The utility model discloses a medical breathable protective film composite material production equipment. Involving medical use. Food. Industry. agricultural by-product. In the field of military equipment packaging. The advantage lies in high production efficiency. High degree of automation. Wide range of applicable materials.
Efficient and energy-saving PE breathable film is a new type of material internationally, which is widely used in various fields of daily life due to its breathable and leak proof characteristics, such as sanitary napkins, diaper bottoms, medical surgical gowns, respiratory paper fabrics in the construction industry, and other packaging products. The breathable membrane contains a large proportion (50-60%) of inorganic fillers with ultrafine density, which are processed through casting and stretching processes to form numerous micropores with uniform distribution. The pore size of micropores ranges from 0.1 to 10 microns and forms channels for gas to pass through, while only allowing gas to pass through without leaking liquid.
This device is used for {PE. PET. PS. PVC. PA. PP} materials. In addition, PLA biodegradable masterbatch and functional additives are added. And TPEE polyester elastomers.
The one-step casting and stretching breathable film production line consists of an automatic raw material supply system, a twin-screw extruder mixing host, a screw pump, an extrusion molding system, a stretching and shaping system, and a cooling and winding system. Continuously complete the process of conveying, proportioning, feeding, mixing and dispersing, extrusion, stretching and shaping, and winding of raw materials. Has the following advantages:1. The entire production line adopts a continuous production process with high production efficiency. Complete the entire production process from raw materials to breathable film in one go.
2. The automatic raw material supply system completes the storage and transportation of various raw materials, and accurately feeds them into the twin-screw extruder in proportion. High degree of automation, produced before
There are no environmental issues such as dust pollution during the process.
3. The twin-screw mixing extruder adopts a high torque transmission box, which has high production efficiency. The clearance between the barrel and screw is small, and the dimensional accuracy is high, achieving the dispersion and uniform distribution of inorganic fillers in PE resin, resulting in small pore size and uniform distribution of micropores in the film.
4. The extrusion molding system adopts precise molds and pressure rollers, and the film formed by casting is stable in width and uniform in thickness.
5. The stretching and shaping system consists of a heating device, a stretching device, and a cooling device, with stable operation and uniform stretching ratio.
Production process - S1 raw materials are matched according to the formula process requirements. Enter the mixing equipment and mix evenly. Enter the twin-screw extruder. After changing the network device. T-shaped hanger mold. Enter S23 mirror roller rolling forming. S3 heating roller preheating. S4 multiple roller stretching. Form tiny pores. Due to the presence of inorganic fillers in the raw materials. After heating and stretching, there is hot air and odor. S5 enclosed heat recovery device for processing. S6 multi stick shaped cooling. S7 slitting and edge material recycling device. S8 winding device. S9 material unloading device. S10 Electrical Control.
