食品装备管路自动涂胶装置及其挤出流道结构优化  

Automatic gluing device for food equipment pipeline and the optimization of its extrusion flow channel structure

作　　者：杨金山 汤晓华[1] 杨泗萍 刘鑫[1] YANG Jin-shan;TANG Xiao-hua;YANG Si-ping;LIU Xin(School of Artificial Intelligence,Beijing Technology and Business University,Beijing 100048,China;China Aviation Industry Standard Parts Manufacturing Co.,Ltd.,Guiyang,Guizhou 550014,China)

机构地区：[1]北京工商大学人工智能学院,北京100048 [2]中国航空工业标准件制造有限责任公司,贵州贵阳550014

出　　处：《食品与机械》2022年第1期87-92,151,共7页Food and Machinery

摘　　要：目的:获得食品加工输送管路缠绕加热带表面粘接剂均匀、可控涂抹的胶层。方法:通过流变学试验获取硅橡胶本构模型,利用Polyflow仿真硅橡胶挤出流动过程,以加热带长度、宽度方向涂胶均匀性为目标,开发挤出试验机电系统,分析不同流道出口收缩段长度、出口厚度下的流速和体积流量分布特征,优化流道出口结构参数,经涂胶试验验证胶层均匀性,并迭代流道出口结构。结果:硅橡胶具有剪切变稀的特性;当收缩段长为5 mm,口厚为0.8 mm并在出口中心处距离边缘3.5 mm的位置线性扩展至1.05 mm时,涂胶均匀性最佳。结论:对硅橡胶流道出口两端边缘厚度加以线性扩展,能够改善涂胶均匀性;出口与加热带的间距及硅橡胶流速与缠绕速度匹配性是影响涂胶均匀性的另一关键因素。Objective:The adhesive layer of food processing and conveying pipeline winding and tropical surface adhesive was obtained.Methods:The silicone rubber constitutive model was obtained through rheological test,and POLYFLOW was used to simulate the silicone rubber extrusion flow process.Aiming at the gluing uniformity in the length and width direction of the heating belt,the extrusion test electromechanical system was developed to analyze the flow velocity and volume flow distribution characteristics under different channel outlet shrinkage section length and outlet thickness.The channel outlet structural parameters were optimized,The uniformity of adhesive layer was verified by gluing test,and the outlet structure of runner was iterated.Results:Silicone rubber has the characteristics of shear thinning.Within the set parameters of the extrusion runner structure:the length of the shrinkage section of 5 mm,the mouth thickness of 0.8 mm,and the center of the runner outlet of 3.5 mm away from both sides.The runner structure with linear expansion was the best structural parameter for the uniformity of glue application.Conclusion:Silicone rubber is a pseudoplastic non-Newtonian fluid.The coating uniformity can be improved by linearly expanding the edge thickness at both ends of the runner outlet.The distance between the outlet and the heating belt and the matching of silicone rubber flow rate and winding speed are another key factor affecting the uniformity of gluing.

关 键 词：管路 硅橡胶 涂胶 挤出流道 均匀性 

分 类 号：TS203[轻工技术与工程—食品科学]