Jinan mold injection molding used by the mold called injection mold, referred to as injection mold. Jinan injection mold can be used to form plastic products or embedded parts with complex shape and high dimensional accuracy at one time.
"Seven minute mold, three minute technology." For injection molding, mold and injection molding machine have a great impact on the quality of injection products, and it can even be said that mold plays a greater role than injection molding machine; if mold is not fully recognized in the injection process, it is difficult to get good injection products.
Two. Injection mold structure
The structure of injection mold is determined by the type of injection molding machine and the structural characteristics of plastic parts. The moving die is installed on the moving plate of the injection molding machine, and the fixed die is installed on the fixed plate of the injection molding machine. In the process of injection molding, a gating system and a mold cavity are formed after the moving mold and the fixed mold are closed. When the mold is separated, the plastic part or plastic part is placed on the side of the moving mold, and then the plastic part is pushed out through the demoulding mechanism set in the moving mold. According to the function of each part in the mold, a set of injection mold can be divided into the following parts:
1. Formed parts
The parts with the shape, structure and size of the forming material are usually composed of the core (punch), concave cavity, screw core, insert, etc.
2. Pouring system
It is a channel leading molten plastic from the injector nozzle to the closed cavity. It is usually composed of main flow channel, diversion channel, gate and cold well.
In order to ensure the accurate alignment of mold moving and fixed mold closing, the guide part is set to guide the positioning. It is composed of guide post and guide sleeve. Some guide parts are also set on the ejector plate of the mold to ensure the smooth demoulding and reliable movement mechanism.
4. Demoulding mechanism
There are many structural forms of plastic parts and pouring system for demoulding equipment, the most commonly used ones are thimble, thimble tube, roof and pneumatic spraying and other spraying mechanisms, usually including ejector rod, reset rod, slingshot, thimble fixing plate, roof (upper ring) and roof guide post guide sleeve.
5. Mold temperature control system
In order to meet the requirements of mold temperature in the process of injection molding, a heating rod of mold temperature regulating system is needed to adjust the mold temperature.
6. Exhaust system
In order to discharge the gas in the cavity smoothly, an exhaust slot is often arranged at the mould parting surface and the assembly place of the insert.
8. Other structural parts
It refers to the components (such as fixed plate, movable / fixed plate, support column, support plate, connecting screw, etc.) set to meet the structural requirements of the mold.
The above is a detailed introduction to the experience requirements of Jinan mold injection molding. For more information, please click http://www.jnhjgs.cn