衣架式米粉挤丝机机头的设计  

Design of coat-hanger die using in rice noodles wire extruding machine

作　　者：胡淑珍[1] 周海军[1] 孙志宏 刘印志 马显军 HU Shu-zhen ZHOU Hai-jun SUN Zhi-hong LIU Yin-zhi MA Xian-jun(Chinese Academy of Agricultural Mechanization of Science, Beijing 100083, China China Machinery Kangyuan Cereals and Oils Equipment （Beijing ） Co., Ltd., Beijing 100083, China)

机构地区：[1]中国农业机械化科学研究院,北京100083 [2]中机康元粮油装备(北京)有限公司,北京100083

出　　处：《食品与机械》2016年第10期69-73,85,共6页Food and Machinery

基　　金：2015年粮食公益性行业科研专项(编号:201513003)

摘　　要：为了提高米粉加工的自动化程度和降低劳作强度,设计一种衣架式米粉挤丝机机头来解决米粉挤丝工艺中出丝速度不均的问题。基于流动基本假设、体积流量方程、流动平衡方程等推导计算出衣架式机头主体部分的结构尺寸;考虑到米粉属天然高分子物质,设计了调节机构和加热系统。衣架式机头是利用泪滴型歧管的分配作用、调节机构调节流道截面和加热系统改变米粉物性参数来实现挤丝速度均匀性的。验证实验结果表明:该衣架式米粉挤丝机头显著提高出丝速度的均匀性,RV值降低到5%以下,符合设计要求。In order to improve the degree of automation and reduce la bor intensity in the rice noodles processing, designed the coat-hanger die of rice noodles wire extruding machine to solve rice crowded une- ven wire speed problem in the process of silk.Based on the flow basic assumptions, volume flow equation and the flow balance equation is derived to calculate hangers type main part of the structure of the Coat-Hanger Die size. Considering the rice noodle is a natural polymer material, adjusting mechanism and the heating system is de- signed. The Coat-Hanger Die realize the crowded wire velocity uni- formity by using the tears manifold distribution function, regulator to adjust flow channel section and the heating System change rice physical parameters. The results showed that the Coat-Hanger Die improves the uniformity of the wire speed and that the RV value re- duced to below 5 %, which is in good accordance with the designing requirement.

关 键 词：米粉 挤丝机 衣架式机头 出丝速度 

分 类 号：TS210.3[轻工技术与工程—粮食、油脂及植物蛋白工程]