Structural principle and precautions of meltblown non-woven production line

Meltblown non-woven fabric is different from traditional spunbond production. It uses high-speed hot air to stretch the polymer trickle from the spinneret of the module, turning it into an ultra-fine short The fiber is guided to the roller and cooled by its own adhesive force to form.


Its production process is a flow process, from the loading and unloading of polymer materials, to the melting and extrusion of materials, through the metering of the metering pump, and the use of special spinneret modules to spray out, high-speed heat The airflow guides and stretches the polymer trickle from the spinneret reasonably. After cooling, it is formed on the roller and the material is received and processed in one go. Any problem in any link may cause production interruption. It must be discovered in time Problem, solve the problem in time.


Meltblown non-woven fabric production line, including many single equipment, such as polymer feeding machine, screw extruder, metering pump device, spinneret module, heating system, air compressor and cooling System, receiving and winding device. These devices work alone and are under the joint command of plc and industrial control computers to form a synchronization and tension control system. It is useful for inverters to control extrusion and transmission, winding, etc., as well as temperature control systems to control heating. Control fans and cooling, etc. At present, the domestic spinneret module can not achieve very high precision and needs to be imported from abroad, while other accessories can already be produced in China at present, and the maintenance efficiency will be relatively higher.


Some mechanical problems are easy to find and solve. For example, if a certain transmission roller bearing is broken, it will make abnormal noises, and it is easy to find suitable accessories to replace. Or the reducer of the screw is broken, which will obviously cause speed fluctuations and make loud noises.


However, for electrical problems, if there is a failure, it is relatively hidden. For example, if a certain contact of the PLC is broken, it will cause the linkage to be abnormal. A certain drive optocoupler of the frequency converter is abnormal, which causes the motor's three-phase current to fluctuate severely and even stops due to lack of phase. The parameters on the winding tension are not well matched, which will cause the winding to be irregular. Or a certain line leaks, causing the entire production line to trip and fail to boot.


When the touch screen touches the glass, it needs to be dealt with in time because it is pressed too much, or dust and grease ran to the inner cable head, causing poor contact or aging of the touch panel, causing pressing failure or failure.


PLC is generally less broken, but it does not mean that it will not be broken. Generally speaking, most of the contacts and power supply are burned. The relative problem is solved easily and quickly. If the program is lost or the motherboard has a problem, the entire production line will be paralyzed. , Need to find a professional company to help solve it in time.


Inverter and tension control system, because the power used in this type of equipment is relatively large, if the site does not pay attention to cold cutting and dust removal, it is easy to stop due to high temperature and static electricity during the production process.