What are the characteristics and operating steps of the blow molding machine


Bottle blowing machine refers to a machine that blows b […]

Bottle blowing machine refers to a machine that blows bottles. The most simple explanation is a machine that can blow plastic particles (softened into liquid) or preforms into bottles through certain technological means. The bottle blowing machine is convenient and quick, and has a large amount of molding. After it appeared, it replaced most of the manual bottle blowing and was adopted by most beverage companies.
Most blow molding machines are still two-step blow molding machines, that is, plastic raw materials must be made into preforms before blowing. Nowadays, the environmentally friendly plastic made of PET is generally used. Blow molding machine: After the liquid plastic is sprayed out, the wind blown by the machine is used to blow the plastic body into a certain shape of the mold cavity to make a product. This kind of machine is called a blow molding machine. It is also a kind of blow molding machine, namely hydraulic blow molding machine.
The tubular plastic parison obtained by extrusion or injection molding of the thermoplastic resin is placed in a split mold while it is hot (or heated to a softened state). After the mold is closed, compressed air is injected into the parison to blow the plastic parison It expands and clings to the inner wall of the mold, and after cooling and demolding, various hollow products are obtained.
Plastic hollow containers are widely used in beverage, medicine, cosmetics, food and chemical industries due to their light weight, low price, and high safety. They attract more manufacturers to choose plastic containers instead of glass containers. Today, the most advanced equipment, molds and raw materials in the plastics industry are all presented in front of us. New technologies and new applications are emerging one after another. Looking at the field of plastic hollow molding is also fruitful. With the soaring world oil prices, the price of plastic raw materials is also high, and the development of alternative products with low energy consumption and low raw materials is also one of the market trends.
Operation steps
Step 1. Place the preform in the preform container and automatically enter the preform positioning device through the conveying device.
Step 2. Automatically load the preform with the preform mouth upwards onto the preform holder, and then send it into the drying tunnel.
Step 3. After heating, the preform is sent to the blowing platform, then the mold is locked, followed by low-pressure blowing, high-pressure blowing, exhaust, and finally mold opening.
Step 4. The finished bottle is taken off the bottle blowing platform by the automatic demoulding system.

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