What are the factors that affect the structure of precision mold processing?
Published on:
2022-04-18
1. Cavity arrangement. Determine the number of cavities and their arrangement according to the geometric structure characteristics of the plastic part, dimensional accuracy requirements, batch size, ease of mold manufacturing, mold cost, etc.
1. Cavity arrangement. Determine the number of cavities and their arrangement according to the geometric structure characteristics of the plastic part, dimensional accuracy requirements, batch size, ease of mold manufacturing, mold cost, etc.
2. Determine the parting surface. The location of the parting surface should be conducive to mold processing, exhaust, demolding and molding operations, the surface quality of the plastic parts, etc.
3. Determine the pouring system (main sprue, sub sprue and gate shape, location, size) and exhaust system (exhaust method, exhaust slot location, size).
4. Choose the ejecting method (ejecting rod, ejecting tube, ejecting plate, combined ejecting), decide the side concave treatment method and core extraction method.
5. Decide the cooling and heating method and the shape and position of the heating and cooling groove, and the installation part of the heating element.
6. According to the mold material, strength calculation or empirical data, determine the mold part thickness and shape size, shape structure and the position of all connection, positioning and guiding parts.
7. Determine the structure form of main molding parts and structural parts.
8. Consider the strength of each part of the mold and calculate the working dimensions of the molded parts.
If these above problems are solved, the structure form of the mold is naturally solved. At this time, you should start to draw the sketch of the mold structure to prepare for the formal drawing.
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