Open-width roll inspecting machine

The utility model belongs to the technical field of open-width roll inspecting machines, and particularly relates to an open-width roll inspecting machine which comprises a mounting plate, a bolt is arranged on one side of the top of the mounting plate, a sliding groove is formed in the mounting plate far away from the bolt, and a sliding block is arranged in the sliding groove. The electric push rod is started to contract, so that the elastic force of the spring pushes the L-shaped clamping plate to move backwards along the sliding groove and be separated from the base, a worker can directly take down the device from the mounting plate, and due to the design, the worker does not need to spend much time and energy to dismantle the bolt when the device is dismantled, and the work efficiency is improved. The LED light source and the shadowless lamp light source are matched with each other to provide double light sources, and meanwhile, an operator can randomly adjust the brightness of the LED light source and t