Automatic generation technology of conformal cooling channels for injection mold
As a novel cooling channel structure,the conformal cooling channel has been increasingly applied in mold engineer-ing due to its superior cooling effect.However,due to the particularity of the conformal cooling channel,the process of creating its pipes is not easy.Aiming at the common problems of complex,time-consuming,and error prone operation in traditional design methods for injection mold conformal cooling channel,inspired by the internal conduit structure of lotus roots and combined with the design requirements of conformal cooling channel in actual mold engineering,a conformal cooling channel automatic generation algorithm was proposed.The basic idea of this algorithm was to first establish a series of reference planes along the height direction of the mold core as slicing layers.By slicing the mold parts layer by layer,the contour lines of the core on each slicing layer were obtained.Then,on each slice layer,a curve interference check was performed using a point by point scanning method with a speci-fied pipe diameter.The control points of the spline curve were selected,and a connection strategy was formulated to sequentially connect the control points on each slice layer using the spline curve,thereby obtaining the spline curve.Finally,a spline curve was used as the centerline for pipeline scanning to form a solid shape of the cooling channel.Using NX as the algorithm implementation platform,a seamless connection between the automatic design system of cooling channel and NX has been developed.Example veri-fication shows that this method significantly shortens the design time,reduces the workload of designers,and improves the design efficiency and quality of shaped waterways.
injection moldmold designconformal cooling channelconformal coolingcooling system
NETL
NSTL
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