Guide pulley assembly

The utility model discloses a guide pulley assembly, including guide pulley, copper sheathing and bearing, the center pin of guide pulley is installed on the bearing, the bearing is installed in the mounting hole of copper sheathing, its characterized in that the wire casing of V type is seted up to the periphery of guide pulley, extend to both ends on the circumference surface of guide pulley hasV type assistant. Compared with the prior art, the utility model the molybdenum filament of not only being convenient for put improves the safe shape of wire -electrode cutting, and V type assistantcan make the saponification liquor throw away to the both sides end of guide pulley in addition, prevent that the saponification liquor from getting into the bearing in, avoid the bearing impaired. 本实用新型公开了种导轮总成，包括有导轮、铜套及轴承，所述导轮的中心轴安装在轴承上，所述轴承安装在铜套的安装孔内，其特征在于所述导轮的圆周面开设有V型的线槽，所述导轮的圆周表面向两端延伸有V型羽翼。本实用新型与现有技术相比不仅便于放钼丝，提高线切割的安全形，而且V型羽翼会使皂化液向导轮的两侧端甩出，防止皂化液进入轴承内，避免轴承受损。