In the food, cosmetics, medicine and other industries, the demand for plastic
blow molding machines is increasing year by year. In the late 1950s, with the birth of high-density polyethylene and the development of blow molding machines, blow molding technology has been widely used. The volume of hollow containers can reach thousands of liters, and some production has adopted computer control. Plastics suitable for blow molding include polyethylene, polyvinyl chloride, polypropylene, polyester, etc., and the obtained hollow containers are widely used as industrial packaging containers. After long-term development, the plastic bottle industry has gradually formed a number of industrial clusters in the north and the south, and professional bottle
blowing machine production bases have gradually formed around these industrial clusters. At present, several important bottle blowing machine production bases have been formed in China, including Taizhou Huangyan, Guangdong Foshan, Jiangsu Lianyungang and Hebei Cangzhou. As an indispensable equipment for bottle blowing, the bottle blowing mold has not formed a balanced development, and it is still mainly concentrated in Huangyan, Taizhou. Many domestic plastic bottle manufacturers also need to buy blow molds from Huangyan. In this way, plastic bottle manufacturers, especially those in the northeast and northwest regions, need to run a long distance when purchasing. At present, most of the blow molding machines are still two-step blow molding machines, that is, the plastic raw materials must be made into preforms and then blown. Nowadays, environmentally friendly plastics made of PET are commonly used. Blow molding machine: After the liquid plastic is sprayed out, the wind blowing from the machine is used to blow the plastic body to a certain shape of the mold cavity to make a product. This machine is called a blow molding machine. It is also a type of blow molding machine, that is, a hydraulic blow molding machine. The reason why the bottle blowing machine has developed rapidly and has been adopted by many industries is mainly due to its distinctive characteristics. First, the bottle blowing machine adopts the oil-free airbag clamping technology, which has a large clamping force, and has less force in the toggle operation and long life. Secondly, the patented fly-out sealing technology makes it easier to seal, especially for jars. In addition, using KEYENCE's PLC and touch screen, the operation is easier and the reliability is high. However, with the wide range of applications, the requirements are also increasing. At present, the pharmaceutical industry has two urgent needs for bottle blowing equipment. One is that due to the continuous rise in the price of plastic raw materials, companies are always thinking about how to reduce packaging costs to maximize profits, so they need to use advanced blowing equipment to produce lighter bottles; Manufacturers must respond flexibly to the ever-shorter life cycles of medicines. These two urgent needs have created a big problem for bottle blowing equipment suppliers. As for the blow molding machine industry, with the development of the domestic plastic bottle market, it has developed rapidly in recent years, and some small domestic enterprises engaged in the production of blow molding machines have also grown in this process. From the small workshops in the early stage of reform and opening up, the gap between the international giant blow molding machine enterprises has gradually shortened, and the manufacturing technology of blow molding machines of some enterprises has reached the international leading level.
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