Double-path double-drive adjustable spinning device

Abstract

The utility model provides a double-path double-drive adjustable spinning device which comprises a first lead screw and a second lead screw which are 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 and is in threaded connection with the first lead screw, and a second transmission nut seat is arranged on the second lead screw and is in threaded connection with the second lead screw. The second lead screw is provided with a second transmission nut seat, and the second transmission nut seat is in threaded connection with the second lead screw; the first transmission nut seat is used for being connected with a fender cross beam, a yarn guide hook is arranged on the fender cross beam, the second transmission nut seat is used for being connected with a steel collar plate cross beam, and a steel collar is arranged on the steel collar plate cross beam. When different types of raw filaments are replaced, the distance between the yarn guide hook and the steel collar can be adjusted at any time through a control program, and the process requirement for twisting different types of raw filaments and the requirement for twisted yarn quality are met. In addition, the distance between the yarn guide hook and the steel collar can be roughly changed in proportion, a roughly constant yarn ballooning form is maintained, and wool yarn is reduced.

Description

Technical Field

[0001] The utility model relates to the field of spinning, in particular to a dual-path dual-drive adjustable spinning device. Background Art

[0002] Most of the existing fiberglass twisting lifting transmission structures use a double-way screw structure, which has the advantages of high transmission accuracy. A servo motor drives the double-way screw to reciprocate. Affected by the lifting space, there is a transmission differential ratio between the leaf plate screw and the steel collar plate screw to make up for the shortcomings in the spinning stroke. When the diameter of the steel collar and the size of the yarn guide hook remain unchanged, the height of the twisting balloon changes continuously with the change of the spacing between the leaf plate beam and the steel collar plate beam, resulting in a continuous change in the balloon shape, such as Figure 7 As shown in , the spinning tension in the spinning process keeps fluctuating and changing with the change of the balloon, resulting in uneven tension in the spinning process, making the hardness and density of the wound yarn tube inconsistent, seriously affecting the product quality. The prior art adopts a solution of setting a tension regulator in the yarn threading route to reduce the fluctuation of the balloon, but there is a delay in the process from detecting the shape of the yarn balloon to adjusting the tension and then feeding back to the shape of the yarn balloon. This solution is difficult to eliminate the change of the balloon, so that the problem of uneven tension still exists in the spinning process.

[0003] A further technical problem is that in the traditional single-motor dual-path lifting transmission structure and the clutch structure controlled by a single motor, the distance between the fender beam and the steel collar beam cannot be adjusted in real time using a program. As a result, when spinning different types of yarns, the heights of the fender beam and the steel collar beam remain unchanged. Except for replacing the synchronous pulley, it is difficult to make adjustments. Such a structure has a certain impact on the quality of the product. For example, the above problems exist in CN102817120A and CN104514049A. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a dual-path dual-drive adjustable spinning device, which can conveniently adjust the distance between the yarn guide hook and the steel collar according to the yarn variety, and can make the processed yarn reel hardness and density uniform, effectively ensuring the quality of the product.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a dual-path dual-drive adjustable spinning device, comprising a first lead screw and a second lead screw arranged in parallel, the first lead screw is connected to a first servo motor, the second lead screw is connected to a second servo motor, a first transmission nut seat is provided on the first lead screw, the first transmission nut seat is threadedly connected to the first lead screw, a second transmission nut seat is provided on the second lead screw, and the second transmission nut seat is threadedly connected to the second lead screw;

[0006] The first transmission nut seat is used to connect with the fender cross beam, on which a yarn guide hook is arranged, and the second transmission nut seat is used to connect with the steel collar plate cross beam, on which a steel collar is arranged.

[0007] In a preferred solution, the connection positions of the first transmission nut seat and the second transmission nut seat are located on the same side;

[0008] 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 position of the first transmission nut seat and the second transmission nut seat is located on the same side.

[0009] In a preferred solution, one end of the first screw and the second screw is supported on the first bearing seat, and the other end of the first screw and the second screw is supported on the second bearing seat;

[0010] The first servo motor is connected to the first lead screw through a reduction transmission mechanism;

[0011] The second servo motor is connected to the second lead screw through a reduction transmission mechanism.

[0012] 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 of the second servo motor and the second lead screw is 3-8:1.

[0013] In a preferred solution, the first servo motor is connected to the first driving wheel, the first driving wheel is connected to the first transmission wheel through 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 through a synchronous belt, the third transmission wheel is connected to the first lead screw, the diameter of the first driving 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;

[0014] The second servo motor is connected to the speed reduction mechanism, the speed reduction mechanism is connected to the second driving wheel, the second driving wheel is connected to the fourth transmission wheel through a synchronous belt, and the diameter of the fourth transmission wheel is smaller than the diameter of the second driving wheel.

[0015] In a preferred solution, a distance sensor is provided between the first transmission nut seat and the second transmission nut seat.

[0016] The utility model provides a dual-path dual-drive adjustable spinning device, which has the following technical effects compared with the prior art:

[0017] 1. When replacing different types of raw yarns, it is only necessary to control the lifting speed and direction of the first lead screw by controlling the first servo motor and the lifting speed and direction of the second lead screw by controlling the second servo motor in the control program of the control device, so as to adjust the distance between the cross beam of the steel collar plate and the cross beam of the fender plate; for this reason, the distance between the yarn guide hook and the steel collar can be adjusted at any time through the control program, which meets the process requirements of twisting different types of raw yarns and the quality requirements of the twisted line.

[0018] 2. When the first servo motor and the second servo motor respectively control the lifting and lowering of the first transmission nut seat and the second transmission nut seat, the distance between the yarn guide hook and the steel collar is roughly kept in proportional change, maintaining a roughly constant yarn balloon shape, achieving the purpose of constant tension spinning, and reducing the generation of yarn wool.

[0019] 3. Through the above transmission structure, the first servo motor controls the first screw to raise the leaf plate beam to the highest position, and the second servo motor controls the second screw to lower the collar plate beam to the lowest position, thereby maximizing the distance between the two and leaving sufficient space for subsequent manual or automatic yarn taking. The function of increasing the yarn taking space is realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0021] Figure 1 It is a three-dimensional diagram of the utility model.

[0022] Figure 2 It is the front view of the utility model.

[0023] Figure 3 It is a left view of the utility model.

[0024] Figure 4 The utility model is a schematic diagram of the structure installed in a spinning machine.

[0025] Figure 5 This is a control curve diagram of the lifting height and lifting speed of the yarn guide hook and the steel collar in the utility model

[0026] Figure 6 It is a schematic diagram showing that the shape of the yarn balloon of the utility model changes as the yarn guide hook and the steel collar rise and fall.

[0027] Figure 7 It is a schematic diagram of the change of the shape of the yarn balloon as the steel ring rises and falls in the prior art.

[0028] In the figure, a first bearing seat 1, a first transmission nut seat 2, a first lead screw 3, a second transmission nut seat 4, a second lead screw 5, a second bearing seat 6, a yarn guide hook 7, a leaf plate beam 8, a steel collar plate beam 9, a steel collar 10, a first servo motor 11, a second servo motor 12, a first transmission wheel 13, a first driving wheel 14, a second transmission wheel 15, a third transmission wheel 16, a fourth transmission wheel 17, a second driving wheel 18, a yarn balloon 19, a nylon hook 20, a yarn reel 21, a spindle motor 22, and a reduction mechanism 23. DETAILED DESCRIPTION

[0029] Embodiment 1:

[0030] like Figures 1 to 3 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, 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, 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;

[0031] The preferred solution is Figure 2 In the embodiment, the first transmission nut seat 2 is used to connect with the fender cross beam 8, on which the yarn guide hook 7 is provided, and the second transmission nut seat 4 is used to connect with the steel collar plate cross beam 9, on which the steel collar plate cross beam 9 is provided with a steel collar 10. A movable nylon hook 20 is provided on the steel collar 10. The yarn passes through the nylon hook 20 and is connected to the yarn reel 21, and the nylon hook 20 is pulled by the yarn to rotate around the steel collar 10.

[0032] The preferred solution is Figure 2 In the figure, the connection positions of the first transmission nut seat 2 and the second transmission nut seat 4 are located on the same side; with this structure, the first transmission nut seat 2 and the second transmission nut seat 4 can be driven to rise and fall independently.

[0033] The preferred solution is Figure 1 In the embodiment, 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 positions of the first transmission nut seat 2 and the second transmission nut seat 4 are located on the same side.

[0034] One end of the first screw 3 and the second screw 5 is supported on the first bearing seat 1, and the other end of the first screw 3 and the second screw 5 is supported on the second bearing seat 6;

[0035] The first servo motor 11 is connected to the first lead screw 3 through a reduction transmission mechanism;

[0036] The second servo motor 12 is connected to the second lead screw 5 via a reduction transmission mechanism.

[0037] 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 of the second servo motor 12 and the second lead screw 5 is 3-8:1.

[0038] The preferred solution is Figure 1 , 3 In the embodiment, the first servo motor 11 is connected to the first driving wheel 14, the first driving wheel 14 is connected to the first transmission wheel 13 through 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 through a synchronous belt, the third transmission wheel 16 is connected to the first lead screw 3, the diameter of the first driving 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, and the diameter of the second transmission wheel 15 is smaller than the diameter of the third transmission wheel 16;

[0039] The second servo motor 12 is connected to the speed reduction mechanism 23, which is connected to the second driving wheel 18. The second driving 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 that of the second driving wheel 18. Preferably, the speed reduction mechanism 23 is a planetary gear reducer.

[0040] In a preferred solution, 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, the distance sensor adopts an infrared or laser reflection distance sensor. The use of the distance sensor can prevent the failure of the first servo motor 11 or the second servo motor 12 from affecting the spinning quality.

[0041] Embodiment 2:

[0042] In order to better understand the technical advantages of this utility model, Figure 4 , 5 As shown in the figure, a control method using the above-mentioned dual-path dual-drive adjustable spinning device includes the following steps: during the spinning process, according to the displacement of the steel collar 10, the displacement of the yarn guide hook 7 is adjusted to keep the shape of the yarn balloon 19 stable.

[0043] In the preferred solution, the specific steps include:

[0044] S1, start the spindle motor 22 to drive the yarn reel 21 to rotate;

[0045] S2, obtaining the spinning variety, and setting the lifting and lowering stroke parameters of the steel ring 10 according to the corresponding process parameters of the spinning variety;

[0046] S3, the second servo motor 12 starts to rotate according to the spinning parameters, driving the steel ring 10 to rise and fall, and the control system obtains the speed V2 of the second servo motor 12. The control system adopts PLC, according to the formula:

[0047] V1=d2×V2 / d1;

[0048] Obtaining the rotation speed V1 of the first servo motor 11;

[0049] Wherein: 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; Figure 5 As shown in , the horizontal axis is time s, and the numerical axis is the lifting height, wherein h1 is the lifting height of the yarn guide hook 7, and h2 is the lifting height of the steel ring 10.

[0050] In another optional solution, the second servo motor 12 starts to rotate according to the spinning parameters, and the control system obtains the rotation speed V2 of the second servo motor 12, drives the first servo motor 11 to rotate in the same direction according to the data of the distance sensor, and changes the data of the distance sensor according to the preset value δ;

[0051] S3, when the second servo motor 12 changes direction, the first servo motor 11 changes direction accordingly;

[0052] The above steps can achieve uniform tension during the spinning process.

[0053] The preferred solution is Figure 5 In the embodiment, the rotation speed V2 of the second servo motor 12 is a nonlinear curve. In one reciprocating motion of the steel collar 10, the rotation speed V2 of the second servo motor 12 is sequentially divided into a low acceleration section, a high acceleration section, a low acceleration section to a maximum speed, a low deceleration section, a high deceleration section, a low deceleration section, to a speed of 0, a reversal, a low acceleration section, a high acceleration section, a low acceleration section to a maximum speed, a low deceleration section, a high deceleration section, and a low deceleration section to a speed of 0; according to this scheme, Figure 6 As shown in FIG. 1 , during the lifting and lowering process of the steel ring 10, the yarn guide hook 7 is lifted and lowered accordingly, and the yarn balloon 19 maintains a substantially constant shape. This ensures uniform tension during the spinning process.

[0054] The preset value δ is divided into: synchronization section, proportional approach section, synchronization section to the highest range, reversal, synchronization section, proportional distance section, and synchronization section to the lowest range in one reciprocating motion of the steel ring 10. The distance sensor solution is easier to control by feedback. Due to the limitation of the spatial position, the lifting stroke of the yarn guide hook 7 is shorter than the lifting stroke of the steel ring 10, and it is impossible to maintain a stable shape of the yarn balloon 19 by synchronous lifting. The control method in this example is adopted, by Figure 5 The nonlinear speed control of the speed curve shown in the figure or the approximately proportional speed control scheme can avoid the instantaneous tension change caused by the reversal of the yarn guide hook 7 and the steel ring 10 during the lifting process, and ensure the tension balance.

[0055] In a preferred solution, when spinning is completed and the yarn reel 21 needs to be taken out, the control system drives the first servo motor 11 to rotate until the fender beam 8 rises to the highest position;

[0056] The control system drives the second servo motor 12 to rotate until the steel ring 10 descends to the lowest position.

[0057] Embodiment 3:

[0058] In actual operation, Figure 4 As shown in the figure, the yarn is introduced from the yarn guide hook 7, passes around the nylon hook 20, and the yarn is connected to the yarn reel 21. The spindle motor 22 is started first, and the yarn is first wound around a part of the tail yarn on the yarn reel 21. During the winding process, the yarn drives the nylon hook 20 to move in a circular manner along the steel collar 10, so as to obtain partial tension buffering through the sliding friction between the nylon hook 20 and the steel collar 10, and form a yarn balloon 19, and then the steel collar 10 starts to move upward, according to Figure 5 The speed control curve is combined with the formula calculation or according to the detection data of the distance sensor, the yarn guide hook 7 moves upward accordingly, so that the shape of the yarn balloon 19 remains unchanged. When the steel collar 10 starts to move downward, the yarn guide hook 7 moves downward accordingly. When the yarn reel 21 is processed, the spindle motor 22 stops, the steel collar 10 moves downward to a low position, and the yarn guide hook 7 moves upward to a high position, so that it is convenient for manual or automated equipment to take out the yarn reel 21.

[0059] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A dual-path dual-drive adjustable spinning device, characterized in that: The invention comprises a first lead screw (3) and a second lead screw (5) arranged in parallel, the first lead screw (3) being connected to a first servo motor (11), the second lead screw (5) being connected to a second servo motor (12), a first transmission nut seat (2) being provided on the first lead screw (3), the first transmission nut seat (2) being threadedly connected to the first lead screw (3), a second transmission nut seat (4) being provided on the second lead screw (5), the second transmission nut seat (4) being threadedly connected to the second lead screw (5); The first transmission nut seat (2) is used to connect with the fender crossbeam (8), and the fender 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).

2. A dual-path dual-drive adjustable spinning device according to claim 1, 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 located on the same side.

3. A dual-path dual-drive adjustable spinning device according to claim 1, characterized in that: 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) via a reduction transmission mechanism; The second servo motor (12) is connected to the second lead screw (5) via a reduction transmission mechanism.

4. A dual-path dual-drive adjustable spinning device according to claim 3, 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 of the second servo motor (12) and the second lead screw (5) is 3-8:

1.

5. A dual-path dual-drive adjustable spinning device according to claim 4, characterized in that: The first servo motor (11) is connected to the first driving wheel (14), the first driving 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 driving 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), and 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 speed reduction mechanism (23), the speed reduction mechanism (23) is connected to the second driving wheel (18), the second driving wheel (18) is connected to the fourth transmission wheel (17) via a synchronous belt, and the diameter of the fourth transmission wheel (17) is smaller than the diameter of the second driving wheel (18).

6. A dual-path dual-drive adjustable spinning device according to claim 1, characterized in that: A distance sensor is provided between the first transmission nut seat (2) and the second transmission nut seat (4).

7. A dual-path dual-drive adjustable spinning device according to claim 6, characterized in that: The distance sensor is an infrared or laser reflection distance sensor.

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