Structure principle and Precautions of melt blown nonwoven fabric production line:
Different from the traditional spinning viscidity method, the meltblown fabric cloth USES the high-speed hot gas flow to stretch the polymer from inside the spinneret hole of the module, and turns into a kind of super-fine short fiber, which is guided to the top of the roller for cooling and forms by its own adhesive force.
Its production process is a kind of flow process, material from the polymer material and the material of the fusion and extrusion, through metering pump metering, using specialized jet hole pattern group to jet, the jet stream of high-speed hole of polymer trickle reasonable drawing guide, after cooling to the roll forming, the bottom material receiving process, are coherent, any link to appear problem, can cause disruptions, to find problems in time, solve the problem of processing in a timely manner.
The melt blown nonwoven fabric production line includes a number of single units, such as a polymer feeder, a screw extruder, a metering pump, a spinneret hole module, a heating system, an air compressor and a cooling system, a receiving and winding unit.These equipment work alone, by PLC and industrial control computer and other joint command, formed a synchronous and tension control system, useful to the inverter control extrusion and transmission, winding, etc., and temperature control system control heating, inverter will also control fan and cooling, etc.At present, the domestic spinneret hole module cannot achieve very high precision, so it needs to be imported from abroad, while other accessories can be produced in China at present, so the maintenance efficiency will be relatively high.
Some mechanical problems, easy to find and solve, such as a transmission roller bearing is broken, will send out abnormal sound, but also easy to find appropriate accessories to replace.Or if the screw reducer is broken, it will obviously cause speed fluctuations and make a lot of noise.
But electrical problems, if there is a fault, relatively hidden, such as a PLC contact is broken, will cause abnormal linkage.Some drive optical coupler is not normal, which causes the motor three - phase current fluctuation.If the parameters of the winding tension are not well matched, the winding will be irregular.Or a line leakage, causing the entire production line trip and unable to start.
If the touch screen touches the glass because of too much press, or dust and grease get into the inside of the line, resulting in poor contact or aging of the touch pad, resulting in ineffective press or failure, it should be dealt with in time.
PLC is generally less bad, but does not mean that it will not be bad, generally burn contact and power supply, relative to the problem to deal with, simple and quick, if the program is lost or the motherboard has problems, will cause the entire production line paralysis, need to find a professional company to help solve.
Inverter and tension control system, because in this type of equipment, the use of power is relatively large, if the site does not pay attention to cold cutting and dust, it is easy in the production process, due to high temperature and static electricity and shut down.
Jincheng company officially mass-produced in mid-February 2020,and provided high-quality and stable mask core materials-Melt blown fabric-for many major mask manufacturers in a timely and accurate manner,with making a small contribution to our country’s efforts to fight the epidemic.Our company is the first enterprise in Fujian Province to successfully transform the production of mask melt blown fabrics,which has been highly valued and praised by the Fujian Provincial Government,and our company was invited to draft”Fujian Province Mask Melt-blown Fabric Group Standard”as one of the units.
Post time: Aug-29-2020