Passive formula cam opening mechanism

The utility model discloses a passive formula cam opening mechanism belongs to the air jet loom field, aims at providing a passive formula cam opening mechanism who improves the fabric variety, its technical scheme as follows, heald frame saddle, heald frame, the heald frame actuating mechanism of setting on the heald frame saddle in the frame reaches back comprehensive part including frame, setting, heald frame actuating mechanism include by drive motor drive pivoted belt pulley, be used for installing the belt pulley the transmission shaft, with transmission shaft coaxial arrangement's drivegear, drive the pivoted shedding cam and along the rolling cam rotor of opening cam profile by drive gear, the shedding cam drives the operation by drive gear, the shedding cam is eight circulation cams. Eight circulation cams have been adopted to extend passive formula shedding cam air jet loom's variety accommodation, improved the utilization ratio of loom. 本实用新型公开了种消极式凸轮开口机构，属于喷气织机领域，旨在提供种提高织物品种的消极式凸轮开口机构，其技术方案如下，包括机架