Method for positioning a core in a mould

A method for determining the position of the cores in an injection mould, comprising the steps of:

• a) Collecting k cores noted R1 . . . Ri . . . Rk in a population of cores all produced from the same theoretical three-dimensional core model,
• b) making a three-dimensional model of each of the cores,
• c) relocating each of the three-dimensional models in space relative to 1 support points T1 . . . Tq . . . Tl of the core in the mould to obtain a relocated three-dimensional spatial model of each core V1,
• d) selecting the core noted Rrep the three-dimensional spatial model V1 of which has the least difference with the theoretical three-dimensional spatial model,
• e) relocating the three-dimensional model of the core Rrep with the theoretical three-dimensional spatial model by taking into account at least one functional face of the theoretical model of the core in order to obtain a relocated three-dimensional spatial model V2 of the core Rrep,
• f) repositioning the support points Tq so that it can support the core Rrep in the spatial position corresponding to the relocated three-dimensional spatial model V2 of the core Rrep.