| Summary: | 碩士 === 國立虎尾科技大學 === 機械與機電工程研究所 === 95 === The plastic optics lenses are difficult to manufacture in processing plasticity area. And they have homogeneous thickness characteristic shrink phenomenon of warping during formation process. It results in difficult to control the good rate in producing multi caves of optics products.
This study focuses on the sixteen caves with one model of the non-sphere optic lens of camera. In the fabrication of plastic optic lens, the parameters of shaping conditions and mold design have major influence in this processing.
Consequently, it is divided into two sessions to discuss. First of all, we use the mold flowing analysis software (Moldex 3D) to imitate the different runner geometry forms and design the independent cooling system to control the temperature of mould which is easily to control the shaping quality of model’s caves. The output data and picture are used as the basis of mold design.
Secondly, the temperature of mold and plastic is controlled separately during the practical process of shooting experiment to clarify the effect of cold mold wall to the residue stress.
From the experiment results , raising the temperature of mold will reduce the residue stress. In the writing transformation section, we used the mould and final product are measured by non-sphere rough instrument and the results shown that the condition of transformable writing is quite well.
|
|---|
