I. Principles and Components of the Meltblown Nonwoven Fabric Production Line

Meltblown nonwoven fabric is different from the traditional spunbonding method. It utilizes high-speed hot air currents to stretch the polymer jets that are ejected from the spinnerets in the mold assembly, transforming them into ultra-fine short fibers. These fibers are guided onto rollers for cooling and forming based on their own adhesive force.

The production process of this line is a continuous flow process. From the loading and unloading of polymer materials, to the melting and extrusion of the materials, through the measurement of the metering pump, using a specialized spinneret assembly to spray out, the high-speed hot air currents reasonably stretch and guide the polymer jets ejected from the spinnerets, after cooling, onto the rollers for forming, to the receiving and processing of the end materials, all are carried out seamlessly. Any problem at any stage may cause production interruption. It is necessary to promptly identify the problem and promptly solve and handle it.

II. Maintenance Tips for the Meltblown Nonwoven Fabric Production Line

The meltblown nonwoven fabric production line consists of numerous individual equipment, such as the polymer feeding machine, screw extruder, metering pump unit, spinneret module, heating system, air compressor and cooling system, receiving and winding device. These equipment operate independently and are jointly commanded by PLC and industrial control computers, forming a synchronous and tension control system. They use frequency converters to control extrusion and transmission, as well as winding. The temperature control system controls heating, and the frequency converter also controls fans and cooling. Currently, the spinneret module of domestic equipment cannot achieve high precision and needs to be imported from abroad. However, other components can be produced domestically, and the maintenance efficiency is relatively higher.

1. Mechanical issues are easy to detect and solve. For example, if a transmission roller bearing breaks, it will make abnormal sounds, and it is easy to find suitable parts for replacement. Or if the reducer of the screw is broken, it will obviously cause speed fluctuations and emit a loud noise.

2. However, electrical issues, if they occur, are relatively concealed. For example, if a certain contact of the PLC is broken, it will cause abnormal linkage. If the drive optocoupler of the frequency converter is not normal, it will cause severe current fluctuations in the three-phase motor and even cause phase loss and shutdown. If the parameters of the winding tension are not matched, it will cause uneven winding. Or if a certain circuit is leaking electricity, it will cause the entire production line to trip and fail to start.

3. The touch screen touch glass is prone to contact failure or aging due to excessive pressing or dust and oil entering the wiring head, causing poor contact or touch plate aging. This requires timely handling.

4. PLC is generally less likely to break, but it does not mean it will not break. Generally, it is more likely to burn contacts and power supplies. The problem handling is relatively simple and quick. If the program is lost or the motherboard is faulty, it will cause the entire production line to be paralyzed and require timely assistance from a professional company.

5. The frequency converter and tension control system, as they are used in this type of equipment, consume relatively large power. If attention is not paid to cold cutting and dust removal at the site, it is also easy to cause shutdown during production due to high temperature and static electricity.

Through the above introduction, I hope everyone has a certain understanding of the principle composition of the meltblown nonwoven fabric production line and the equipment maintenance precautions. The nonwoven fabric manufacturer, Jiangmen Duomei Nonwoven Fabric Co., Ltd., is a professional nonwoven fabric enterprise for medical and health materials. Its main products include: hydrophilic nonwoven fabric, water-repellent and skin-friendly nonwoven fabric, various hole-type hydrophilic perforated nonwoven fabric and various pressure-point nonwoven fabric front waist pads. The company's products are widely used in medical and health, maternal and child hygiene products, adult diapers, etc. Welcome all sectors to purchase and consult.

Some of the content of this article is compiled from online sharing. If there is any infringement, please contact the editor to delete.