The utility model relates to an it prunes machines to articulate formula tea garden side belongs to forestry machine technical field. These machines include and articulate the vertical electric push rod mechanism that mounting and draft frame are connected through upper and lower that electric push rod mechanism's movable block and outer casing subassembly link firmly, the upper end of outer casing subassembly links firmly with horizontal axis hydraulic motor's mount pad, and keeps away from the fixed vertical tool magazine in the one side that articulates the mounting, hydraulic motor's output shaft has two staggered eccentric wheels of angle position, and to constitute vertical removal vice for cutting blade about tool magazine and shaving form, two eccentric wheels respectively about through the connecting rod cutting blade's upper end is articulated about with constitutes eccentric wheel slider mechanism. The utility model discloses not only avoid phenomenons such as excessive wear, fracture, avoided the machines lower extreme to lead to the fact tea branch strip card to block up and the damage tea tree simultaneously to properly solve work height make things convenient for theregulation problem, in addition, can avoid the rigid shock to cause the blade to damage with the help of hydraulic overload protection characteristic.