Ruian Tiansheng Packaging Machinery Co., Ltd. explains the structure of the bag making machine as follows:
A bag making machine is mainly composed of: storage device, stepping device, frequency conversion device, whole bag device, heat sealing cutter and control device. The main feature is that the storage device stores a corresponding amount of raw materials, the stepping device drives the raw materials, and the frequency conversion device drives the heat sealing cutter. The whole bag device completes the bag after producing a fixed number of bags. The heat sealing cutter controls the temperature of the raw materials through the thermostat. Sealing and cutting, the control device coordinates all aspects of actions as a whole.
The frequency converter adopts Delta M series frequency converter. Delta's M series inverters have functions such as automatic torque compensation, slip compensation, and automatic voltage stabilization. When the motor starts and stops frequently, it can effectively protect the motor and avoid the impact of the starting current on the power grid. At the same time, it can effectively achieve energy saving and consumption reduction. The thermostat uses Delta DTA4848R. Delta spacer has a self-tuning function, and the temperature error is controlled within 0.1 degrees. The main control methods are as follows: 1. Turn on the discharge switch and control the action of the storage motor through the storage photoelectric to store quantitative materials. 2. Turn on the heating control switch and heat the hot knife through the thermostat. 3. The raw material is driven by a stepper motor. The white bag sealing and cutting is to determine the stepper motor to take a fixed number of steps and stop to achieve fixed length control; the color bag sealing and cutting is to detect the corresponding signal by the electric eye and stop the stepper motor to achieve positioning control. 4. After the stepper motor stops, the three-phase asynchronous motor drives the hot knife for sealing and cutting. 5. After sealing and cutting to set the number of bags, proceed to the whole bag.
