After starting the motor, the oil enters the gear pump or the vane pump through the oil filter through the oil filter.
The A gear pump discharges the low pressure oil to the one-way valve, and the oil of the low-pressure check valve is input into the oil cylinder, so that the plunger rises rapidly. After the mold is closed, the low pressure valve is automatically closed, and the low-pressure oil is unloaded through the overflow valve, and this is The high-pressure oil outputted by the gear pump passes through the right-angle check valve and is discharged into the cylinder to form a set high pressure.
The B-blade pump and the gear pump are combined to form a double pump, which enters the cylinder through the high and low relief valves and rises rapidly. After the mold is closed, the low-pressure oil is unloaded through the overflow valve, and the high-pressure oil drives the plunger to reach the set pressure and stops working.