Plastic mold processing has the characteristics of high precision requirements, complex processing surface shapes, and multiple processing steps. In order to ensure that the subsequent goods can be mass-produced normally, what requirements must we meet in plastic mold processing? What are the requirements for factory selection? Let's talk about it below.
I. The characteristics of plastic mold processing are as follows:
(1) High precision requirements for plastic mold processing
A mold is generally composed of a die, a punch, and a mold frame. Some may also be multi-piece modules.
Therefore, the combination of the upper and lower molds, the combination of the insert and the cavity, and the splicing between modules all require high processing precision. The dimensional accuracy of precision molds often reaches the m level.
(2) Complex surface shapes of plastic mold processing
Some products, such as medical
injection molding parts, cosmetic packaging materials, toys, and household appliances, have surfaces composed of multiple curved surfaces. Therefore, the mold cavity surface is very complex. Some curved surfaces must be processed using mathematical calculation methods.
(3) There are many steps in the processing of plastic molds. Milling, boring, drilling, reaming and tapping are always used in mold processing. Mold saving and mold testing are also required later. Therefore, the professional requirements of personnel are high. (4) Repeated production. The use of molds has a lifespan. When the use of molds exceeds its lifespan, they must be replaced with new molds. Therefore, the production of molds is often repetitive. (5) Profiling. Sometimes there are no drawings or data in mold production, and the profiling must be carried out according to the actual object. This requires the plastic mold processing to have high precision and no deformation. (6) Excellent mold material and high hardness. The main material of the mold is mostly made of high-quality alloy steel, especially for molds with long service life. This type of steel has strict requirements from blank forging, processing to heat treatment. Therefore, the preparation of plastic mold processing technology cannot be ignored. Heat treatment deformation is also an issue that needs to be taken seriously during processing. Second, when selecting a factory for plastic mold processing, the processing requirements should be met as much as possible. Consider the equipment, personnel, scale, and other aspects. In addition, the CNC system should be powerful, the machine tool should be high-precision, rigid, thermally stable, and have a profiling function. Only when all these conditions are met can there be no worries.
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