The structure of a plastic syringe is relatively simple. Plastic syringes are safe to use and can be used in a single dose, which can effectively avoid cross infection. Below we mainly introduce the two main parts of the plastic syringe jacket mold and core rod mold introduction.
Outer cover mold: The main processing part of the syringe is the sleeve. Because the wall thickness is relatively thin and the molding is relatively difficult, through repeated experiments, the mold structure of "fixed distance parting two-point gate" is used, and there are two point gates on the end face of the product. During injection, because the material flow is uniformly injected into the cavity along the two-point gate, the mandrel is not skewed, the residual melting marks on the gate are small, and it automatically breaks off and falls, thereby improving the appearance quality of the product.
Mandrel mold: The mandrel is the second most important part of the product. The structure is cross-shaped. The two-plate mold is used to process the cross ribs by electric spark. It can also adopt a multi-block combination structure, which can be processed by wire cutting equipment to reduce the cross ribs, and then assembled after polishing.
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