Why Does The Lotion Pump Not Rebound After Pressing The Head

In order to avoid such a situation, in the production process, we should first detect whether the length of the spring is standard, the difference is thousands of miles, the role of the length on the piston can not be ignored, if short, then it will cause the piston return is not in place, directly cause the head to press down, rebound can not rebound or slow rebound.

Secondly, detect whether the thickness of the piston fits the body, in the piston movement, any trace of void, will cause suction weakness, press the head can not press the body. Due to the nature of thermal expansion and contraction of plastics, normal pistons are quite important to ensure the quality of the emulsion pump.

Finally, let’s analyze the body, in view of the scalability of plastics, if the injection molding is improper, insufficient injection will cut off a thin layer of the body, resulting in uneven inner walls, and the piston stamping process inevitably leaves gaps, resulting in the inability to discharge.