At present, the pillow type automatic packaging machine adopts mature and reliable technology design and production, and brings together the essence of many years of experience in the packaging machinery field. The packer can use various composite packaging membrane rolls to package the lump food, which is very suitable for the needs of China's vast customers.
working principle
The control core of the packaging machine is the tracking system, which adopts forward and backward two-way tracking to further improve the tracking accuracy. After the machine is running, the film marking sensor constantly detects the film mark (color code), and the tracking micro switch of the mechanical part detects the position of the machine. The above two signals are sent to PLC. After program calculation, the output Y1 (forward tracking) and Y2 (backward tracking) of the tracking motor control the positive and negative tracking of the tracking motor, so as to detect and correct the errors of packaging materials in the production process in time Correct compensation and correction, avoid the waste of packaging materials. If the detection can not meet the technical requirements after tracking the predetermined number of times, it can automatically stop for inspection to avoid the production of waste products.
Electrical system composition of automatic packaging machine
Although the application function of the transmission system used in the food packaging machine is relatively simple, it has higher requirements for the dynamic performance of the transmission, and the system requires faster dynamic following performance and high steady speed precision. Therefore, it is necessary to consider the dynamic technical index of frequency converter and select high-performance inverter to meet the process requirements.
3.1 the electrical part of the automatic packaging machine is generally composed of the following:
(1) The main control circuit is composed of inverter and PLC.
(2) The temperature control circuit is composed of intelligent temperature control meter, solid state relay, thermocouple components, etc. it has the advantages of accurate temperature control, intuitive display and convenient setting.
(3) Multi point tracking and detection are realized by photoelectric switch and electromagnetic proximity sensor.
Features of Tianlang Weichuang inverter
Inverter can meet the requirements of packaging machine, because it has the following characteristics:
(1) The slip frequency automatic compensation control technology is applied to automatically correct the frequency to achieve the effect of motor speed stability when the load changes.
(2) It has high speed stability precision and fast dynamic response, which can meet the requirements of transmission control in high performance occasions. It reduces the time and economic loss caused by transmission system failure. It has low maintenance cost.
(3) It has the advantages of rich functions, stable performance, miniaturization and low noise operation.
Several advantages of frequency control
(1) Simplify the transmission system, greatly reduce the failure rate, reduce the enterprise maintenance costs.
(2) Increase production and reduce costs. It can improve the production technology, improve the output and quality of products, and can effectively save costs and achieve greater profits.
(3) The software of control is realized and the performance is improved.
(4) Through the functions of torque compensation, stall prevention and restart, the non tripping operation is realized, and the product quality is stable and the efficiency is improved.
Due to the adoption of frequency conversion speed regulation, the chain drive is greatly reduced, the stability and reliability of the machine operation are improved, the noise of the machine operation is reduced, and the multi-functional and fully automatic high-tech level of low loss, automatic detection and other functions of the packaging machine is ensured.
