Metformin hydrochloride sustained release tablet stamping die

Relates to the technical field of dies, and discloses a metformin hydrochloride sustained-release tablet stamping die which comprises a bottom plate, a plurality of telescopic columns are fixedly connected to the upper end face of the bottom plate, a top plate is fixedly connected to the telescopic columns, a movable plate is movably arranged outside the telescopic columns in a sleeved mode, and the top plate is fixedly connected to the bottom plate. An air cylinder is fixedly arranged on the bottom face of the bottom plate, the output end of the air cylinder penetrates through the bottom plate and is fixedly connected to the bottom face of a movable plate, a groove is formed in the movable plate, a sliding strip is fixedly arranged on the inner wall of the groove, a mold plate is arranged in the groove in a sliding mode, and sliding grooves are fixedly formed in the two sides of the mold plate. The two sliding strips are both clamped in the sliding grooves in a sliding mode, a moving groove is fixedly formed