Brief description:The industrial plastic modification pelletizer, by completing the pelletizing process of powdered materials in a wet state, significantly improves the operating conditions for the pelletizing and subsequent processes (such as drying, packaging, etc.), generally reducing on-site dust dispersion by more than 90%.
The main advantages of a plastic twin-screw granulator:
As the granulation process is completed under wet conditions, the operating conditions for granulation and subsequent processes (such as drying, packaging, etc.) are significantly improved. Generally, this can reduce on-site dust dispersion by more than 90%. Granulation can prevent issues common with powdered products, such as caking, bridging, and pulsation, which affect usability. It also avoids secondary pollution caused by powder during use, thereby greatly improving the physical properties of the product.
The specific composition of the extrusion system in a plastic twin-screw granulator:
1. Screw: It is the main component of the extruder, directly related to the application range and productivity of the extruder, made from high-strength, corrosion-resistant alloy steel.
2, Barrel: It is a metal cylinder, typically made of alloy steel or composite steel pipe with an inner lining of alloy steel, which has high heat resistance, pressure resistance, strength, durability, wear resistance, and corrosion resistance. The barrel works in conjunction with the screw to achieve the crushing, softening, melting, plasticizing, degassing, and compacting of the plastic, and continuously and uniformly feeds the compound to the molding system. The length of the barrel is generally 15 to 30 times its diameter, based on the principle of ensuring adequate heating and plasticization of the plastic.
3, Hopper: The bottom of the hopper is equipped with a cutoff device to adjust and cut off the material flow. On the side of the hopper, there are sight holes and calibration measuring devices.
4. Die Head and Mold: The die head is composed of an alloy steel inner sleeve and a carbon steel outer sleeve, with a shaping mold installed inside. The function of the die head is to convert the rotational motion of the plastic melt into parallel linear motion, smoothly and evenly guiding it into the mold sleeve, and imparting the necessary molding pressure to the plastic. The plastic is plasticized and compacted in the barrel, passing through a multi-hole filter plate along a specific flow path through the die head neck into the die head shaping mold. The core and sleeve are properly matched, forming an annular gap with a continuously decreasing cross-section, allowing the plastic melt to form a continuous and dense tubular coating around the core wire.
Precautions for Using a Twin-screw Plastic Pelletizing Machine:
1. Turn on the power, set the temperature, and check if the heating is normal.
2. Clean the hopper and other units, as well as the water inlet and outlet pipes. Check the oil levels and lubrication status of all gear oils, engine oils, and high-temperature greases. For new machines, the gear oil should be replaced after six months. Moving parts should be lubricated at least once a week.
3. When the temperature is approaching the set point, prepare the material and start the main motor sequentially. The extruder's temperature must reach the set temperature before opening the feeding device to pour in the cleaning material or raw material to clean the residual substances inside the screw until the new material comes out. Then pause the extrusion, and quickly install the filter plate and die.
4. Close the die head, and after closing it, turn on the main screw motor of the pelletizer. The operator should stay away from the die head to prevent injury from a burst due to hard material blockage, until the die head extrudes the filament. Then, close the pelletizing hood and connect and secure the cutting blade assembly.
Nanjing Xintuo Intelligent Equipment Co., Ltd. was established on May 29, 2020, with Zhou Xianting as the legal representative. The registered capital is 10 million RMB, and the unified social credit code is 91320113MA21LF2H92. The company is located in the Baima Town Industrial Concentration Zone, Lishui District, Nanjing City. It belongs to the other manufacturing industry. Its business scope includes: Permitted projects: import and export of goods; import and export of technology (projects that require approval by relevant departments can only be carried out after obtaining such approval, specific business items are subject to the approval results). General projects: sales of intelligent material handling equipment; research and development of machinery and equipment; general equipment manufacturing (excluding special equipment manufacturing); specialized equipment manufacturing (excluding licensed specialized equipment manufacturing); sales of metal products; wholesale of electronic components; sales of instruments and meters; sales of artificial intelligence hardware; processing and sales of mechanical parts and components; general component manufacturing; sales of plastic products; production and sales of Class I medical devices; sales of Class II medical devices; sales of health supplies and disposable medical supplies; sales of special labor protective equipment; technical services, technical development, technical consultation, technical exchange, technology transfer, and technology promotion (except for projects that require approval, activities can be conducted independently according to the business license). The current operating status of Nanjing Xintuo Intelligent Equipment Co., Ltd. is active (in operation, open, registered).
