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How Do Blow Molding Machine Work?
Raw Material Preparation:
Usually, PET is used as raw material for preform manufacturing.
Injection Molding:
Raw materials are fed into the injection molding machine. Here, the raw material is heated, melted, and pushed through a screw into the mold to form the initial shape of a preform.
Thermoforming of Preforms:
The preforms enter the thermoforming area of the bottle blowing machine. Here, the preform is heated again to make it soft and moldable.
Mold Assembly and Pre-blowing:
The thermoformed bottle preform is placed in the mold of the bottle blowing machine. After the mold is assembled, a certain amount of compressed air is injected into the bottle preform to expand and partially fill the mold. This process is called For “pre-blowing”.
Blow Blowing:
Subsequently, more high-pressure air is injected into the mold, causing the preform to completely fill the mold and become the desired bottle shape.
Cooling and Solidification:
When the preform becomes the desired shape, the cooling system is started to quickly cool and solidify through cooling air or water circulation.
Mold Separation and Bottle Removal:
Once the plastic is completely cooled and solidified, the mold separates and the finished plastic bottles are removed from the mold and sent to the next processing steps such as labeling, packaging and sorting.
The bottle blowing machine can automatically perform the above operations, and different molds can be replaced according to the required bottle size and shape. This makes it possible to produce plastic bottles of various sizes and shapes.
When we uncover the inner workings of a bottle blowing machine, we discover a world of precision and expertise. At Maiwei Machine, we have continuously improved the quality of our machines over the years, making us a leader in the plastic bottle products industry. “Honesty and trustworthiness, sincere service” is our guideline, “continuous innovation and forge ahead” is our philosophy, and we continue to strengthen ourselves while serving customers. Currently, we are committed to technological innovation, providing customers with high-quality products and services, meeting customer needs, and actively participating in market trends and changes, and have provided services to more than 40 countries/regions.
