The magnetic pump is mainly composed of several parts, including the pump head, magnetic drive (magnetic cylinder), motor, and base. When the motor drives the outer magnetic rotor to rotate through the coupling, the magnetic field can penetrate the air gap and the non - magnetic isolation sleeve, driving the inner magnetic rotor connected to the impeller to rotate synchronously. This achieves contact - less synchronous power transmission, transforming the dynamic seal structure prone to leakage into a zero - leakage static seal structure. Subsequently, the impeller starts to rotate, and through centrifugal force, it sucks the shampoo in from the inlet and pushes it out to the outlet.
Typically, a metering method combining time and speed adjustment is adopted. The filling volume of the shampoo is precisely controlled by regulating the running time and rotational speed of the magnetic pump. For example, after setting a certain running time and rotational speed, the magnetic pump operates at this speed within this period, sucking the shampoo from the storage tank and accurately filling it into the packaging containers.
An anti - dripping device is installed at the filling head. After the filling is completed, it can promptly cut off the flow of the shampoo, preventing it from dripping outside the packaging container or onto the conveyor belt. At the same time, the control system of the filling machine, based on preset filling parameters such as filling volume and filling speed, precisely controls the start - stop of the magnetic pump and the lifting of the filling head, ensuring that the shampoo is accurately filled into each packaging container.
