The workflow of Plastic Lotion Pump:
1. When the pressing head is pressed once, the pressing head moves the piston head through the connecting rod to compress the spring together. In the process of compressing the spring, the outer wall of the piston rubs against the inner cavity wall of the cylinder, thereby prompting the piston to open the discharge hole of the piston head
2. Press reciprocating, and press the spray pump several times to exhaust all the air in the cylinder.
3. Inhale liquid, the spray pump presses the pressure head by hand, compresses the air in the cylinder through the connecting rod, piston head, and piston. After releasing the pressure head, the spring loses pressure, so the return movement is performed. The piston also rubs against the inner wall of the cylinder and moves downward. At this time, the liquid storage chamber in the cylinder is in a vacuum suction state, and the ball valve is sucked upward, and the liquid in the bottle is sucked into the liquid storage chamber in the cylinder through the straw.
4. To store the liquid, the spray pump draws the liquid many times by pressing the pressure head many times, so that the liquid is stored in the cylinder until the liquid is full.
5. After the liquid is discharged, after the liquid in the cylinder liquid chamber is full, press the pressure head again, and the liquid is directly discharged into the nozzle by the pressure head through the discharge hole.