Vertical injection molding machine energy-saving domestic development direction

Date：2015/9/21 11:30:09

Current domestic saving vertical injection molding machine in terms of quality, technical point of view there is still a very large room for improvement, especially high-energy type vertical injection molding machine market is still prevailing foreign products. "Energy-saving injection molding machine" can be said to be the world's presses business focus of the study, China has the ability to own research and development, energy-efficient economy is the development direction of the vertical injection molding machine. Vertical injection molding machine of the future development of energy-saving potential significance, and direction of development gradually clear, how the future development direction of energy-saving vertical injection molding machine, take a look.

Energy-efficient hybrid drive system

Most contemporary Chinese injection molding machine drive system using a frequency control or induction motor-driven hydraulic pump. Although the frequency control to a certain extent, the completion of energy-saving, but the response is slow, inadequate and poor low-speed characteristics can not be avoided, so the development has encountered a bottleneck.

But only for the motor-driven vertical injection molding machine, because the hydraulic system can not complete the energy from the source, nor is the development direction of the injection molding machine. With the rapid development of the servo motor with the price continues to decline, coupled with the high response servo motor, the output of a high percentage of the rated torque, sustained very low torque ripple. At very low speeds may also have large fixed torque, speed varies with the system flow demand, the reaction is faster than the servo valve 0.004S. Hydraulic system is basically without cooling water, for packing a long time and cooling products, saving up to 80%.

These advantages make the servo motor with the conditions to complete energy as possible in vertical injection molding machine. However, since the adoption of the servo motor more did not reduce costs, the price is relatively expensive hampered the development of all-electric injection molding machine. A set of servo motors with hydraulic pump in one. Integrated with full hydraulic advantages of all-electric drive system "electro-hydraulic hybrid drive system" has become the main direction of development of energy-saving injection molding machine powered systems.

Energy-saving hydraulic system

Because conventional hydraulic system piping layout with more unreasonable, will cause energy loss of the hydraulic system, converted into thermal energy temperature, affecting the work of the injection molding machine. Therefore, if the angle of the main hydraulic system to optimize the layout of the hydraulic system, select the appropriate hydraulic device to reduce losses and throttling losses with overflow pipe pressure loss. Adoption accumulators complete energy hydraulic system, reducing the temperature of the hydraulic oil, reduce noise.

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