With the rapid development of the plastic industry today, injection molding machine occupies an important position both in quantity and variety. Injection molding machine has the function of forming plastic products with complex appearance, accurate size or dense texture with metal inserts. It is widely used in national defense, mechanical and electrical, automobile, transportation, building materials, packaging, agriculture, culture, education and health and People’s Daily life in various fields. The market is full of various models, different uses of injection molding machine, and how to buy a satisfactory injection molding machine, and what matters to pay attention to when buying injection molding machine, for users has been a very troubled problem.
The selection of injection molding machine can be judged by longitudinal or horizontal comparison. The so-called “longitudinal” is that the main technical parameters of the injection molding machine should meet the industry standards, according to the industry standards. The so-called “horizontal” is based on the technical parameters of similar injection molding machines at home and abroad. So this is a very careful scientific piece of work. According to the material, shape, structure and application of injection products and specific occasions, according to the mold structure, quality, precision, number of cavity, flow channel type and structure, shape, size, according to the product day, month, year production capacity automation degree to choose injection molding machine parameters at all levels.
Stability, reliability, safety and service life of the machine.
The stability of the machine is mainly reflected in the mold closing mechanism and injection molding system in each cycle, whether the smooth operation, in the silent without impact, noise shall not exceed the industry standard. These conditions are related to the mechanical manufacturing, assembly accuracy, but also to the reasonable design and structure of the bending elbow connecting rod.
The reliability and service life are mainly reflected in the system rigidity of the die closing mechanism, and are related to the structure, size of the template, tie rod, connecting rod and its pin shaft, as well as the material and its heat treatment process. Injection molding machine injection system such as cylinder, screw, screw head, check ring and screw drive spindle structure and manufacturing process, these parts are the main stress parts and wear parts of the injection molding machine, directly affect the service life.
Safety of injection molding machine.
The reliability of low-voltage protection system is related to man-machine safety when the die closing mechanism is opening and closing the die. Injection molding machine requirements must be implemented electrical, mechanical, hydraulic joint safety protection system, this protection mainly reflects two aspects: one is the mold safety protection, the other is the personal safety protection. Before closing the mold, when the safety door is not closed, the closing mold should not be able to move; During the closing process, if the safety door is not closed to the correct position, the template action stops or the mold is opened automatically. If, when closing the mold, foreign bodies such as inserts fall into the cavity by mistake due to vibration and other reasons, or there are other foreign bodies embedded in the mold, the mold should stop the closing action, or automatically open the mold and alarm.
Modern injection molding machine can realize manual, semi-automatic, fully automatic operation, as long as the mold design is reasonable, it can realize the automatic operation from injection mold filling to product ejection and fall, can also be equipped with manipulator to realize unmanned operation. The core pulling function, the hydraulic nozzle control function and the rapid heating channel probe function can be programmed into the automatic program in the injection molding cycle for automatic circulation.
High production efficiency is mainly manifested in that each mold product in the normal injection process conditions, the molding cycle to be short. This is to reflect an injection molding machine mechanical, electrical, hydraulic system comprehensive performance index, therefore, must use high-quality hydraulic, electronic components, the use of precision manufacturing technology in order to improve the injection molding machine system sensitivity and repeated accuracy, this is the injection molding system efficient work of reliable guarantee.
The machine you choose has a huge impact on productivity and everything. Therefore, we should strictly screen the points mentioned above to help us better buy injection molding machine.
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