Transactions of Materials and Heat Treatment

Title：Design on stamping process and die structure for yarn guide needles

Authors： Zhao Feng Fan Jinhui Bai Yunfeng Zhu Shigen

Unit： Donghua University

KeyWords： yarn guide needles stamping process layout die design progressive die

ClassificationCode：TG385.2

year,vol(issue):pagenumber：2017,42(12):114-117

Abstract：

For the forming difficulty and technical requirement of yarn guide needles, the stamping process and structure of multi-position progressive die were designed, and the characteristics of yarn guide needles，stamping process，die structure and working parts were described in detail. Then, the once forming was conducted by die in plastic deformation area to avoid dimensional error caused by plastic deformation of strip, and the guide piece and guide pin were applied to assure the concentricity of pinhole and outer arc and the feeding precision. Furthermore, the protective sleeve was applied to assure the strength and rigidity of piercing punch, and the twice fine-blanking technology was applied to increase the bright region of blanking section. At last,

the inserted die was applied to simplify the die structure and convenient to repair. The production practice proves that the stamping process is rational, the die structure is safe and reliable, and the production quality is stable.

Funds：

上海市重点学科建设项目基金资助（B602）；上海市科委2016年项目资助（16DZ0502200）

作者简介：赵峰（1992-），男，硕士研究生 E-mail：zzff9999@sina.com 通讯作者：范金辉（1970-），男，博士，副教授 E-mail：matthewchao@foxmail.com

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