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What to pay attention to when manufacturing plastic blow mold
Edit:Taizhou Huangyan Yige Machinery Co., Ltd.   UpDate:2019-08-07

What should be paid attention to in plastic mold manufacturing? First of all, it depends on the complexity of the mold structure. Generally speaking, it takes about one month to open a plastic mold. The molds with complicated process will take longer. Usually, opening a plastic mold requires a detailed audit. After the approval is passed, the mold can be opened. After a plastic mold is opened, a mold test is required. The following injection molding industry experts share with you the following items needed for plastic mold manufacturing? Let me list five important points with you.
1. The cooling (water passage) in the mold is related to the product size, shape, plastic properties, holding time and other factors.
2. The roughness level in the cavity of the bottle blowing mold must reach "mirror level", otherwise the product is difficult to demold, and the product needs to be overpowered when ejected, causing product damage. The roughness of the positioning pin, the clamping surface and other parts are all standard.
3. The injection path should be selected reasonably, so that the material can reach each place evenly (equal flow path), and there must be sufficient storage to ensure that the plastic is replenished during the shrinking process. Moreover, the shrinkage coefficient of each material is different, and the mold must have a reasonable shrinkage rate.
4. The plastic mold must have sufficient rigidity, otherwise deformation will occur during mold clamping and holding, which will cause "flash" to select a reasonable exhaust position and amount control. Otherwise, the plastic injection will be dissatisfied and the product will be “out of stock”.
5, the mold and injection molding machine should be fixed in a reasonable manner, it must be reliable and firm to prevent accidents caused by displacement during mold clamping. It should be easy to disassemble, and also, a reasonable demoulding method and a reasonable position and number of ejector rods must be selected to ensure that the product is not damaged during ejection.