果蔬三维切丁机切丁断面形状偏差分析  

Section shape deviation analysis of fruits and vegetables three-dimensional dicing machine

作　　者：胡建平[1] 杨丽红[1] 杨德勇[1] 黄英飒[1] 

机构地区：[1]江苏大学现代农业装备与技术教育部重点实验室,江苏镇江212013

出　　处：《食品与机械》2015年第4期84-87,共4页Food and Machinery

基　　金：江苏省农机三新工程(编号:NJ2013-14)

摘　　要：果蔬三维切丁机具有加工效率高、结构紧凑、不易堵塞等优点,但其切丁断面始终存在倾斜不平现象,尤其在切大丁时更加明显。为了提高切丁质量,对三维切丁机切削机理进行分析,建立切丁刀切割果蔬丁断面曲线方程,分析影响丁断面切削质量的主要因素,并将丁断面形状归结为右偏、左偏及对称形3种结构形状,以丁断面相对偏差η、倾斜度l为评价指标,分析离心切削滚筒与切丁刀轴中心间距、离心切削滚筒与切丁刀轴转速比对断面质量指标的影响,通过双因素方差分析,得到切大丁时上述两因素对丁断面相对偏差η及倾斜角度l影响的权重关系,从而为切丁机参数优化提供依据。Three-dimensional dicing machine has some advantages of high efficiency, compact structure and not easy to be clogged. How- ever, there is always uneven phenomenon on the diced section, espe- cially when cutting big side block. In order to improve the quality of dice, analyzed the mechanism of three-dirnensional dicing, estab- lished the curve equation of inclined section of fruits and vegetables block, analyzed the main affecting factors of the quality of diced sec tion and divided diced sections into three shapes of right deviation, left deviation and symmetrical. Using relative deviation and gradient of the section as evaluation index to analyze the effects of center spac- ing and speed ratio between the strip cutting knife pivot and centrifu- gal cutting tumbling barrel on quality indicators of section. The date of two factor variance analysis showed that the weight relations be- tween the deviation and gradient of the section when cutting big side block. The result can provide the basis for dieing machine parameteroptimization.

关 键 词：果蔬切丁机 断面 形状 偏差 分析 

分 类 号：TS255.35[轻工技术与工程—农产品加工及贮藏工程]