Multi-roller cold pilger mill with roller swing mechanism

The invention provides a multi-roller cold pilger mill with a roller swing mechanism. Comprising a roller rotating mechanism, a rack trolley (2) and a machine head sleeve (5), wherein the roller rotating mechanism consists of a rotating spline shaft (1), a sliding gear (4) and a shifting ring (3); the machine head sleeve (5) is mounted in the rack trolley (2); and the rack trolley (2) is in acting connection with the roller swing mechanism. The roller in the machine head sleeve is driven to rotate through the rotating spline shaft, the sliding gear and the machine head sleeve gear, the rack trolley drives the sliding gear to reciprocate on the rotating spline together through the shifting ring, and the purpose that the sliding gear reciprocates linearly along with the rack trolley to drive the roller to rotate is achieved. The problems of deflection deformation, inaccurate rotation angle and the like caused by rotation of the core rod in the prior art are solved. The device is simple in structure, easy to dis