点阵式点胶系统胶点重量一致性研究  

Study on weight consistency of glue dots made by dot-matrix dispensing system

作　　者：仝崇楼[1,2] 赵静[1] 任飞[1] 李春风[3] 李勇 TONG Chonglou;ZHAO Jing;REN Fei;LI Chunfeng;LI Yong(School of Mechanical Engineering,Xijing University,Xi′an 710123,CHN;Engineering Institute,Air Force Engineering University,Xi′an 710038,CHN;Industrial Technology Center,Chengde Petroleum College,Chengde 067000,CHN;Bochi Machine Tool Group Co.,Ltd.,Baoji 721013,CHN)

机构地区：[1]西京学院机械工程学院,陕西西安710123 [2]空军工程大学工程学院,陕西西安710038 [3]承德石油高等专科学校工业技术中心,河北承德067000 [4]宝鸡机床集团有限公司,陕西宝鸡721013

出　　处：《制造技术与机床》2021年第12期101-104,共4页Manufacturing Technology & Machine Tool

基　　金：陕西省教育厅专项科研计划项目(16JK2248);国家科技重大专项基金(2017ZX04011010)。

摘　　要：针对接触型点胶系统胶点一致性差的问题,研发了点阵式微喷嘴点胶系统,利用Ansys-Fluent软件的CFD数值模拟功能研究了4种类型点阵喷嘴受胶体压力的变形量,通过点胶实验分析了挤胶活塞速度对胶点重量一致性的影响。研究表明:点阵喷嘴受胶体压力后的变形量呈中间大四周小的趋势,Type-3型点阵喷嘴受胶体压力后的变形量最小;胶点重量由点阵喷嘴的中间向边缘逐渐减小,胶点重量的一致性随着胶体流速增大而变差,挤胶活塞的最佳速度是25 mm/s。Aiming at the problem of poor consistency of glue dot in contact dispensing system.The dot-matrix micro nozzle dispensing system was developed.The deformation of four types of dot-matrix nozzles under glue pressure was studied by CFD simulation function of Ansys-Fluent software.The influence of extrusion piston speed on the consistency of weight of glue dots was analyzed through dispensing experiment.The results show that:the deformation of dot-matrix nozzle under glue pressure tends to be larger in the middle and smaller around,and the deformation of Type-3 dot-matrix nozzle under glue pressure is the smallest;the weight of glue dot decreases gradually from the middle of dot-matrix nozzle to the edge,and the consistency of glue dot weight becomes worse with the increase of the glue flow rate,and the optimal speed of extrusion piston is 25 mm/s.

关 键 词：点胶系统 挤胶活塞速度 胶点 重量一致性 

分 类 号：TH112[机械工程—机械设计及理论]