Control method for a two-path double-drive adjustable spinning device

Abstract

The application provides a control method of a double-path double-drive adjustable spinning device, which comprises a first lead screw and a second lead screw arranged in parallel, the first lead screw is connected with a first servo motor, the second lead screw is connected with a second servo motor, a first transmission nut seat is arranged on the first lead screw, the first transmission nut seat is threadedly connected with the first lead screw, a second transmission nut seat is arranged on the second lead screw, the second transmission nut seat is threadedly connected with the second lead screw; the first transmission nut seat is used for being connected with a leaf plate cross beam, the leaf plate cross beam is provided with a guide hook, the second transmission nut seat is used for being connected with a ring plate cross beam, the ring plate cross beam is provided with a ring; in the spinning process, according to the displacement of the ring, the displacement of the guide hook is adjusted in a following mode, so that the form of the yarn loop is kept stable. The application keeps the distance between the guide hook and the ring in a proportional change, maintains the yarn loop form in a constant state, achieves the purpose of constant tension spinning, and reduces the generation of the yarn hairiness.

Description

Technical Field

[0001] This invention relates to the field of spinning, and in particular to a control method for a dual-path, dual-drive adjustable spinning device. Background Technology

[0002] In existing glass fiber twisting lifting transmission structures, most adopt a dual-path lead screw structure, which has the advantages of high transmission accuracy. A servo motor drives the dual-path lead screw to reciprocate. Due to the influence of the lifting space, there is a transmission differential ratio between the blade lead screw and the ring lead screw to compensate for the insufficient spinning stroke. With the ring diameter and guide hook size remaining constant, the height of the air ring of the twisted yarn changes continuously with the distance between the blade beam and the ring beam that are moving up and down, resulting in a continuous change in the shape of the air ring, such as... Figure 7 As shown, this leads to continuous fluctuations in spinning tension during the spinning process due to changes in the air ring. This uneven tension results in inconsistent hardness and density of the wound yarn tube, severely impacting product quality. Existing technologies employ tension regulators along the yarn path to reduce air ring fluctuations. However, the process from detecting the yarn air ring shape to tension adjustment and then feedback back to the yarn air ring shape involves a time lag, making it difficult to eliminate air ring variations and thus perpetuating the problem of uneven tension during spinning.

[0003] A further technical problem is that in traditional single-motor dual-path lifting transmission structures and single-motor controlled clutch structures, the distance between the blade crossbeam and the ring rail crossbeam cannot be adjusted in real time using a program. This means that the heights of the blade crossbeam and the ring rail crossbeam remain constant when spinning different types of yarn. Adjustments are difficult to make except by replacing the synchronous pulley. Such a structure has a certain impact on product quality. For example, the above-mentioned problem exists in CN102817120A and CN104514049A. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a control method for a dual-path dual-drive adjustable spinning device, which enables the yarn rolls produced by the yarn air rings during the spinning process to have uniform hardness and density.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a control method for a dual-path dual-drive adjustable spinning device, including a first lead screw and a second lead screw arranged in parallel, the first lead screw being connected to a first servo motor, the second lead screw being connected to a second servo motor, a first transmission nut seat being provided on the first lead screw, the first transmission nut seat being threadedly connected to the first lead screw, and a second transmission nut seat being provided on the second lead screw, the second transmission nut seat being threadedly connected to the second lead screw.

[0006] The first transmission nut seat is used to connect with the fender crossbeam, which is equipped with a yarn guide hook; the second transmission nut seat is used to connect with the steel ring plate crossbeam, which is equipped with a steel ring.

[0007] During the spinning process, the displacement of the yarn guide hook is adjusted according to the displacement of the ring to keep the shape of the yarn loop stable.

[0008] In the preferred embodiment, the spinning process includes the following steps:

[0009] S1. Start the spindle motor to drive the yarn drum to rotate;

[0010] S2. Obtain the yarn type and set the lifting stroke parameters of the ring;

[0011] S3. The second servo motor starts rotating according to the spinning parameters, driving the ring to rise and fall. The control system obtains the rotational speed V2 of the second servo motor according to the formula:

[0012] V1 = d2 × V2 / d1;

[0013] The rotational speed V1 of the first servo motor is obtained;

[0014] In the formula: d2 is the transmission ratio between the second servo motor and the second lead screw, and d1 is the transmission ratio between the first servo motor and the first lead screw;

[0015] S4. When the second servo motor reverses direction, the first servo motor reverses direction accordingly.

[0016] The above steps ensure uniform tension during the spinning process.

[0017] In the preferred embodiment, the rotational speed V2 of the second servo motor is a nonlinear curve. During one reciprocating motion of the steel ring, the rotational speed V2 of the second servo motor is successively divided into a low acceleration segment, a high acceleration segment, a low acceleration segment to maximum speed, a low deceleration segment, a high deceleration segment, a low deceleration segment to 0 speed, reversal, a low acceleration segment, a high acceleration segment, a low acceleration segment to maximum speed, a low deceleration segment, a high deceleration segment, a low deceleration segment to 0 speed.

[0018] In another alternative approach, the spinning process includes the following steps:

[0019] S1. Start the spindle motor to drive the yarn drum to rotate;

[0020] S2. Obtain the yarn type and set the lifting stroke parameters of the ring;

[0021] S3. The second servo motor starts to rotate according to the spinning parameters. The control system obtains the rotation speed V2 of the second servo motor, drives the first servo motor to rotate in the same direction according to the data of the distance sensor, and makes the data of the distance sensor change according to the preset value δ.

[0022] S4. When the second servo motor reverses direction, the first servo motor reverses direction accordingly.

[0023] The above steps ensure uniform tension during the spinning process.

[0024] In the preferred scheme, the preset value δ is divided into the following segments in one reciprocating motion of the steel ring: synchronous segment, proportional approach segment, synchronous segment to the highest point, reversal, synchronous segment, proportional distance segment, and synchronous segment to the lowest point.

[0025] In the preferred embodiment, when spinning is complete and the yarn roll needs to be removed, the control system drives the first servo motor to rotate, raising the leaf plate crossbeam to its highest position.

[0026] The control system drives the second servo motor to rotate, causing the steel ring to descend to its lowest position.

[0027] In the preferred embodiment, the first transmission nut seat and the second transmission nut seat are connected on the same side;

[0028] The first transmission nut seat is provided with a through hole, and the second lead screw is located in the through hole so that the connection positions of the first transmission nut seat and the second transmission nut seat are on the same side.

[0029] One end of the first lead screw and the second lead screw are supported on the first bearing housing, and the other end of the first lead screw and the second lead screw are supported on the second bearing housing.

[0030] The first servo motor is connected to the first lead screw via a reduction transmission mechanism;

[0031] The second servo motor is connected to the second lead screw via a reduction gear transmission mechanism.

[0032] In a preferred embodiment, the transmission ratio of the reduction transmission mechanism between the first servo motor and the first lead screw is 3~5:1, and the transmission ratio between the second servo motor and the second lead screw is 3~8:1.

[0033] In a preferred embodiment, the first servo motor is connected to the first drive wheel, the first drive wheel is connected to the first transmission wheel via a synchronous belt, the first transmission wheel is coaxially connected to the second transmission wheel, the second transmission wheel is connected to the third transmission wheel via a synchronous belt, the third transmission wheel is connected to the first lead screw, the diameter of the first drive wheel is smaller than the diameter of the first transmission wheel, the diameter of the first transmission wheel is larger than the diameter of the second transmission wheel, and the diameter of the second transmission wheel is smaller than the diameter of the third transmission wheel.

[0034] The second servo motor is connected to the reduction mechanism, which is connected to the second drive wheel. The second drive wheel is connected to the fourth transmission wheel via a synchronous belt. The diameter of the fourth transmission wheel is smaller than that of the second drive wheel.

[0035] In a preferred embodiment, a distance sensor is provided between the first transmission nut seat and the second transmission nut seat. The distance sensor is an infrared or laser reflective distance sensor.

[0036] This invention provides a control method for a dual-path, dual-drive adjustable spinning device, which has the following technical advantages compared with the prior art:

[0037] 1. When changing to different types of raw yarn, the lifting speed and direction of the first lead screw can be controlled by the first servo motor and the lifting speed and direction of the second lead screw by the second servo motor in the control program of the control device. This allows for adjustment of the spacing between the steel ring plate beam and the leaf plate beam. Therefore, the spacing between the yarn guide hook and the steel ring can be adjusted at any time through the control program, meeting the process requirements of twisting different types of raw yarn and the quality requirements of twisted yarn.

[0038] 2. When the first servo motor and the second servo motor control the lifting and lowering of the first transmission nut seat and the second transmission nut seat respectively, the distance between the yarn guide hook and the ring changes approximately proportionally, maintaining a roughly constant yarn loop shape, achieving the purpose of constant tension spinning, and reducing the generation of yarn fuzz.

[0039] 3. Through the above transmission structure, the first servo motor controls the first lead screw to raise the blade crossbeam to its highest position, and the second servo motor controls the second lead screw to lower the steel ring plate crossbeam to its lowest position, maximizing the distance between the two and leaving sufficient space for subsequent manual or automatic yarn picking. This achieves the function of increasing the yarn picking space. Attached Figure Description

[0040] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0041] Figure 1 This is a perspective view of the present invention.

[0042] Figure 2 This is the front view of the present invention.

[0043] Figure 3 This is the left view of the present invention.

[0044] Figure 4 This is a schematic diagram of the structure of the present invention installed in a spinning machine.

[0045] Figure 5 This is a control curve diagram showing the lifting elevation and lifting speed of the yarn guide hook and the ring in this invention.

[0046] Figure 6 This is a schematic diagram illustrating how the shape of the yarn loop changes as the yarn guide hook and the ring rise and fall according to the present invention.

[0047] Figure 7This is a schematic diagram illustrating how the shape of the yarn loop changes with the rise and fall of the ring in existing technologies.

[0048] In the diagram, 1 is the first bearing housing, 2 is the first transmission nut housing, 3 is the first lead screw, 4 is the second transmission nut housing, 5 is the second lead screw, 6 is the second bearing housing, 7 is the yarn guide hook, 8 is the fender crossbeam, 9 is the steel ring crossbeam, 10 is the steel ring, 11 is the first servo motor, 12 is the second servo motor, 13 is the first transmission wheel, 14 is the first drive wheel, 15 is the second transmission wheel, 16 is the third transmission wheel, 17 is the fourth transmission wheel, 18 is the second drive wheel, 19 is the yarn air ring, 20 is the nylon hook, 21 is the yarn drum, 22 is the spindle motor, and 23 is the reduction mechanism. Detailed Implementation

[0049] Example 1:

[0050] like Figures 1-3 In the present invention, a dual-path dual-drive adjustable spinning device includes a first lead screw 3 and a second lead screw 5 arranged in parallel. The first lead screw 3 is connected to a first servo motor 11, and the second lead screw 5 is connected to a second servo motor 12. A first transmission nut seat 2 is provided on the first lead screw 3 and is threadedly connected to the first lead screw 3. A second transmission nut seat 4 is provided on the second lead screw 5 and is threadedly connected to the second lead screw 5.

[0051] Preferred solutions include Figure 2 In this configuration, the first transmission nut seat 2 is used to connect with the fender crossbeam 8, which is equipped with a yarn guide hook 7. The second transmission nut seat 4 is used to connect with the ring plate crossbeam 9, which is equipped with a ring plate 10. A movable nylon hook 20 is provided on the ring plate 10. The yarn passes through the nylon hook 20 and connects to the yarn spool 21. The nylon hook 20 is pulled by the yarn and rotates around the ring plate 10.

[0052] Preferred solutions include Figure 2 In this structure, the first transmission nut seat 2 and the second transmission nut seat 4 are connected on the same side; thus, the first transmission nut seat 2 and the second transmission nut seat 4 can be driven independently to rise and fall respectively.

[0053] Preferred solutions include Figure 1 In the first transmission nut seat 2, a through hole is provided, and the second lead screw 5 is located in the through hole, so that the connection positions of the first transmission nut seat 2 and the second transmission nut seat 4 are on the same side.

[0054] One end of the first lead screw 3 and the second lead screw 5 is supported on the first bearing seat 1, and the other end of the first lead screw 3 and the second lead screw 5 is supported on the second bearing seat 6.

[0055] The first servo motor 11 is connected to the first lead screw 3 through a reduction transmission mechanism;

[0056] The second servo motor 12 is connected to the second lead screw 5 through a reduction transmission mechanism.

[0057] In a preferred embodiment, the transmission ratio of the reduction transmission mechanism between the first servo motor 11 and the first lead screw 3 is 3~5:1, and the transmission ratio between the second servo motor 12 and the second lead screw 5 is 3~8:1.

[0058] Preferred solutions include Figure 1 , 3 In the first drive wheel 14, the first drive wheel 14 is connected to the first transmission wheel 13 via a synchronous belt. The first transmission wheel 13 is coaxially connected to the second transmission wheel 15. The second transmission wheel 15 is connected to the third transmission wheel 16 via a synchronous belt. The third transmission wheel 16 is connected to the first lead screw 3. The diameter of the first drive wheel 14 is smaller than the diameter of the first transmission wheel 13. The diameter of the first transmission wheel 13 is larger than the diameter of the second transmission wheel 15. The diameter of the second transmission wheel 15 is smaller than the diameter of the third transmission wheel 16.

[0059] The second servo motor 12 is connected to the reduction mechanism 23, which is connected to the second drive wheel 18. The second drive wheel 18 is connected to the fourth transmission wheel 17 via a synchronous belt. The diameter of the fourth transmission wheel 17 is smaller than the diameter of the second drive wheel 18. Preferably, the reduction mechanism 23 is a planetary gear reducer.

[0060] In a preferred embodiment, a distance sensor is provided between the first transmission nut seat 2 and the second transmission nut seat 4. The distance sensor is not shown in the figure; preferably, it is an infrared or laser reflective distance sensor. Using a distance sensor can prevent the spinning quality from being affected by a malfunction of the first servo motor 11 or the second servo motor 12.

[0061] Example 2:

[0062] like Figure 4 , 5 As shown, a control method for the dual-path dual-drive adjustable spinning device described above includes the following steps: during the spinning process, the displacement of the guide hook 7 is adjusted according to the displacement of the ring 10 to keep the shape of the yarn air ring 19 stable.

[0063] The preferred solution specifically includes the following steps:

[0064] S1. Start the spindle motor 22 to drive the yarn drum 21 to rotate;

[0065] S2. Obtain the spinning variety and set the lifting stroke parameters of the ring 10 according to the corresponding process parameters of the spinning variety.

[0066] S3. The second servo motor 12 starts rotating according to the spinning parameters, driving the ring 10 to rise and fall. The control system obtains the rotational speed V2 of the second servo motor 12. The control system adopts a PLC, according to the formula:

[0067] V1 = d2 × V2 / d1;

[0068] The rotational speed V1 of the first servo motor 11 is obtained;

[0069] In the formula: d2 is the transmission ratio between the second servo motor 12 and the second lead screw 5, and d1 is the transmission ratio between the first servo motor 11 and the first lead screw 3; for example: Figure 5 As shown in the figure, the horizontal axis represents time s, and the numerical axis represents the elevation rise and fall. Among them, h1 is the elevation rise and fall of the guide hook 7, and h2 is the elevation rise and fall of the steel collar 10.

[0070] Preferred solutions include Figure 5 In this process, the rotational speed V2 of the second servo motor 12 is a non-linear curve. During one reciprocating motion of the steel collar 10, the rotational speed V2 of the second servo motor 12 is successively divided into a low acceleration segment, a high acceleration segment, a low acceleration segment to maximum speed, a low deceleration segment, a high deceleration segment, a low deceleration segment to 0 speed, a reversal segment, a low acceleration segment, a high acceleration segment, a low acceleration segment to maximum speed, a low deceleration segment, a high deceleration segment, a low deceleration segment to 0 speed; Therefore, as per this scheme, Figure 6 As shown, during the raising and lowering of the ring 10, the yarn guide hook 7 rises and falls accordingly, and the yarn air ring 19 maintains a roughly constant shape. This ensures uniform tension during the spinning process.

[0071] In another alternative scheme, the second servo motor 12 may start rotating according to the spinning parameters, the control system may obtain the rotational speed V2 of the second servo motor 12, drive the first servo motor 11 to rotate in the same direction according to the data of the distance sensor, and make the data of the distance sensor change according to the preset value δ;

[0072] Preferably, the preset value δ, in one reciprocating motion of the ring 10, is divided into: synchronous segment, proportional approach segment, synchronous segment to the highest point, reversal, synchronous segment, proportional distance segment, and synchronous segment to the lowest point. Using a distance sensor makes feedback control easier. Due to spatial limitations, the lifting stroke of the yarn guide hook 7 is shorter than that of the ring 10, making synchronous lifting impossible to maintain a stable yarn loop 19 shape. Therefore, the control method in this example is used, through... Figure 5 The non-linear follow-up speed regulation or the roughly proportional follow-up speed regulation scheme shown in the speed curve can avoid instantaneous tension changes caused by the reversal of the yarn guide hook 7 and the steel ring 10 during the lifting and lowering process, and ensure tension balance.

[0073] S3. When the second servo motor 12 reverses direction, the first servo motor 11 also reverses direction.

[0074] The above steps ensure uniform tension during the spinning process.

[0075] In the preferred embodiment, when spinning is complete and the yarn roll 21 needs to be removed, the control system drives the first servo motor 11 to rotate, so that the leaf plate crossbeam 8 rises to the highest position.

[0076] The control system drives the second servo motor 12 to rotate, causing the steel ring 10 to descend to its lowest position.

[0077] Example 3:

[0078] In actual operation, such as Figure 4 As shown, the yarn is introduced from the guide hook 7, passes around the nylon hook 20, and connects to the yarn drum 21. The spindle motor 22 starts first, and the yarn first winds a portion of the tail yarn onto the yarn drum 21. During the winding process, the yarn simultaneously drives the nylon hook 20 to make a circular motion along the steel ring 10, so as to obtain partial tension buffering through the sliding friction between the nylon hook 20 and the steel ring 10, and form a yarn air ring 19. Then the steel ring 10 begins to move upward, according to... Figure 5 The speed control curve is calculated using a formula or based on the detection data from the distance sensor. The yarn guide hook 7 moves upwards accordingly, keeping the shape of the yarn loop 19 unchanged. When the ring 10 begins to move downwards, the yarn guide hook 7 moves downwards as well. When the yarn roll 21 is finished processing, the spindle motor 22 stops, the ring 10 moves downwards to a low position, and the yarn guide hook 7 moves upwards to a high position, facilitating manual or automated equipment removal of the yarn roll 21.

[0079] The above embodiments are merely preferred technical solutions of the present invention and should not be considered as limitations on the present invention. The scope of protection of the present invention should be limited to the technical solutions described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. A control method for a dual-path, dual-drive adjustable spinning device, characterized in that: It includes a first lead screw (3) and a second lead screw (5) arranged in parallel. The first lead screw (3) is connected to the first servo motor (11), and the second lead screw (5) is connected to the second servo motor (12). A first transmission nut seat (2) is provided on the first lead screw (3), and the first transmission nut seat (2) is threadedly connected to the first lead screw (3). A second transmission nut seat (4) is provided on the second lead screw (5), and the second transmission nut seat (4) is threadedly connected to the second lead screw (5). The first transmission nut seat (2) is used to connect with the leaf plate crossbeam (8), and the leaf plate crossbeam (8) is provided with a yarn guide hook (7). The second transmission nut seat (4) is used to connect with the steel collar plate crossbeam (9), and the steel collar plate crossbeam (9) is provided with a steel collar (10). During the spinning process, the displacement of the guide hook (7) is adjusted according to the displacement of the ring (10) so that the shape of the yarn loop (19) remains stable. Includes the following steps: S1. Start the spindle motor (22) to drive the yarn drum (21) to rotate; S2. Obtain the yarn type and set the lifting stroke parameters of the ring (10); S3. The second servo motor (12) starts to rotate according to the spinning parameters, driving the ring (10) to rise and fall. The control system obtains the rotation speed of the second servo motor (12). According to the formula: ； The rotational speed of the first servo motor (11) is obtained. ; In the formula: The transmission ratio between the second servo motor (12) and the second lead screw (5) is... The transmission ratio between the first servo motor (11) and the first lead screw (3); S4. When the second servo motor (12) reverses direction, the first servo motor (11) also reverses direction. The above steps achieve uniform tension during the spinning process; The speed of the second servo motor (12) For a nonlinear curve, during one reciprocating motion of the steel collar (10), the rotational speed of the second servo motor (12) is... The sequence is divided into low acceleration, high acceleration, low acceleration to maximum speed, low deceleration, high deceleration, low deceleration to 0 speed, reversal, low acceleration, high acceleration, low acceleration to maximum speed, low deceleration, high deceleration, low deceleration to 0 speed.

2. A control method for a dual-path, dual-drive adjustable spinning device, characterized in that: It includes a first lead screw (3) and a second lead screw (5) arranged in parallel. The first lead screw (3) is connected to the first servo motor (11), and the second lead screw (5) is connected to the second servo motor (12). A first transmission nut seat (2) is provided on the first lead screw (3), and the first transmission nut seat (2) is threadedly connected to the first lead screw (3). A second transmission nut seat (4) is provided on the second lead screw (5), and the second transmission nut seat (4) is threadedly connected to the second lead screw (5). The first transmission nut seat (2) is used to connect with the leaf plate crossbeam (8), and the leaf plate crossbeam (8) is provided with a yarn guide hook (7). The second transmission nut seat (4) is used to connect with the steel collar plate crossbeam (9), and the steel collar plate crossbeam (9) is provided with a steel collar (10). During the spinning process, the displacement of the guide hook (7) is adjusted according to the displacement of the ring (10) so that the shape of the yarn loop (19) remains stable. Includes the following steps: S1. Start the spindle motor (22) to drive the yarn drum (21) to rotate; S2. Obtain the yarn type and set the lifting stroke parameters of the ring (10); S3. The second servo motor (12) starts to rotate according to the spinning parameters, and the control system obtains the rotation speed of the second servo motor (12). Based on the data from the distance sensor, the first servo motor (11) is driven to rotate in the same direction, and the data from the distance sensor changes according to a preset value δ. S4. When the second servo motor (12) reverses direction, the first servo motor (11) also reverses direction. The above steps achieve uniform tension during the spinning process; The preset value δ is divided into the following segments in one reciprocating motion of the steel collar (10): synchronous segment, proportional approach segment, synchronous segment to the highest level, reversal, synchronous segment, proportional distance segment, and synchronous segment to the lowest level.

3. The control method for the dual-path dual-drive adjustable spinning device according to claim 1 or 2, characterized in that: When spinning is complete and the yarn roll (21) needs to be removed, the control system drives the first servo motor (11) to rotate, so that the leaf plate beam (8) rises to the highest position. The control system drives the second servo motor (12) to rotate, so that the steel collar (10) is lowered to the lowest position.

4. The control method for a dual-path dual-drive adjustable spinning device according to claim 1 or 2, characterized in that: The connection positions of the first transmission nut seat (2) and the second transmission nut seat (4) are located on the same side; The first transmission nut seat (2) is provided with a through hole, and the second lead screw (5) is located in the through hole so that the connection position of the first transmission nut seat (2) and the second transmission nut seat (4) is on the same side; One end of the first lead screw (3) and the second lead screw (5) is supported on the first bearing seat (1), and the other end of the first lead screw (3) and the second lead screw (5) is supported on the second bearing seat (6). The first servo motor (11) is connected to the first lead screw (3) through a reduction transmission mechanism; The second servo motor (12) is connected to the second lead screw (5) through a speed reduction transmission mechanism.

5. The control method for a dual-path dual-drive adjustable spinning device according to claim 4, characterized in that: The transmission ratio of the reduction transmission mechanism between the first servo motor (11) and the first lead screw (3) is 3~5:1, and the transmission ratio between the second servo motor (12) and the second lead screw (5) is 3~8:

1.

6. The control method for a dual-path dual-drive adjustable spinning device according to claim 5, characterized in that: The first servo motor (11) is connected to the first drive wheel (14). The first drive wheel (14) is connected to the first transmission wheel (13) via a synchronous belt. The first transmission wheel (13) is coaxially connected to the second transmission wheel (15). The second transmission wheel (15) is connected to the third transmission wheel (16) via a synchronous belt. The third transmission wheel (16) is connected to the first lead screw (3). The diameter of the first drive wheel (14) is smaller than the diameter of the first transmission wheel (13). The diameter of the first transmission wheel (13) is larger than the diameter of the second transmission wheel (15). The diameter of the second transmission wheel (15) is smaller than the diameter of the third transmission wheel (16). The second servo motor (12) is connected to the reduction mechanism (23), the reduction mechanism (23) is connected to the second drive wheel (18), the second drive wheel (18) is connected to the fourth transmission wheel (17) through a synchronous belt, and the diameter of the fourth transmission wheel (17) is smaller than the diameter of the second drive wheel (18).

7. A control method for a dual-path, dual-drive adjustable spinning device according to claim 1 or 2, characterized in that: A distance sensor is provided between the first transmission nut seat (2) and the second transmission nut seat (4). The distance sensor is an infrared or laser reflective distance sensor.

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