Simulation offlexible media transfer by pinching belts in automated postal classification machine

基本皮带-滚筒系统在载荷作用下的张力和速度(1)皮带紧、松的张力之和或差分别等于初始张力或一个载荷重量的两倍。(2)皮带与滚筒之间的滑移量随着载荷的增加而增大，然后皮带和从动辊的速度减小。(3)提出了一个简单的计算皮带张力、摩擦力和皮带速度的解析模型。当给出作用在皮带和滚筒上的反作用力时，可以计算出皮带的张力、应变和速度。(4)传动带和从动带之间的滑移量随着压带力、摩擦系数和皮带初始张力的增加而增加。(5)介质相对于从动带的滑移量随着压带力和皮带初张力的增加而增加，但不受介质厚度和摩擦力的影响。媒体的移动速度比从动皮带快一点。

Tension and velocity of fundamental belt-roller system under load operation(1)The sum or the difference of tensions of belt tight and loose ide equals twice of initial tension or a load weight respectively.(2)The slip between the belt and rollers increases with the load weight and then velocities of belt and driven roller decrease.(3)A simple analytical model is proposed for calculating the belt tension, friction force and belt velocity. When reaction forces acting on the belt and rollers are given, the tension, strain and velocity of belt can be evaluated.Flexible media transfer by pinching belts(4)The slip between the drive belt and driven belt increases with belt pressing force, friction coefficients and belt initial tension.(5)The slip of a media against the driven belt increases with the belt pressing force and belt initial tension, while it is not affected with the effects of the media thickness and friction force. The media moves a little bit faster than the driven belt.