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针对环形链条目前需二次成形的工艺,从模具结构上进行了改进。首先用坯料将已经弯曲的圆环链穿起来放在凸模上定位,再采用弹性(浮动)凸模与侧压块结构,对坯料进行一次弯曲成U形,然后利用侧压块对已经压弯的坯料进行侧弯。这样,环形链条就能在一副模具上一次成形。该成形模具结构并不复杂,但能节省一套模具,减少一半人工工时。该模具可靠性高,使用简单,极具推广价值。
In view of the current need for secondary forming chain ring process, from the mold structure has been improved. Firstly, the bent circular chain is put on the punch by using the blank to be positioned, and then the elastic (floating) punch and the side pressing block structure are used to bend the blank once into a U shape, and then the side pressing block is used to press the already pressed Bent blank to bend. In this way, the endless chain can be formed on a single mold. The forming mold structure is not complicated, but can save a set of molds and reduce man-hours by half. The mold reliability, easy to use, great promotional value.