摘要
针对多针头式静电纺丝产品横向均匀度较差的缺点,提出一种基于不完全齿轮齿条机构的新型线性模组结构。该结构能够实现往复式线性运动,可实现纺丝头的连续匀速横动,运行平稳,简单可靠,且不需要控制系统。机构由1个主动不完全齿轮和1个从动双侧齿条框组成,由于齿轮齿条传动具有恒定传动比的特性,使得主动不完全齿轮的连续单向转动转化成从动双侧齿条框的匀速往复直线运动。这种机构应用于多针头静电纺丝的实验结果论证了其功能性、有效性和可靠性,可使静电纺丝膜的横向均匀度从32.2%降低到2.7%,纵横向强力比也由2.15下降为1.03。
In order to improve the poor uniformity in cross machine direction （CD） of the nanofibrous web during eleetrospinning process, a new linear module structure based on the incomplete gear and rack mechanism was proposed and applied in this study, which is simple and reliable, making the spinneret on it to reciprocate continuously at uniform speeds, and moving stably along CD without a control system. The proposed mechanical structure consists of an incomplete driving gear and a slave bilateral rack box, with the continuous unidirectional movement of the former transforming to the continuous uniform reciprocating traverse motion of the latter, based on the constant transmission ratio which is the feature of gear and rack drive. The results from the electrospinning experiments using the proposed mechanism as linear traverse system indicated its function, validity and reliability, which could improve the CD uniformity of the electrospun membrane from 32.2% to 2.7% , and the strength ratio of MD/CD from 2. 15 to 1.03.
出处
《纺织学报》
EI
CAS
CSCD
北大核心
2015年第7期116-120,共5页
Journal of Textile Research
基金
国家自然科学基金资助项目(51373121)
关键词
不完全齿轮
双侧齿条框
参数化设计
横动
静电纺丝
incomplete gear
bilateral rack box
parametric design
traverse
electrospinning
作者简介
刘健（1985-），男，讲师，博士生。主要研究方向为CAD／CAM一体化技术、新型纺织机械设计。
刘延波，通信作者，E-mail：yanboliu@gmail．com。
