Principles of Forming Machine
2023-08-19
The working principle of a molding machine is similar to that of a syringe used for injection. It uses the thrust of a screw (or plunger) to inject the melted plastic (i.e. viscous flow) that has already been plasticized into a closed mold cavity, and then solidifies to obtain the product.
Injection molding is a cyclic process, which mainly includes: quantitative feeding, melting and plasticizing, pressure injection, mold filling and cooling, and mold opening and picking up. After removing the plastic part, close the mold again and proceed to the next cycle.