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blow molding machine is a kind of equipment that makes plastic into hollow containers by blow molding. At present, the more common models include hollow extrusion blow molding machine, injection stretch blow molding machine, multi-layer hollow extrusion blow molding and stretch blow molding. At present, most of the 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 to 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, and compressed air is injected into the parison immediately after the mold is closed to inflate the plastic parison and adhere to the inner wall of the mold. After cooling and demoulding, various hollow products can be obtained. Enoch Ferngren and William Kopitke were the first to verify the blow molding process. The principle of this process is derived from glass blowing. In 1938, Ferngren and Kopitke built a blow molding machine and sold it to the Hartford Empire Company. This is the beginning of the commercial blow molding process. In the 1840s, the variety and quantity of plastic products were very limited. Therefore, the blow molding process did not develop rapidly until very late. With the increase in product types and productivity, soon more and more plastic products are made by the blow molding process. In the US soft drink industry, the number of plastic containers has grown from zero in 1977 to 10 billion in 1999. The blow molding process was used to produce low-density polyethylene vials during the Second World War. 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 the hollow container can reach thousands of liters, and some production has adopted computer control. Plastics suitable for blow molding include polyethylene, polyvinyl chloride, polypropylene, polyester, etc. The resulting hollow containers are widely used as industrial packaging containers. According to the manufacturing method of the parison, blow molding can be divided into extrusion blow molding and injection blow molding, and the newly developed multi-layer blow molding and stretch blow molding. The extrusion process is to extrude the plasticized plastic into the extrusion blow die head through a screw, and then cooperate with the mold below and compressed gas to realize the molding of the product. The extrusion blow molding process consists of 5 steps: 1. The plasticized raw materials are made into plastic preforms; 2. Part of the preforms are intercepted by closing the mold and cut off the preforms; 3. The mold cavity is filled with gas to make the shape The embryo is formed and cooled; 4. Open the mold and take out the formed container; 5. Trim the flash to obtain the finished product. Jinyi Machinery specializes in the production of a series of blow molding machine equipment manufacturers. Due to its excellent technology, the blow molding machine produced is widely used in the fields of food packaging, cosmetic bottles and confectionery food packaging.
The global market was valued at pet bottle machine price in yosion bottle blowing machine and is expected to reach a market value of pet bottle making machine manufacturers by blowing machine maker, with a CAGR of
plastic bottle machine during the forecast period.
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