Fabric double-sided napping device
By independently controlling the speed and direction of the upper and lower napping rollers, combined with an antistatic coating and a dust extraction mechanism, the problem of identical napping effects on both sides of existing napping devices has been solved, achieving differentiation in napping effects on the front and back of the fabric, thus improving product quality and production safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-03-17
AI Technical Summary
Existing napping devices produce the same effect in both napping processes, making it difficult to adapt to situations where the napping requirements differ between the front and back of the fabric.
Design a double-sided napping device for fabrics. By independently controlling the rotation speed and direction of the upper and lower napping rollers, different napping rates can be achieved using a servo motor, harmonic speed increaser, and planetary gear reducer. Combined with an antistatic coating and a dust collection mechanism, the napping effect and safety are ensured.
This achieves differentiation in the napping effect on both sides of the fabric, improves product quality and adaptability, and reduces static friction and pollution in the production environment.
Smart Images

Figure CN224001647U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of textile equipment technology, and in particular to a double-sided napping device for fabrics. Background Technology
[0002] In existing technologies, the napping process for fabrics typically involves napping one or both sides. Current napping devices perform the same napping process on both sides, resulting in essentially identical napping effects on both sides. This makes the fabrics rather ordinary and unsuitable for applications where different napping requirements exist on the front and back. Therefore, there is an urgent need to design a device that can nap both sides of a fabric and produce different effects. Utility Model Content
[0003] To address the aforementioned technical deficiencies, this invention provides a double-sided fabric napping device that can nap both sides of the fabric, with different napping effects on each side to meet different needs.
[0004] This utility model discloses a double-sided napping fabric device, including a frame, a fabric output roller at one end of the frame, a fabric take-up roller at the other end of the frame, and pressure roller groups at both ends of the frame, the pressure roller groups being at the same horizontal height. A set of napping rollers is arranged on the frame between the pressure roller groups, the napping rollers being at the same horizontal height as the pressure roller groups. Power mechanisms are respectively arranged on the frame at one end of the two napping rollers, the power mechanisms being driven to drive the two napping rollers respectively. A drive mechanism is arranged on the frame at the end of the fabric take-up roller, the drive mechanism being driven to drive the fabric take-up roller.
[0005] The napping roller is divided into an upper napping roller and a lower napping roller.
[0006] The power mechanism connected to the upper brushing roller includes a servo motor and a harmonic speed increaser. An upper driven wheel is provided at the end of the upper brushing roller. The upper driven wheel is connected to the output end of the harmonic speed increaser. A driven gear is provided on the input shaft of the harmonic speed increaser. A driving gear is provided on the output shaft of the servo motor. The driving gear and the driven gear mesh with each other.
[0007] The power mechanism connected to the pull-down roller includes a servo motor and a planetary gear reducer. A driven wheel is provided at the end of the pull-down roller. The driven wheel is connected to the output end of the planetary gear reducer. A driven gear is provided on the input shaft of the planetary gear reducer. A driving gear is provided on the output shaft of the servo motor. The driving gear and the driven gear mesh with each other.
[0008] The upper and lower brushing rollers have the same structure, which includes a roller body and brushing needles arranged on the circumferential surface of the roller body. The brushing needles are arranged in a hexagonal honeycomb pattern on the surface of the roller body. The brushing needles on the upper brushing roller protrude 3-5mm from the surface of the roller body, and the brushing needles on the lower brushing roller protrude 2-3mm from the surface of the roller body.
[0009] An antistatic coating is applied to the surface of both the upper and lower brushing rollers.
[0010] A dust collection mechanism is installed on the frame near the fabric output roller. The dust collection mechanism is located between the pressure roller group and the napping roller. The dust collection mechanism includes two dust collection hoods, which are fixed on the frame. The dust collection hoods are connected to a vacuum cleaner through a dust collection pipe. The dust collection hoods are respectively located on the upper and lower sides of the fabric entering between the napping rollers, and the openings of the dust collection hoods face the area where the fabric enters between the napping rollers.
[0011] The present invention provides a double-sided napping device for fabrics, which can adjust the rotation speed of the upper napping roller and the lower napping roller according to actual needs. The two rollers can be independently controlled to achieve different napping rates, so different napping effects can be achieved on the front and back of the fabric. The device is also adjustable, which improves the effect and quality of the napped fabric. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model;
[0013] Figure 2 This is a schematic diagram of the structure of the upper pull roller of this utility model. Detailed Implementation
[0014] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.
[0015] Example 1:
[0016] like Figure 1 , Figure 2 As shown, this utility model discloses a double-sided napping fabric device, including a frame 1, a fabric output roller 2 at one end of the frame 1, a fabric take-up roller 3 at the other end of the frame 1, and pressure roller groups 4 at both ends of the frame 1, the pressure roller groups 4 being at the same horizontal height. A set of napping rollers is arranged on the frame 1 between the pressure roller groups 4, the napping rollers being at the same horizontal height as the pressure roller groups 4. A power mechanism is respectively arranged on the frame 1 at one end of the two napping rollers, the power mechanism being driven to drive the two napping rollers respectively; a drive mechanism is arranged on the frame 1 at the end of the fabric take-up roller 3, the drive mechanism being driven to drive the fabric take-up roller 3.
[0017] The fabric is output from the fabric output roller 2, then passes through the pressure roller group 4, then between the napping rollers, and finally enters the fabric take-up roller 3 after passing through the pressure roller group 4 again. During this napping process, the drive mechanism of the fabric take-up roller 3 provides power, driving the fabric continuously. The drive mechanism mainly consists of an electric motor and a gearbox; its specific structure is a known existing structure and will not be described in detail. The two pressure roller groups 4 have a certain pressing and tensioning effect on the fabric, keeping the fabric in a horizontal conveying state between the pressure roller groups 4. The pressure roller group 4 and the napping roller being at the same horizontal height means that the gap between the two pressure rollers of the pressure roller group 4, i.e., the position where the fabric passes between the pressure roller groups 4, is at the same horizontal height as the gap between the napping rollers, i.e., the position where the fabric passes between the napping rollers. This ensures that the contact between the fabric and the napping rollers remains horizontal, effectively guaranteeing the stability and effect of the napping process.
[0018] The two napping rollers are respectively connected to the power mechanism set on the frame 1. By adjusting the different speeds of the corresponding power mechanism, the speed of the napping rollers can be adjusted, so that the two napping rollers run at different speeds. At the same time, the rotation direction of the napping rollers can also be adjusted, so that the napping effect on the front and back of the fabric can be different.
[0019] The brushing roller is divided into an upper brushing roller 5 and a lower brushing roller 6.
[0020] The power mechanism connected to the upper brushing roller 5 includes a servo motor 12 and a harmonic speed increaser 8. An upper driven wheel 7 is provided at the end of the upper brushing roller 5. The upper driven wheel 7 is connected to the output end of the harmonic speed increaser 8. A driven gear 10 is provided on the input shaft of the harmonic speed increaser 8. A driving gear 11 is provided on the output shaft of the servo motor 12. The driving gear 11 meshes with the driven gear 10.
[0021] The power mechanism connected to the pull-down roller 6 includes a servo motor 12 and a planetary gear reducer 9. A driven wheel 7 is provided at the end of the pull-down roller 6. The driven wheel 7 is connected to the output end of the planetary gear reducer 9. A driven gear 10 is provided on the input shaft of the planetary gear reducer 9. A driving gear 11 is provided on the output shaft of the servo motor 12. The driving gear 11 meshes with the driven gear 10.
[0022] The upper napping roller 5 has a driven wheel 7 at its end, which is connected to the servo motor 12 via a harmonic speed increaser 8. The servo motor 12 drives the upper napping roller 5 to rotate through the harmonic speed increaser 8, effectively increasing the rotation speed of the upper napping roller 5 and making the speed adjustment of the upper napping roller 5 more stable. The driven wheel 7 at the end of the lower napping roller 6 is connected to the servo motor 12 via a planetary gear reducer 9. The servo motor 12 reduces the speed of the lower napping roller 6 through the planetary gear reducer 9, and can also adjust the rotation direction of the lower napping roller 6. Under normal circumstances, the rotation speed of the upper napping roller 5 is often greater than that of the lower napping roller 6, so the napping effect on the front of the fabric is finer, while the napping effect on the reverse side of the fabric is softer.
[0023] This design allows for the selection of the appropriate servo motor 12's speed and rotation direction based on actual needs, enabling the fabric to be processed with different napping effects on both sides to meet different fabric requirements and improve product quality and added value.
[0024] The upper brushing roller 5 and the lower brushing roller 6 have the same structure, which includes a roller body 51 and brushing needles 52 disposed on the circumferential surface of the roller body 51. The brushing needles 52 are arranged in a hexagonal honeycomb array on the surface of the roller body 51. The brushing needles 52 on the upper brushing roller 5 protrude 4mm from the surface of the roller body 51, and the brushing needles 52 on the lower brushing roller 6 protrude 3mm from the surface of the roller body 51.
[0025] The napping needles 52 on the upper napping roller 5 and the lower napping roller 6 are arranged in a hexagonal honeycomb pattern. This ensures that during the napping process, the contact and stress points between the fabric and the corresponding napping roller are not on the same axis, resulting in less impact on the fabric and less deformation. Furthermore, the napping needles 52 on the upper napping roller 5 are slightly longer than those on the lower napping roller 6, making the napping effect on the front of the fabric more pronounced.
[0026] An antistatic coating is applied to the surface of the roller body 51 of both the upper napping roller 5 and the lower napping roller 6. This antistatic coating on the roller body 51 effectively prevents static electricity from being generated due to friction between the roller body 51 and the fabric during the napping process, thus improving the safety of the napping process.
[0027] A dust collection mechanism is provided on the frame 1 near the end of the fabric output roller 2. The dust collection mechanism is located between the pressure roller group 4 and the napping roller. The dust collection mechanism includes two dust collection hoods, which are fixed on the frame 1 respectively. The dust collection hoods are connected to a vacuum cleaner through a dust collection pipe. The dust collection hoods are respectively set on the upper and lower sides of the fabric entering between the napping rollers, and the openings of the dust collection hoods face the area where the fabric enters between the napping rollers.
[0028] The dust collection mechanism has two dust collection hoods facing the part of the fabric that enters the napping roller. These hoods are located on the top and bottom sides of the fabric, respectively. They can remove broken fibers generated during the napping process, ensuring the reliability of the napping effect and making the production environment cleaner.
[0029] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0030] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the interaction relationship between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0031] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simplification, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.
Claims
1. A double-sided napping device for a fabric, comprising a frame, characterized in that: The end of the frame is provided with a fabric output roller, the other end of the frame is provided with a fabric winding roller, and a compression roller group is arranged at both ends of the frame and is at the same horizontal height. A group of raising rollers is arranged on the frame between the compression roller groups and is at the same horizontal height as the compression roller groups. A power mechanism is arranged on the frame at one end of the two raising rollers, and the power mechanism is in transmission connection with the two raising rollers respectively. A driving mechanism is arranged on the frame at the end of the fabric winding roller, and the driving mechanism is in transmission connection with the fabric winding roller.
2. A fabric double napping device according to claim 1, characterized in that: The raising rollers are divided into upper raising rollers and lower raising rollers, The power mechanism in transmission connection with the upper raising roller comprises a servo motor and a harmonic speed increaser, an upper driven wheel is arranged at the end of the upper raising roller, the upper driven wheel is in transmission connection with the output end of the harmonic speed increaser, a driven gear is arranged on the input shaft of the harmonic speed increaser, and a driving gear is arranged on the output shaft of the servo motor and is in meshing with the driven gear. The power mechanism in transmission connection with the lower raising roller comprises a servo motor and a planetary gear reducer, a lower driven wheel is arranged at the end of the lower raising roller, the lower driven wheel is in transmission connection with the output end of the planetary gear reducer, a driven gear is arranged on the input shaft of the planetary gear reducer, and a driving gear is arranged on the output shaft of the servo motor and is in meshing with the driven gear.
3. A fabric double napping device according to claim 2, characterized in that: The upper raising roller and the lower raising roller have the same structure, which comprises a roller body and raising needles arranged on the circumferential surface of the roller body, the raising needles are arranged in a hexagonal honeycomb array on the surface of the roller body, the height of the raising needles on the upper raising roller protruding from the surface of the roller body is 3-5 mm, and the height of the raising needles on the lower raising roller protruding from the surface of the roller body is 2-3 mm.
4. A fabric double napping device according to claim 3, characterized in that: An antistatic coating is coated on the surface of the roller body of the upper raising roller and the lower raising roller.
5. A fabric double napping device according to claim 1, characterized in that: A dust collection mechanism is arranged on the frame close to the end of the fabric output roller, the dust collection mechanism is located between the compression roller group and the raising rollers, the dust collection mechanism comprises two dust collection covers, the dust collection covers are fixed on the frame respectively, the dust collection covers are connected with a dust collection machine through a dust collection pipe, the dust collection covers are arranged on the upper and lower sides of the fabric entering between the raising rollers respectively, and the openings of the dust collection covers face the area where the fabric enters between the raising rollers.