Concept of bottle embryo prefrrm mould
Bottle embryo mold is a molding method that uses an injection machine to inject molten material into the mold to create a mold, and then puts the mold embryo into the blow molding mold while it is hot. Air is introduced to inflate the mold embryo.
Blow Mold.
The components of the bottle embryo mold
The injection mold mainly consists of three parts: the pouring system, molding parts, and structural parts. The pouring system and molding parts are the parts that come into direct contact with plastic, which are the most complex, variable, and require the highest machining accuracy parts in the mold.
The principle of bottle embryo mold。
Pe Blow Mold.
Feed powdered or granular plastic from the hopper of the injection machine into the heated cylinder; After heating, melting and plasticizing, with the help of the thrust of the plunger or screw, the material will be compressed and moved forward, and injected quickly into the closed mold cavity at a lower temperature through the nozzle at the front end of the material barrel; After a certain period of cooling and shaping, the product is obtained by opening the mold.
Injection Blow Molding Machine.
Advantages of bottle embryo molds
The bottle embryo largely determines the quality of plastic bottles, and the importance of plastic bottles is self-evident. The main functions of injection molding machines include: being able to install molds of a given size, providing sufficient clamping force, operating according to cycle time requirements, and plasticizing sufficient materials.
Several aspects to pay attention to when selecting bottle embryo molds
1. Product weight: The requirements for Hot runner are different for products with different weights.
2. Cycle time: A fast production cycle means high requirements for nozzles.
3. Gate: In order to maintain a good Thermal equilibrium in each molding cycle, its hot flow tip must have the function of melting materials and cooling sealing.
4. Nozzle: nozzles can be distinguished according to size, temperature distribution, physical characteristics, materials used, maintenance difficulty, price, etc.
5. Runner: The use of the Hot runner system not only saves raw materials, but also eliminates the process of removing the handle by manual, mechanical or other means.
6. Product design: In order to ensure a smooth product appearance at the end of molding, it is necessary to consider those factors in its structural design.
7. Temperature control: Each nozzle must be connected to a relatively complex temperature controller.
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