一般母模设计（General die design）.doc

一般母模设计（General die design） Design of general mold mold of the general: The die is the main component of the product shape molding. The structural features: processing method with the structure of the products and mould change. The advantages of the combination together: The cavity is complex, if the overall structure, difficult processing. So the structure of die combination. At the same time can make the performance of the mold edge material is lower than that of the base mould material, avoid the integral die using the same material economy, due to the die insert structure can reduce the deformation through the gap to exhaust, mold heat. For easy to wear in the mold parts by inlaying, can facilitate the maintenance of the mold, avoid mold integral scrap. The shortcomings of the combination: Combination die rigidity than the integral in the plastic surface traces, complex die structure. (the balance of deformation can be inlaying the structure). 1. integral die A. complete integral mold: It is composed of a piece of material made of this kind of structure is relatively simple, not easy to deformation and good product quality, if the plastic products are complex, the processing method of the general manufacturing base model cavity is more difficult. So for the whole and complete type of simple plastic parts. B. embedded module base: It belongs to the evolution of a completely integral die, is a complete integral die into concave module embedded into the fixing plate, or embedded in the mould die box to the fixed plate in the form of block. Plate fixed plate or mould frame 2. concave module + local inlaying embedding, is in charge of all the concave module or the whole embedded concave module easily damaged parts and parts of hard machining Design of molding part First, determine the parting surface In order to remove the plastic parts and the runner system and removed from the closed mold, and placed in order to insert the mold properly into two or several parts, th