At present, most of the bubble film machines (air cushion film machines) belong to the hydraulic transmission bubble film machine (air cushion film machine), and the power in the hydraulic transmission system is provided by the motor driven oil pump. During the extrusion cycle, the bubble film machine needs different flow rates and pressures in different processes. It must rely on the flow valve and pressure valve to adjust the flow and pressure required for different processes. Because the dosing pump cannot adjust the output power, it is redundant. The energy can only be consumed in the baffle, the oil leakage, and the temperature rise of the oil, which aggravates the wear of various valves, and causes the oil temperature to be too high, the motor noise is too large, and the mechanical life is shortened. Moreover, the capacity of the designed motor is much higher than the actual need, and there is a phenomenon of “large horse-drawn car”, resulting in a large waste of electric energy.
Bubble film machine
The completion of each action in the extrusion process has a subtle fit of several parameters such as time, pressure, speed, position, etc., that is, the displacement at a certain position has a corresponding pressure and speed, and at different positions and times. Its pressure and speed are variable. At the same time, after each action is completed, a termination signal is sent to the program controller, and the program controller receives the signal and then issues an instruction to perform the next action.
Bubble film machine (air cushion film machine) energy saving principle
The traditional bubble film machine (air cushion film machine) uses a fixed pump to supply oil. The speed and pressure requirements of each action in the production process are different. It is the overflow of the proportional valve through the bubble film machine (air cushion film machine). The adjustment method bypasses the excess oil back to the oil tank. During the whole process, the rotation speed of the motor is constant, so the oil supply quantity is also fixed, and since the execution action is intermittent, it is not possible to be full load. Therefore, there is a lot of wasted space for quantitative oil supply.