| Silicone products molding mold modification, each silica gel factory will meet, may be because the customer in product design modification caused, also may be in order to improve the production process. For silicone rubber mold, mold modification is a big project, need of mould for welding, planted inserts, CNC machining, electrical discharge machining, polishing and so on. Seems to be quite complex, if you want to say simple, can be summed up as "plus glue" and "less plastic". The so-called "glue", refers to the product to increase the rubber material, such as expanding the volume of products and increase the height of the product, increase the volume of a certain part of the product, etc.. Due to the "glue" caused by the change of mode, in the operation is not very complicated, just according to the design of the corresponding part of the mold CNC or discharge machining can be completed. It is worth mentioning is that if it is mass production tooling, increased area of the product may not change the mode, as a set of production, the mould will open a lot of points, the spacing between each hole has been fixed, may will have no enough space to meet the increase in area of the product. Relatively "plus glue", "less plastic" to change the work will be more complex, in the product "glue" on the need to add steel mold, how to add? 1, if the less amount of glue "less can welding in the mold, and CNC or electrical discharge machining, just so easily in the mold leave welding scar, after molding products caused by the uneven surface and welding if the amount is too large, will cause the template deformation, the quality of mould; 2, if the less gum slightly larger, welding is unable to meet the, which requires in mold will need minus glue "location" dug out, and plunged into the steel inserts, CNC and electrical discharge machining; doing so will also leave a scar. 3, if the template is thick enough can the first template drop surface, then CNC or electrical discharge machining, this operation will not leave a scar on the die, will not cause the template deformation, but die processing volume, only to open a new mold; 4, if the above three points are not applicable, then report template to re mold the waste. In summary, in the design of a new product or silica gel mold design, be sure to try to consider assessment follow-up may occur abnormal, for the product and mold structure at once set to avoid subsequent modifications to the mold. If it is not sure, you can first open sample mould sample, with the sample through the open mold production. |