The large plastic storage cylinder blow molding machine extruder squeezes the molten material into the storage tank. When the material level of the storage tank rises to a certain height, the displacement sensor 2 sends a detection signal, and after the control part receives the signal, press the advance The adjusted program outputs an analog signal composed of a plurality of voltage values, and the proportional amplifier drives the proportional valve to move, and the gap of the die-core (the wall thickness of the parison) is adjusted by controlling the movement of the cylinder. At the same time, the storage cylinder piston moves downward and the parison is extruded. The gap of the core of the die is determined by the preset data before the program is run, so the wall thickness of the parison can be arbitrarily adjusted. When the preset voltage value output ends, the control core moves downward to close the gap, and the cutter cuts the blank, enters the mold, and then blows. After cooling, the product was gripped by a robot. After the gap of the core of the die is closed, the molten material is again squeezed into the storage tank to prepare for the next injection.
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