In recent years, the development of the drying machinery industry in China has become more and more rapid. As an important component, the valve industry also has tremendous room for growth. It is through transformation and upgrading to obtain greater development. However, like the entire drying machinery industry, the rapid development of the valve industry gradually exposed many problems and faced serious challenges. It can be said that opportunities and challenges coexist, and achievements are in line with hidden dangers. Therefore, we actively promote the industrial transformation and upgrading and realize Breakthrough in quality and efficiency has become the only way for the valve industry. At present, China's valve industry is undergoing transformation and upgrading, adjusting product structure, independent innovation, and developing new products with intellectual property rights to adapt to changes in the market, all show supernatural powers, seek breakthroughs, and develop a successful development path. Innovating the advantages in the changing market has made some achievements. Not only won the market recognition, but also got rid of the quagmire of "price war" vicious competition. Even in the context of the external economic downturn, companies have maintained a good momentum of steady growth. At present, various valve manufacturers have emerged as if they have mushroomed in the market, injecting boundless vitality into China's manufacturing industry. Its contribution to the national economy is obvious to all. However, if you really want to establish a foothold in the market, valve manufacturers need to deeply analyze the problems and deficiencies in the products and actively find solutions. Extrustion Blow Molding Machine Blow moulding machines can be divided into three categories: extrusion blow moulding machines, injection blow moulding machines and special structure blow moulding machines. Stretch blow molding machines can be classified into each of the above categories. Extrusion Blow Molding Machine is the combination of extruder, blow molding machine and die closing mechanism, which is composed of extruder and blank die head, blow expansion device, die closing mechanism, blank thickness control system and transmission mechanism. The blank die is one of the important components that determine the quality of blow molding products, usually including the side feed die and the center feed die. The storage cylinder type blank die head is often used for large products during blow molding. The minimum volume of the storage tank is 1kg and the maximum volume is 240kg. The parison thickness control device is used to control the parison wall thickness. The maximum control point is 128 points, generally 20~30 points. The extrusion blow molding machine can produce hollow products with a volume range of 2.5ml~104l. Extrustion Blow Molding Machine,Pe Extrustion Blow Molding Machine,Pet Stretch Blow Moulding Machine,Injection Stretch Blow Molding Machine Ningbo Chenwei Machinery Technology Co.,Ltd , https://www.chenweimachine.com
Injection blow molding machine is the combination of Injection Molding Machine and blow molding mechanism, including plasticizing mechanism, hydraulic system, control electrical apparatus and other mechanical components. Common types include three-station injection blow molding machine and four-station injection blow molding machine. The three-station machine has three stations for preforming, blowing and demoulding, each of which is separated by 120 °. The four-station machine has more pre-forming stations, each of which is separated by 90 °. In addition, there is a dual-station injection blow molding machine with 180 ° between stations. The plastic containers produced by the injection blow molding machine are accurate in size and do not need secondary processing, but the mold cost is high.
The special structure blow molding machine is a blow molding machine that uses sheet, molten material and cold blank as parison to blow mold hollow body with special shape and purpose. Due to the different shapes and requirements of the products produced, the structure of the blow molding machine is also different.