Plastic injection molding machine It is a key manufacturing equipment, which is famous for its efficient production capacity and wide application. Understanding the principle and mechanical structure of plastic injection molding machine is very important for understanding its working process and advantages.
First, let's understand the principle of plastic injection molding machine. Plastic injection molding machine is based on the principle of melt injection, that is, heating and melting solid plastic materials, and then injecting them into the mold through pressure to finally form the required plastic products. The whole process can be divided into the following key steps: plastic feeding and melting, injection molding and cooling, mold opening and closing and product taking out.
In terms of mechanical structure, plastic injection molding machine usually consists of the following main parts:
1. Hopper: Hopper is a container used to store solid plastic particles or granular materials. It is located on the top of the injection molding machine and sends the plastic into the heating cylinder through the conveying system.
2、 Conveying System: The conveying system can be a screw or a piston, which is used to transfer plastic particles from the hopper to the heating cylinder. The conveying system is usually driven by a motor to ensure a uniform supply of plastic.
3. Heating Cylinder: The heating cylinder is a long and hollow tubular structure used to heat and melt plastic particles. Heating elements, such as heating belt or electric heater, are arranged inside the heating cylinder to provide the required heating temperature.
4. Nozzles: Nozzles are components connecting the heating cylinder and the mold. In the nozzle, the molten plastic undergoes pressure and spiral movement to further improve the uniformity and fluidity of the plastic.
5. Mold: Mold is a key part for plastic injection molding. It is usually composed of two and a half molds, which can be designed and customized according to the shape and size of the required products. The mold contains a cavity for receiving the injected molten plastic and forming the desired product shape.
6. Hydraulic System: the hydraulic system is used to provide the pressure and power required by the injection molding machine. It includes a hydraulic pump, a hydraulic cylinder, a control valve and other components to control the pressure and movement during the injection molding process.
7. Control System: The control system is used to monitor and control various parameters of the injection molding machine, such as temperature, pressure and injection speed. It can be based on the traditional electrical control system, or it can be a more advanced computer numerical control system.
Lian Sheng Injection molding machine manufacturer To sum up the above principles and mechanical structure, the plastic injection molding machine can achieve efficient production of plastic products. Its flexibility and customizability make it suitable for various industries, such as automobile, electronics, medical and consumer goods manufacturing. With the advancement of science and technology and the promotion of innovation, the design and performance of plastic injection molding machines will continue to improve, bringing more opportunities and development to the manufacturing industry.
