Composite cotton web preparation system capable of preventing wrinkles

Abstract

The utility model discloses a composite cotton web preparation system capable of preventing wrinkles, and belongs to the technical field of composite cloth production equipment. Comprising a drawing machine, an unreeling machine, a carding machine, a spunlace machine, a conveying web curtain I, a conveying web curtain II, a conveying web curtain III, a conveying web curtain IV and a conveying web curtain V, a cloth guide roller I, a cloth guide roller II, a cloth guide roller III, a cloth guide roller IV and a drafting roller set used for attaching a fiber web I on a drafting machine to an unwinding product are sequentially arranged on the unwinding machine in the conveying direction of the unwinding product. A cloth guide roller V and a cloth guide roller VI used for attaching the fiber web II to the unwinding product-fiber web I are sequentially arranged in the conveying direction of the fiber web II on the carding machine. Through reasonable arrangement of the unreeling machine, the drawing machine, the carding machine, the spunlace machine, the conveying web curtains, the cloth guide roller set, the drawing roller set and the like, the problem of wrinkles occurring in the preparation process of the composite web is solved, and meanwhile stable, orderly and controllable production of the composite web is achieved.

Description

Technical Field

[0001] The utility model relates to a composite cotton web preparation system, in particular to a composite cotton web preparation system capable of preventing wrinkles, and belongs to the technical field of composite cloth production equipment. Background Art

[0002] Composite cotton mesh is a new type of material formed by laminating one or more layers of fiber mesh with other functional unwinding materials (such as antibacterial fiber mesh, flame retardant fiber mesh, etc.) and then spunlacing. It is suitable for making textiles such as sofas and clothing, and is one of the indispensable fabrics for people's home life.

[0003] Among them, for composite cotton mesh products of different degrees, wrinkles will appear in the process of conveying each fiber mesh, and these wrinkles will become irregular spots or lines after being formed by the spunlace process, so that the quality requirements of the composite cloth cannot be met.

[0004] Although the prior art CN210341360U discloses "a wrinkle-proof device for composite fabrics", it only solves the problem that the composite fabric will wrinkle after drying, which affects the quality of the composite fabric; and CN210657595U discloses "a novel wrinkle-proof stretching device for composite cotton and linen fabrics", which solves the technical problem that the current wrinkle-proof stretching device directly uses roller pressure to prevent wrinkles, but the wrinkles will recover once the tension disappears. That is, the prior art is mostly used to solve the wrinkle problem of composite fabrics, but does not solve the wrinkle problem in the process of composite cotton web closure. In addition, the prior art CN107099933A provides a production process for non-woven fabrics with a wrinkled surface structure, and it produces non-woven fabrics with a wrinkled surface structure in one step on a spunlace production line. Summary of the invention

[0005] In order to ensure that the composite fabric product does not have spots or streaks, that is, to solve the wrinkle problem of each fiber web before the spunlace process, the utility model proposes a wrinkle-proof composite cotton web preparation system. In this technical solution, the wrinkle problem in the preparation of the composite cotton web is solved through the reasonable arrangement of the unwinding machine, the drafting machine, the carding machine, the spunlace machine, the conveying net curtains, the cloth guide roller group and the drafting roller group.

[0006] In order to achieve the above technical objectives, the following technical solutions are proposed:

[0007] A wrinkle-proof composite cotton web preparation system comprises a drafting machine, an unwinding machine, a carding machine and a spunlacing machine, wherein a conveying net curtain I is arranged at a discharge port end of the drafting machine, the conveying net curtain I is arranged obliquely downward, and the unwinding machine is arranged at one side of the station of the drafting machine; a conveying net curtain II is arranged at the rear side of the station of the conveying net curtain I, the conveying net curtain II is arranged in a horizontal direction, and the carding machine is arranged at one side of the station of the conveying net curtain II; a conveying net curtain III is arranged at the rear side of the station of the conveying net curtain II, the conveying net curtain III is arranged obliquely upward; a conveying net curtain IV is arranged at the rear side of the station of the conveying net curtain III, the conveying net curtain IV is arranged in a horizontal direction, and the spunlacing machine is arranged at the rear side of the station of the conveying net curtain IV; a conveying net curtain V is arranged at the discharge port end of the carding machine, the conveying net curtain V is arranged obliquely downward, and the conveying net curtain V is arranged at the front side of the station of the conveying net curtain IV;

[0008] In the conveying direction of the unwinding product on the unwinding machine, cloth guide rollers Ⅰ, Ⅱ, Ⅲ, Ⅳ and a drafting roller group for laminating the fiber web Ⅰ on the drafting machine with the unwinding product are arranged in sequence. Cloth guide roller Ⅰ is arranged near the discharge port of the unwinding machine, cloth guide roller Ⅱ is arranged near the discharge port of the conveying net curtain Ⅰ, cloth guide roller Ⅲ is arranged near the feed port of the conveying net curtain Ⅱ, cloth guide roller Ⅳ is arranged between the discharge port of the conveying net curtain Ⅱ and the feed port of the conveying net curtain Ⅲ, and the drafting roller group is arranged just above the conveying net curtain Ⅲ;

[0009] The fiber web II on the carding machine is sequentially provided with a cloth guide roller V and a cloth guide roller VI for laminating the fiber web II with the unwinding product - fiber web I. The cloth guide roller V is arranged near the discharge port of the conveying net curtain V, and the cloth guide roller VI is arranged between the discharge port of the conveying net curtain III and the feed port of the conveying net curtain IV, and the cloth guide roller VI is arranged at the rear side of the station of the drafting roller group;

[0010] A continuous passage for conveying the fiber web I is formed between the drafting machine, the conveying net curtain I, the conveying net curtain II, the conveying net curtain III and the conveying net curtain IV;

[0011] A continuous passage for conveying unwinding products is formed between the unwinding machine, the cloth guide roller I, the cloth guide roller II, the cloth guide roller III, the cloth guide roller IV, the drafting roller group, the conveying net curtain III and the conveying net curtain IV;

[0012] A continuous passage for conveying the fiber web II is formed between the carding machine, the conveying mesh curtain V, the cloth guide roller V, the cloth guide roller VI and the conveying mesh curtain IV.

[0013] Furthermore, the unwinding machine is arranged on the unwinding platform, and the carding machine is arranged on the carding platform. This arrangement ensures that the unwinding machine is arranged at a high position, that is, the unwinding machine has a certain horizontal height, that is, it is convenient to arrange the cloth guide rollers I, II, III, IV and the drafting roller group in the conveying direction of the unwinding product, thereby realizing the effective transmission of the unwinding product and preventing the unwinding product from wrinkling, that is, indirectly ensuring the stability and sustainability of the wrinkle-proof composite cotton web preparation process; and, it ensures that the carding machines are arranged at a high position, that is, the carding machines have a certain horizontal height, that is, it is convenient to arrange the conveying net curtain V, cloth guide roller V and cloth guide roller VI in the conveying direction of the fiber web II, thereby realizing the effective transmission of the fiber web II and preventing the fiber web II from wrinkling, that is, indirectly ensuring the stability and sustainability of the wrinkle-proof composite cotton web preparation process.

[0014] Furthermore, the projection point of the drafting roller group on the surface where the conveying mesh curtain III is located is the midpoint of the conveying mesh curtain III. This setting ensures that after the fiber web I is bonded with the unwinding product, it is transported a certain distance through the conveying mesh curtain III, and then the fiber web II is bonded with the unwinding product - fiber web I, that is, the orderliness and controllability of the bonding of the fiber web I, the unwinding product and the fiber web II are ensured, and the formation of wrinkles is effectively avoided.

[0015] Furthermore, the drafting roller group includes drafting roller I, drafting roller II and drafting roller III, drafting roller II is arranged at the rear side of the workstation of drafting roller I, drafting roller III is arranged at the rear side of the workstation of drafting roller II, cloth guide roller VI is arranged at the rear side of the workstation of drafting roller III, and drafting roller II is connected to a power motor. Among them, the function of drafting roller II is to draft and straighten the unwinding product, and the power motor provides power for drafting roller II; the arrangement of drafting roller I and drafting roller III increases the wrap angle between the unwinding product and drafting roller II, that is, increases the contact area, that is, increases the friction;

[0016] A continuous passage for conveying the unwinding product is formed between the lower side of the drafting roller I, the upper side of the drafting roller II and the lower side of the drafting roller III.

[0017] Furthermore, the outer diameter of the stretching roller II is greater than the outer diameter of the stretching roller I and greater than the outer diameter of the stretching roller III, the distance between the stretching roller II and the conveying mesh curtain III is greater than the distance between the stretching roller I and the conveying mesh curtain III and the distance between the stretching roller III and the conveying mesh curtain III. This arrangement ensures that the unrolled product is effectively stretched and effectively bonded to the fiber web I, thereby avoiding the formation of wrinkles.

[0018] Furthermore, the surfaces of the drafting rollers I, II and III are all provided with a rubber layer, which increases the friction between the corresponding drafting rollers and the unwinding product, ensures the drafting reliability, and effectively reduces wrinkles. In addition, the surfaces of the drafting rollers I, II and III are also provided with grooves for arc expansion, which eliminate the wrinkles that may exist in the original unwinding product during the unwinding process, thereby solving the problem of wrinkling of the composite cotton web.

[0019] Furthermore, at the joining point between the fiber web I and the unrolled product, the angle between the fiber web I and the unrolled product is θ1, and 0<θ1<90°.

[0020] Furthermore, at the joining point between the fiber web II and the unwinding product - the fiber web I, the angle between the fiber web II and the unwinding product - the fiber web I is θ2, 0<θ2<90°.

[0021] Furthermore, the cloth guide roller VI is arranged above the conveying mesh curtain III, and the cloth guide roller VI is arranged near the discharge port end of the conveying mesh curtain III.

[0022] The position relationships involved in this technical solution, such as "discharge port end", "inclined downward", "one side of the work station", "rear side of the work station", "horizontal direction", "inclined upward", "front side of the work station", "feed port end", "between", "above", "at", "lower side", and so on, are defined according to the situations under actual use conditions and are conventional terms in this technical field, and are also conventional terms used by technical personnel in this field in actual use.

[0023] The beneficial technical effects brought about by adopting this technical solution are:

[0024] 1. The utility model not only solves the wrinkle problem in the preparation of the composite cotton web through the reasonable arrangement of the unwinding machine, the drafting machine, the carding machine, the spunlacing machine, the conveying net curtains, the cloth guide roller group and the drafting roller group, but also realizes the stable, orderly and controllable production of the composite cotton web to meet the actual needs;

[0025] 2. The utility model has a wide range of applications, for example: the preparation system can also be used in the field of converting spunlace production lines into composite fabric production lines, and is not limited to the anti-wrinkle technical field of composite cotton webs such as composite cotton webs, composite cotton webs and non-woven fabrics, composite cotton webs and paper. At the same time, by simply adjusting the number and position of corresponding equipment in the preparation system, the preparation of two-layer composite cotton webs, three-layer composite cotton webs (composite cotton webs with sandwich structures), and four-layer composite cotton webs can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the arrangement of each device in the utility model;

[0027] Figure 2 for Figure 1 Enlarged view of the middle L part;

[0028] Figure 3 It is a structural schematic diagram of the drafting roller involved in the utility model (I);

[0029] Figure 4 It is a structural schematic diagram of the drafting roller involved in the utility model (II);

[0030] Figure 5 It is a structural schematic diagram of the cloth guide roller involved in the utility model;

[0031] In the figure, 1, drawing machine, 2, unwinding machine, 3, carding machine, 4, spunlace machine, 5, unwinding platform, 6, conveying net curtain I, 7, conveying net curtain II, 8, conveying net curtain III, 9, conveying net curtain IV, 10, conveying net curtain V, 11, cloth guide roller I, 12, cloth guide roller II, 13, cloth guide roller III, 14, cloth guide roller IV, 15, drawing roller group, 151, drawing roller I, 152, drawing roller II, 153, drawing roller III, 16, cloth guide roller V, 17, cloth guide roller VI, 18, power motor, 19, rubber layer, 20, groove, 21, fiber web I, 22, unwinding product, 23, fiber web II, 24, carding platform. DETAILED DESCRIPTION

[0032] The following is a clear and complete description of the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] Example 1

[0034] A wrinkle-proof composite cotton web preparation system comprises a drafting machine 1, an unwinding machine 2, a carding machine 3 and a spunlacing machine 4, wherein a conveying net curtain I6 is arranged at a discharge port end of the drafting machine 1, and the conveying net curtain I6 is arranged obliquely downward, and the unwinding machine 2 is arranged at one side of the station of the drafting machine 1; a conveying net curtain II7 is arranged at the rear side of the station of the conveying net curtain I6, and the conveying net curtain II7 is arranged in a horizontal direction, and the carding machine 3 is arranged at one side of the station of the conveying net curtain II7; a conveying net curtain III8 is arranged at the rear side of the station of the conveying net curtain II7, and the conveying net curtain III8 is arranged obliquely upward; a conveying net curtain IV9 is arranged at the rear side of the station of the conveying net curtain III8, and the conveying net curtain IV9 is arranged in a horizontal direction, and the spunlacing machine 4 is arranged at the rear side of the station of the conveying net curtain IV9; a conveying net curtain V10 is arranged at the discharge port end of the carding machine 3, and the conveying net curtain V10 is arranged obliquely downward, and the conveying net curtain V10 is arranged at the front side of the station of the conveying net curtain IV9;

[0035] The unwinding product 22 on the unwinding machine 2 is sequentially arranged with a cloth guide roller Ⅰ11, a cloth guide roller Ⅱ12, a cloth guide roller Ⅲ13, a cloth guide roller Ⅳ14 and a drafting roller group 15 for laminating the fiber web Ⅰ21 on the drafting machine 1 with the unwinding product 22. The cloth guide roller Ⅰ11 is arranged near the discharge end of the unwinding machine 2, the cloth guide roller Ⅱ12 is arranged near the discharge end of the conveying net curtain Ⅰ6, the cloth guide roller Ⅲ13 is arranged near the feed end of the conveying net curtain Ⅱ7, the cloth guide roller Ⅳ14 is arranged between the discharge end of the conveying net curtain Ⅱ7 and the feed end of the conveying net curtain Ⅲ8, and the drafting roller group 15 is arranged directly above the conveying net curtain Ⅲ8;

[0036] The fiber web II 23 on the carding machine 3 is sequentially provided with a cloth guide roller V16 and a cloth guide roller VI17 for laminating the fiber web II 23 with the unwinding product 22-fiber web I 21. The cloth guide roller V16 is arranged near the discharge port of the conveying net curtain V10, and the cloth guide roller VI17 is arranged between the discharge port of the conveying net curtain III8 and the feed port of the conveying net curtain IV9. The cloth guide roller VI17 is arranged at the rear side of the station of the drafting roller group 15.

[0037] A continuous passage for conveying the fiber web Ⅰ21 is formed between the drafting machine 1, the conveying net curtain Ⅰ6, the conveying net curtain Ⅱ7, the conveying net curtain Ⅲ8 and the conveying net curtain Ⅳ9;

[0038] A continuous passage for conveying the unwinding product 22 is formed between the unwinding machine 2, the cloth guide roller I 11, the cloth guide roller II 12, the cloth guide roller III 13, the cloth guide roller IV 14, the drafting roller group 15, the conveying net curtain III 8 and the conveying net curtain IV 9;

[0039] A continuous passage for conveying the fiber web II 23 is formed between the carding machine 3, the conveying mesh curtain V10, the cloth guide roller V16, the cloth guide roller VI17 and the conveying mesh curtain IV9.

[0040] Example 2

[0041] On the basis of Example 1, this example further limits the arrangement of the unwinding machine 2 and the carding machine 3 to further illustrate the technical solution.

[0042] The unwinding machine 2 is arranged on the unwinding platform 5, and the carding machine 3 is arranged on the carding platform 24. This arrangement ensures that the unwinding machine 2 is arranged at a high position, that is, the unwinding machine 2 has a certain horizontal height, that is, it is convenient to arrange the cloth guide roller I11, cloth guide roller II12, cloth guide roller III13, cloth guide roller IV14 and drafting roller group 15 in the conveying direction of the unwinding product 22, thereby realizing the effective transmission of the unwinding product 22 and preventing the unwinding product 22 from wrinkling, that is, indirectly ensuring the stability and sustainability of the wrinkle-proof composite cotton web preparation process; and, it ensures that the carding machine 3 is arranged at a high position, that is, the carding machine 3 has a certain horizontal height, that is, it is convenient to arrange the conveying net curtain V10, cloth guide roller V16 and cloth guide roller VI17 in the conveying direction of the fiber web II23, thereby realizing the effective transmission of the fiber web II23 and preventing the fiber web II23 from wrinkling, that is, indirectly ensuring the stability and sustainability of the wrinkle-proof composite cotton web preparation process.

[0043] Example 3

[0044] On the basis of Embodiments 1-2, this embodiment further defines the drafting roller group 15 to further illustrate the technical solution.

[0045] The projection point of the stretching roller group 15 on the surface where the conveying mesh curtain III8 is located is the midpoint of the conveying mesh curtain III8. This setting ensures that after the fiber web I21 is bonded with the unwinding product 22, it is transported a certain distance through the conveying mesh curtain III8, and then the fiber web II23 is bonded with the unwinding product 22-fiber web I21, that is, the orderliness and controllability of the bonding of the fiber web I21, the unwinding product 22 and the fiber web II23 are ensured, and the formation of wrinkles is effectively avoided.

[0046] More specifically, the drafting roller group 15 includes a drafting roller I 151, a drafting roller II 152 and a drafting roller III 153. The drafting roller II 152 is arranged at the rear side of the station of the drafting roller I 151, the drafting roller III 153 is arranged at the rear side of the station of the drafting roller II 152, the cloth guide roller VI 17 is arranged at the rear side of the station of the drafting roller III 153, and the drafting roller II 152 is connected to a power motor 18. Among them, the function of the drafting roller II 152 is to stretch and straighten the unwinding product 22, and the power motor 18 provides power for the drafting roller II 152; the arrangement of the drafting roller I 151 and the drafting roller III 153 increases the wrap angle between the unwinding product 22 and the drafting roller II 152, that is, increases the contact area, that is, increases the friction;

[0047] A continuous passage for conveying the unwinding product 22 is formed between the lower side of the drafting roller Ⅰ151, the upper side of the drafting roller Ⅱ152 and the lower side of the drafting roller Ⅲ153.

[0048] In addition, the outer diameter of stretching roller II 152 is greater than the outer diameter of stretching roller I 151 and greater than the outer diameter of stretching roller III 153, the distance between stretching roller II 152 and conveying mesh curtain III 8 is greater than the distance between stretching roller I 151 and conveying mesh curtain III 8 and greater than the distance between stretching roller III 153 and conveying mesh curtain III 8. This arrangement ensures that the unrolled product 22 is effectively stretched and effectively bonded to the fiber web I 21, thereby avoiding the formation of wrinkles.

[0049] The surfaces of the drafting rollers Ⅰ151, Ⅱ152 and Ⅲ153 are all provided with a rubber layer 19, which increases the friction between the corresponding drafting rollers and the unwinding product 22, ensures the drafting reliability, and effectively reduces wrinkles. In addition, the surfaces of the drafting rollers Ⅰ151, Ⅱ152 and Ⅲ153 are all provided with a groove 20 for arc expansion, the groove 20 is 3 cm wide and 1 cm deep, and the groove 20 eliminates the wrinkles that may exist in the original unwinding product 22 during the unwinding process, thereby solving the problem of wrinkling of the composite cotton web.

[0050] Example 4

[0051] On the basis of Examples 1-3, in order to ensure better lamination between the fiber web I 21, the unwinding product 22 and the fiber web II 23, and to ensure the stability and orderliness of the composite process, this example further defines:

[0052] At the joining point between the fiber web I 21 and the unrolled product 22, the angle between the fiber web I 21 and the unrolled product 22 is θ1, and 0<θ1<90°.

[0053] At the joining point between the fiber web II 23 and the unwinding product 22 - fiber web I 21 , the angle between the fiber web II 23 and the unwinding product 22 - fiber web I 21 is θ2, 0<θ2<90°.

[0054] Example 5

[0055] On the basis of embodiments 1-4, this embodiment further defines the cloth guide roller VI17 to further illustrate the technical solution.

[0056] The cloth guide roller VI17 is arranged above the conveying mesh curtain III8, and the cloth guide roller VI17 is arranged near the discharge port end of the conveying mesh curtain III8.

Claims

1. A wrinkle-proof composite cotton web preparation system, comprising a drafting machine (1), an unwinding machine (2), a carding machine (3) and a spunlacing machine (4), characterized in that: A conveying net curtain I (6) is provided at the discharge port end of the drawing machine (1), and the conveying net curtain I (6) is arranged in an inclined downward direction. The unwinding machine (2) is arranged at one side of the working station of the drawing machine (1); a conveying net curtain II (7) is provided at the rear side of the working station of the conveying net curtain I (6), and the conveying net curtain II (7) is arranged in a horizontal direction. The carding machine (3) is provided at one side of the working station of the conveying net curtain II (7); a conveying net curtain III (8) is provided at the rear side of the working station of the conveying net curtain II (7). The conveying net curtain III (8) is arranged upwardly in an inclined manner; a conveying net curtain IV (9) is arranged at the rear side of the working station of the conveying net curtain III (8), and the conveying net curtain IV (9) is arranged in a horizontal direction, and the water spunlace machine (4) is arranged at the rear side of the working station of the conveying net curtain IV (9); a conveying net curtain V (10) is arranged at the discharge port end of the carding machine (3), and the conveying net curtain V (10) is arranged downwardly in an inclined manner, and the conveying net curtain V (10) is arranged at the front side of the working station of the conveying net curtain IV (9); A cloth guide roller I (11), a cloth guide roller II (12), a cloth guide roller III (13), a cloth guide roller IV (14) and a drafting roller group (15) for bonding the fiber web I (21) on the drafting machine (1) to the unwinding product (22) are arranged in sequence in the conveying direction of the unwinding product (22) on the unwinding machine (2), the cloth guide roller I (11) is arranged near the discharge end of the unwinding machine (2), the cloth guide roller II (12) is arranged near the discharge end of the conveying net curtain I (6), the cloth guide roller III (13) is arranged near the feed end of the conveying net curtain II (7), the cloth guide roller IV (14) is arranged between the discharge end of the conveying net curtain II (7) and the feed end of the conveying net curtain III (8), and the drafting roller group (15) is arranged directly above the conveying net curtain III (8); A cloth guide roller V (16) and a cloth guide roller VI (17) for bonding the fiber web II (23) to the unwinding product (22) - fiber web I (21) are arranged in sequence on the carding machine (3) in the conveying direction of the fiber web II (23). The cloth guide roller V (16) is arranged near the discharge port of the conveying net curtain V (10), the cloth guide roller VI (17) is arranged between the discharge port of the conveying net curtain III (8) and the feed port of the conveying net curtain IV (9), and the cloth guide roller VI (17) is arranged at the rear side of the workstation of the drafting roller group (15); A continuous passage for conveying the fiber web I (21) is formed between the drafting machine (1), the conveying net curtain I (6), the conveying net curtain II (7), the conveying net curtain III (8) and the conveying net curtain IV (9); A continuous passage for conveying the unwinding product (22) is formed between the unwinding machine (2), the cloth guide roller I (11), the cloth guide roller II (12), the cloth guide roller III (13), the cloth guide roller IV (14), the drafting roller group (15), the conveying net curtain III (8) and the conveying net curtain IV (9); A continuous passage for conveying the fiber web II (23) is formed between the carding machine (3), the conveying mesh curtain V (10), the cloth guide roller V (16), the cloth guide roller VI (17) and the conveying mesh curtain IV (9).

2. The wrinkle-proof composite cotton web preparation system according to claim 1, characterized in that: The unwinding machine (2) and the carding machine (3) are both arranged at high positions.

3. The wrinkle-proof composite cotton web preparation system according to claim 1, characterized in that: The projection point of the drafting roller group (15) on the surface where the conveying mesh curtain III (8) is located is the midpoint of the conveying mesh curtain III (8).

4. The wrinkle-proof composite cotton web preparation system according to claim 1 or 3, characterized in that: The drafting roller group (15) comprises a drafting roller I (151), a drafting roller II (152) and a drafting roller III (153), wherein the drafting roller II (152) is arranged at the rear side of the working position of the drafting roller I (151), the drafting roller III (153) is arranged at the rear side of the working position of the drafting roller II (152), the cloth guide roller VI (17) is arranged at the rear side of the working position of the drafting roller III (153), and the drafting roller II (152) is connected to a power motor (18); A continuous passage for conveying the unwinding product (22) is formed between the lower side of the stretching roller I (151), the upper side of the stretching roller II (152) and the lower side of the stretching roller III (153).

5. The wrinkle-proof composite cotton web preparation system according to claim 4, characterized in that: The outer diameter of the stretching roller II (152) is greater than the outer diameter of the stretching roller I (151) and greater than the outer diameter of the stretching roller III (153); the distance between the stretching roller II (152) and the conveying net curtain III (8) is greater than the distance between the stretching roller I (151) and the conveying net curtain III (8) and greater than the distance between the stretching roller III (153) and the conveying net curtain III (8).

6. The wrinkle-proof composite cotton web preparation system according to claim 5, characterized in that: The surfaces of the drafting roller I (151), the drafting roller II (152) and the drafting roller III (153) are all provided with a rubber layer (19).

7. The wrinkle-proof composite cotton web preparation system according to claim 5, characterized in that: The surfaces of the drafting roller I (151), the drafting roller II (152) and the drafting roller III (153) are also provided with grooves (20) for arc expansion.

8. The wrinkle-proof composite cotton web preparation system according to claim 1, characterized in that: At the joining point between the fiber web I (21) and the unrolled product (22), the angle between the fiber web I (21) and the unrolled product (22) is θ1, where 0<θ1<90°.

9. The wrinkle-proof composite cotton web preparation system according to claim 1, characterized in that: At the joining point between the fiber web II (23) and the unwinding product (22) - fiber web I (21), the angle between the fiber web II (23) and the unwinding product (22) - fiber web I (21) is θ2, 0<θ2<90°.

10. The wrinkle-proof composite cotton web preparation system according to claim 1, characterized in that: The cloth guide roller VI (17) is arranged above the conveying mesh curtain III (8), and the cloth guide roller VI (17) is arranged near the discharge port end of the conveying mesh curtain III (8).

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