为了便于在图1所示的弹簧上装拉板,必须在热处理前将弹簧端头两圈劈开一段距离。这一工作过去是用手工操作的,劳动强度高,效率低。最近市劳动模范庄旭友师付制成一台电动劈缝机,如图2所示。电动机旋转通过皮带轮等部件即可带动切缝刀上下摆动,这时只要将弹簧用手送到限位器及定位板处,即可将端头一圈劈开。使用这台机器改善了劳动条 In order to facilitate drawing the spring on the plate shown in Figure 1, the spring tip must be split two turns before the heat treatment. In the past, this work was carried out manually, with high labor intensity and low efficiency. The recent model worker Zhuang Xuyou Zhuang made an electric split seam sewing machine, shown in Figure 2. The motor rotates through the pulley and other components to drive the slit knife to swing up and down. At this moment, the spring can be manually split to the stopper and the positioning plate by the hand. Use this machine to improve the work of the bar