Study On Shoulder Of Packaging Machines

Shoulder is a key part of forming, filling and closing packaging machines, which has direct effect on packaging style, size and product quality. First the article researches the relationship of geometrical and parameter on circle section shoulder,by defining the general locaton's focus point,gets the formulation of maximal height of h and minimal area of S and analyzes the effects on shoulder by changing the focus point and the back plane angle.Such provides certain theorial basis for structural optimization of shoulder.In order to enrich packaging styles,this article establishes detail mathematical model of elliptical and heart section shoulder of packaging machines which provide the mathematical basis for such two types sections shoulder,and also gives way of CAD on computer,so changes the traditional manufacturing way of shoulder.This article also establishes mathematical model of tapezoid shoulder,in which the focus point lies on a special plane,and then analyzes such situation that foucs point lies on common palne,and analyzes the trend of structural changing whith change of foucs poingt.Researches relationship between trapezoid section and other section such as circle,triangle,rectangle and flat circle,such gives a synthetical math model for other section shoulder, way of CAD also provided. All the mathematical models are validated on computer by 3-D software of Pro/engineer WF2.0。...