Nonwoven fabric winding apparatus

Abstract

This utility model provides a nonwoven fabric winding device, including a support frame with a "U"-shaped structure. Two parallel counterweight rollers are rotatably mounted on the top of the support frame. Each counterweight roller has a first sprocket mounted at an end close to each other. The two first sprockets are connected by a first chain. A support shaft for supporting the nonwoven fabric winding drum is provided on the lower side of the counterweight rollers. One end of the support shaft is rotatably connected to the support frame. A drive component for driving the support shaft to rotate is installed at the lower end of the support frame. A reversing roller is provided on the upper side of the support shaft. One end of the reversing roller is rotatably connected to the support frame. This utility model has the following beneficial effects: it enables the counterweight rollers to rotate synchronously, reducing the impact of the counterweight rollers on the yield of nonwoven fabric.

Description

Technical Field

[0001] This utility model is a non-woven fabric winding device, belonging to the field of non-woven fabric production. Background Technology

[0002] In the nonwoven fabric winding process, counterweight rollers are key components for ensuring winding quality. Their core function is to ensure the flatness, tightness, and consistency of the nonwoven fabric roll by applying stable mechanical pressure and tension control. In the nonwoven fabric winding process, at least two counterweight rollers are typically installed at the top of the winding support. A geared motor drives the nonwoven fabric winding drum on the support shaft to rotate, pulling the nonwoven fabric through the counterweight rollers to achieve winding. However, in existing technologies, at least two counterweight rollers are independently configured, lacking a linkage mechanism. When the nonwoven fabric passes through the counterweight rollers, differences in roller diameter, surface roughness, or installation gaps cause the rotational linear speeds of the counterweight rollers to be asynchronous. This speed inconsistency creates a tension gradient in the nonwoven fabric as it passes through the path formed by the counterweight rollers due to differences in frictional resistance between different roller surfaces, leading to excessive stretching of the nonwoven fabric. Specifically, this manifests as reduced fabric basis weight in areas of higher tension, excessive longitudinal elongation, and even fiber breakage forming defects, affecting the yield of the nonwoven fabric. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a non-woven fabric winding device to solve the problems mentioned in the background technology. This utility model enables the counterweight roller to rotate synchronously, thereby reducing the impact of the counterweight roller on the yield of non-woven fabric.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a nonwoven fabric winding device includes a support frame, which has a "U"-shaped structure. Two parallel counterweight rollers are rotatably mounted on the top of the support frame. Each counterweight roller has a first sprocket mounted at an end close to the other. The two first sprockets are connected by a first chain. A support shaft for supporting the nonwoven fabric winding drum is provided on the lower side of the counterweight rollers. One end of the support shaft is rotatably connected to the support frame. A driving component for driving the support shaft to rotate is installed on the lower end of the support frame. A reversing roller is provided on the upper side of the support shaft. One end of the reversing roller is rotatably connected to the support frame.

[0005] Furthermore, a connecting shaft that is rotatably connected to the bracket is installed at one end of the support shaft near the bracket, and a second sprocket is installed at the other end of the connecting shaft away from the support shaft. A reduction motor is installed at the lower end of the bracket, and a third sprocket that cooperates with the second sprocket is installed on the output shaft of the reduction motor. The second sprocket is connected to the third sprocket through a second chain.

[0006] Furthermore, a bearing seat that is rotatably connected to the connecting shaft is sleeved on the connecting shaft, and a lower crossbeam that is fixed to the bearing seat by bolts is provided on the lower side of the bearing seat. Both ends of the lower crossbeam are fixed to the bracket.

[0007] Furthermore, an upper crossbeam is installed at the upper part of the bracket, and one end of the reversing roller is rotatably connected to the upper crossbeam via a bearing.

[0008] Furthermore, an inclined beam is installed on the upper part of one side of the bracket, and multiple equidistant rollers for supporting the nonwoven fabric are rotatably installed on one side of the inclined beam. The rollers are arranged in parallel with the counterweight rollers.

[0009] Furthermore, both ends of the bracket are connected and fixed with bases, and a rib is installed on the upper surface of the base away from the bracket. The rib is arranged at an angle, and the end of the rib away from the base is connected and fixed to the vertical part of the bracket.

[0010] Furthermore, the cross-section of the support shaft is rectangular, and a pointed end is installed at the end of the support shaft away from the bracket. The pointed end and the support shaft are integrally formed.

[0011] The beneficial effects of this utility model are:

[0012] Two counterweight rollers are connected to the first chain via a first sprocket. When one counterweight roller rotates, it drives the other counterweight roller to rotate synchronously via the first chain. The linear speed deviation is minimized, the longitudinal tension fluctuation of the nonwoven fabric is reduced, and the weight deviation is controlled within a small range, effectively avoiding fiber stretching and breakage caused by uneven tension. Attached Figure Description

[0013] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0014] Figure 1 This is a schematic diagram of the structure of a nonwoven fabric winding device according to the present invention;

[0015] Figure 2 This is another perspective view of the nonwoven fabric winding device of this utility model;

[0016] Figure 3 This is an assembly diagram of the counterweight roller, reduction motor, and support frame in a nonwoven fabric winding device according to this utility model.

[0017] Figure 4 This is a schematic diagram of the assembly of the first chain, the first sprocket, and the counterweight roller in a nonwoven fabric winding device according to the present invention.

[0018] In the diagram: 1-bracket, 2-first chain, 3-slanted beam, 4-idler roller, 5-second chain, 6-gear motor, 7-base, 8-rib, 9-bearing seat, 10-winding shaft, 11-reversing roller, 12-counterweight roller, 13-first sprocket, 14-upper crossbeam, 15-second sprocket, 16-connecting shaft, 17-lower crossbeam, 18-third sprocket. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] Please see Figures 1-3 This utility model provides a technical solution: a non-woven fabric winding device, including a support 1, the support 1 having a "U" shaped structure, both ends of the support 1 being connected and fixed with a base 7, and a reinforcing rod 8 being installed on the side of the upper surface of the base 7 away from the support 1, the reinforcing rod 8 being arranged in an inclined manner, so that the end of the reinforcing rod 8 away from the base 7 is connected and fixed to the vertical part of the support 1, thereby improving the mechanical strength of the connection between the support 1 and the base 7.

[0021] See Figures 1-4 Two parallel counterweight rollers 12 are rotatably mounted on the top of the support 1. Each counterweight roller 12 has a first sprocket 13 mounted at its closest end. The two first sprockets 13 are connected by a first chain 2, forming a rigid transmission connection between the two counterweight rollers 12 and the first chain 2, thus constructing a synchronously rotating mechanical linkage system. When one counterweight roller 12 rotates under the traction of the nonwoven fabric, the power is transmitted to the first chain 2 through the first sprocket 13, thereby driving the other counterweight roller 12 to rotate at the same angular velocity. This design utilizes the high transmission ratio accuracy of the chain drive to reduce the linear velocity deviation between the two counterweight rollers 12, significantly optimizing the deviation compared to the traditional independent setting scheme. The synchronous rotation characteristic ensures that the linear velocity of each contact point of the nonwoven fabric remains consistent as it passes through the path formed by the two counterweight rollers 12, reducing the longitudinal tension fluctuation amplitude and effectively avoiding localized excessive pulling caused by roller speed differences, thus significantly improving the winding quality. In addition, synchronous rotation can balance the frictional resistance of the two rollers on the nonwoven fabric, and the uniform distribution of the wrap angle of the S-shaped path further ensures the stability of the material tension, providing a reliable mechanical basis for high-quality nonwoven fabric winding.

[0022] See Figures 1-4The counterweight roller 12 has a support shaft 10 on its lower side for supporting the nonwoven fabric take-up drum. The support shaft 10 has a rectangular cross-section. A pointed end is installed on the end of the support shaft 10 away from the bracket 1. The pointed end and the support shaft 10 are integrally formed. One end of the support shaft 10 is rotatably connected to the bracket 1. A connecting shaft 16 is installed on the end of the support shaft 10 near the bracket 1 and is rotatably connected to the bracket 1. A bearing seat 9 is fitted on the connecting shaft 16 and is rotatably connected to the connecting shaft 16. A lower crossbeam 17 is provided on the lower side of the bearing seat 9 and is fixed to the bearing seat 9 by bolts. Both ends of the lower crossbeam 17 are fixed to the bracket 1. The connecting shaft 16 is located away from the bracket 1. A second sprocket 15 is installed at one end of the support shaft 10, and a reduction motor 6 is installed at the lower end of the bracket 1. A third sprocket 18, which cooperates with the second sprocket 15, is installed on the output shaft of the reduction motor 6. The second sprocket 15 is connected to the third sprocket 18 through a second chain 5. A reversing roller 11 is provided on the upper side of the support shaft 10. An upper crossbeam 14 is installed in the upper part of the bracket 1. One end of the reversing roller 11 is rotatably connected to the upper crossbeam 14 through a bearing. An inclined beam 3 is installed on the upper part of one side of the bracket 1. Multiple equidistant rollers 4 for supporting the nonwoven fabric are rotatably installed on one side of the inclined beam 3. The rollers 4 are arranged parallel to the counterweight roller 12. The reduction motor 6 drives the connecting shaft 16 through the second chain 5, thereby driving the support shaft 10 and the counterweight roller 12 to rotate. The rollers 4 on the inclined beam 3 are arranged parallel to the counterweight roller 12, forming a multi-level support plane, which pre-unfolds the wrinkles of the nonwoven fabric. With the synchronously rotating counterweight roller 12, the flatness of the material is improved before winding. The counterweight roller 12 and the reversing roller 11 form an S-shaped guide path for the nonwoven fabric. With the synchronous rotation characteristics, the wrap angle of the nonwoven fabric between the two rollers is evenly distributed, and the frictional resistance at each contact point tends to be consistent.

[0023] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A nonwoven fabric winding apparatus comprising a support (1), characterized in that: The bracket (1) has a "U" shaped structure. Two parallel counterweight rollers (12) are rotatably mounted on the top of the bracket (1). A first sprocket (13) is mounted on the end of each counterweight roller (12) that is close to each other. The two first sprockets (13) are connected by a first chain (2). A support shaft (10) for supporting the nonwoven fabric take-up drum is provided on the lower side of the counterweight roller (12). One end of the support shaft (10) is rotatably connected to the bracket (1). A drive component for driving the support shaft (10) to rotate is installed on the lower end of the bracket (1). A reversing roller (11) is provided on the upper side of the support shaft (10). One end of the reversing roller (11) is rotatably connected to the bracket (1).

2. The apparatus according to claim 1, wherein: The support shaft (10) is equipped with a connecting shaft (16) that is rotatably connected to the bracket (1) at one end near the bracket (1). A second sprocket (15) is installed at the other end of the connecting shaft (16) away from the support shaft (10). A reduction motor (6) is installed at the lower end of the bracket (1). A third sprocket (18) that cooperates with the second sprocket (15) is installed on the output shaft of the reduction motor (6). The second sprocket (15) is connected to the third sprocket (18) through a second chain (5).

3. A nonwoven fabric winding apparatus according to claim 2, characterized by: The connecting shaft (16) is fitted with a bearing seat (9) that is rotatably connected to the connecting shaft (16). The lower side of the bearing seat (9) is provided with a lower crossbeam (17) that is fixed to the bearing seat (9) by bolts. Both ends of the lower crossbeam (17) are fixed to the bracket (1).

4. The apparatus according to claim 1, wherein: An upper crossbeam (14) is installed in the upper part of the bracket (1), and one end of the reversing roller (11) is rotatably connected to the upper crossbeam (14) through a bearing.

5. The apparatus according to claim 1, wherein: An inclined beam (3) is installed on the upper part of one side of the bracket (1). Multiple equidistant rollers (4) for supporting nonwoven fabric are rotatably installed on one side of the inclined beam (3). The rollers (4) are arranged in parallel with the counterweight rollers (12).

6. The apparatus according to claim 1, wherein: Both ends of the bracket (1) are connected and fixed with bases (7). A rib (8) is installed on the side of the upper surface of the base (7) away from the bracket (1). The rib (8) is arranged in an inclined manner. The end of the rib (8) away from the base (7) is connected and fixed to the vertical part of the bracket (1).

7. The apparatus of claim 1 wherein: The cross-section of the support shaft (10) is rectangular, and a pointed end is installed at the end of the support shaft (1) away from the bracket (1). The pointed end and the support shaft (10) are integrally formed.

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