JiangsuHH Nonwovens Machinery CO., LTD. production line This utility model touches a melt-blown die head of a melt-blown machine, which includes a support. The upper surface of the support is fixed to the barrel, the lower surface of the support is connected with a heating block, and the center of the heating block is connected. The hole is connected to the draft tube, and the support plate is connected to the capillary tube in the draft tube; the lower part of the heating block is fixed to the air distribution device by the support plate and the second support plate set up and down; the air distribution device has connected air inlet holes and diversion A channel, a diagonal tube is fixedly connected between the side wall of the diversion channel and the support plate, a second diagonal tube is connected to the second support plate, and the diagonal tube and the second diagonal tube are respectively connected with the diversion channel;

The center of the support plate has a through hole, the center of the second support plate has a second through hole, and the end of the capillary is placed in the through hole. The structure of the utility model is relatively simple. The polymer melt is stretched twice through two layers of hot air flow channels, which greatly improves the uniformity and strength of the fiber web, and then improves the quality of the product. The utility model touches the category of textile machinery.

The number of perforations per meter of spinneret in a single row of non-woven fabric production equipment is 2880. If three rows are selected, the number of perforations per meter of spinneret can reach 8640, so that its output can be comparable to ordinary meltblown fibers quite. Because thin spinnerets with high-density holes are expensive and easy to crack (crack under high pressure), Jiangsu Huihuang has developed a new bonding technology to enhance the fastness of the spinnerets and prevent them from breaking. Leakage due to high pressure. Nano melt blown fibers can be used as filter media, which can significantly improve the filtration efficiency. There are also data showing: because the fibers in the nanometer meltblown nonwovens are thinner. It is possible to select lighter weight meltblown fabrics and spunbond composites, and still accept the pressure of the same head, and the SMS products made from it can reduce the proportion of meltblown fibers. The melt-blown process requires a lot of hot air. The compressed air output from the air compressor is dehumidified and filtered, and then sent to the air heater for heating, and then sent to the melt blown die assembly. The air heater is a pressure vessel.

Antistatic agents and binders, etc.; wide chemical acceptance; easy to handle after incineration into ashes; meet the requirements of the food and beverage industry; will not produce leachables and releases. Filtration accuracy: 1μm, 3μm, 5μm, 10μm, 20μm, 30μm, 60μm; applicable PH: 1~13; large pressure difference: positive 0.4Mpa; working temperature: under 0.25Mpa, <70°C; sterilization: resistant Sterilized by on-line steam at 126°C for 30 minutes; inner: the water extract of the filter column is tested by lAL, and the inner content is lower than 0.5EU/ml. Positive pressure difference resistance meltblown cloth. The meltblown cloth uses polypropylene as the main raw material. The fiber diameter can reach 1~5 microns. These ultrafine fibers with a common capillary structure increase the number and surface area of fibers per unit area, and then make The meltblown fabric produced by Jiangsu Huihuang's non-woven fabric production equipment has good filtration, shielding, heat insulation and oil absorption. It can be used for air, liquid filtration materials, isolation materials, absorption materials, mask materials, warmth materials and wipes.

The fibers are cooled and finally consolidated into short and thin fibers. The die assembly is the key machinery in the melt blown production line, which is composed of a polymer melt distribution system die system, a stretched hot air pipeline channel, and a heating and heat preservation element. The die system of the meltblown die assembly usually consists of a bottom plate, a spinneret, an air plate, a heating element, etc., and is an important part of the entire assembly. The uniformity of meltblown nonwovens is closely related to die planning and production. Generally, the processing accuracy of the melt-blown die head is very high. The melt-blown method relies on the high-speed hot air flow to rapidly stretch and solidify the newly extruded polymer melt. The advantage is that the process is short, and it can be spun directly into non-woven fabrics.

The process principle of the melt blown method: the polymer masterbatch is put into the extruder and melted in the extruder at a temperature of about 240°C (the main resin selected for the polypropylene-melt blown method). The melt passes through the metering pump and reaches the meltblowing die. The metering pump measures the melt flow output to the nozzle.

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