常见的钣金生产线中的折弯模口结构,由于折弯以后夹角处的材料回弹量小,折弯后的产品会卡在两边的下模口上,当依靠皮带输送时,就无法将产品送出模口,如图3a所示。为此,在设计新飞冰箱的9工位门壳体成型生产线时,使用了如图3b所示的一种弹起回收式模口,使产品折弯后能从下模口处 Common sheet metal production line in the bending die structure, the bending angle after the material at the small amount of springback, bending the product will be stuck in the lower die on both sides, when relying on the belt transport, you can not be Product delivery die, as shown in Figure 3a. To this end, in the design of the new fly-9-door door shell molding production line, the use of a bounce shown in Figure 3b recovery mold, the product after bending from the mold at the mouth