What are the content requirements of injection mold design standards?

What are the content requirements of injection mold design standards?

The content requirements of injection mold design standards mainly include the following 7 aspects:

(1) Mold structure form and material selection: according to the structure and size requirements of plastic products, choose the appropriate mold structure form, such as single parting surface, double parting surface, side parting and core withdrawal. At the same time, according to the use conditions of the mold, the nature of the plastic material and the molding process requirements, choose the appropriate mold materials, such as steel, aluminum alloy and so on.

(2) Mold size and accuracy requirements: according to the size and accuracy requirements of plastic products, determine the size and accuracy of the mold. The size of the mold should take into account the processing capacity of the injection molding machine and the shrinkage rate of the plastic parts, and the accuracy requirements of the mold include parallelism, perpendicularity, and the matching gap.

(3) Parting surface design: Parting surface is an important part of the mold, which determines the way to remove plastic parts. When designing the parting surface, factors such as the shape, size, accuracy and use requirements of plastic parts should be taken into account, and problems such as trapped gas and overflow should be avoided.

(4) Molded parts design: molded parts are the core part of the mold, which determines the shape and size of the plastic parts. When designing molded parts, factors such as the nature of plastic materials, injection molding process conditions, precision and use requirements of plastic parts should be taken into account, and problems such as pores, shrinkage holes and deformation should be avoided.

(5) Gating system design: The gating system is a key part of the mold, which determines the flow mode and filling degree of the plastic in the mold. When designing the pouring system, factors such as the nature of the plastic material, the injection molding process conditions, the shape and size of the plastic parts should be taken into account, and problems such as short injection, injection, and poor exhaust should be avoided.

(6) Cooling system design: The cooling system is an important part of the mold, which determines the temperature control mode of the mold. When designing the cooling system, the structural form of the mold, the material properties, the injection molding process conditions and other factors should be taken into account, and the problems such as uneven cooling and too long cooling time should be avoided.

(7) Ejector system design: ejector system is used to ejector plastic from the mold. When designing the ejection system, factors such as the shape, size and use requirements of the plastic parts should be taken into account, and problems such as poor ejection and damage to the plastic parts should be avoided.

In short, the content requirements of injection mold design standards are very strict and complex, requiring designers to have rich professional knowledge and experience.