Box board cold-milling roll

The utility model relates to a box board cold-rolling mill, mainly used for the production of sideboards of vehicle boxes and semi-mounted sideboards of vehicle boxes. The utility model comprises a bottom bracket, a feeding even-up roller, an offset adjuster, a one-level center shaped roll, a two-level form-raised roll, a three-level form-raised roll, a four-level shaped roll, a reshaped roll and an aligning combined roll. Each cold roll of each level is divided into an upper roll and a lower roll which are installed on a combined bearing bracket. The shaft head of one end of the upper roll and the lower roll is provided with gears and the two gears are engaged with each other. The shaft head of the lower roll of each cold roll of each level is provide with chain wheels which are connected by chains. A motor is connected with a speed reducer and connected with one lower roll of one intermediate-level cold roll. The utility model utilizes the motor and the speed reducer as drive dynamics, and by the drive of multilevel chains, the gears of the upper roll and the lower roll are engaged with each other but move in reverse direction to drive materials. The junction of the speed reducer is chosen on the third path roll of the center, which is favorable to drive each fore-and-aft path roll to operate and reduce the charge of the operation of devices and power consumption.