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一、滚珠丝杆在注塑模中的应用原理滚珠丝杆运动系统,丝杆与螺母不直接接触,它们之间通过滚珠作相对运动。由于滑动摩擦变为滚动摩擦,所以传动摩擦系数仪为一般丝杆螺母传动的1.75％左右,大大提高了传动效率,可达96％。在塑料模具结构中,可以利用压机开模时的直线运动,通过滚珠丝杆机构变成螺纹型芯的旋转运动,从而实现螺纹制件自动脱模,比采用齿轮齿条及其它机械传动系统体积小、结构紧凑。
First, the principle of ball screw in the injection mold Ball screw movement system, screw and nut are not in direct contact with each other through the ball for relative motion. As the sliding friction into a rolling friction, so the transmission friction coefficient instrument for the general screw nut drive about 1.75%, greatly improving the transmission efficiency, up to 96%. In the plastic mold structure, you can use the linear movement of the mold when the press, through the ball screw mechanism into a rotary motion of the threaded core, so as to achieve automatic removal of threaded parts, than the use of rack and pinion and other mechanical transmission system Small size, compact structure.