How to deal with complex parting surface?
Some soles exist in small or multi-colored layers. In this case, it is necessary to do fractal processing, which is commonly referred to as double open mode and three open mode.It is very expensive to make the mold with the traditional metal mould, and the mould with fat mould has the characteristics of fast and cheap.The production method of multi - open mode is shown in FIG. 6-2.If the sole female is under the small sample of this shape, with one open mold is no good, because, on small under the big difference is too big, PU sole pouring off not to come out, after the completion of or rotten bubble problem.Therefore, in this case, double open mould must be used.The die frame of double open die is upper, middle and lower, and two hinges, as shown in FIG. 6-2(d).The difference between the production process and the single opening mold: after the die is finished, the middle layer is placed on the top of the brush, and then the upper layer is pressed to the solid layer, and finally the layer is filled.After the medium die frame is finished, make the mold.In this way, only one more intermediate mould frame is produced, and the other methods are made with single open mode.