Device and method for off-line detection of circumferential appearance quality of cigarettes

A device for an detection of circumferential appearance quality of cigarettes, comprising a mechanical system, wherein the mechanical system comprises:

• a hopper,
• a feed roller,
• an auto-rotating roller,
• an upper chute, and
• a lower chute;
• wherein a surface of the auto-rotating roller is axially evenly provided with multiple first circular slots;
• the feed roller is provided at a lower right side of the hopper;
• the upper chute is provided between the feed roller and the auto-rotating roller;
• the lower chute is provided downstream of the auto-rotating roller;
• multiple distribution flaps are provided at an end of the lower chute;
• the feed roller is axially divided into multiple sections comprising spaced-apart fixed roller sections and spaced-apart rotatable roller sections;
• each of the spaced-apart fixed roller sections comprises a fixed roller;
• each of the spaced-apart rotatable roller sections comprises a rotatable roller configured to rotate along a central axis of the feed roller;
• surfaces of each of the fixed rollers and each of the rotatable rollers are axially evenly provided with multiple second circular slots;
• and
• the multiple second circular slots on the surfaces of each of the fixed rollers are fixed circular slots with a diameter of not less than 7.8 mm;
• and the multiple second circular slots on the surfaces of each of the rotatable rollers are slots with a diameter of 7.8 mm, 6.4 mm, and 5.5 mm.