Key points of screw post design in injection molding parts processing

In the process of injection molding parts processing, the design of the screw column is a key point. It directly affects the assembly effect and service life of the product. The following are a few key points to note in the design of the screw column.

1. When designing, it is necessary to give full consideration to the force conditions, including the tensile force, pressure and shear force, etc. These factors will affect the screw post. These factors will affect the dimensions of the screw post, such as diameter and length, as well as the parameters of the thread.

2. Pay attention to material selection. According to different use environments and requirements, choose the appropriate material. For example, if it is used in a high-temperature environment, you need to choose a high-temperature-resistant material; if it is in a corrosive environment, you need to choose a corrosion-resistant material. At the same time, it is also necessary to consider the strength and hardness of the material to ensure that it will not be deformed or damaged when subjected to external forces.

3. Thread design. The thread is the core part of the screw post, and its shape, size and pitch will affect the stability and reliability of the connection. Generally speaking, the commonly used threads are metric and inch, of which metric threads are more common. In addition, it is also necessary to consider the direction of the thread, which is usually designed as right-handed, as this is more in line with people's habits.

4. Consider the position and number of screw posts. The location of the choice needs to take into account the structure of the product and the force situation, in order to facilitate the assembly and maintenance; the number of choices need to take into account the stability and reliability of the product, in general, the more the number, the better the stability.

5. Manufacturing process of screw posts. Because the shape of the screw column is relatively complex, it is usually processed by CNC equipment to ensure its accuracy. At the same time, surface treatment, such as chrome plating, galvanizing or plastic coating, is also required to improve its corrosion and wear resistance.

Although the design of screw columns seems simple, it actually involves a wide range of knowledge, which requires profound professional knowledge and a rigorous work attitude. Only in this way can we design excellent works to meet the needs.