The demand of injection molding machine in China is increasing
The demand of injection molding machine in China is increasing
With the increasing demand of the diversified market of plastic products, the upgrading of injection molding machine equipment is getting faster and faster. Early injection molding machine is fully hydraulic, due to the need of environmental protection and energy saving, and mature application of servo motor and a sharp fall in prices, the whole dynamic precision injection molding machine in recent years more and more, only to compare the characteristics of two kinds of different power supply injection molding machine, is likely to find out technological development trend of injection molding machine.
After China joined the world trade organization (WTO), foreign machinery manufacturing of accelerating the transformation of China, some of the world famous enterprises of injection molding machine, such as Germany's mark, krupp, baden phil, Japan's sumitomo heavy industries such as the company has "in China, some still further set up a technology center. The entry of foreign injection molding machine manufacturers brings vitality to the Chinese injection molding machine industry, and it also brings opportunities and challenges to Chinese injection molding machine manufacturers.
Early injection molding machine is fully hydraulic, due to the need of environmental protection and energy saving, and mature application of servo motor and the price dropped substantially, with plastic products diversified market demand is more and more big, the injection molding machine equipment upgrading is faster and faster. Early injection molding machine is fully hydraulic, due to the need of environmental protection and energy saving, and mature application of servo motor and a sharp fall in prices, the whole dynamic precision injection molding machine more and more in recent years, electric - hydraulic injection molding machine is a new type of injection molding machine integrating hydraulic and electric, it combines the hydraulic type high performance and energy-saving advantages of fully electric injection molding machine, the combination of electric and hydraulic compound injection molding machine has become an injection molding machine technology development direction.
Injection molding machine enterprises in China are mainly distributed in the southeast coast, the pearl river delta, ningbo region development momentum of the injection molding machine has become China's largest production base, annual production of domestic injection molding machine more than 1/2 years production, about a third of the world's injection molding machine. Injection molding machine in China while developing rapidly, the production or more varieties, and basically can supply the domestic plastic raw material processing and the general technical equipment required for the plastic products processing, molding, individual products also entered the world, but with the industry compared to developed countries such as Germany, Japan, Italy, China, we still have some gap in injection molding machine, mainly in small variety, high energy consumption, low control level, the performance is not stable, etc.
With the increasing demand of the diversified market of plastic products, the upgrading of injection molding machine equipment is getting faster and faster. Early injection molding machine is fully hydraulic, due to the need of environmental protection and energy saving, and mature application of servo motor and the price dropped substantially, with plastic products diversified market demand is more and more big, the injection molding machine equipment upgrading is faster and faster. Early injection molding machine is fully hydraulic, due to the need of environmental protection and energy saving, and mature application of servo motor and a sharp fall in prices, the whole dynamic precision injection molding machine in recent years more and more, only to compare the characteristics of two kinds of different power supply injection molding machine, is likely to find out technological development trend of injection molding machine.
Countries around the world in environmental protection, such as energy consumption, noise and leakage control increasingly stringent requirements, energy saving has been completed for injection mechanical and electrical hydraulic system research emphasis, for valve controlled electrohydraulic system has great energy loss, Germany, Japan and other countries to develop the application of variable pump and electro-hydraulic proportional valve combination of load sensing type injection mechanical and electrical hydraulic control system. In order to further reduce energy consumption, reduce noise, the latest generation of injection molding machine is made of speed adjustable motor driven hydraulic pump as power source, the pressure maintaining and cooling and idling conditions remain very low speed, in order to achieve the purpose of energy saving, noise reduction.
Using synchronous signal injection molding machine and electrical control system, according to the requirements of the injection molding process, the electro-hydraulic proportional control system, simulation load tracking control system, makes the speed of oil pump motor and injection molding machine for hydraulic flow and pressure is directly proportional to the product, the traditional quantitative pump converted into frequency conversion variable pump, so that the overflow valve of the oil return to minimize traffic, no high pressure throttling energy loss, which will have high pressure throttling "energy" traditional injection molding machine to upgrade to high pressure throttling "energy-saving" injection molding machine, energy-saving injection molding machine in addition to energy conservation function of main characteristics, on the basis of the energy saving principle, but also has the advantages of additional series.
