a portion of point A in the middle;

[0021] Figure 5 yes Figure 3 A magnified view of a portion of point B in the middle;

[0022] Figure 6 This is a schematic diagram of the positioning rod in a spool positioning device for a twisting machine according to an embodiment of the present invention.

[0023] In the picture:

[0024] 1. Placement platform; 2. Rotating disk; 3. Positioning rod; 4. Wire spool; 5. Helical gear one; 6. Lead screw; 7. Connecting frame; 8. Helical gear two; 9. Moving sleeve; 10. Servo motor; 11. Fixing block; 12. Limiting block; 13. Guide rod; 14. Mounting sleeve; 15. Pressure sensor; 16. Slider; 17. Pressure rod; 18. Spring; 19. Contact block; 20. Rotating shaft; 21. Limit key. Detailed Implementation

[0025] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0026] According to an embodiment of the present invention, a positioning device for a doubling machine bobbin is provided.

[0027] Example 1;

[0028] like Figures 1-6 As shown, the spool positioning device for a twisting machine according to an embodiment of the present invention includes a placement platform 1. The top of the placement platform 1 is provided with a plurality of evenly distributed rotating disks 2. The top of each rotating disk 2 is provided with a positioning rod 3. A spool 4 is sleeved on the outer wall of the positioning rod 3. The spool 4 is connected to the positioning rod 3 via a connecting mechanism. The connecting mechanism includes a rotating shaft 20 within the positioning rod 3. A plurality of evenly distributed helical gears 5 are fixedly sleeved on the outer wall of the rotating shaft 20. Symmetrically arranged lead screws 6 are provided on both sides of each helical gear 5. The lead screws 6 are connected to the positioning rod 3 via a connecting frame 7. A helical gear 8 matching the helical gear 5 is provided on one side of the lead screw 6. A movable sleeve 9 is provided on the side of the lead screw 6 away from the helical gear 8. One side of the movable sleeve 9 extends outside the positioning rod 3. A connecting groove matching the movable sleeve 9 is opened on the inner wall of the spool 4. The top of the rotating shaft 20 extends outside the positioning rod 3 and connects to the drive end of a servo motor 10. A touch switch matching the servo motor 10 is provided at the top of the rotating disk 2.

[0029] Example 2;

[0030] like Figures 1-6As shown, the device includes a placement platform 1, with several evenly distributed rotating disks 2 at the top of the placement platform 1. A positioning rod 3 is located at the top of each rotating disk 2. A bobbin 4 is fitted onto the outer wall of the positioning rod 3. The bobbin 4 is connected to the positioning rod 3 via a connecting mechanism. The connecting mechanism includes a rotating shaft 20 within the positioning rod 3. Several evenly distributed helical gears 5 are fixedly fitted onto the outer wall of the rotating shaft 20. Symmetrically arranged lead screws 6 are located on both sides of each helical gear 5. The lead screws 6 are connected to the positioning rod 3 via a connecting frame 7. A helical gear 8 matching the helical gear 5 is located on one side of the lead screw 6. A movable sleeve 9 is located on the side of the lead screw 6 away from the helical gear 8. One side of the movable sleeve 9 extends outside the positioning rod 3. A connecting groove matching the movable sleeve 9 is opened on the inner wall of the bobbin 4. The top of the rotating shaft 20 extends outside the positioning rod 3 and connects to the drive end of a servo motor 10. A touch switch matching the servo motor 10 is located at the top of the rotating disk 2. The bottom of the placement platform 1 is provided with several evenly distributed fixing blocks 11, and the top of each fixing block 11 has a mounting hole. The outer wall of the rotating shaft 20 is provided with symmetrically arranged limiting keys 21, and the inner wall of the spool 4 has a keyway matching the limiting keys 21. The lead screw 6 is connected to the connecting frame 7 via a bearing, and the outer wall of the positioning rod 3 has a through hole matching the moving sleeve 9. One side of the lead screw 6 extends into the moving sleeve 9, and the inner wall of the moving sleeve 9 has a threaded groove matching the lead screw 6. The outer wall of the moving sleeve 9 is provided with symmetrically arranged limiting blocks 12, and one side of the connecting frame 7 has a guide rod 13 penetrating through the limiting block 12. A sliding hole matching the guide rod 13 is provided on the limiting block 12. When fixing the spool 4, firstly, the spool 4 is placed on the positioning rod 3. The limiting key on the positioning rod 3 enters the keyway on the inner wall of the spool 4. When the bottom of the spool 4 contacts the touch switch, the servo motor 10 is started to drive the rotating shaft 20 to rotate. The rotating shaft 20 drives multiple sets of helical gears 1 5 to rotate. Helical gears 1 5 drive helical gears 2 8 to rotate. Helical gears 2 8 drive the lead screw 6 to rotate. The lead screw 6 drives the moving sleeve 9 to move outward from the positioning rod 3 until it is inserted into the connecting groove on the inner wall of the spool 4, thus fixing the spool 4. By setting a connecting mechanism, the spool can be fixed more firmly. The helical gears 1 and 2 and the lead screw in the connecting mechanism work together to drive multiple sets of moving sleeves to move outward from the positioning rod at the same time and then insert them into the connecting groove on the inner wall of the spool to fix it. The connection is more reliable and prevents the spool from loosening. At the same time, since the spool is fixed from the inside, it does not affect the movement of the thread outside the spool, further improving its applicability.

[0031] Example 3;

[0032] like Figures 1-6As shown, the device includes a placement platform 1, with several evenly distributed rotating disks 2 at the top of the placement platform 1. A positioning rod 3 is located at the top of each rotating disk 2. A bobbin 4 is fitted onto the outer wall of the positioning rod 3. The bobbin 4 is connected to the positioning rod 3 via a connecting mechanism. The connecting mechanism includes a rotating shaft 20 within the positioning rod 3. Several evenly distributed helical gears 5 are fixedly fitted onto the outer wall of the rotating shaft 20. Symmetrically arranged lead screws 6 are located on both sides of each helical gear 5. The lead screws 6 are connected to the positioning rod 3 via a connecting frame 7. A helical gear 8 matching the helical gear 5 is located on one side of the lead screw 6. A movable sleeve 9 is located on the side of the lead screw 6 away from the helical gear 8. One side of the movable sleeve 9 extends outside the positioning rod 3. A connecting groove matching the movable sleeve 9 is opened on the inner wall of the bobbin 4. The top of the rotating shaft 20 extends outside the positioning rod 3 and connects to the drive end of a servo motor 10. A touch switch matching the servo motor 10 is located at the top of the rotating disk 2. The touch switch includes mounting sleeves 14 symmetrically arranged at the top of the rotating disk 2. A pressure sensor 15 is located at the bottom of the inner part of the mounting sleeve 14. A slider 16 matching the mounting sleeve 14 is located at the top of the pressure sensor 15. A pressure rod 17 extending beyond the mounting sleeve 14 and abutting against the spool 4 is located at the top of the slider 16. A spring 18 is fitted inside the mounting sleeve 14 and on the outer wall of the pressure rod 17. A contact block 19 abutting against the pressure sensor 15 is located at the bottom of the slider 16. The slider 16 is connected to the mounting sleeve 14 via the spring. A sliding hole matching the pressure rod 17 is formed at the top of the mounting sleeve 14. When the spool 4 is placed on the positioning rod 3, the bottom of the spool 4 will press against the pressure rod 17. The pressure rod 17 will drive the contact block 19 to move downwards and press against the pressure sensor 15. The pressure sensor 15 will send a pressure signal to the external controller. The external controller will start the servo motor 10 to run quickly and fix the spool 4. The spring 18 can play a buffering role. By setting a touch switch, when the operator puts the spool on the positioning rod, the servo motor can be started to run and drive the moving sleeve to move and fix the spool. The connection is fast and efficient.

[0033] In practical applications, when fixing the spool 4, firstly, the spool 4 is placed on the positioning rod 3. The limiting key on the positioning rod 3 enters the keyway on the inner wall of the spool 4. When the bottom of the spool 4 contacts the touch switch, the servo motor 10 is activated to drive the rotating shaft 20 to rotate. The rotating shaft 20 drives multiple sets of helical gears 1 5 to rotate, which in turn drives helical gear 2 8 to rotate. Helical gear 2 8 drives the lead screw 6 to rotate, and the lead screw 6 drives the moving sleeve 9 to move outward from the positioning rod 3 until it is inserted into the connecting groove on the inner wall of the spool 4, thus fixing the spool 4. By setting a connecting mechanism, the spool can be fixed more securely. The helical gears 1 and 2 and the lead screw in the connecting mechanism work together to drive multiple sets of moving sleeves to move outward from the positioning rod simultaneously and then insert into the groove. The spool is fixed in the connecting groove on the inner wall of the spool, making the connection more secure and preventing the spool from loosening. At the same time, since the spool is fixed from the inside, it does not affect the movement of the external thread on the spool, further improving its applicability. When the spool 4 is fitted onto the positioning rod 3, the bottom of the spool 4 will press against the pressure rod 17. The pressure rod 17 will drive the contact block 19 to move downwards and press against the pressure sensor 15. The pressure sensor 15 will send a pressure signal to the external controller. The external controller will start the servo motor 10 to run quickly and fix the spool 4. The spring 18 can play a buffering role. By setting a touch switch, when the operator puts the spool onto the positioning rod, the servo motor will be automatically started to drive the moving sleeve to move and fix the spool. The connection is fast and efficient.

[0034] In summary, by utilizing the above-mentioned technical solution of this utility model, the connection mechanism can more firmly limit the positioning of the spool. The helical gear one, helical gear two and lead screw in the connection mechanism work together to drive multiple sets of moving sleeves to move outwards towards the positioning rod and then insert them into the connecting groove on the inner wall of the spool to fix it. The connection is more reliable and prevents the spool from loosening. At the same time, since the spool is fixed from the inside, it does not affect the movement of the external thread on the spool, further improving its applicability. By setting a touch switch, when the operator puts the spool on the positioning rod, the servo motor can be automatically started to drive the moving sleeves to move and fix the spool. The connection is fast and efficient.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A bobbin positioning device for a doubling machine, characterized in that, The device includes a placement platform (1), with several evenly distributed rotating disks (2) at the top of the placement platform (1). A positioning rod (3) is located at the top of each rotating disk (2). A bobbin (4) is fitted onto the outer wall of the positioning rod (3). The bobbin (4) is connected to the positioning rod (3) via a connecting mechanism. The connecting mechanism includes a rotating shaft (20) within the positioning rod (3). Several evenly distributed helical gears (5) are fixedly fitted onto the outer wall of the rotating shaft (20). Symmetrically arranged lead screws (6) are located on both sides of each helical gear (5). The lead screws (6) are connected to the device via a connecting frame (7). The positioning rod (3) is connected to the lead screw (6). A helical gear (8) matching the helical gear (5) is provided on one side of the lead screw (6). A movable sleeve (9) is provided on the side of the lead screw (6) away from the helical gear (8). One side of the movable sleeve (9) extends to the outside of the positioning rod (3). A connecting groove matching the movable sleeve (9) is opened on the inner wall of the spool (4). The top end of the rotating shaft (20) extends to the outside of the positioning rod (3) and is connected to the drive end of the servo motor (10). A touch switch matching the servo motor (10) is provided on the top end of the rotating disk (2).

2. The positioning device for a doubling machine spool according to claim 1, characterized in that, The bottom of the placement platform (1) is provided with several evenly distributed fixing blocks (11), and the top of the fixing blocks (11) is provided with mounting holes.

3. The positioning device for a doubling machine spool according to claim 1, characterized in that, The outer wall of the rotating shaft (20) is provided with symmetrically arranged limiting keys (21), and the inner wall of the bobbin (4) is provided with a keyway that matches the limiting keys (21).

4. The positioning device for a doubling machine spool according to claim 1, characterized in that, The lead screw (6) is connected to the connecting frame (7) via a bearing, and the outer wall of the positioning rod (3) has a through hole that matches the moving sleeve (9).

5. A spool positioning device for a doubling machine according to claim 1, characterized in that, The lead screw (6) extends into the movable sleeve (9) on one side. The inner wall of the movable sleeve (9) is provided with a threaded groove that matches the lead screw (6). The outer wall of the movable sleeve (9) is provided with symmetrically arranged limiting blocks (12). The connecting frame (7) is provided with a guide rod (13) that passes through the limiting block (12) on one side.

6. A spool positioning device for a doubling machine according to claim 5, characterized in that, The limiting block (12) has a sliding hole that matches the guide rod (13).

7. A spool positioning device for a doubling machine according to claim 1, characterized in that, The touch switch includes a mounting sleeve (14) symmetrically arranged at the top of the rotating disk (2). A pressure sensor (15) is provided at the bottom of the inner side of the mounting sleeve (14). A slider (16) matching the mounting sleeve (14) is provided at the top of the pressure sensor (15). A pressure rod (17) extending to the outside of the mounting sleeve (14) and abutting against the spool (4) is provided at the top of the slider (16). A spring (18) is sleeved in the mounting sleeve (14) and located on the outer wall of the pressure rod (17). A touch block (19) abutting against the pressure sensor (15) is provided at the bottom of the slider (16).

8. A spool positioning device for a doubling machine according to claim 7, characterized in that, The slider (16) is connected to the mounting sleeve (14) via the spring (18), and the top of the mounting sleeve (14) has a sliding hole that matches the pressure rod (17).