TPU welding machine Processing.The principle of using the PP packaging belt production line of the embossing machine

　　1. The main and auxiliary drives of the PP packaging belt production line of the embossing machine are composed of a speed regulating motor, a reducer, and a shaft sleeve. The forming part consists of a screw barrel, a machine head, and a die. The raw materials are heated and extruded from the hopper to the screw barrel to produce the initial embryo. Temperature control: The first section of the fuselage is 120 degrees, the second section is 170 degrees, the third section is 220 degrees, and the nose is 250-280 degrees.

　　2. The water tank under the PP packaging belt production line of the embossing machine cools and sets the initial mold of the main and auxiliary machines. After the material is discharged from the machine head, the temperature is very high, and it should be immediately cooled in water, because isotactic polypropylene is prone to forming a crystal structure under rapid cooling, and the crystal molecular structure is relatively loose. Easy to stretch orientation to obtain high-quality products. (Kind reminder: The cooling water temperature of the packaging belt production line is generally controlled at 30-40 degrees Celsius, and the distance between the mold mouth of the packaging belt production line and the water surface should be 15-45 millimeters.)

　　3. The first traction of the PP packaging belt production line of the embossing machine is composed of a speed regulating motor, traction roller, reducer, and chain drive. It transports the solidified primary embryo to the oven.

　　4. The embossing machine PP packaging belt production line has a secondary heating oven for easy stretching; The main purpose of stretching is to improve the longitudinal strength of the packaging belt and reduce elongation. The packaging belt production line is heated three times by the oven to eliminate tensile stress, and the upper water tank is used to eliminate thermal stress before shaping.

　　5. The embossing machine PP packaging belt production line is driven by a variable speed electric motor through belt drive, chain drive, and gear drive to the second traction, to the embossing, and then to the traction.

　　① The second traction is used to re stretch and shape the reheated initial embryo through a tensile rod, and at the same time, it is transported to the embossing roller;

　　② After stretching, the packaging belt passes through two patterned rollers and is pressed with patterns. Its function is to increase friction during use, prevent slipping, and look beautiful and generous from the outside. After embossing the surface of the product with embossing rollers, it is transported to the upper water tank or oven;

　　③ The packaging belt production line transports the forming of the upper water tank to the winding machine through a third traction.

　　6. The PP packaging belt production line of the embossing machine is driven by a variable speed motor, which is transmitted to the winding shaft and stroke rod through belt transmission and chain transmission. It is the process of rolling qualified products into individual products with specified appearance and quality.

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