| Accompany with the development of economy of our country and the fashion of people’s pursuit, a new packaging technology-mould in labeling get fast development in our country, however most of the core equipment of this technology needs to be imported.Based on this,this article obtains from the mould labeling injection, consider how to get a perfect products that have small amount of warping and no ink and wrinkling, study on injection molding machine, injection molding process. Send label making machine and mold design composite system aboat the theoretical analysis and innovative design.Mould in labeling product usually has thickness wall and require good Appearance quality,so requirements for injection molding machine is high injection speed, high precision and stability.According to the requirements, the injection power of hydraulic system, mold clamping system is considered in this paper.The differential hydraulic is adopted on cylinder Hydraulic system of Injection System, Two cylinder differential system was deduced with high speed and stable effect by mathematical modeling;The clamping system of injection molding machine also affects the precision of the products,At the same time clamping system also affects the capacity of injection and saving energy, so several parts of hyperbolic elbow clamping system is optimized,The largest and most vigorously magnification part size was found, the hyperbolic model of the elbow was designed according to the results of the optimization.In order to improve the productivity, automatic labeling machine is designed by the characteristics of labelling,realized the automation of the whole production.The most common problem of labelled products is to break the ink and wrinkling, In addition to this also have buckling deformation.This article solve these problems simply consideration the injection molding process,summed up that in the plastic,the allowed temperature range of injection, the hinger of temperature the smaller of shear stress, while break ink and wrinkle problems will be less:The problem of warping deformation was analyzed by pressure keeping and cooling to slove,The volume shrinkage rate and the volume shrinkage rate differences were reduced by changing the temperature and optimizing the cooling line;Through two times pressure curve optimization, the products volume shrinkage ratio and volume shrinkage difference were greatly reduced,achieved the purpose of the balanced pressure,products possess almost same shrinkage, warping deformation is greatly reduced;The biggest influence factors and the optimal combination factors has founded by orthogonal optimization that analysis warping deformation and the deformation,make the product volume shrinkage rate of optimize decreased from8.4%to8.4%.The simulation analysis aboat mould of mould in labeling whether suitable for the hot runner technology has been carried on,found that hot runner technology was applied can improve quality of mould labeling products through reduce break ink, wrinkling and can product rapid filling to slove the problem of thin wall products.According to the result of simulation analysis,design a set of flip mold that application of hot runner technology with innovation,the backoff mechanism and ejection mechanism of products were placed in famale die.famale die adopt traditional Oil cylinder ejector,Oil cylinder inside the mold, and do not take up outside space. |
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