Author: mgg-Plastic bottle manufacturer
China has five thousand years, four major inventions, our Chinese heritage is huge, and the development of the industry is bigger, and now, the future. Today, beautiful fruit small V. Today, a detailed interpretation of blow molding products will have the following development trends with the market's demand for their blow molds, materials, machinery, auxiliary equipment, control systems, software. (1) The raw materials are required to meet the function, performance (medicine, food packaging) of blow molding, and the raw materials of the blow molding bottle will be more abundant, and the processing performance is better.
Such as PEN material, not only high strength, good heat resistance, strong gas barrier, transparent, resistant to ultraviolet irradiation, can be applied to blow various plastic bottles, and the fill temperature is high, the carbon dioxide gas, the oxygen barrier performance is excellent. And chemical drugs. (2) Blowing bottle packaging container, industrial products will have a large increase, and injection molding, multi-layer blow molding will have a rapid development. (3) Precision and efficiency of blow molding machine and equipment blow molding; automation of auxiliary production (operation) equipment.
"Precision and efficiency" Not only refers to the mechanical equipment has a high speed and high pressure during the production process, but also requires the products produced to achieve higher stability in appearance size fluctuations and heavy fluctuations, that is It is said that the extension of the size of the various parts of the production of blow molded products is high, deformation and shrinkage, and the appearance of the blow molding and the inner quality and production efficiency are high. The auxiliary operation includes flying, cutting, weighing, drilling, leak detection, etc., the process automation is one of the trends of development. (4) Research on blow molding of blow molding bottle, the reasonable construction of the mathematical model of blow molding, the rapid and accuracy of numerical algorithm, and the blow molding simulation will play in product quality prediction and control. More and more important roles.
The molding parameters of each stage are analyzed from the process of blow molding articles. The blow molding process can be divided into four stages: (1) the delivery, melting, kneading, and pumping of the polymer in the extruder, forming a stage; at this stage, affecting the wall The main process parameters of thick distribution are there. 1 The molecular weight distribution of the material, the average molecular weight.
2 Temperature control system and screw speed of the blow molding machine, wherein the temperature control system comprises a hopper temperature, a barrel 1 region, a zone, a 3 region, a temperature, a flange temperature, and a storage die. The (2) The type blank is extruded in the gap between the lips and the core. At this time, the type blank is rotten out and the two phenomena affects the mold type.
The main process parameters affecting the wall thickness distribution are the die diameter and wall thickness control system of the blow molding machine, in which the control system includes an axial wall thickness control system and a circumferential wall thickness control system to adjust the gap of the mold lip and the core. (3) The parked stage is to avoid contact, adhesion, and improve the uniformity of the wall thickness of the blow molded article in the surface of the parison. In the pre-blow stage of the parison, the billet is jetted under the parison, which is reduced to the protective parison.
At this stage, the main process parameters affecting the wall thickness distribution are: pre-blowing pressure, pre-blowing time. (4) High-pressure inflational blank of the type blank high pressure, so that the mold cavity is tightened, and the product plastic molding stage is realized. This stage affects the molding of the product is deformed by high pressure inflation, and the parison is deformable with the cavity contact.
The main process parameters affecting the wall thickness distribution are: shrinkage of materials; blowing pressure, time; mold material, structure, mold exhaust system, and mold cooling system, such as cooling water distribution, cooling water refueling temperature, etc. Guangdong blow molding plant, find beautiful fruit plastic, beautiful fruit plastic 14 years focus on blow molding toys, custom production of blow molding containers, please pay attention to beauty fruit blow molding bottle manufacturers www.hzkepend.com, fast channel, you can contact phone WeChat 13922288294 , 0752-3737979 or consult online customers, the company is dedicated to serve you.