What are the factors that affect the precision mold processing structure?
1. Cavity arrangement. The number of cavities and their arrangement are determined according to the geometrical characteristics of the plastic parts, the dimensional accuracy requirements, the batch size, the difficulty in mold manufacturing, and the cost of the mold.
2. Determine the parting surface. The location of the parting surface is conducive to mold processing, exhaust, demoulding and forming operations, surface quality of plastic parts, etc.
3. Determine the gating system (the shape, position, and size of the main runner, split runner, and gate) and the exhaust system (the method of exhaust, the location and size of the vent).
4. Select the ejector mode (top rod, top tube, push plate, combined ejector) to determine the undercut treatment method and core pulling method.
5. Determine the shape and position of the cooling, heating method and heating and cooling grooves, and the mounting location of the heating element.
6. According to the mold material, strength calculation or empirical data, determine the thickness and shape of the mold parts, the shape structure and the position of all connections, positioning and guides.
7. Determine the structural form of the main molded part and structural part.
8. Consider the strength of each part of the mold and calculate the working size of the molded part.
If these problems are solved, the structural form of the mold will naturally be solved. At this point, you should start sketching the mold structure and prepare for the formal drawing.
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