Small nozzle mold: runners and gates are not on the parting line, generally directly on the product, so it is necessary to design more than one set of nozzle parting lines, the design is more complex, and the processing is more difficult. Generally, the small nozzle should be selected according to the product requirements. mold system.
1. Appearance difference: the four outermost guide edges of the shroud mold are smooth, while the simplified shroud mold has mesons at the ends of the guide edges; the front part of the shroud mold has four long guide edges to make the front mold accurate Movement to ensure the accuracy of mold clamping, so there will be 8 holes on the four sides of the front mold of the fine nozzle mold blank, and there will be four holes in the rear mold; the guide column of the mold blank of the fine nozzle mold needs to add two to four because there are no mesons. The plug is screwed, so after the mold is processed, there will be 10 to 12 holes in the outer frame of the front mold base of the fine nozzle mold.
2. Differences in use: the eight guide edges of the fine nozzle mold are strong and powerful, which can be tolerated on large molds; the simplified fine nozzle mold is mainly used for oblique or large rows in the upper and lower directions of the product, occupying the guide that supports the front mold. Edge space, if the narrow nozzle mold is used, the mold base will increase and the mold cost and injection cost will increase. It is used to avoid this situation, but the simplified narrow nozzle mold mold base is generally used on small molds, and molds above 4040 It is not recommended to use a simplified nozzle mold, and in the mold base standard, if you look carefully, it seems that there is no simplified nozzle mold above 6565.
3. Cost difference: Because the fine nozzle mold has four more guide edges, the difficulty of processing and coordination increases, so the price of the mold base is generally 1.3 to 1.5 times that of the simplified nozzle mold. When the price is not high, it is better to use the simplified nozzle mold.
For more information, please consult Jingwei Mould.