Anti-pinch roller device and conveying system

The invention discloses an anti-pinch roller device and a conveying system. The anti-pinch roller device comprises two supporting pieces, an induction roller, a drooping piece and a speed measuring piece. Each supporting piece is provided with a first end, a second end and a connecting part located between the two ends, and the connecting parts are rotationally connected with the belt conveyor. The induction roller is connected with the first end. The drooping piece is connected with at least one second end and used for enabling the induction roller to move upwards and be attached to the conveying belt. The speed measuring piece is installed on the induction roller and used for measuring the rotating speed of the induction roller. In other words, the conveying belt drives the induction roller to rotate, the rotating speed of the induction roller is made to be a preset speed value, if the belt conveyor is clamped, goods can be rolled between the conveying belt and the induction roller, the rotating speed of th