External Spring Foam Pump

External Spring Foam Pump

Background

At present, the foam pumps installed on bottles such as cosmetic packaging bottles, sanitary product packaging bottles, medical disinfection product packaging bottles, daily necessities packaging bottles, etc., are all built-in spring structures, and their liquid/or milky fluid or semi-fluid pumps When the fluid to be packaged is compressed by the pump body, it must pass through a spring that is set in the pump body in a built-in manner. Not only does the spring generate resistance to the packaged product, which results in insufficient flow, defects and drawbacks, but more importantly There are also deficiencies, deficiencies, defects, and drawbacks that springs pollute the packaged objects, the springs and the packaged objects will produce chemical reactions and generate various harmful substances, resulting in insufficient environmental protection, poor sanitation, and inability to guarantee human health. . Based on the inventor's professional knowledge and rich work experience and the pursuit of excellence in the business, it has been successfully developed by adopting the key technology of "spring external" on the basis of serious and full investigation, understanding, analysis, and summary of the existing known technologies.

Advantage

For nozzles and pump heads, everyone should know that springs need to be placed inside the product center. The external pump, that is, the spring in the center of the nozzle/pump head, is visible externally, and is generally placed above the pump core. The assembly is directly connected to the nozzle/pump head cap. The advantage of an external pump is that it does not directly contact the liquid in the bottle, which is environmentally friendly and sanitary, and it can also avoid the rust of individual springs, which will affect the quality of the product in the bottle. For  foam pump,The foam liquid will be converted into foam in the pump core, and it will neither touch the spring nor allow the spring to be immersed in alkaline foam liquid for a long time.

Disadvantage

The pressing force of the external spring foam pump is greater than the pressing force of the built-in spring foam pump. Limited by the existing technology, the possibility of solving this problem in the short term is not high.

Another shortcoming, and the biggest one, is that the cost of the external spring foam pump is higher than the cost of the internal spring foam pump. Mainly technical cost. Fortunately, as the technology becomes more mature, the cost of our external spring foam pump is getting closer and closer to the cost of the built-in spring foam pump. I believe that in the near future, the cost of external spring foam pumps will be further reduced. It is also a future trend to replace the internal spring foam pump with an external spring foam pump.