The operating principle and characteristics of the bottle blowing machine
Principle Blow molding machine is mainly divided into three categories: extrusion blow molding machine, injection blow molding machine and special structure blow molding machine. The processing technology is mainly divided into one-step method and two-step method. One-step and two-step blow molding machine molding processes are mainly used for PET and BOPP hollow container molding. Both have their own characteristics and are widely used. In comparison, the two-step method is more suitable for concentrated production of preforms and dispersed blown bottles; while the one-step method is more suitable for online production of beverage companies. The blowing process of the bottle blowing machine mainly has 6 steps: 1) First, put the heated plastic embryo into the mold; 2) Use the clamping cylinder to tighten the mold; 3) Use high pressure or mechanical structure to make the embryo mold. Lock; 4) Medium and high pressure pre-blowing, while stretching the cylinder action to expand the mold; 5) High pressure blowing, the preform is shaped according to the mold, and the pressure is kept for a certain period of time; 6) The high pressure in the formed bottle is released, the cylinder Reset-take the bottle. Pneumatic equipment is used in many places during the operation of the bottle blowing machine; from discharging-locking-stretching-high pressure blowing \ deflation-taking out the bottle, this series of actions are assisted by pneumatic equipment. For example, the air circuit is divided into two parts, the normal pressure part and the high pressure part. The plastic hollow container has the characteristics of light weight, low price and high safety. It is widely used in beverages, medicine, cosmetics, food and chemical industry. The industry has attracted more manufacturers to choose plastic containers to replace glass containers in the past. 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 a market trend. Adopting oil-free airbag mold clamping technology, the clamping force is large, and the toggle operation is less forced and long life. ·Adopting the patented flying-out sealing technology, which makes the sealing easier, especially the jar sealing.
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