Edge processing structure for non-woven fabric cutting
By combining a hollow heat-conducting roller driven by meshing gears with a temperature-controlled electric heater and a fan cooling system, problems such as fraying and unraveling during the cutting process of nonwoven fabrics are solved, achieving efficient and reliable edge treatment and improving the durability and production efficiency of nonwoven fabrics.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WENZHOU HONGXIN NONWOVEN TECH CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-04-21
AI Technical Summary
Nonwoven fabrics are prone to problems such as rough edges and fraying during the cutting process. Existing treatment methods such as heat sealing, sewing and gluing have problems such as improper temperature control, low efficiency and poor durability, which make it difficult to meet the needs of high-quality production.
The process employs meshing gears to drive hollow heat-conducting rollers, along with temperature-controlled electric heaters and servo motors, to achieve uniform heating and hot-pressing of the edges of nonwoven fabrics. The fabrics are then cooled and shaped in all directions using fans and ventilation pipes, forming a continuous and efficient production process.
It effectively solves the problems of burrs and fraying, improves edge strength and appearance quality, balances softness and functionality, meets the needs of large-scale production, and improves production efficiency.
Smart Images

Figure CN224148375U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fabric edge treatment structure technology, specifically to the edge treatment structure for nonwoven fabric cutting. Background Technology
[0002] In the modern textile industry and related fields, nonwoven fabrics are widely used in various industries such as medical and health care, filtration materials, packaging materials, and clothing linings due to their advantages of simple production processes, low cost, and diverse performance. However, during the cutting process, due to their special fiber structure, the edges of nonwoven fabrics are prone to problems such as fraying, unraveling, and curling, which not only affect the appearance quality of the product but also reduce its durability and functionality. For example, in medical and health products such as medical masks and surgical gowns, improper edge treatment may lead to fiber shedding, causing allergies or contamination risks; in the field of filtration materials, edge unraveling weakens the filtration effect and shortens the service life. Therefore, efficient and reliable edge treatment technology has become a key link in ensuring the quality of nonwoven fabric products.
[0003] Currently, common edge treatment methods for nonwoven fabrics include heat sealing, sewing, and adhesive bonding. Heat sealing uses high temperatures to melt and bond the fibers at the edges of the nonwoven fabric. However, improper temperature and pressure control can easily cause the edges to harden, become brittle, or even burn, affecting the softness and comfort of the nonwoven fabric. While sewing can enhance edge strength, it leaves pinholes in the nonwoven fabric, compromising its integrity and reducing its waterproof and dustproof properties. Furthermore, sewing efficiency is low, making it difficult to meet the needs of large-scale production. Adhesive bonding suffers from uneven glue distribution, residual harmful substances, and poor aging resistance, and is prone to edge delamination and detachment after prolonged use.
[0004] With the continuous expansion of nonwoven fabric applications and the increasing demands for product quality, developing an edge treatment structure for nonwoven fabric cutting that can effectively solve problems such as frayed edges and fraying has become an urgent task to promote technological progress in the nonwoven fabric industry and meet the diversified needs of the market. Utility Model Content
[0005] The purpose of this invention is to provide an edge treatment structure for nonwoven fabric cutting to solve the defects mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] The edge treatment structure for nonwoven fabric cutting includes two symmetrical support plates on the left and right, and two symmetrical rotating shafts on the upper and lower sides rotatably connected between the two support plates. Hollow heat-conducting rollers are fixedly installed on the shafts at both ends of the rotating shafts. Gears are fixedly installed at the same end of the two rotating shafts, and the upper and lower gears mesh with each other. The rotating shafts are driven to rotate by a servo motor. A temperature-controlled electric heater is rotatably connected to the end rod of the rotating shaft. The temperature-controlled electric heater is inserted into the corresponding hollow heat-conducting roller along the end of the rotating shaft. An air inlet hood is provided on one side of the support plate. A fan is fixedly installed in the air inlet hood. A pipe for cooling the edge of the nonwoven fabric after heat pressing is provided at the end of the air inlet hood.
[0008] Preferably, a fixed base is fixedly installed at the bottom of the support plate, and the fixed base is fixedly installed on the external frame.
[0009] Preferably, the end shaft of the rotating shaft is a hollow structure, and a sealed bearing is provided inside the end shaft of the rotating shaft;
[0010] This feature allows the temperature-controlled electric heater to be inserted properly, while the sealed bearing minimizes heat loss.
[0011] Preferably, the temperature-controlled electric heater is inserted along the center of the sealed bearing, and a fixing plate is fixedly installed at the end of the temperature-controlled electric heater. The fixing plate is detachably installed on the side of the support plate by a plurality of fastening screws.
[0012] Preferably, pulleys are fixedly installed on the end shaft of one of the rotating shafts and on the output shaft of the servo motor, and the two pulleys are connected by belt drive.
[0013] Preferably, a ventilation pipe is fixedly installed at the air outlet end of the air inlet hood, and two symmetrical conveying pipes are fixedly installed at the bottom of the ventilation pipe. Multiple downward-facing pipes and multiple upward-facing pipes are fixedly installed on the conveying pipes.
[0014] Preferably, the end opening of the downward-facing pipe is positioned downwards, and the end opening of the upward-facing pipe is positioned upwards, with the air outlets at the ends of the downward-facing pipe and the upward-facing pipe used for cooling operations.
[0015] Preferably, a fabric passage gap is provided between the downward-facing tube and the upward-facing tube, and the edge of the nonwoven fabric passes through the hollow heat-conducting roller and the fabric passage gap.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] 1. This utility model uses meshing gears to drive the hollow heat-conducting roller to rotate, and in conjunction with the temperature-controlled electric heater inserted into the roller, it achieves uniform heating and hot-pressing of the edge of the nonwoven fabric, effectively solving the problems of burrs and unraveling, and achieving the effect of improving edge strength and appearance quality.
[0018] 2. This utility model utilizes a sealed bearing at the end of the rotating shaft and a fixedly installed temperature-controlled electric heater to reduce heat loss while ensuring the normal operation of the heater and precisely control the heating temperature. This enables precise control of the edge treatment of nonwoven fabrics of different materials, achieving the effect of avoiding edge brittleness and hardening while maintaining both softness and functionality.
[0019] 3. This utility model utilizes the fan inside the air inlet hood and the set ventilation pipe, conveying pipe, downward pipe and upward pipe to cool and shape the edges of the nonwoven fabric in all directions after hot pressing, realizing a continuous and efficient production process, thereby improving production efficiency and meeting the needs of large-scale production. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 This is one of the partial structural schematic diagrams of this utility model;
[0022] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;
[0023] Figure 4 This is the second partial structural schematic diagram of the present utility model;
[0024] The meanings of the labels in the diagram are as follows:
[0025] 1. Support plate; 10. Fixed base; 11. Rotating shaft; 12. Hollow heat-conducting roller; 13. Gear; 14. Sealed bearing; 15. Servo motor; 16. Pulley; 17. Belt;
[0026] 2. Temperature-controlled electric heater; 20. Fixed plate;
[0027] 3. Air inlet hood; 30. Fan; 31. Ventilation duct; 32. Conveying duct; 33. Downward duct; 34. Upward duct; 35. Fabric protrusion gap. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0029] Please see Figures 1-4 This utility model provides a technical solution: an edge treatment structure for nonwoven fabric cutting, including two symmetrical support plates 1 on the left and right, a fixed base 10 fixedly installed at the bottom of the support plate 1, and the fixed base 10 fixedly installed on the external frame, so that the entire edge treatment structure can be stably installed on the external frame, providing stable support for the operation of subsequent components and ensuring the stability and reliability of the equipment during operation.
[0030] In this embodiment, two symmetrical rotating shafts 11 are rotatably connected between two support plates 1. Hollow heat-conducting rollers 12 are fixedly installed on the shafts at both ends of the rotating shafts 11. Gears 13 are fixedly installed on the same end of the two rotating shafts 11. The upper and lower gears 13 mesh with each other. The rotating shafts 11 are driven to rotate by a servo motor 15. A temperature-controlled electric heater 2 is rotatably connected to the end rod of the rotating shaft 11. The temperature-controlled electric heater 2 is inserted into the corresponding hollow heat-conducting roller 12 along the end of the rotating shaft 11, so that the upper and lower hollow heat-conducting rollers 12 can rotate synchronously in opposite directions, realizing continuous clamping and heat-pressing of the edge of the nonwoven fabric, effectively improving the processing efficiency. In addition, pulleys 16 are fixedly installed on the end shaft of one of the rotating shafts 11 and on the output shaft of the servo motor 15. The two pulleys 16 are connected by a belt 17. The servo motor 15 is fixedly installed on the external frame to ensure the stability and controllability of the power transmission.
[0031] like Figure 2 and Figure 3 As shown, the end shaft of the rotating shaft 11 is a hollow structure, and a sealed bearing 14 is provided inside the end shaft of the rotating shaft 11. The temperature-controlled electric heater 2 is inserted along the center of the sealed bearing 14, so that the temperature-controlled electric heater 2 can be installed smoothly and work normally. At the same time, the presence of the sealed bearing 14 also prevents the temperature-controlled electric heater 2 from causing friction or obstruction to the rotation of the rotating shaft 11. In addition, the sealed bearing 14 minimizes heat loss, ensuring that the hollow heat-conducting roller 12 can maintain a stable and precise heating temperature, realize uniform heating of the edge of the nonwoven fabric, and improve the edge treatment quality.
[0032] like Figure 2 and Figure 3As shown, a fixing plate 20 is fixedly installed at the end of the temperature-controlled electric heater 2. The fixing plate 20 is detachably installed on the side of the support plate 1 by multiple fastening screws, which facilitates the installation, maintenance and replacement of the temperature-controlled electric heater 2 and improves the maintainability and service life of the equipment.
[0033] like Figure 1 and Figure 4 As shown, an air inlet hood 3 is provided on one side of the support plate 1. A fan 30 is fixedly installed inside the air inlet hood 3. A pipe for cooling the edge of the nonwoven fabric after heat pressing is provided at the end of the air inlet hood 3. A ventilation pipe 31 is fixedly installed at the air outlet end of the air inlet hood 3. Two symmetrical conveying pipes 32 are fixedly installed at the bottom of the ventilation pipe 31. Multiple downward pipes 33 and multiple upward pipes 34 are fixedly installed on the conveying pipes 32. The end openings of the downward pipes 33 face downwards, and the end openings of the upward pipes 34 face upwards. The air outlets of the downward pipes 33 and the upward pipes 34 are used for cooling operations, forming a complete cooling and ventilation system. The air generated by the fan 30 is transported through the pipes and cooled in both directions on the edge of the nonwoven fabric after heat pressing through the downward pipes 33 and the upward pipes 34, ensuring that the edge of the nonwoven fabric cools and sets quickly, and preventing deformation, curling and other problems caused by excessive temperature.
[0034] It is worth noting that a fabric passage gap 35 is provided between the downward tube 33 and the upward tube 34. The edge of the nonwoven fabric passes through the hollow heat-conducting roller 12 and the fabric passage gap 35, so that the edge of the nonwoven fabric can pass through smoothly and receive all-round hot pressing and cooling treatment, ensuring the effectiveness and uniformity of the cooling operation, and further improving the quality and effect of the nonwoven fabric edge treatment.
[0035] Finally, it should be noted that the servo motor 15, temperature-controlled electric heater 2, and fan 30 involved in this utility model are all general standard parts or parts known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. In the idle space of this device, all the above-mentioned electrical components, which refer to power elements, electrical components, and the matching controller and power supply, are connected by wires. The specific connection method should refer to the working principle of this utility model. The electrical connections between each electrical component are completed in the order of operation. The detailed connection methods are all technologies known in the art.
[0036] When using the edge treatment structure for nonwoven fabric cutting of this utility model, the power supply of the temperature-controlled electric heater 2 is turned on and the temperature is set. The heat generated by the temperature-controlled electric heater 2 is transferred to the hollow heat-conducting roller 12 to heat it.
[0037] The cut edge of the nonwoven fabric is inserted between the upper and lower hollow heat-conducting rollers 12. Then, the nonwoven fabric is led out through the fabric exit gap 35 between the lower tube 33 and the upper tube 34. At this time, the servo motor 15 is started. The servo motor 15 drives one of the rotating shafts 11 to rotate through the pulley 16 and the belt 17. The upper and lower rotating shafts 11 rotate synchronously in opposite directions through the meshing gears 13, which drive the hollow heat-conducting rollers 12 to perform heat pressing on the edge of the nonwoven fabric. The heat of the rollers is used to melt and bond the edge fibers.
[0038] After the hot pressing process is completed, the fan 30 inside the air inlet hood 3 is turned on. The airflow passes through the ventilation pipe 31 and the conveying pipe 32, and blows out from the downward pipe 33 and the upward pipe 34 to cool the edges of the nonwoven fabric in both directions, allowing it to cool and set quickly. Throughout the process, the nonwoven fabric moves continuously under the drive of the hollow heat-conducting roller 12, completing continuous and efficient edge treatment. The treated nonwoven fabric can then be wound up or further processed by subsequent equipment.
[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A structure for treating the edge of a nonwoven cloth cutout, characterized by: The device includes two symmetrical support plates (1) on the left and right, and two symmetrical rotating shafts (11) on the upper and lower sides are rotatably connected between the two support plates (1). Hollow heat-conducting rollers (12) are fixedly installed on the shafts at both ends of the rotating shafts (11). Gears (13) are fixedly installed at the same end of the two rotating shafts (11). The upper and lower gears (13) mesh with each other. The rotating shafts (11) are driven to rotate by a servo motor (15). A temperature-controlled electric heater (2) is rotatably connected to the rod at the end of the rotating shaft (11). The temperature-controlled electric heater (2) is inserted into the corresponding hollow heat-conducting roller (12) along the end of the rotating shaft (11). An air inlet hood (3) is provided on one side of the support plate (1). A fan (30) is fixedly installed inside the air inlet hood (3). A pipe for cooling the edge of the nonwoven fabric after heat pressing is provided at the end of the air inlet hood (3).
2. The nonwoven cloth trimming edge treatment structure according to claim 1, wherein: The bottom of the support plate (1) is fixedly installed with a fixed base (10), and the fixed base (10) is fixedly installed on the external frame.
3. The nonwoven cut edge treatment structure of claim 1, wherein: The end shaft of the rotating shaft (11) is a hollow structure, and a sealed bearing (14) is provided in the end shaft of the rotating shaft (11).
4. The nonwoven cut edge treatment structure of claim 3, wherein: The temperature-controlled electric heater (2) is inserted along the center of the sealed bearing (14). A fixing plate (20) is fixedly installed at the end of the temperature-controlled electric heater (2). The fixing plate (20) is detachably installed on the side of the support plate (1) by a plurality of fastening screws.
5. The nonwoven cut edge treatment structure of claim 1, wherein: One of the rotating shafts (11) and the output shaft of the servo motor (15) are fixedly mounted with pulleys (16), and the two pulleys (16) are connected by a belt (17).
6. The nonwoven cut edge treatment structure of claim 1, wherein: The air inlet hood (3) is fixedly installed with a ventilation pipe (31) at the air outlet end. Two symmetrical conveying pipes (32) are fixedly installed at the bottom of the ventilation pipe (31). Multiple downward pipes (33) and multiple upward pipes (34) are fixedly installed on the conveying pipes (32).
7. The nonwoven cut edge treatment structure of claim 6, wherein: The end opening of the downward-facing pipe (33) is set downwards, and the end opening of the upward-facing pipe (34) is set upwards. The air outlets at the ends of the downward-facing pipe (33) and the upward-facing pipe (34) are used for cooling operations.
8. The nonwoven cut edge treatment structure of claim 6, wherein: A fabric passage gap (35) is provided between the downward tube (33) and the upward tube (34), and the edge of the nonwoven fabric passes through the hollow heat-conducting roller (12) and the fabric passage gap (35).