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Analysis On The Functional Structure Of Quantitative Pump For Cosmetic Bottles

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Update time : 2022-12-07 16:07:58
Cosmetics, as messengers of beauty, are taking care of more and more people. Whether they are energetic young girls or peaceful and peaceful women, they are all fond of cosmetics and can't put it down.

Today, with the vigorous development of cosmetics, various cosmetics companies pay due attention to improving product quality, and pay great attention to the development of inner material formulas. At the same time, they also spare no effort to upgrade the carrier of cosmetics--packaging materials. With people's higher and higher requirements on how to use cosmetics more conveniently and protect cosmetics more safely, pumps, as the optimal solution, are being more and more applied to various cosmetic products.

There are all kinds of pumps on the market, with different sizes, shapes, and discharge conditions, etc., so what is the working principle of so many pumps? Is there any commonality between them?

lotion spray bottles

Two categories of cosmetic pumps
1. Quantitative pump: The power to spit out the material comes from the outside, usually by hand pressing;

2. Aerosol pump: The power to spit out the material comes from the inside, and it is necessary to add the material to the adapted aerosol tank and participate in the pressure gas at the same time;

Due to different power sources, the two types of pumps have great differences in their functional structures.
This article focuses on the functional structure of quantitative pumps for cosmetic bottles: a brief introduction to the classification of quantitative pumps, eight functional structures of quantitative pumps, and a graphic analysis of eight functional structures.

Introduction to the classification of quantitative pumps

Classified by spit out status:
A. Spray pump B. Lotion pump C. Foam pump

Classified by applicable product:
Eight functional structures of quantitative pumps

The above different types of pumps should have the following eight functional structures in order to achieve normal

1. Discharge channel
Generally, the parts that make up the channel include pressure head and nozzle, and the foam pump will be equipped with a filter pipe. The material in the container is pumped to reach the passage outside the container. This part will determine the discharge state of the material, whether it is mist, liquid or foam.

2. Suction channel
The passage through which the material in the container passes before entering the cylinder through the action of the pump core.
The parts that make up the channel are generally the suction pipe connected to the tail of the cylinder. For vacuum pumps, there is no suction pipe. The continuous upward movement of the large piston in the container or the shortening of the flexible container ensures that the material continues to contact the tail hole of the cylinder.

3. Pump material system
The general components include cylinder, piston, ball valve, connecting rod and plug sleeve (lock cover). Under the action of force, the piston reciprocates in the cylinder, and the valve structures arranged at the front and rear ends of the pump body will open and close sequentially, and the material in the container will enter the pump body from the suction channel under the action of the pressure difference. And the process of reaching out of the container through the discharge channel is the cooperation of multiple parts to complete the system action. The parts that make up the system are generally cylinders, pistons, valves, connecting rods, plug sleeves, and the cooperative components of the power arrangement.
4. Power arrangement
The piston needs force to reciprocate in the cylinder. The power source of the down stroke is applied by the user outside, so that the upper pressure rod drives the piston to overcome the spring force and the friction force between the piston and the cylinder to move downward. When the user releases the external force, the piston moves in the opposite direction under the action of the spring force. The main parts constituting the arrangement are upper pressing rods and springs, which must be attached to the structure with parts such as cylinders as the base to function.

5. Convection channel
The material body is continuously spit out from the container to the outside of the container, and the volume occupied by the spouted material body must be compensated by continuous air entry to ensure the uniform pressure, so that the pump head can continue to work.

6. Anti-opening structure
Prevention of Unintended Opening
In order to prevent the material body from being ejected due to unexpected pressing of the pump head during the process of packaging, transfer, and transportation before it is delivered to the customer, it is necessary to protect the pump head against opening. The commonly used structures with this function are: cover (cover) protection, clip (buckle) protection, thread protection, directional opening protection and other anti-pressure protection structures.

7. Connection parts
A part that makes a useful connection between the pump and the container. The general components include screw caps, card caps, and are equipped with a tightening piece to ensure airtightness.

8. Accessory accessories
It plays a decorative role, and some also serve as structural parts. Commonly used structures are: aluminum sleeve for pressure head, plastic sleeve for pressure head, aluminum sleeve for screw cap, plastic sleeve for screw cap, etc.

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