Island super fine leather raising device
The design of the enclosed enclosure and dust removal system solves the problem of dust pollution during the brushing process, achieving efficient dust removal and improving the processing quality and safety of synthetic leather.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIAXING NUOXUN ELECTROMECHANICAL TECH CO LTD
- Filing Date
- 2025-07-01
- Publication Date
- 2026-07-24
AI Technical Summary
Existing brushing equipment generates a large amount of dust during the brushing process, which leads to environmental pollution, reduces the peel strength of synthetic leather, and poses safety hazards.
It adopts a closed box design, combined with the reverse rotation of the pressing roller and the abrasive roller, and is equipped with a dust removal system. It uses air nozzles and suction pipes to blow up and suck away the dust, and uses a negative pressure fan to form an airflow to remove the dust.
Effectively isolates dust, reduces dust entering the production workshop, improves the processing quality and safety of synthetic leather, and avoids environmental pollution.
Smart Images

Figure CN224548747U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of napping devices, specifically relating to a napping device for island microfiber leather. Background Technology
[0002] To improve the surface finish or smoothness of semi-finished synthetic leather, abrasive processing is commonly used. The main purposes of abrasive processing are to even out thickness, create nap, and remove surface imperfections. The tools used to abrade the base fabric surface are abrasive belts or abrasive rollers. The base fabric and abrasive belt travel in the same direction, but the abrasive belt's speed is much greater than the base fabric's forward speed. As the abrasive grains exit the cutting action, they pull up the "broken ends" of the cut fibers, forming a nap. Conventional abrasive devices consist of rubber rollers and a main abrasive roller, resulting in a large and complex structure. The abrasive process generates a significant amount of dust. Due to electrostatic adsorption and other factors, a large amount of dust adheres to the napped base fabric surface. This dust reduces the friction for dyeing, decreases the peel strength of the synthetic leather, pollutes the working environment, causes respiratory illnesses, and can even lead to explosions or fires. Utility Model Content
[0003] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a combined napping device for island microfiber leather, including a closed box, with an inlet for island microfiber leather to pass through on one side and an outlet for island microfiber leather to pass through on the other side. Several pressing rollers are installed sequentially inside the box, with both ends of the pressing rollers rotatably mounted inside the box. A napping roller is provided between adjacent pressing rollers. The napping roller is driven to rotate by a first motor. The circumferential surface of the napping roller is evenly covered with abrasive grains. Movable mounting plates are rotatably connected to both ends of the pressing rollers. The movable mounting plates are respectively mounted on vertical slide rails and are driven by cylinders to move on the vertical slide rails. Pressing mechanisms are provided at the inlet and outlet, and the pressing mechanism includes an upper pressing roller and a lower pressing roller. The upper pressing roller is located above the lower pressing roller, and the lower pressing roller is driven to rotate by a second motor.
[0004] As a preferred embodiment of the above technical solution, the rotation direction of the abrasive roller is opposite to that of the pressure roller.
[0005] As a preferred embodiment of the above technical solution, a dust collection box is provided on one side of the box body, a fabric inlet is provided on one side of the dust collection box, and a fabric outlet is provided on the other side. The fabric inlet is located between the fabric outlet and the fabric outlet. The dust collection box is provided with several air blowing nozzles and several air suction pipes. The air blowing nozzles are connected to the compressor through the air inlet pipe, and the air suction pipes are connected to the negative pressure fan through the air outlet pipe.
[0006] As a preferred embodiment of the above technical solution, the air nozzle is divided into an upper air nozzle and a lower air nozzle, and the air suction pipe includes an upper air suction pipe and a lower air suction pipe. The upper air nozzle and the upper air suction pipe are respectively located above the island microfiber leather in the dust removal box. The upper air nozzle is inclined downward and is opposite to the conveying direction of the island microfiber leather in the dust removal box. The lower air nozzle and the lower air suction pipe are respectively located below the island microfiber leather in the dust removal box. The lower air nozzle is inclined upward and is opposite to the conveying direction of the fabric in the dust removal box.
[0007] As a preferred embodiment of the above technical solution, a filter bag is installed in the air outlet pipe.
[0008] As a preferred embodiment of the above technical solution, the tilt angle of the upper and lower air nozzles is 45°.
[0009] As a preferred embodiment of the above technical solution, a transparent observation window is provided on one side of the enclosure.
[0010] The beneficial effects of this invention are as follows: The integrated napping device for microfiber leather of this invention isolates dust through a closed box, reducing the amount of dust entering the production workshop. The pressure roller can move up and down, creating tension on the base fabric to ensure it adheres tightly to the napping roller, allowing for adjustment of the napping effect. Air is blown from nozzles in the dust collection box to lift the dust adhering to the base fabric, which is then sucked away by a suction pipe, preventing dust from sticking to the base fabric and affecting subsequent processing quality. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation
[0012] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0013] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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 utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0014] In the description of this utility model, it should be noted that, unless otherwise explicitly 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 or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0015] like Figure 1 As shown, a combined napping device for microfiber leather includes a closed box 1. One side of the box 1 has an inlet 2 for microfiber leather to pass through, and the other side has an outlet 3 for microfiber leather to pass through. Several pressure rollers 4 are installed sequentially inside the box 1. The two ends of the pressure rollers 4 are rotatably installed inside the box 1. A brushing roller 5 is provided between adjacent pressure rollers 4. The brushing roller 5 is driven to rotate by a first motor. The circumferential surface of the brushing roller 5 is evenly covered with abrasive grains. The two ends of the pressure rollers 4 are rotatably connected to movable mounting plates. The movable mounting plates are respectively installed on vertical slide rails and are driven by cylinders to move on the vertical slide rails. The inlet 2 and the outlet 3 are respectively provided with pressing mechanisms. The pressing mechanism includes an upper pressing roller 6 and a lower pressing roller 7. The upper pressing roller 6 is located above the lower pressing roller 7, and the lower pressing roller 7 is driven to rotate by a second motor.
[0016] Furthermore, the rotation direction of the abrasive roller 5 is opposite to that of the pressure roller 4.
[0017] Furthermore, a dust collection box 8 is provided on one side of the box body 1. A fabric inlet 9 is provided on one side of the dust collection box 8, and a fabric outlet 10 is provided on the other side. The fabric inlet 9 is located between the fabric outlet 3 and the fabric outlet 10. The dust collection box 8 is provided with several air blowing nozzles and several air suction pipes. The air blowing nozzles are connected to the compressor through the air inlet pipe, and the air suction pipes are connected to the negative pressure fan through the air outlet pipe.
[0018] Furthermore, the air nozzle is divided into an upper air nozzle 11 and a lower air nozzle 12, and the suction pipe includes an upper suction pipe 13 and a lower suction pipe 14. The upper air nozzle 11 and the upper suction pipe 13 are respectively located above the island microfiber leather in the dust collection box 8. The upper air nozzle 11 is inclined downwards and opposite to the conveying direction of the island microfiber leather in the dust collection box 8. The lower air nozzle 12 and the lower suction pipe 14 are respectively located below the island microfiber leather in the dust collection box 8. The lower air nozzle 12 is inclined upwards and opposite to the conveying direction of the fabric in the dust collection box 8. The inclination angle of the upper and lower air nozzles is 45°. The inclined upper air nozzle 11 and lower air nozzle 12 are conducive to blowing up the dust on the island microfiber leather. The upper suction pipe 13 and the lower suction pipe 14 respectively use the negative pressure generated by the negative pressure fan to suck away the blown dust. The amount of dust that the air nozzle can blow up and the amount of dust that the suction tube can suck up are relative. The air blown out by the air nozzle and the negative pressure brought by the suction tube create an airflow in the housing 1. The airflow carries the blown-up dust, thus removing the dust from the microfiber leather.
[0019] Furthermore, a filter bag is installed in the exhaust pipe. The filter bag filters dust, preventing dust from being directly emitted and causing pollution.
[0020] Furthermore, a transparent observation window is provided on one side of the enclosure 1. Through the transparent observation window, the working conditions inside the enclosure 1 can be observed in real time.
[0021] It is worth mentioning that the technical features of cylinders, motors, negative pressure fans, compressors, etc. involved in this utility model patent application should be regarded as prior art. The specific structure, working principle, and possible control methods and spatial arrangement of these technical features can be adopted using conventional choices in the field and should not be regarded as the inventive point of this utility model patent. This utility model patent will not be further elaborated in detail.
[0022] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make many modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning or limited experimentation on the basis of the prior art should be within the scope of protection defined by the claims.
Claims
1. A device for raising nap on island-type microfiber leather, characterized in that, The device includes a closed housing with an inlet for microfiber leather to pass through on one side and an outlet for the same material on the other side. Several pressure rollers are sequentially installed inside the housing, with each roller rotatably mounted at both ends. A brushing roller is positioned between adjacent pressure rollers and is driven by a first motor. The brushing roller has evenly distributed abrasive grains on its circumference. Movable mounting plates are rotatably connected to both ends of each pressure roller and are mounted on vertical slide rails. These plates are moved along the slide rails by a cylinder. A pressing mechanism is provided at both the inlet and outlet, comprising an upper pressure roller and a lower pressure roller. The upper roller is positioned above the lower roller, which is driven by a second motor. The rotation direction of the brushing roller is the same as that of the pressure rollers. The rotation direction is opposite. A dust collection box is provided on one side of the box body. A fabric inlet is provided on one side of the dust collection box, and a fabric outlet is provided on the other side. The fabric inlet is located between the fabric outlet and the fabric outlet. The dust collection box is provided with several air blowing nozzles and several air suction pipes. The air blowing nozzles are connected to the compressor through the air inlet pipe, and the air suction pipes are connected to the negative pressure fan through the air outlet pipe. The air blowing nozzles are divided into upper air blowing nozzles and lower air blowing nozzles. The air suction pipes include upper air suction pipes and lower air suction pipes. The upper air blowing nozzles and upper air suction pipes are respectively located above the island microfiber leather in the dust collection box. The upper air blowing nozzles are inclined downwards and opposite to the conveying direction of the island microfiber leather in the dust collection box. The lower air blowing nozzles and lower air suction pipes are respectively located below the island microfiber leather in the dust collection box. The lower air blowing nozzles are inclined upwards and opposite to the conveying direction of the fabric in the dust collection box.
2. The island-mounted microfiber leather napping device as described in claim 1, characterized in that, A filter bag is installed in the air outlet pipe.
3. The island-stabilized microfiber leather napping device as described in claim 1, characterized in that, The tilt angle of the upper and lower air nozzles is 45°.
4. The island-mounted microfiber leather napping device as described in claim 1, characterized in that, A transparent observation window is provided on one side of the enclosure.