Dongguan UG plastic mold design training, mold ranking diagram examples to explain
UG plastic mold structure design standards
1. Parting surface In
order to remove the product from the mold, the mold must be divided into two parts on the male and female mold sides. This interface is called the parting surface. It has the function of parting and venting, but due to the difference of mold accuracy and molding, it is easy to produce burrs and knots, which will hinder the appearance and accuracy of the product. When selecting the parting surface, pay attention to:
1. Do not locate the obvious position and affect the appearance of the product
2. When opening the mold The product should be left on the side with the demoulding mechanism
3. It is located at a place where mold processing and post-processing are easy
4. For products with high coaxiality requirements, the cavity should be designed on the same side as much as possible.
5. Avoid long core pulling and consider it Put the core pulling mechanism on the side of the male mold as much as possible if it is placed in the opening direction of the male mold
. Generally, the arc part of the mold is not used, which will affect the appearance of the product.
7. For the plastic with good fluidity and easy overflow, it should be used Breaking method parting can prevent burrs.
8. For products with high height and low drafting angle, the middle parting cavity can be divided into two sides to facilitate the parting surface of a set of molds. There may be one or more parting surfaces in determining parting. The following factors should also be considered when making the surface:
1) Detailed research and analysis of the shape, size and wall thickness of the product to find the best direction to split the mold, commonly known as "molding"
2) Understand the performance and formability of the plastic and the layout of the gating system
3) Pay attention to exhaust Simplified mold structure and demolding, easy to operate and easy to process.
It has many forms: horizontal stepped surface and vertical curved surface
Second, the demoulding slope
is to make the product easy to be ejected from the mold. The demolding slope must be set on the mold depending on the shape of the main product. The surface precision and processing method of the plastic mold are different. Generally, it is 1-3 degrees. There is no exact value. The sum formula is mostly based on experience values without affecting the appearance and performance of the main product. The larger the draft, the better.
Dongguan Hengli Xiaosa Mould Technology Training College
UG plastic mold design training course introduction:
teach the use of calipers and other measuring tools, the projection rules and applications of three views, complement three views; plastic mold structure, performance and processing technology, draw mold diagrams, fixed mold embryos, mold cores, and Part drawing, 2D ranking, part drawing, line cutting drawing, material list, product drawing, drawing of copper drawing, explanation of mold follow and mold modification process. Explain the automatic and manual parting instructions and processing skills through examples to achieve flexible use of each instruction to remove the mold; practically explain each mold structure (row position, inclined top, front mold inclined spring, front mold inclined top, front mold inclined slider, sliding Block ejection pin, slider ejection slanting top, secondary slider, shrink mold and precautions), comprehensively and systematically introduce various methods of manual parting, common structure and special structure parts, large nozzle mold, small nozzle mold And simplify the nozzle mold, hot nozzle mold, one mold with one cavity, one mold with multiple cavities, ordinary row mold, ordinary inclined top mold, the teacher has accumulated rich practical experience in mold design, and is proficient in various toy molds and home appliance molds. , Mobile phone molds, case molds, automobile molds, overmold molds, two-color molds, blow molds, various export mold standards (HASCO DME MISUMI), etc., send AUTOCAD to the accompanying class.