Injection molding machine development direction and energy saving characteristics
With the increasing market demand for plastic products, the upgrading of injection molding machine equipment is also getting faster and faster. The early injection molding machines were all hydraulic. Due to the need of environmental protection and energy saving, as well as the mature application and price of servo motors, the demand for plastic products was increasing. faster and faster. The early injection molding machines were all hydraulic. Due to the need for environmental protection and energy saving, as well as the mature application and price drop of servo motors, more and more all-electric precision injection molding machines have been used in recent years. Only two different types of power are compared. The characteristics of the injection molding machine make it possible to clarify the technical development direction of the injection molding machine.
The all-hydraulic injection molding machine has many unique advantages in molding precision and complex shapes. It has evolved from the traditional single-cylinder liquid-filled and multi-cylinder liquid-filled type to the current two-plate direct pressure type, in which two plates are directly pressed. The most representative, but the control technology is difficult, the machining precision is high, and the hydraulic technology is difficult to master.
The all-electric injection molding machine has a series of advantages, especially in terms of environmental protection and energy saving. Due to the high precision of the injection control of the servo motor, the rotation speed is also stable, and it can be adjusted in multiple stages. However, all-electric injection molding machines are not as durable as full-hydraulic injection molding machines, while full-hydraulic injection molding machines must use servo valves with closed-loop control to ensure accuracy, and servo valves are expensive and costly.
The electric-hydraulic injection molding machine is a new injection molding machine integrating hydraulic and electric drive. It combines the high-performance and all-electric energy-saving advantages of the full-hydraulic injection molding machine. This electric-hydraulic combined injection molding machine Has become the development direction of injection molding machine technology. The injection molding industry is facing a rapid development opportunity. However, in the cost structure of injection molding products, electricity costs account for a considerable proportion. According to the requirements of the injection molding machine equipment process, the injection motor oil pump motor consumes a large proportion of the total equipment power consumption. 50%-65%, so it has great potential for energy saving. Designing and manufacturing a new generation of "energy-saving" injection molding machines has become an urgent need to pay attention to and solve problems.