Brief Description: The production of twin-screw masterbatch pelletizing machines involves a wide range of fields in the national economy, enabling the recycling of large quantities of film waste. In today's society, China is a major energy consumer, with energy consumption accounting for about 12% of the total energy consumption in the national economy.
The production of twin-screw masterbatch pelletizing machines involves a wide range of fields in the national economy, enabling the recycling of large quantities of film waste. In today's society, China is a major energy consumer, with energy consumption accounting for about 12% of the total energy consumption in the national economy. However, in recent years, the country has been vigorously promoting the development and transformation of this industry, and the huge market demand has also made the market for this equipment increasingly promising.
The control system of the twin-screw masterbatch pelletizing machine includes a heating system, cooling system, and process parameter measurement system, mainly composed of electrical equipment, instruments, and actuators (i.e., control panel and operation desk). Its main function is to control and adjust the drive motors of the main and auxiliary machines, output the speed and power that meet the process requirements, and enable the main and auxiliary machines to work in coordination. It also detects and adjusts the temperature, pressure, and flow of the plastic in the extruder, realizing control or automatic control of the entire unit.
Today, the editor will share with you the heating methods for the main and auxiliary machines of the twin-screw masterbatch pelletizing machine:
1. Remove the protective plates of the feeding port and exhaust port. Metal objects must not approach the feeding port and exhaust port to avoid falling into the screw barrel and causing unnecessary losses.
2. Start the main and auxiliary motors separately and observe whether the rotation direction is correct. If it is reversed, two of the three-phase power supply phases can be swapped (Note: The start time should not exceed 10 seconds).
3. First, heat the auxiliary machine die head, and after 20 to 40 minutes, other temperature zones can be opened (because the die head has a large volume).
4. If it is an electric die head, the screen plate needs to be lifted 8 to 10mm before heating to avoid the die head and screen plate getting stuck due to heat. After the new machine is sufficiently heated, all bolts on the electric die head should be tightened once with a certain torque before starting the machine.
5. During heating, check whether all heaters are heating (use the back of your hand to feel if there is heat about 3cm above each heater). If everything is normal, record the heating current data for each zone (which varies by model). This current data can monitor whether the heaters are working properly. If the current drops, it indicates that one heater in that zone is not heating, and it should be checked, repaired, or replaced in time to avoid insufficient temperature and damage to the equipment.
6. The auxiliary machine die head heating is set to 180 to 200℃, and other heating is set to 200 to 250℃ (the temperature control meter will show a red light) and then maintain the temperature for 30 minutes.
7. After the insulation time is sufficient, manually rotate the main/auxiliary machine and the reducer's pulley for more than five turns. If it can rotate without jamming, the main machine can be started. The main motor of this machine adopts a "star-delta" start. When the start button is pressed, the motor starts with a star connection state for reduced voltage starting, and after about 2 to 4 seconds (depending on the motor's starting condition at that time, but not too long), the motor automatically switches to a delta connection state for operation. Each machine must be equipped with a safety ground wire.
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).
