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Principle and application of lunch box injection molding machine

TIME:2021-04-20 Share

The working principle of the lunch box injection molding machine is similar to that of a syringe for injection. It is a process of injecting plastic into a closed cavity in a molten state (that is, a viscous flow state) with the help of the thrust of the screw (or plunger).

Injection molding is a cyclic process. Each cycle mainly includes quantitative feeding, melt plasticity, pressure injection, mold filling and cooling, and mold opening. Take out the plastic part, and then close the mold for the next cycle.

Lunch box injection molding machine operation items: The injection molding machine operation items include control keyboard operation, electronic control system operation and hydraulic system operation. The injection process action, feed action, injection pressure, injection speed, injection type, and each cylinder are respectively carried out. Section temperature monitoring, injection pressure and back pressure adjustment.

lunch box injection molding machine
The lunch box injection molding machine can mold plastic products with complex shapes, precise dimensions or dense texture at one time. It is widely used in national defense, electromechanical, automobile, transportation, building materials, packaging, agriculture, culture, education, health and other fields, as well as in various fields of people's life. With the rapid development of the plastics industry, the lunch box injection molding machine plays an important role in quantity and variety. Its total output accounts for 20% ≤ 30% of the entire plastic molding equipment, making it one of the fastest growing and most productive equipment in plastic machinery. One.

Traditional plastic machinery also has certain potential in terms of energy saving, because the previous design often only paid attention to the production capacity of one machine. In the design of energy-saving plastic machinery, production speed is no longer an important indicator, but the energy consumption per unit weight of the product. Therefore, the mechanical structure, control method and operating process conditions of the equipment must be optimized on the basis of a small energy consumption.

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