First, the working principle of food packaging machine The current pillow automatic packaging machine is designed and produced by domestic leading and most mature technology. It brings together the essence of many years of experience in packaging machinery. The packaging machine can adopt various composite packaging film coils. Block food is packaged, which is very suitable for the needs of users.
1) The electrical part of the automatic packaging machine generally consists of the following:
a) The main control circuit consists of a frequency converter and (PLC) control core;
b) The temperature control circuit is composed of intelligent temperature control meter, solid state relay, thermocouple element, etc. The temperature control is precise, the display is intuitive and the setting is convenient;
c) Multi-point tracking and detection by photoelectric switch, electromagnetic proximity sensor, etc.;
2) Fully automatic pillow working principle:
With the improvement of the degree of automation, the operation, maintenance and daily maintenance of the packaging machine are more convenient and simple, and the professional skill requirements of the operator are reduced. The quality of the product packaging is directly related to the temperature system, the accuracy of the host speed, and the stability of the tracking system.
The tracking system is the control core of the packaging machine, and the forward and reverse two-way tracking is used to further improve the tracking accuracy. After the operation, the film mark sensor continuously detects the film mark (color mark), and the mechanical part of the tracking micro switch detects the position of the machine. The above two signals are sent to the PLC. After the program operation, the output of the PLC is Y6 (positive Chasing), Y12 (anti-chasing) control tracking the forward and reverse tracking of the motor, timely finding and correcting errors in the production process of the packaging materials, and accurately avoiding the waste of materials. If the technical requirements are not met after the predetermined number of times of tracking, the test can be automatically stopped for inspection to avoid the generation of waste products.
Thanks to the use, the chain drive is greatly reduced, the stability and reliability of the machine operation are improved, and the noise of the machine operation is reduced. It ensures the high-tech, high-efficiency and high-tech level of the packaging machine with high efficiency, low loss and automatic detection. It has both a beautiful and stylish appearance and a healthy and astute mind.
Although the transmission function of the food packaging machine is relatively simple, it has high requirements on the dynamic performance of the transmission, and the system requires fast dynamic following performance and high speed stability. Therefore, we must consider the dynamic technical specifications of the inverter, and select high performance to meet the requirements.
SAJ8000G vector can meet the requirements of packaging machine because it has the following characteristics:
1) Apply vector control technology to automatically correct the frequency to achieve the effect of stable motor speed when the load changes;
2) It has high steady speed accuracy and fast dynamic response, which can meet the transmission control requirements of high performance applications. Reduced transmission system failure
The resulting time and economic loss. At the same time, the speed sensor is omitted, which has lower maintenance costs.
3) It has the advantages of rich functions, stable performance, miniaturization and low noise operation.
Second, the advantages of applying easy energy frequency control equipment
1) Simplify the transmission system, greatly reduce the failure rate and reduce the maintenance cost of the enterprise.
2) Increase production and reduce costs. It can improve production technology, improve product output and quality, and effectively save costs.
The greatest benefit is now.
3) Automate control and improve functionality.
4) Through the functions of torque compensation, anti-stall and restart, the non-tripping operation is realized; the quality of the products produced is stable and the efficiency is improved.
Third, SAJ8000G vector universal inverter in the food packaging machine application schematic
Main parameter settings: 
Function and function:
The self-fault relay realizes the switch self-locking function, and after the FWD is disconnected from the DCM, the jog operation can be realized. This function is the application of the SAJ8000 series of flip-flops to achieve contactless control.
Food machinery has been used so far and has achieved good results. Explain that the application of our SAJ8000 series inverters in food packaging machinery is successful.