这个半自动剪边机的用途是用在那些一端的内径外径上有溢边的园形橡胶件上的.将橡胶件套在芯棒上固定后,用旋转刀来切除其溢边.半自动机(见下图)由固定在底座上的环形板构成.在环形板上固定着园形转台,转台上固定着导向园形套筒,在套筒内安装着橡胶件用的芯棒. The purpose of this semi-automatic edge-trimmer is to use a round rubber part with an outer diameter on the inner diameter at one end. After fixing the rubber part to the mandrel, the rotary knife is used to cut off the overflow edge. (See below) consists of an annular plate fixed on the base, a circular turntable is fixed on the annular plate, a guide circular sleeve is fixed on the turntable, and a core rod for rubber parts is arranged in the sleeve.