Brief Description:The screw and barrel of the engineering plastic pelletizing machine are both made from imported high-strength, high-quality carbon steel, ensuring durability; it fully utilizes a high-pressure friction continuous heating system for automatic production heating, avoiding continuous heating and thus saving electricity and energy.
Engineering plastic pelletizing machineFeatures:
All recycled materials can be processed for production without needing to be spun dry or dried by baking or sun exposure after sorting and crushing, suitable for both dry and wet use.
2, From raw material crushing, washing, feeding to pelletizing, the entire process is automated;
3. Fully utilize the high-pressure friction continuous temperature rise system for automatic heating production, avoiding continuous heating and saving electricity and energy;
4. It adopts a split-type fully automatic power distribution system to ensure the safe and normal operation of the motor;
5. The screw and barrel are both made of imported high-strength, high-quality carbon steel, ensuring durability and longevity.
6. The machine has an attractive and elegant appearance.
Arrangement principles:
The speed of the screw shafts at the engagement point is opposite, with one screw pulling the material into the engagement gap and the other pushing the material out of the gap, resulting in the material transferring from one screw to the other, advancing in an "∞" shape. Due to the very small gap in the engagement area and the opposite velocity directions of the threads and grooves, a high shear rate is achieved, providing excellent self-cleaning, which can scrape off any accumulated material adhering to the screws, thus keeping the residence time of the material very short. Therefore, engineering plastic pelletizing machines are mainly used for compounding and pelletizing.
2, Melt Section: Toothed disks and kneading disks can be used to accelerate the melting and mixing of materials. In practice, forward conveying elements are generally used to separate the mixing elements to avoid creating a significant temperature gradient in the melt zone.
3, Mixing Section: Distributive Mixing: using narrow elements with smaller stagger angles; Dispersive Mixing: using wide elements with larger stagger angles, left-handed conveying kneading discs or multi-toothed discs
4. Venting Section: Before the vent, reverse-threaded elements are typically set to block the melt, allowing the material to fully fill the screw groove. For extruders used for devolatilization and drying, multiple vents should be set, thus an alternating method of using reverse kneading discs and reverse-threaded elements can be adopted. In the middle of the venting section, large-pitch conveying elements with deep grooves are usually installed.
5. Melt Conveying Section: Toothed disc elements can be used to improve the homogeneity of the melt, while small pitch screw elements are employed to enhance the forward conveying capacity.
Precautions
The pelletizer should run in the forward direction; avoid reverse rotation.
2. It is strictly prohibited to operate the pelletizer when it is cold and empty; it must be operated with material after preheating. This can prevent the occurrence of barrel sticking (shaft hugging) phenomena.
3. It is strictly prohibited to allow metal objects or other debris to enter the feeding port and vent of the pelletizer to avoid accidents and impact on production.
Precautions during the operation of engineering plastic pelletizing machine
1. Always pay attention to the changes in the machine body temperature. When touching the strands with a clean hand and they do not stick, the temperature should be immediately increased until the strands stick to the hand, which is considered normal.
2. If the bearing area of the gearbox feels hot or is accompanied by noise, it should be inspected and lubricated promptly.
3. If the bearing areas at both ends of the main unit's bearing housing become hot to the touch or produce unusual noises, stop the machine for inspection and apply grease. During normal operation, add grease to the bearing housing every 5-6 days.
4. Pay attention to understanding the operating patterns of the machine; for example, the temperature and rotational speed. Adjustments should be made promptly based on the circumstances.
5. When the machine body operates unstably, attention should be paid to checking whether the coupling fit clearance is too tight, and it should be adjusted to be looser in time.
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).
