自行车转铃中的打垂臂零件(见图1)压弯,历来是手工单件操作,生产效率低,劳动强度大,而且容易发生工伤事故。现改为采用二级送料半自动压弯模(如图2)工效提高3倍多,减轻了劳动强度,保证了安全生产。一、模具设计及结构模具由上模、下模和双层送料机构组成,双层送料机构是本模具改进的主要内容。10吨冲床滑块行程为45毫米,送料距离为110毫米。在送料距离大于滑块行程2倍以上的情况下,用斜楔或“人”字形滑块机构来完成自动送料比较困难。采用二级(双层)送料后满足了使用要求。图2中的中间抖槽2,其作用就是分级和待料,从 Bicycle bells in the swing arm parts (see Figure 1) bending, has always been a single manual operation, low productivity, labor-intensive, and prone to accidents. Now use the two-stage feed semi-automatic bending die (Figure 2) to improve work efficiency more than 3 times, reducing labor intensity and ensure safety in production. First, the mold design and structure Mold from the mold, the mold and double feeding mechanism, double feeding mechanism is the main content of this mold improvement. 10 tons of punch slider travel 45 mm, feeding distance of 110 mm. In the feed distance greater than 2 times the slider stroke more than the case, with a wedge or “person” -shaped slider mechanism to complete the automatic feeding more difficult. After using two (double) feed to meet the requirements. Figure 2 in the middle of the groove 2, its role is to grade and to be expected, from