A circulation protection device is provided for a conveyor-driven fabric dyeing machine that includes a machine body having a front end in which a fabric circulation detection idler and a fabric movement sensor are mounted and a rear end in which a rear fabric guide and a fabric management device are mounted. Control is conducted with a computer program so that when the fabric circulation detection idler detects the fabric is not in movement, the conveyor is shut down; and when the fabric movement sensor detects the fabric is moving excessively fast or slow or gets jamming and stopped, the conveyor is controlled to automatically adjust the speed thereof or stops operation. When the fabric falls from a dyeing tube down to a conveyor, the rear fabric guide adjusts an entry angle of the fabric and the fabric management device allows the fabric to be orderly deposited on the conveyor.

A circulation protection device is provided for a conveyor-driven fabric dyeing machine that includes a machine body having a front end in which a fabric circulation detection idler and a fabric movement sensor are mounted and a rear end in which a rear fabric guide and a fabric management device are mounted. Control is conducted with a computer program so that when the fabric circulation detection idler detects the fabric is not in movement, the conveyor is shut down; and when the fabric movement sensor detects the fabric is moving excessively fast or slow or gets jamming and stopped, the conveyor is controlled to automatically adjust the speed thereof or stops operation. When the fabric falls from a dyeing tube down to a conveyor, the rear fabric guide adjusts an entry angle of the fabric and the fabric management device allows the fabric to be orderly deposited on the conveyor.