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How to choose oil-electric hybrid injection molding machine

Oct 07, 2019

The stability, reliability, safety and service life of the machine work at the point of purchase of the hybrid electric injection molding machine. The stability of the machine is mostly manifested in whether the clamping mechanism and the injection molding system are running smoothly in each cycle, and working under the silent without impact, the noise should not exceed the industry standard. These conditions are related to the mechanical manufacturing and assembly precision, and also to the rational design and structure of the toggle link. Reliability and service life are mainly reflected in the system rigidity of the clamping mechanism, and are related to the structure, size, material and heat treatment process of the formwork, tie rod, connecting rod and its pin; plastic warping system of injection molding machine such as barrel , screw, screw head, check ring and the structure of the drive spindle of the screw and its manufacturing process, these parts are the main force-bearing parts and wear parts of the injection molding machine, which directly affect the service life.

The safety of the injection molding machine is very important. When the clamping mechanism opens and closes the mold, the reliability of the low-voltage protection system involves man-machine safety. Modern injection molding machines require the implementation of electrical, mechanical and hydraulic joint safety protection systems. This protection mainly reflects two aspects: one is the safety protection of the mold, and the other is the safety protection of the human body. Before closing the mold, when the safety door is not closed, the closed mold should not be able to move; during the mold closing process, if the safety door is not closed to the correct position, the template action stops or the mold is automatically opened. If the foreign object, such as an insert, is accidentally dropped into the cavity due to vibration or the like, or other foreign matter such as a hand is inserted, the mold should stop the mold closing action, or automatically open the mold and alarm. .


Another safety link of the injection molding machine is to prevent the cold start of the pre-plastic screw. When the material of the screw does not reach the specified temperature and the holding time, it is forbidden to start, otherwise an alarm will occur. A guard against nozzle spattering of the injection molding machine is required to prevent burns.


The automation of purchasing injection molding machines is high, the functions must be complete and complete, and the production efficiency is high. Modern injection molding machines can be operated manually, semi-automatically and fully automatically. As long as the mold design is reasonable, it can realize the fully automatic operation from injection filling to the ejection of the product. It can also be equipped with a robot to realize unmanned operation. The extraction ferrule function, hydraulic nozzle control function and fast heating flow path probe function can be programmed into the automatic program in the injection molding cycle for automatic cycle. The high production efficiency is mainly manifested in the fact that each molding product has a short molding cycle under normal injection molding process conditions. This is a comprehensive performance index reflecting the mechanical, electrical and hydraulic systems of an injection molding machine. Therefore, high-quality hydraulic and electronic components must be used, and precise manufacturing techniques can be used to improve the sensitivity and repeatability of the injection molding machine system. It is the reliable guarantee that the injection molding system works efficiently.


The energy saving and environmental protection of the main points of the injection molding machine are the non-negligible indicators for judging the modern injection molding machine. Energy saving mainly reflects the water saving and power saving capabilities of the injection molding machine compared with similar machines under the heating system (electromagnetic heating), power drive system (inverter, servo, etc.) and heat dissipation system. The design of modern injection molding machines should fully consider the theme of “environmental protection”. The injection molding machine should prevent hydraulic oil leakage or excessive noise, and work quietly. In addition, the injection molding machine itself should also use more environmentally friendly materials.


It is convenient to maintain and repair the machine for the main points of the injection molding machine. The installation position of various machines such as machinery, hydraulics, electronics and electrical components should be beneficial to the maintenance and overhaul of the machine. At the same time, the generalization and standardization degree of the injection molding machine are also very important to the users.